HARDWICK E'S Science-Gossip 1878. a WORKS BY THE EDITOR OF " SCIENCE GOSSIP, HALF-HOURS IN THE GREEN LANES: a Booh for a Country Stroll Illustrated with 300 Woodcuts. Fourth Edition. Crown 8vo., cloth, 4s. HALF-HOURS AT THE SEA-SIDE; or, Recreations with Marine Objects. Illustrated with 150 Woodcuts. Third Edition. Crown 8vo., cloth, 4s. GEOLOGICAL STORIES : a Series of Autobiographies in Chronological Order. Fourth Edition. Illustrated with 175 Woodcuts. Crown 8vo., cloth, 4s. THE AQUARIUM ; its Inhabitants, Structure, and Management. Illustrated with 239 Woodcuts. Crown 8vo„ cloth extra, 6s. FLOWERS; their Origin, Shapes, Perfumes, and Colours. Illustrated with 32 Coloured Figures by Sowerby, and 161 Woodcuts. Second Edition Crown 8vo. cloth, 7s. 6d. NOTES ON COLLECTING AND PRESERVING NATURAL HISTORY OBJECTS. Edited by J. E. TAYLOR, F.L.S., F.G.S. Contents: Geological Specimens by the Editor; Bones, by E. F. Elwin ; Birds' Eggs, by T. Southwell, F.Z.S. ; Butterflies and Moths, by Dr. Knaggs ; Beetles, By E. C. Rye, F.Z.S. ; Hymenoptera, byj. B. Bridgman ; Fresh-water Shells, by Professor Ralph Tate, F.G.S. ; Flowering Plants, by James Britten, F.L.S. ; Mosses, by Dr. Braith- waite, F.L.S. ; Grasses, by Professor Buckm an ; Fungi, by Worthington G. Smith, F.L.S. ; Lichens, by Rev. James Crombie, F.L.S. ; Seaweeds, by W. H. Grattan. Illustrated with numerous Wood- cuts. Crown 8vo., cloth, 3s. 6d. HARDWICKE & BOGUE, 192, PICCADILLY. I yU HARDWICKE'S AN ILLUSTRATED MEDIUM OF INTERCHANGE AND GOSSIP FOR STUDENTS AND LOVERS OF NATURE. EDITED BY J. E. TAYLOR, Ph.D., F.L.S, F.G.S., F.R.G.S.I, & c . VOLUME XIV. LONDON: HARDWICKE & BOGUE, 192, PICCADILLY. 1878. WYMAN AND SONS, ORIENTAL, CLASSICAL, AND GENERAL PRINTERS, GREAT QUEEN STREET, LONDON, W.C. 10 if? f PREFACE. -o-0«^jt£oo- O write a Preface year after year for a volume like Science-Gossip, to mean the same thing, and yet to say something new, would be a tax upon the ingenuity of the most skilful writer. Nevertheless, the Editor feels it both a duty and a pleasure to take such an opportunity of expressing his gratitude towards so many cheerful helpers, his sympathies with diligent students and inquirers with whom he has been in silent monthly communication, and his hopeful anticipations that the time to come may find him surrounded by as many friends as at the close of the eventful year 1878. The last four years have been fruitful beyond measure in Scientific discoveries. In Physical Science, the numerous revelations have been almost startling in their novelty, and these have culminated in that simple and yet wonderful instrument, the Microphone. To listen to the tramping of insects is like hearing the " footfalls on the boundary of another world." Is it possible that the Microphone will be to organic sound what the Microscope has been to vision ? Shall we listen to the love-narratives of insects as we do unaided to those of birds, or be possible hearers of their domestic squabbles ? Unhappily, it would seem as if Science, like some land of Goshen, were the only arena where Peace may find a perpetual home! For, although scientific men, as inheritors of a long ancestry of the spirit of partisanship, cannot avoid taking sides in debating the great questions which are continually raised in their unfettered investigations of natural phenomena; they do not condemn each PREFACE, other to pains and penalties for daring to disagree. No sword is here wielded, nor artillery thundered, to determine by force what calm reason finds herself unable to settle. Rather, a greater incentive to further inquiry is produced, to redoubled observation and verifica- tion of facts, and to renewed diligence in the search after truth, if haply they may find it ! Will the time ever come when Politicians will condescend to follow the example of savans ? It is cheering: to observe the wider love of Nature and the spread of scientific culture among all classes ; to note how the pursuit of Science is a bright spot in the lives of toilers at the desk, the loom, the anvil, and in the field. Our position fortunately makes us acquainted with diligent and capable students, low in the scale of worldly wealth and position, whose lives are sweetened by the new interest in common things which popular Science has created for them. Long may it continue to be so, and may the day soon come when men and women will be rescued from their lower natures by the calm dignity which Wisdom bestows on those who seek her ! As hitherto, our purpose is to keep pace with modern discovery and investigation, and to throw open our columns to the recording of new facts. Not less desirous are we of helping the young inquirer, and of putting him in a way to gain higher and sounder knowledge. Whilst endeavouring to keep clear of mere gossip, we do not wish to write above the heads of our large circle of readers by essays on abstruse subjects. Our aim is to spread and popularize Science, and to encourage a love of it. In conclusion, we heartily thank all who have helped us, and who have promised to continue their aid. At the same time, we implore the sympathies of those who are unaware of the burden of correspondence and work entailed in editing a journal like SciENCE- GOSSIP, and who may feel aggrieved at imagined slights. To each and all of those with whom we have been in cheerful literary and scientific companionship for the last year, we wish a " Merry Christmas and a Happy New Year !" LIST OF ILLUSTRATIONS. Arenicolites sparsus, tracks and burrows of, 181 Arenicolites didymus, 181 Taking Cast of, 109 Blow-fly, Teeth of the, 148, 149 Bottle-nosed Dolphin (Delphinus tursio), 8S Brambles about London, 204, 205, 206, 220 Brill, the, Prepared for Taking Cast of, 108 Bronze Celt (Bronze Age), Chesterfield, 109 Butterflies in the Neighbourhood of Dork- ing, 196, 197 Butterfly, Blenny, Prepared for Taking Cast of, 109 Cabbage Leaf, Malformation of, 201 Catocala sponsa(Dark Crimson Underwing Moth), 32 Chair in Great Yarmouth Church formed from Skull of Sperm Whale, 28 Collecting-box, a New, 269 Common Daisy, Median Prolification in the, 160 Common Dolphin (Delphinus delphis), 85 "Dero," a Fresh-water Annelid, Structure of, n Diatom, Sections of a, 104, 105 Drosera rotundifolia (Round-leaved Sun- dew), 4 Drosera anglica, Leaf of, 160 Drosera obovata, Leaf of, 160 Dublin, Geological Map of the Neigh- bourhood of, 180 Epping Forest, Fungi, &c. of, 249, 252, 253. 273 Equisetaceae (Horse-tails), 224 Flint Axe (Neolithic), Denmark, 100 Flint Dagger (Neolithic), Denmark, 100 Flint Implement from Brandon, 76 Flint Implement from Langey, 76 Flint Implement from Le Moustier, 77 Flounder, the, Prepared for Taking Cast of, 108 Flowers, adaptive appliances in, 156 Foraminifera of the Shetland Isles, 52, 53 Fossil Polyzoa, 248 Frog's Spawn, Modifications of, Changes, and Structure of, 53 Glass-eating Lichen, Cellular Structure of, 129 I Glyciphagus plumiger, 132 ; Gnat, Larva of the, 269 Grampus griseus (Rissot's Dolphin), 61 Grampus (Orca gladiator), the, 60 Graphiola phcenicis (Date Palm), Leaves of, 124 Hafted Implement (Neolithic), Schaffes, Switzerland, 100 Harvestman Spider, the, 80 Histioderma Hibernicum, 181, 182 Hylisinus fra.xini, 125 Kestrel, the (Falco tinnunculus), ioi Lama, the, 245 Lavatera arborea (Tree Mallow), 13 Linnet, Parasite of the, 233 Lophius piscatorius (Angler-fish), 153 Lucernaria auricula, 132 Lythrum Salicaria (Purple Loose-strife), 5 Machine for Mounting Slides, 87 Mercurialis annua (Annual Dog's Mer- cury), 12 Micrometer Measurements, Diagrams to Illustrate, 176 Miniature Microscopic Lamp, 232 nvmphon gracilis, 133 Oldhamia radiata, 181 Orobanche rapum (Broom-rape), 13 Parasite of a Cod, 34 Parasite of a Gurnard, 34 Parasite of a Ling, 34 Parietaria officinalis (Pellitory of the Wall), 12 Parnassia palustris (Grass of Parnassus), 4 Perisporiacege, 172, 173 Physeter macrocephalus (Sperm Whale), 8 Pilot Whale (Globicephalus melas), 85 Pinnularia, Diagrams Illustrating, 28 Piper Gurnard, Prepared for Taking Cast of, 109 Pisa tetraodon, 132 Pollack Whiting, the, Prepared for Taking Cast of, 109 Pseudorca crassidens, 61 Quartzite Implement from Creswell, 77 ROCKLING, THE, 109 Rotifer, Diagram Illustrating Birth of a, 200 SCHIZANTHUS PAPILIONACEUS, RACEME OF, 157 Section of Sand-dune, Lancashire, 29 Section of Sandstone Cliff, Suffolk (after Lyell), 29 Skull of Sperm Whale, 28 Sphinga, or Sphinx Ape, 225 Spiranthes autumnalis (Ladies' Tresses), 14 Tamarisk (Tamarix gallica), 14 "Tangle" Dredge, a, 221 Terraced Hills of the Bun en, as seen from North of Galway Bay, 229 Terraced Limestone Hills, Glen Colomb- kill, 228 Thornback, the, Prepared for Taking Cast of, 10S Thunbergia alata, 56 White Mites, 35 White-beaked Dolphin (Delphinus albiros- tris), 86 Ziphius Mesoplodon, Head of, 84 mm THE POTATO BEETLE. A LITTLE OIL ON THE WATERS. By W. V. ANDREWS. Corresponding Secretary of Long Island Entomologists' Society, U.S.A. PHE occasion of the ap- pearance of this little article is a paper which appeared in the Sep- tember number of Science-Gossip, writ- ten by Mr. E. C. Rye. No one will dispute the assertion that any- thing from the pen of that gentleman, particu- larly on entomology, is worthy of our serious atten- tion, and therefore it is that I regret to see him in the ranks of the alarmists, — already, as I should judge, too well recruited. I will assure your readers that to us, who have now for some years been familiar with D. decemlineata, the alarm seriously felt in the Old World lest this insect should visit your shores seems verging on the ridiculous. I do not, of course, mean that reasonable precautions should not be taken ; but the idea of stopping the transmission of dead specimens through the mails, as I know has been done, and thus pre- venting your people from making a personal acquaint- ance with the insect, appears to me to have a ten- dency to defeat the object in view. Certainly I should adv.se no Englishman to import Jive specimens, and I shjuld advise all farmers and gardeners to rid themselves of the presence of the beetle, as I should advise them to rid themselves of a crop of thistles. But if they imagine that its existence in their fields is likely seriously to injure ■their crops, then I assure them that they are very much mistaken. We have had this beetle on Long Island in immense numbers for some years, and I do not believe that any one has suffered any appreciable loss through its depredations. Farmers .all say this. No. 157. If any loss have been sustained, it has rather been through the i - emedy used than through the disease. And here let me earnestly advise my countrymen — for I am an Englishman — if the 'ieetle should make its appearance in the tight little island, to use no Paris green, or other poisons, with a view to its extermi- nation. There are two or three sufficient reasons why such remedies should not be used : — 1. Its application, in any form, is not without danger. If it be dangerous to wear green silks or to use green paper for walls, it surely must be injurious to apply this poison in any way by which its entrance into the human system is rendered possible, and probable. 2. The first shower of rain or gale of wind will remove every particle of the powder from the foliage of the potato, and either disseminate it through the atmosphere or imbed it in the soil, to be stirred up by the hoers or diggers. 3. Its use is entirely unnecessary. For small plots of land hand-picking by boys or girls is efficacious and without danger (for I do hope that your readers are not believers in the foolish stories told of the beetle being poisonous). For larger lots an ordinary butterfly bag-net, swept gently along the potato- tops, will capture more beetles in an hour than Paris green will kill in a week ; and, by the way, recollect that Paris green will kill other things besides potato beetles. An American farmer applied a pretty good dose of this poison to the potatoes in his garden " one dewy eve," and on the next morning found four dead milch-cows in his pasture. The cows had broken into the garden, and — increased the quantity of beef in that vicinity. Mi". Rye tells you that Paris green is a favourite remedy here, but he does not understand the American mode of doing things. Some State entomologist or other probably had ~ friend in the oil and colour B HARD WICKE 'S S CI EN CE-GO SSI P. business, and gave a friendly puff to Paris green. Then the oil-and-colourman advertises in some agricultural papers that he has the " never-failing exterminator " of potato-bugs — Paris green, and the editor of that journal at once strongly recommends it. You do not do things in that way in honest old England, but we do here. One word of advice. When your potatoes are four or five inches high, just occasionally turn up the leaves and examine the under side. If you find a bunch of orange-coloured eggs, nip them off. They probably were deposited by D. decemlineata. In a week or so look again. If you find that the foliage has been eaten from a plant pretty thoroughly, and should find a dirty brick-red animal, like that figured by Mr. Rye, on that plant, remove the animal the way I have advised. It is the beetle in its larval state ; and, recollect, that in that state it does most of its eating. But it is a poor traveller, and does not wander about unnecessarily. So, when you have found one from a batch of eggs, you may be sure the others are near at hand. One stroke from the net will capture most of them. Work atten- tively, now and again, and your potato crop will not suffer. Recollect, however, that other things besides D. decemlineata eat potato vines. Here we frequently suffer from the attacks of the Lyttas, or blister-beetles, which devour lots of potato foliage. Caution ! Mind, that all striped beetles found on potatoes are not Colorado potato beetles, but may be useful little fellows, whose larva; devour other larv;£ injurious to us. THE PRONUNCIATION OF SCIENTIFIC NAMES. IN regard to the pronunciation of Latin and Greek, perhaps the confusion of theory and practice is greater at the present time than it has ever been. The attempt to give c and g the hard (guttural) sounds in all such words is really only a part of a much wider scheme, which aims at restoring, as far as possible, the actual pronunciation of the ancients themselves. If these actual sounds can be recovered with any certainty, there is a possibility that some time Latin and Greek will be pronounced in a similar way by all who learn them, to whatever nation they belong. This is only what is done, as a matter of course, in the case of all other tongues, and no reason could be assigned for adopting a different practice in this instance. Prejudice stands in the way, but we need not despair of overcoming it. When I began to learn Latin, I was told that when I travelled in a foreign country, the language of which was unknown to me, I should be able to communicate my wants to any well-educated man by expressing them in Latin. In writing, of course, this could always be done, as, in fact, it is in the correspondence of many scientific men of the present day, especially those who belong to the Russian, Swedish, and other nations, whose languages are not generally known. But if two of these savans met, they would be as entirely unable to communicate orally with one another as if they knew no Latin at all — a result which I have no hesitation in calling ridiculous. But is there any possibility of recovering the actual sounds used by the Greeks and Romans at the time of their greatest literary prosperity? — the last clause being necessary, because their pronunciation changed with time, as ours has done. This is not the place to discuss the question, but the attempt has been made, and, I believe, with success ; not with absolute certainty, perhaps, but sufficient to remove, at any rate, most of the difficulties in the way of the adoption of a universal standard. It is no objection to this proposal to say that the people of each nation are in- capable of pronouncing certain sounds. This is not true, so far as relates to the languages with which we have practically to do. No Englishman, for instance, if properly instructed, can fail to learn the sound of the German ch, or the French u or eu in a short time, and practice will then make it easy. Moreover, the number of sounds peculiar to each nation is much exaggerated. The French, it is said, have a dislike to the sound of w. It would not be difficult, were this the place for doing so, to make out a long list of words which every Frenchman uses, in which this sound occurs, though not the letter. Conversely, the so-called peculiar vowel-sound of the word cueillir has its exact counterpart in English words. Although the time is not ripe for the adoption of the above-mentioned scheme in its entirety, there is one feature of it which will form a good step in ad- vance, and which may be at once accepted. This is the absolutely certain fact that c and g should invari- ably have a guttural sound. I am not speaking of the attempt to make this rule apply to English words derived from classical roots. That is quite a distinct subject, though it is not always kept distinct. Scien- tific names are Latin words, and should be so pro- nounced. The case of Geranium and the like will be no obstacle, for it is easy to pronounce the g hard when we speak of Geranium molle to a fellow-botanist, and soft when we speak to a lady-friend of the geraniums in her conservatory. This is no more than is done every day by people who can speak more than one language. They do not, for instance, give the same sound to ball in English, and ball in German, because they are spelled the same, and are names of the same object : and similarly with the French and English point. With reference to the pronunciation of words derived from names of persons and places, it will be only consistent to insist that they shall be sounded according to the rules of the language from which they are taken. In so far as they are neither classical words nor derived directly from classical sources, HARD WICKE } S S CIENCE- G O SSIP. there can be no reason for pronouncing them as such, even if it were not sometimes impossible to do so. I feel sure every botanist, meeting with one of these strange- looking words, would rather give it the proper sound than attempt to pronounce it according to English rules, with a result which, he is painfully conscious, is absurd. What is wanted, is a compendious and handy guide to the sound of the letters in the chief foreign tongues, such as French, German, Italian, Swedish, etc., and even Russian. It will be found that the sounds which do not exist in English are very few, and plain directions can be given for the attainment of most of those. Were such information commonly disseminated among scientific men (and perhaps Science-Gossip would be a good place for it to appear in), we should cease to hear such barbarisms as Hypniun Swartzii, with the w pro- nounced as in English, and Veronica Buxbaiimii, with the ait as in the English haul. It would be found, too, that the trouble required would not be great. Merely to learn how certain consonants and vowels are sounded in a language, is a very different thing from learning the language itself. W. B. Grove, B.A. A DOMINIE'S BOTANICAL HOLIDAY. WHAT a grand thing it is to have a holiday, and how refreshing to live almost out of doors for a whole month ; to wander hither and thither fancy free, by the brookside, or amid the tangled mazes of the wood, to ascend to the top of yonder hill, or to find out a path for ourselves through the glen — to climb the rock by the sea-side, or to lie on one's back on the thyme-covered bank above ! With some such thoughts did I awake one morning in the summer-time of last year. My holiday I intended this year to spend in the west of Scotland, and once on board the Marmion, with the "guid braid" Scotch tongue all around me, I fancied myself there at once. The weather was beautiful, and the good ship Marmion steamed away right merrily for the North. As we reached Flamborough Head we had a good view of the land, and all the way from this point the objects of interest were noted by tourist passengers. All this time I am on the sea, and as I cannot do much in a botanical way on board of a steamer, I live in a sort of poetical dream, in which the cha- racters in "Marmion" are all chasing each other through my brain. At length we arrive at our destination, and saying good-bye to the steamer, I pay a short visit to " Auld Reekie," my Alma Mater, and in a short time find myself en route for the west. On arriving at A , my botanical rambles at length begin, and I am soon in the full enjoyment of the pleasures I had looked forward to. Over most of the ground I had already made excursions as a boy. Then my pursuit savoured somewhat of orni- thology, now in manhood's day I was a humble student of the beauties of Flora's domain. Several of my rambles on this occasion I shall always remember with pleasure, and one of those in the foremost rank would be that visit to the Carrick country. Who does not admire the purple heather of our Scottish hills ? Now I was able to make a distinction between the commonest kind of all — Ling or Calluna vulgaris, and the different kinds o Erica which grow together on the hill-side, and a new pleasure seemed to be mixed with my boyish love for the "dark purple heather." The Blue-bell {Campanula rotundifolia) is to be found gracefully nodding its head to every little breeze, and seeming to bring up memories of "auld lang syne," and, although I can remember it as one of the most delightfully common of little flowers of my boyhood, I can also remember the words of Ellen, the " Lady of the Lake," that— " It drinks heaven's dew as blithe as rose That in the king's own garden grows." A wealth of hillside flowers is to be found around me, such as the pretty little Eyebright and the Creeping Cinquefoil, with its relative the common Tormentil. Moving on a little on one side I come across two of Our Lady's flowers — the Lady's Mantle (Alchemilla vulgaris), and the Galium verum, or Lady's Bedstraw, or Beadstraw. Getting into a part where the ground is somewhat moist and boggy, the lovely Parnassia palustris soon rivets attention. What a splendid view from the top'of the hill ! Right away to the Irish coast almost, on one side, and around me I can survey the whole extent of country where " Bruce he shook his Carrick spear." Another very enjoyable ramble was the one paid to Loch Doon, the birth-place of the " bonnie Doon." This was accomplished by going by rail to Dal- mellington and walking to the loch. The walk by the side of the Doon is a magnificent one, and as the glen gets narrower and the rocks higher I am fairly enraptured with nature's works. At length I emerge from the glen with pleasant thoughts of the beauty of the ferns and mosses which I have seen peeping out from the crevices of the rocks and adorning every spot of vantage. Keeping company with the Crypto- gamia I had also observed quantities of that pretty saxifrage the London Pride, or " None-so-pretty,'" and the Crow Garlic, with its beautiful star-like blossoms, and its leaves somewhat resembling those of the Lily of the Valley. Having got safely through the glen, I find myself on the borders of a wild high- land lake, studded here and there with islets. Being desirous to change the walk, I reach Dalmellington by a different route, and as I have to pass through many acres of bog-land, my old friend the Parnassia, B 2 HARD WICKE 'S S C1ENCE • G O SSIP. fialnstris is found in great plenty. The Ericas also look well, and I am constrained to gather some of them. I also find the Milkwort, or Rogation flower, in great plenty and very various in its hues. Dalmellington is at length reached after a long ramble, and I am glad of a little rest after my labours. The flowers on the Ayrshire coast are very numerous, and an excursion for the purpose may be made with advantage by any one who may be Fig. i. Grass of Parnassus {Pamassia jial/ts/r/s). interested in wild flowers. The Sea Convolvulus and the Rest Harrow, with the Scurvy Grass and the Eryngo Maritimum, may be found here in great plenty, besides hundreds of other well-known plants. A great many varieties of the most beautiful of the Alga: may be gathered on the sea-shore after a storm. After spending about a fortnight on the mainland I determine to make the Isle of Arran, in the Firth of Clyde, the scene of my operations for the remaining part of the time. Crossing one morning from Ardrossan in a little steamer, I arrive at Brodick, and at once start for a walk across the island. Having got right to the other side I proceed to arrange about a lodging, and as I am out of the way of all bustle I make up my mind to enjoy myself. I could soon see that 1 was looked at, as I thought, with some degree of patronage by the natives. In order to encourage me several hoary islanders used to iifc^ Fig. 2. Round-leaved Sundew {Droscra rotund if olio). appear with immense bundles of weeds round the cottage where I lodged, about eventide. As the evenings were fine I used to take a chair out uf doors and hold a sort of reception. It was to me very amusing to observe the specious pretexts by which these "ancient mariners" used to lure one to talk when they found that I could tell them about London ; and how desirous they were to know all about it. Almost every evening I might HARDWICKE'S SCIENCE-GOSSIP. 5 expect one or more of my friends coming to visit me, and to hear something more about the "big ceety." In the daytime I enjoyed my rambles exceedingly, and I came across many specimens here that I had not seen for some time. The lovely Alpine Lady's Mantle repaid a climb up one of the hills, and in the boglands below I found the Drosera rotundifolia, and its usual companion the longifolia. Another carnivorous little plant which is often a near neighbour, one of the Butterworts, Fig. 3. Purple Loosestrife (Lythrum Salkaria). I also found in part of the bog the same neighbourhood. One I found quite covered with the Cotton Grass, and close by a great deal of the Marsh Cinquefoil, which, although it has done flowering, I am able to make out by its strawberry- looking seeds. Another part of the bog I find covered for a great distance by the Horsetail (Equisetitm), and in the running stream by the side, its representative the Hippunis. The Bog Bean is also present with its tripartite leaf, but it is now destitute of flowers, and in close proximity is the Marsh Valerian. Before leaving the moist ground I feel called upon t o admire the beauty of a large patch of the Purple Loosestrife, which has a grand effect. It was after one of my excursions, and whilst I was holding my usual evening " confab " with my friends, that one of them confided to me that ' ' a wee drap o' Luckie Findlay's whusky wad be a guid thing to carry wi' ane oot on tha hills." I told him that it might or it might not, but as I did not want it for the purpose of quenching thirst it would be a useless encumbrance. I saw that Donald looked quite astonished at my te merity to venture to speak slightingly of what was to him, no doubt, a sove- reign remedy for everything whatever. It was only a day or two after this that I took my farewell ramble in Arran. It was not the best of days, and the weather seemed to be breaking up. As my holidays were now drawing to a close, I was not so much concerned on the subject. In this, my last excursion, I came upon the Osmunda regalis in a boggy piece of ground. It was growing up in several clumps, and looked very well indeed. After this I also came across the Sweet Gale, or Bog Myrtle. It was about here in great profusion, and smelt very strongly of the myrtle-scent belonging to it. A little farther on amongst the Sheep's-bit Scations and the heather, both purple and white, I found for the first time the pretty Bog, or Lan- cashire, Asphodel. Another plant which I found for the first time was the pretty White Sedum, down on the rocks by the beach. Though I have often gathered these two plants since, this was my first introduction to them, and I shall always re- member them in connection with the " Misty Isle of Arran." J. Mills Higgins. TAME BEARS IN SWEDEN. By John Wager. IT is well known that the Bear, by a course ot severe discipline, can be taught to carry a long pole in his paws or a pert monkey upon his back, to dance to the music of pipe and drum, and to perform tricks which the solemn gravity of his demeanour, his clumsy motions, and shaggy hide, render the more amusingly grotesque. He may also be seen, in the den of a 'menagerie, to leap through a comparatively small ring encircled with flame, associated, during the performance only, with leopards and a hyaena ; though the uncouthness and reluctance with which he accomplishes the feat, contrasted with the graceful and ready spring of the leopards, is enough to make the hyaena laugh ; while, of all the performers, he has evidently the most intractable temper, and is least trusted by the spangled damsel who presides with the whip. HARD WICKE 'S S CIENCE - G OSSIP. Yet, when young, the Bear is not altogether devoid of amiable qualities, as the following narrative will prove. The account was communicated to the present writer in 1867 by a Swedish acquaintance residing at Mora, in Dalecarlia, the bear being then living, and the property of a gentleman at Siknas, in Venjan, an adjoining parish, having been taken when about three weeks old from the adjacent forest in February, 1865. Being fed with warm milk, young Bruin throve satisfactorily, and when large enough to enjoy liberty he usually sojourned in the yard with the bear-dog " Jeppe," playing and springing about his companion like a cat. He was also much attached to his master, delighting to accompany him not only to the forest, where he often clambered up trees, but also into the house, where removing chairs and tables from one room into another appeared to be his favourite oc- cupation. Strangers who visited Siknas always received his attentions ; but as these were somewhat brusque, and expressed in a surly tone, they tended rather to repel than attract. To Swedish punch (a luscious compound of arrack and sugar) he was extremely partial, and partook of it, whenever invited, out of a glass, like a well-bred gentleman, but afterwards showing his loutish and lumpish nature in a drunken fit, concluding with heavy sleep and loud snores. One day, while Bruin was yet of tender years, a kitten came into the yard and immediately drew his surprised attention upon herself; but young Puss, not admiring his looks, first cast upon him an angry glance, and then sprang up and fixed her claws in his head, exciting such alarm that he trotted off in a nervous perspiration, and ensconced himself in an outhouse. Subsequently he always fled at the sight of this cat, though she was the only one of which he showed fear. Bruin took a daily bath in the river, which flows within a stone-throw of the house ; swimming across and back again. He then trotted to an ice-cellar, the roof of which was easily accessible and covered with deal boards, one of which projected considerably beyond the rest ; towards the end of this he used to ci"eep warily, to enjoy the swinging motion that resulted. It was a mode of recreation of which he frequently availed himself. Whenever he could intrude into the kitchen he bemeaned himself like an officious and meddlesome husband, disordering affairs, greatly to the vexation of the domestics, to whose castigations with a stout knob stick he payed little regard. One day he laid hold of a coffee-pan that stood on the hearth, and was conveying it in his paws to the yard, when the hot contents, overflowing on his bosom, provoked him to cast it on the ground and flatten it with a stroke of his paw. He would also, when opportunity occurred, smuggle himself into the larder (a detached building), looking round first to see that he was not observed, then bring out some article, especially a cheese, which he found convenient to carry ; but on one occasion he made free with a tub of clouted milk and cream, handling it, however, so awkwardly that the ropy tenacious contents streamed down the front of his erected corpus, and, as in the case of the coffee-pan, brought vengeance on the tub. After fruitless en- deavours, with tongue and claws, to clear the viscous mass from his best fur coat, he betook himself to the river, and then solaced himself with a swing. This partiality for swinging or rocking rendered him an undesirable companion in a boat ; yet he constantly followed his owner to the river-side, and if not admitted as a passenger, would swim after the boat, grunting like a hog. During one river excur- sion which he had been allowed to share he enjoyed as usual his rocking, till the boat, gliding down the river, entered a stormy rapid, when he became quite agitated with fear, trembling in every limb and hold- ing on each side of the boat so long as it remained in the weltering force. When indulged with a ride by land, he would sometimes leap on the shafts of the. vehicle, and placing a hind leg on each, rest his fore paws on the horse's back. As he grew older it was found necessary to impose some check upon his movements, and for this purpose a chain, with a log at the end of it, was attached to a collar round his neck. Such badge of servitude and interference with the liberty of a free-born bear was- not to be borne. At first he tried to strike off the log with his paws ; then he dragged it to the river, but was vastly irritated to find that after every attempt to sink it, the audacious log came to the surface again. Finally he dug a hole, put the log into it, and re- placed the earth, stamping or pressing it down ; then apparently satisfied with his work he attempted to move off, but found himself in a worse fix than before; however, after sundry curvets and angry jerks the chain broke and he regained his freedom, leaving his encumbrance in the grave. In concluding his ursine anecdotes my Swedish friend remarked : ' ' These are but a few of Bruin's traits and droll tricks, which must be seen to be fully enjoyed. At present he lies quietly in his winter lair, but imagine his humour when he leaves it in spring ; he is then no agreeable companion, especially for the kitchen-maids, towards whom, and the fair sex in general, he shows the greatest disregard." Poor Bruin ! he must indeed have got up on the wrong side of the bed, for he became so unbearably troublesome and subject to such angry moods, that, as I afterwards learned, at the early age of about three years he was doomed to death, and executed accordingly. Another young bear, captured in the winter of 1869, was kept for about two years at Eksharad, in Wermland ; but as it grew older it became danger- ously ferocious, and, consequently, was also shot. A tame bear, kept at Sno-an, had accidentally one Saturday evening got locked up in the smithy, and not liking to remain in a workshop on a Sunday, HARDWICKE'S SCIENCE -G0SS1 P. attempted to escape through an opening in the roof. But to reach this Bruin had to clamber upon a lever, which, under the pressure of his weight, opened the sluice-gate, and, turning the water upon the wheel, set the great hammer to work. Evidently annoyed by its persistent motion and noise, he appears to have grasped the hammer in his paws with intent to stop it; but the contest proved beyond his strength, for the neighbours, hearing loud roars, hastened to the smithy and found him lying upon the anvil, having received a death-blow before their arrival. THE SEALS AND WHALES OF THE BRITISH SEAS. Part VI. By Thomas Southwell, F.Z.S., &c. WE now come to the second sub- order into which the Cetacea are divided, namely, the Odontoceti, or Toothed Whales. In this section, baleen is never present, but well-developed teeth are found in one or both jaws of the adult ; in some species they are very numerous ; sometimes, though rarely, deciduous. The blow-hole is single, and the skull generally asymmetrical, or not precisely alike on both sides of the medial line. Professor Flower divides the Odontoceti into three families, one of which, the Blatunistidm, as already said, is found only in India and South America ; the other two, Physe- terids and Delphinidce, are represented in our Fauna by about fifteen species. Of the Physeteridcc, four genera are represented in the British Fauna by five species ; namely, one Physcter, the Sperm Whale ; two Hypcroodons, the common Beaked Whale, and a very rare species called the Broad-fronted Beaked Whale ; one Ziphius, Cuvier's Whale ; and one Mesoplodou, Sowerby's Whale. By far the most interesting species is the Sperm Whale, Physcter viacrocephalus (Linnaeus), which rivals the Right-whale in commercial importance and in the value of its products. This species has a very wide geographical range, having been found in almost every sea between lat. 60° north and 60° south. The attempt has been made, I think unsuccessfully, to show that the Sperm Whale of the southern hemi- sphere is distinct from that of the northern ; there seems, however, no reason to doubt at present, al- though, of course, it may eventually be found other- wise, that the same species of Sperm Whale ranges • over the whole of this vast tract of ocean. North of about 40 it appears to be only a straggler, and although the Arctic seas are almost always stated by -authors to be its head-quarters, no well-authenticated instance of its occurrence farther north than Scotland is on record, and Lilljeborg excludes it from his -account of the Scandinavian cetacea. Of its occur- rence on the British coast there are numerous in- stances; in all cases, however, they are believed by Andrew Murray to have been stragglers, " which have rounded Cape Horn (they have never been known to double the Cape of Good Hope) or un- promising colonies, for they are becoming scarcer and scarcer in more than their due proportion."* Of the numerous occurrences on the coast of the British isles I shall confine myself to a few early records. In the church of St. Nicholas, at Great Yarmouth, is the basal portion of a skull of this animal, which has been converted into a chair : it formerly stood outside the church, and of course, as it was an object of wonder, it was relegated to the powers of dark- ness, and christened (?) the "Devil's Seat"; it has, however, now been admitted into mother church, and stands beside the north-west door under the clock. Mr. C. J. Palmer tells me that in the church- wardens' accounts for 1606 there is a charge of 8s. for painting this chair, which clearly proves its an- tiquity. Sir Hamon L'Estrange, in a letter to Sir Thomas Browne (Wilkins's edit., 1852, editor's pre- face to " Pseudodoxia," vol. i. p. lxxxi.), says that in June, 1626, a whale, afterwards referred to by Sir T. Browne as a sperm whale (vol. iii. p. 324), was cast upon his shore or sea-liberty, " sometyme parcel of the possessions of the Abbey of Ramsey, &c." The same author, in his account of the " Fishes found in Norfolk and on the Coast," says, "A Sper- maceti whale of 62 feet long [came on shore] near Wells, another of the same kind twenty years before at Hunstanton [the one referred to by Sir H. L'Es- trange] ; and not far off, eight or nine came ashore, and two had young ones after they were forsaken by the water." The whale mentioned by Sir H. L'Estrange came on shore in 1626 : twenty years after would give 1646 as the date of the Wells specimen ; and in December of that year, according to Booth's " History of Norfolk," published in 178 1 (vol. ix. p. 33), "A great whale was cast on the shore here [at Holme-next-the-Sea], the wind blow- ing strongly at the north-west, 57 feet long, the breadth of the nose-end eight feet, from nose-end to the eye 154 feet ; the eyes about the same bigness as those of an ox, the lower chap closed and shut about four feet short of the upper ; this lower chap narrow towards the end, and therein were 46 teeth like the tusks of an elephant ; the upper one had no teeth, but sockets of bones to receive the teeth : two small fins only, one on each side, and a short small fin on the back ; it was a male . . . . ; the breadth of the tail, from one outward tip to the other, was 13! feet. The profit made of it was £2.1']. 6s. 7d., and the charge in cutting it up and managing it came to ;£ioo or more." It seems probable that a "school" got bewildered in the shallow waters of the Wash, and that the individual of which Booth * "Geographical Distribution of Mammalia." By Andrew Murray, 1866, p. 211. 8 HARD WICKE'S SCIENCE-GOSSIP. gives such an excellent description, formed one of the same party as the eight or nine mentioned by Sir T. Browne. In May, 1652, Mr. Arthur Bacon writes to Sir T. Browne about the sperm whale cast on shore at Yarmouth, but the actual date of the occurrence is not given. This is the last record of this species being found on the Norfolk coast, with which I am acquainted : it has, however, occurred many times since, singly or in small parties, on other parts of the coast ; the last instance, I believe, being in July, 1871, when one was stranded on the shore of the Isle of Skye. Of the osteology of the Sperm Whale, Professor Flower has given an exhaustive account in a paper published in the " Transactions very remarkable appearance, the truncated form of the snout looking as though it were cut off at right- angles to the body : at the upper angle is situated the single blow-hole. The juncture of the head with the body is the thickest portion, and the body decreases little in size till the "hump," which is situated in the place of the dorsal fin, is reached ; from this point it rapidly diminishes to the tail. The flukes of the tail are from twelve to fourteen feet in breadth, and the two flippers each about six feet long. The under jaw is pointed, and about two feet shorter than the upper ; it is furnished with about twenty-five large conical teeth on each side ; but the number is not constant, nor is it always the same on each side. In Fig. 4. Sperm Whale (Physeter macrocephaltis, Linn.)- of the Zoological Society," vol. vi., and of its habits a very interesting account is given by Thomas Beals, who, in the capacity of surgeon on board ships employed in the South Sea fishery, had unusual opportunities of observing this remarkable animal. He published a book entitled " The Natural History of the Sperm Whale," to which I am largely indebted for what I shall have to say about this species. The colour of the Sperm Whale is black above and grey beneath, the colours gradually shading into each other. The full-grown male is about sixty feet long ; the females are much smaller and more slender than the males. The head, which constitutes more than one-third of the whole of the animal, presents a the upper jaw are no visible teeth, but those of the lower jaw shut into corresponding depressions in the upper. The tongue is small, and, like the lining of the mouth, of a white colour. The upper part of the head, called the "case," contains the "spermaceti," which upon the death of the animal granulates into a yellowish substance. Beals says that a large whale not unfrequently contains a ton of spermaceti. Be- neath the "case" is situated the "junk," which consists of a dense cellular mass, containing oil and spermaceti. The blubber is about fourteen inches thick on the breast, and in most other parts of the body from eight to eleven inches. By the whalers this covering is called the " blanket." With regard HARDWI CKE 'S S CIENCE - G O SSI P. to the apparently ungainly head of the Sperm Whale, Beals remarks as follows : — " One of the peculiarities of the Sperm Whale, which strikes at first sight every beholder, is the apparently disproportionate and un- wieldy bulk of the head ; but this peculiarity, instead of being, as might be supposed, an impediment to the freedom of the animal's motion in its native element, is, in fact, on the contrary, in some respects, very conducive to its lightness and agility, if such a term can with propriety be applied to such an enormous creature ; for a great part of the bulk of the head is made up of a thin membranous case, containing, during life, a thin oil, of much less specific gravity than water, below which is again the junk, which, although heavier than the spermaceti, is still lighter than the element in which the whale moves ; conse- quently the head, taken as a whole, is lighter specifi- cally than any other part of the body, and will always have a tendency to rise at least so far above the sur- face as to elevate the nostril or ' blow-hole ' suffi- ciently for all purposes of respiration ; and more than this, a very slight effort on the part of the fish would only be necessary to raise the whole of the anterior flat surface of the nose out of the water. In case the animal should wish to increase his speed to the ut- most, the narrow inferior surface, which has been before stated to bear some resemblance to the cut- water of a ship, and which would, in fact, answer the same purpose to the whale, would be the only part exposed to the pressure of the water in front, enabling him thus to pass with the greatest celerity and ease through the boundless track of his wide domain " (p. 28). When swimming at ease, the Sperm Whale keeps just below the surface of the water, and goes at about three or four miles an hour ; but on an emergency it is able to attain a speed of ten or twelve miles an hour : it then progresses by means of powerful lateral strokes of its tail, and alter- nately rises and sinks at each stroke. In progress- ing in this manner, the blunt anterior surface of the head never presents itself directly to the water ; the animal's body being in an oblique position, it is only the angle formed by the inferior surface which first presents itself, and this, which Beals likens to the " cutwater " of a ship, offers the least possible amount of resistance. When undisturbed, the Sperm Whale rises to the surface to breathe about once every hour. Beals says the regularity with which every action connected with its breathing is performed is remark- able ; the time occupied differs slightly in each indi- vidual, but each one is minutely regular in the per- formance of every action connected with respiration, so that the whalers know how long it will remain beneath the surface before reappearing to renew its supply of air. A full-grown ' ' bull, " he says, remains at the surface ten or eleven minutes, during which he makes sixty or seventy expirations ; after which he disappears, to return again to the surface in one hour and ten minutes. The blowing is not accompanied by any sound, and notwithstanding the wonderful accounts of its roarings and bellowings, the Sperm Whale may be said to be an absolutely silent animal. The females and young males are gregarious, but are found in separate herds or "schools," as they are called. A " school " will sometimes consist of five or six hundred individuals. The herds of females are always accompanied by from one to three large "bulls"; but the full-grown males are said to be generally solitary in their habits, except on certain occasions, when it is supposed they are migrating from one feeding-place to another. The majority of those which occur on our coast are these solitary males ; when they visit us in herds, as mentioned by Sir Thomas Browne, they are all probably females or young males. The "bulls" are veiy fierce and jealous, and fight fiercely. The females show great attachment to each other and to their young, so much so that, one being wounded, the others of the herd remain and fall a comparatively easy prey. The young males, on the other hand, are very wary and difficult of approach, and should one be attacked, the others immediately take the alarm and retreat . The female produces one young one, rarely two, at a time, and breeds at all seasons of the year. Their senses of sight and hearing are very acute, and after being once unsuccessfully attacked, they are very difficult and dangerous to approach. The food of the Sperm Whale consists almost en- tirely of Cephalopode Mollnsks (cuttle-fish), although at times, when feeding near the shore, it has been known to take fish as large as salmon. It is, how- ever, essentially a deep-water species, but how it con- trives to capture such active prey as fish seems difficult to conceive. Beals is, however, of opinion that the Whale sinks to a proper depth in the sea, where re- maining as quiet as possible, and opening wide its mouth, the prey are attracted by the glistening white colour of its lining membrane, curiosity leading them to destruction ; for no sooner have a sufficient number entered his mouth than the Whale, rapidly closing his under jaw, they are made prisoners and swallowed. {To be continued.") THE HISTORY OF SALAD PLANTS. By H. G. Glasspoole. CRESSES. CRESS is a general name of a number of plants, mostly, if not all, belonging to the Cntciferce, and possessing, in common with the plants of the same order, pungent and aromatic qualities. The ancients, we are told, ate cresses with their salads to counter- act the cold nature of lettuces and other herbs. The garden cress, Lepidinm sativum, appears to have been known to Theophrastus (see article in Rees's "Encyclopaedia"), but the tribe of Nasturtium, to which the Water-cress belongs, was, no doubt, IO HA RD WICKE 'S S CIENCE - G SSIP. most common in use. The Greeks thought that the warm and stimulating qualities of these plants put life and energy into persons with a sluggish tempera- ment, and also brightened the understanding of those who partook of them : this circumstance gave rise to the Greek proverb, " Eat cress and learn more wit." Xenophon recommended the Persians to feed their children with cresses, which he said would make them grow tall, and be of more active habits. Pliny dwells much on the medicinal virtues of these plants, and recommends them to be eaten with vinegar as a remedy for those minds that were deranged. The garden cress is said to have been introduced into this country about the middle of the sixteenth century. Gerard mentions having received the seed of the curled cress, which is a variety, from his loving friend John Robins, of Paris. Thomas Cogan, in his "Haven of Health," tells us "that the often eating of this herb in salettes doth give sharpnesse and readinesse to wit." The native country of this plant was unknown until Dr. Sibthorp discovered it in Greece. No British plant is in such popular request for salad as the Water-cress, Nasturtium officinale, the young leaves of which are supposed, like those of the Scurvy-grass {Cochlearia officinalis), to purify the blood, and therefore largely partaken of in the spring. Our old friend Gerard recommends young ladies to eat them as a restorative to the natural bloom of their faded cheeks. A decoction of its juice with that of Scurvy-grass and Seville oranges used to be given to children as a medicinal drink in the spring in days gone by. In Europe the water- cress appears to have been first cultivated at Erfurth, about the middle of the sixteenth century, but it was not until 180S that it became an object of cultivation in England. About that period a Mr. Bradbery began to grow them for the London markets in the pretty valley called Springhead, Northfleet, Kent, with great success. In 1820 he removed to West Hyde, near Rickmansworth, where he had no less than five acres under water-cress cultivation. It is now ex- tensively grown in the northern and eastern suburbs of the metropolis, and also at Cookham, Farringdon, and other places on the Great Western Railway, which line brings no less than a ton a week of this wholesome breakfast salad to London. Many hundred bunches are sold every morning in Covent Garden, but the largest share goes to Farringdon Market. The en- tire supply to the various Metropolitan markets cannot be less than from three to four tons per week (see Wynter's "Curiosities of Civilization"). The sale of this plant forms an important though humble branch of domestic commerce in our towns and cities. " Fine fresh Water-cresses ! " is the first coster cry heard in a morning in the streets of London. Water-cress contains chloride of potassium and sulphur in considerable quantities, and iodine occa- sionally. The botanical name of the garden-cress, Lepidium, is derived from lepis, a scale, from the form of the seed-pouches ; that of Nasturtium, from nasus, nose, tortus, torment, from the effects most of this genera have upon the muscles of the nose,— a name given to it by Pliny. In some counties these plants used to be called ' ' Nose-smart " for the same reason. The word " cress," perhaps, may be derived from cresco, being a quick grower. In the last edition of the " English Botany " we are told that the word "cress" is found in various forms in all Teutonic languages. Some have derived it from the cross form of the flowers. Chaucer employs the Saxon form of the word Kers, to signify anything worthless : — " Of paramours ne raught he not a Kers ; " from which, perhaps, is derived the phrase of not caring a curse for anything. THE ANNELID "DERO." By R. Garner, F.L.S., &c. '"pHE two little fresh- water Annelids, portions of J. which are figured at a, b, c, are very dis- tinct from their allies, the Naids. of which, however, several species are often found with them ; Nais proboscidea, for instance. Dero is the generic name appropriated to the present annelids. Though hardy, they seem to require a warm temperature, and those here described inhabit the slimy mud of a pool, into which hot water is constantly pouring from an engine. A dark green Oscillatoria also grows in the same mud, and thrives in a higher temperature than either the annelid or the hand can endure. The peculiarity of Dero, and one which makes it a pretty object for the microscopist, is the expanded membrane or respiratory disk, situated at the posterior part of the body, having projections or processes upon it, and the whole strongly ciliated, thus pre- senting some resemblance to the corona of a Bryozoon, though the ciliated processes are fewer. This part, the undoubted respiratory organ, it is the habit of the little animal to protrude out of the mud in which it lives, and when the disk is expanded, the processes fairly extended, and the cilia in strong action, few objects are more striking. There is a difference between a and b and c, the former having a pair of antenna-like processes, which are not retractile. Another interesting point, and one which from the transparency of the animal and the bright-red colour of the blood, is not difficult to investigate, is the circulation. Of this, investigation has already been made,* and all that we give here is solely what we have ourselves noticed. An abdominal vein running from the head, /, to the respiratory disk at the opposite extremity, a, receives the blood from the * M. E. Perrier, " Comptes Rendus," 1870, an extract being given in Ann. and Mag. of Nat. Hist., fourth sec, vol. 6. HARDWICKE'S SCIENCE-GOSSIP. ii head, and from what may be termed a vascular rete mirabile enveloping the stomach and intestine, and is divided behind, g, and distributed to the branchial processes. From these, vessels again converge into a dorsal artery, following the undulations of the alimentary canal, and conspicuous from an intrinsic portions, two as above and a third behind, and the somites in the last portion have evidently been most recently formed. A double abdominal nervous cord is plain enough all along below the longitudinal vein ; the brain is less definitely seen ; there are also two minute bodies I Fig. s. Structure of Dero- -a freshwater Annelid, a, b, c, posterior extremity; d, head ; e, seta; ;/, g, vessels of the head and branchia?. metility which the vein has not. The course of the dorsal vessel is somewhat the same as the ventral. When it lies above the middle part of the alimentary canal it forms the beautiful network already men- tioned, and is, besides, connected in each somite or section of the body with large contractile loops, apparently distributing the blood to the viscera and parietes of the body, but, according to Perrier, not immediately connecting the two vessels. The little worm is well supplied with abdominal tufts of sigma- shaped hooks for crawling, and also with lateral or dorsal seta? for swimming, the former are bifid at their extremes, e. The mouth, d and f, is furnished with a bulbous tongue, which can be protruded a little in feeding ; both here and behind the alimentary canal is ciliated ; there is some appearance of a stomach at about the seventh and eighth somite of the body, and here is the liver incorporated with the canal, and also in the same region the ovaries, &c. ; the intestine is dilated in each division of the body, and connected by bands with its parietes. We have no sufficiently matured observations to offer as to the development of the ova in the Dero. Perrier describes its fissiparous mode of increase, but the following account differs somewhat from him. Sometimes a long Dero, say of fifty joints, very evidently divides into two, a respiratory disk for the anterior secondary worm, and a head for the posterior one being formed at the place of disjunction ; here the anterior portion, containing the ovaries, probably becomes the germ-mother, and perhaps winter-nurse. In other cases the individual Dero presents three at the sides of the brain, probably acoustic, a few darker coloured spots more forward, and apparently lateral oral ganglia. The animal is sensitive to a very slight concussion of the vessel in which it lives. PLANT-HUNTING AT BARMOUTH. By J. Percival. HAVING read with great pleasure the interest- ing notes of your correspondent Horace Pearce, F.L.S., of the flora of the neighbour- hood of Cader Idris, I wish to add, by way of supplement, a few of the plants that came under my observation during the summer of 1876, for I find that he has omitted a great portion of the rarer species. Walking along the road in the direction of Llanaber may be seen Parietaria officinalis, Eckium vidgare, Clinopodium vidgare, Origanum vidgare, Eaonymus Europazts, and Aspleninm lanceolatum. This latter plant may be found for a mile on old walls and rocks, and in far greater abundance than its near ally, Aspleninm Adianlum-nigrum. It may also be found on walls overlooking Barmouth, and also for two miles on the Dolgelly road from Barmouth; turning into the harbour, a little short of a mile from Barmouth, it may be seen there very fine and abun- dant. A little further, on rocks facing the sea, may be gathered Rubia peregrina, or the common Mad- der ; growing also with it is Inula conyza, or the " Ploughman's Spikenard " ; another mile further on brings you to Carex extensa and Tamarix Gallica ; and also Spircca salicifolia : both the latter have, no doubt, been planted, but probably they are as wild 12 HARD WICKE 'S S CI EN CE- G OS SIP. there as elsewhere in Britain. Half a mile further on, until coming to a large stream, going up the hill side, may be found Carex binervis, C. laevigata, and C. fulva, the latter in the greatest plenty. Gnaphaiium dioicum, Scutellaria minor, almost in all swampy places, along with Drostra rotundifolia. Up this valley, t picked up of the Drosera an immense number of sports, varying from one to six and seven stems from the same root ; others branched into several divisions at the top of the stem : I picked up about twenty of them, and scarcely two alike. Crossing over the it also grows on the railway banks, both near Bar- mouth and at Friog. Along the coast may be gathered Crithmum maritimum ; amongst loose stones in several places, and also very fine, two feet in height, on rocks exactly behind the pay-house. In crossing the bridge, Polygonum Raii, Sclerochloa loliacea and rigida. On the railway banks, about 400 yards from the station, grows Mentha rotundifolia , and in grassy flats, running parallel with the railway at this place, there are large quantities of Juncus acutus and maritiimis. On Sept. 5th, 1 876, I saw hundreds of Pellitory of the Wall [Parietaria officinalis) hill from this point (say a mile up the valley) in the direction of Barmouth, my friend Mr. Roger, gathered a plant of Onobrychis saliva. On the hill- side overlooking Barmouth may be found Geranium sanguineum, Dianthus delloides, and Orobanche major ; and on an old wall nearly opposite the Corsy- geddol Hotel may be gathered Orobanche Heditue ; whilst on the rocks in the direction of Llanabers near the toll-gate, may be found Veronica hybrida. Proceeding along the high road for a mile may be found, in the greatest abundance, Lathy rus sylvestris ; Fig. 7. Annual Dog's Mercury [Mercurialis annua). Spirant hus autumnalis growing in the same flat with Spergida nodosa and a white-flowered variety of Erythnea Centaurium. Eiythma latifolia I have seen growing at Pensarn along with Juncus acutus and maritimus. Convolvulus Soldanclla grows amongst the sand-hills near Barmouth, and in several places may be found Mercurialis annua, Koniga maritima abundant (probably an escape). Malva sylvestris and rotundifolia are both common plants. Lavatera arborea growing in several places on the coast ; likewise may be seen Sinapis nigra and Hordeum muriuum. HA R D WICKE'S S CIENCE- G O SSI P. 13 Crossing over the estuary, and getting on to the bog at Barmouth Junction, may be found Phragmites communis, varying in height from 18 inches to more than six feet. I have a specimen not 20 inches high, with roots and four perfect panicles ; growing along with it is CEuant/ie erocata, Scirpus maritimus, and Typha latifolia. The last-mentioned plants grow in the sluice by the railway-side, until one gets beyond Penman Pool Station from Barmouth. At the Bar- mouth side of the estuary, on the bog may also be Fig. 8. Tree Mallow {Lavatcra. arborea). found Radiola millegrana, Osmunda regalis, Carex distans, C. Jlava, var. lepidocarpa, Drosera rotundifolia and intermedia. Going on to Arthog Station, amongst the salt marshes, may be found Statice Limotiium and S. rariflora, also Sueda mariiima and Saticornia in the greatest abundance. CEnanthe Lachenalii and Apium gravelens both grow near Penman Pool Sta- tion, and, retracing my steps to the rocks, near Friog, growing in inaccessible situations, may be seen Asplaiium marinum ; and following the coast to the next village, Llangrwyen, near the station, I have found Mentha viridis, M. piperata, and M. gentilis, and also Tanacetum vulgare. By the road, in woods, are large quantities of Hyperi- cum androscemum and Orobanche major. In woods, at or near Barmouth Junction, at Arthog Falls, Tor- rent Walk, and several other places, I have seen Hymenophyllum Wilsoni in the greatest abundance. At the margin of the lakes, on the ascent to Cader Idris, from the Arthog side, I have seen Hypericum Fig. 9. Broom-rape (O rolanclit rapuni). elodes. I have also seen it in swampy ground near Barmouth. I have seen L. selaginoides in several places near small rills near Barmouth ; and Aspletiium Ruta-miiraria grows very fine on an old wall leading from Dolgelly to Penman Pool ; but out of reach, except by a ladder. Amongst mosses, the rarer species I have observed are Entosthodon Templetom and E. ericetorum, Bartramia rigida, Bryum alpwum and B. eloiigatnm, Hedwigidinm imberbe, Zygodon viridissimus and Z. conidens, Campy/opus longipilus 14 HARDWICKE'S SCIENCE-GOSSIP. Fig. 10. Tamarisk (Tamarix gallica). C. densus and C. paradoxus, Rhabdoweissa Jugax, &c. Asplenium viridc is found in ascending Cader, and MICROSCOPY, An easily-made Cell. — The " American Journal ol Microscopy " gives the following excellent recipe for constructing cells: — "A cell which we have found very durable, easily and quickly made, and very neat, is constructed as follows : Having pro- cured some good gold size and pure litharge, grind the latter to a very fine powder. Mix the litharge and gold size to the thickness of cream, and colour either black or dark olive by adding lamp-black. With this paint, as it may be called, make as many cells as are wanted, and when made, dust finely- powdered litharge over them until they are covered a sixteenth of an inch deep ; allow them to stand a few minutes, and then shake off all the loose litharge by means of a few smart taps. The surface of the Fig. ii. Ladies' Tresses Orchid {Spirant 'ies aiitumnalis). Lastrca amithtm grows in woods near Penman Pool. — J. Percraal. cell will now be quite rough. Allow it to stand a few hours, and then press it against a plate of glass. If this be done carefully, a smooth, solid ring will be left on the slide. If the edges should not be as smooth as they ought to be, it is easy to trim them off on the turntable by means of a small chisel. Such cells, after a few weeks, become very hard, and may be finished so as to be very neat. For dry objects they leave nothing to be desired, and as we have had them in use for over five years, we can speak as to their durability. For objects mounted in liquids it will be necessary to coat them with suitable varnish. Thus, for saline liquids, a coating of gold size renders them perfectly impervious. For glycerine use Bell's cement, or a solution of shellac in alcohol." HARD WICKE'S SCIENCE- G OSS IP. 15 The Monthly Microscopical Journal.— We have received a copy of the November and December number of this well-known journal, containing a very brief account of the death of the late Editor (Dr. Lawson), and a notice that the present number is the last of the series, and that henceforth the Royal Microscopical Society intend to publish their own Transactions, after the manner of the other learned societies. The " Spontaneous Generation " Contro- versy. — At a recent meeting of the Royal Society, Professor Tyndall referred to some hermetically- sealed flasks opened on the Alps, which, he thought, set this controversy at rest. Professor Tyndall stated that he took with him last summer to the Alps sixty hermetically-sealed flasks, containing infusions of beef, mutton, turnip, and cucumber, which had been boiled for five minutes, and her- metically sealed whilst boiling was going on. The flasks were kept for six weeks and were then opened, some in haylofts and others near precipices. The two groups of flasks were then placed in a kitchen, where the temperature was from 65 to 90° Fahr. The result was that twenty-one out of the twenty-three flasks opened in the hayloft were filled with organisms, whilst all the flasks opened near the edges of precipices remained as clear as distilled water ! Sph/ERAPHIDES. — I have found the following a very simple and efficient method for procuring sphceraphides from rhubarb when not required to be viewed in situ: — I take a piece of rhubarb and separate the fibres into several small pieces, length- wise, then allow them to remain for a few days until moderately dry. If rubbed together over a sheet of note-paper, the matter thus obtained may be collected on a slide : it will be found to consist principally of detached spharaphides. The few particles of fibre may be easily removed with a camel-hair pencil. They can then be mounted, when dry, as opaque objects or in Canada balsam, as required. — W. H. Harris. Birth of Vinegar Eels. — While occupied, a few evenings since, with the microscope, examining an eel from some vinegar, I was the fortunate witness of an interesting event. I had, by the cap of the live box, caused a sufficient amount of pressure to keep the worm still, when a segment, about the centre one, ruptured and allowed the egress of a twin. The pair were, in all respects but size, pre- cisely similar to their parent. I do not find any men- tion of the like occurrence in Dr. Carpenter's very excellent and interesting work, "The Microscope," very little being written about Anguillulce aceti in the chapter devoted to Ar.mdosa. — IV. H. S. The late Dr. Beatty. — We are sorry to notice the death of Dr. Beatty, of Baltimore, at the early age of 40 years. Dr. Beatty was a valued contributor to our pages, and microscopists are under a debt of gratitude to him for the elaborate articles he pub- lished in these columns on " Decolouring and Stain- ing Vegetable Tissues." Cleaning Slides. — I have seen very frequently in different books, plans, troublesome and awkward, for cleaning the balsam off slides. Why do not people just wash them with rectified naphtha? The balsam is removed instantly. The hardest and oldest, when thick, only requires the naphtha to be warm ; but all that can be should be scraped off first. In this way it is the easiest thing possible. I have used it for slides and lenses for many years. — Edward Thos. Scott. To Clean Old Slides. — The following has been my plan for years, and is simple, easy, and effica- cious : — Warm the slide over a spirit-lamp to remove the covering glass which, place in a water-glass with benzole. Scrape off as much as you can of the bal- sam, or whatever it may be, from the slide, and wash zvith benzole, and use an old silk pocket handker- chief, which I dip into the benzole, a very little of which is sufficient. — John Bramhall. To Preserve Glass Slips ready for Use after Cleaning. — As it is most inconvenient to make each slip chemically clean at the time it may be wanted for mounting a specimen, doubtless most of your readers clean a quantity (say half a gross) at a time ; but then probably they have often, in common with myself, experienced the inconvenience of their again getting dirty before they are used, through their lying about in a drawer or on the table of the laboratory. To obviate this difficulty, I have recently adopted a method which is simple, and, at the same time, so effectual, that the slips may remain for months covered with dust and dirt, and yet be clean and ready for use whenever they are required. It is this : — After cleaning, the slips are arranged side by side, with their flat surfaces in approximation, when a ready-gummed piece of silver or tissue paper,* 10 inches long by a width which varies according to the number of slips, is affixed to their edges in the same fashion as the sheets of paper in a drawing-block are joined together, so that, although they are firmly attached to each other by their edges, their surfaces are left uncovered. The block thus bound is left to dry, when each slip may be detached by running the thumb-nail round its edges. The surface next the adjoining slip should be used for the preparation to be mounted as it is, of course, quite clean, although the other (or exposed one) may have become dirty ; the fragments of tissue-paper being removed after the mount is completed. — J. W. Groves, London. * Any other paper is so thick that it is difficult to separate the slips without the use of a knife. i6 HA RD Wl CKE 'S S CIENCE - G OS SI P. How to Clean Thin Covers. — The difficulty of cleaning very thin covers without breaking them is very great. It is almost impossible to handle them in the fingers, and when they are rubbed between two plain blocks covered with chamois leather, it is difficult to clean more than one side, since one par- ticular side will always stick to the leather next it, and the other side only will be subjected to friction. Mr. Jones has devised a very simple method of over- coming this difficulty. Into a brass cylinder he fits a heavy plug, the lower end of which is covered with chamois leather. When a thin cover is placed on a piece of stretched chamois, and the tube placed over it, the under side only of the cover is subjected to friction, and consequently a few rubs suffice to clean it thoroughly. The tube is then raised, the cover turned over by means of a delicate pair of forceps, and the other side is cleaned. The pressure of the plug is so even that there is no risk of fracture, even with the most delicate covers. ZOOLOGY. Dublin University Biological Association. — We have received three parts of the first volume of the " Proceedings " of this well-known society, con- taining some very valuable and well-written papers, among which are the following : — "The Leaf Struc- ture of Begonia" and " Irish Fungi," by Greenwood Pirn, F.L.S. ; "Some Curious Marine Forms," by Prof. Macalister ; and " Papers on Anatomical Irregularities," by Mr. Malet and F. O. Ross, &c. Arctic Birds. — At a recent meeting of the Zoo- logical Society, Mr. Henry Seebohm, F.Z.S., exhibited and made remarks upon some of the rarer Eggs and Birds which he had obtained during his recent visit to the Arctic regions of the Yen-e-sey, in Eastern Siberia, and gave a rapid sketch of his journey. Some of the skins were interesting from the fact that they extended our knowledge of geographical distribution'; such as, Phylloscopus trochilns and Acrocephahis schccnobanns, from long. 88° E., Anthns Custavi of Swinhoe (A. Seedo/wii of Dresser, A. batchianesis of Gray) from the same longitude, and young in first plumage of this species. The Leeds Naturalists' Society. — We have received a copy of the Report of this Society, and are delighted to find it in vigorous health, and with a good programme of work before it for the forth- coming year. May we suggest to the secretaries of Provincial Natural History, Microscopical, and other societies, that they should send us the names of officers, &c, of their societies, so that our volume for 1878 may be a kind of "Science Directory," for provincial scientific societies ? Rose-coloured Pastor or Thrush {Turdus rosens). — A specimen of this rare bird was obtained [ this year in the north-west of county Donegal, Ireland, where it was captured alive in the garden of the Gweedore Hotel, which is situated about four miles from the coast of the Atlantic. It unfortunately died a few hours after its capture, whilst being conveyed in a basket to the residence of Lord George Hill, the owner of the hotel. This is not the first instance of this beautiful bird being found on our shores. Thompson, in his " Birds of Ireland," informs us of one or two specimens being shot in the neighbourhood of Hillsborough, county Down, some thirty or forty years ago. Perhaps some reader of Science-Gossip could furnish us with other instances of its appearance, either in Ireland or England, which may have come under his notice, and which would be interesting to all lovers of birds. — Shelah. Sagartia sphyrodeta. — A specimen of the beautiful golden-disked variety of this anemone in one of my tanks has twice undergone spontaneous fission within about seven weeks. The original specimen had been in my possession nearly twelve months, and by care and regular feeding had in- creased from about the size of a fourpenny-piece, when fully expanded, to nearly that of a florin. Previously to its first division, I had noticed for several days that the base had been growing more oval in outline, and, to my surprise, on the morning of September 10th, I found it divided into two, right across the centre. The severance was not quite complete when I first discovered it, but became so in course of a couple of hours ; the two portions dragging themselves away from each other, until they were about half an inch apart. The severed edges of each gradually closed together, a suture was formed, and in course of a few days I had two perfect anemones. These have thriven well, fresh tentacles have been produced, and both have increased in size, till last week I noticed that the larger of the two, which I suppose must be considered the parent anemone, was again elongating its base, as if contemplating fission. About noon of the 31st ult., I had the satisfaction of seeing that the process had begun, and watched it at intervals till completed. The base appeared to separate into two lobes, which gradually dragged away from each other, making a rent which extended upwards, till only the mouth formed a connection between the two. This eventually gave way, and the fission was complete, the whole performance occupying about five or six hours. A few acontia were thrown out, but these were soon withdrawn, and the healing process commenced. Two days later I was feeding my stock, and offered food to the two halves, both of which seized it greedily, but soon expelled it through the partially healed rents in their columns. I shall watch the further increase of my specimens with great interest, as the species is one of the hardiest and most beautiful tenants of the aquarium with which I am acquainted. It feeds well, is almost always expanded, thrives in a comparatively small HARD WICKE'S S CIENCE - G O SSI P. i7 body of water, and the contrast between the brilliant yellow disk and the pure white tentacles is very pleasing. Like most other anemones, it opens best at night, and should not be exposed to too strong a light ; mine are kept in a north aspect, and the colour of the disk is as brilliant as when I first had them. The same remark applies to the highly-coloured varieties of S. troglodytes, which are very apt to fade. — Edward Horsnaill, Dover. A Five-winged Butterfly. — At a recent meeting of the Entomological Society Mr. Meldola exhibited a five-winged specimen of the Sulphur Butterfly {Gonopteryz rhamni), which had been taken in Norfolk by Mr. John Woodgate. At the same meeting Mr. H. Goss, F.L. S., showed a specimen of the Sulphur Butterfly, in which the left wings were those of a male, and the right those of a female. Destroying Mites. — In reply to A. F.'s query as to destroying mites in a cabinet of Lepidoptera, I find the best and simplest method is to saturate a piece of blotting-paper in chloroform (methylated is cheapest) ; place it in the drawer infected, and close securely, repeating the operation two or three times, at intervals of a few hours. If the drawer be tolerably air-tight, this will effectually destroy the mites, but it should be carefully watched for some time afterwards, in case of fresh mites coming into existence from e gg s > upon which the chloroform would not take effect. Camphor should be kept in the drawers of a cabinet, and renewed as fast as it evaporates — it will keep mites away ; but if they are introduced with, new specimens, or otherwise, they will exist in spite of the camphor. All fresh acquisitions should therefore be put in quarantine before being placed in the cabinet. Instead of camphor, a very good recipe is, equal parts of "oil of thyme, oil of anise, and spirit of wine," applied as I have described for chloroform and renewed as often as the scent goes off : it must not be allowed to touch the lining of the drawer, as it will stain the paper. — H. Miller, Ipswich. The Berlin Gorilla. — Poor "Pongo," who returned to Berlin to die, after holding his levees at the Westminster Aquarium, has been post-mortemed and dissected by Professor Virchow. His death was ascertained to be due to acute inflammation of the bowels, — the same disease which carries off young children so rapidly. Even in his very diseases therefore, the Gorilla claims an affinity with man ! Chameleon-like Changes in the Frog. — The changes of colour noticed by "J. J. M." in the frog are truly chameleon-like, and, together with similar changes seen in fish, are brought about by the same mechanism. The skin of these animals contains branched and ramified cells pervaded with fine granules of a dark-coloured pigment. Similar cells are found in certain parts of the human eye, and without the pigment in all parts of the body, in the so-called "connective tissues." They can nowhere be better seen than in the preparation of frog's web used to show the circulation. In such an object many cells may be seen as mere black spherical patches, whilst others cover a larger surface and show the branches, joining similar ones from other cells. Now under various stimuli, applied either to the cutaneous surface or through the eye, the branched patches of pigment may be made to contract with the spherical form, whilst other stimuli have the reverse effect. Inasmuch as the cell-branches join one another, they obviously cannot contract ; it is the contained pigment-bearing protoplasm that shrinks out of the branches and forms the globular mass. Obviously, when such a change occurs in the greater number of the cells present, a change in the colour of the animal must result. It has, moreover, been proved that this change can only be brought about so long as the animal's power of sight remains. Destruction of the eyes renders the pigment masses immovable. Section of certain nerves has a like effect. When any of these animals are pursued by their enemies, they are thus enabled, by rendering themselves pale and therefore less easily seen, to elude their would-be captors. Emotions other than fear may also, perhaps, be expressed by this means, and not only can some creatures render themselves pale, but actually approximate their colour to that of their surroundings. Such is the permanent state of very many animals ; this condition being brought about by natural selection, e.g. lions, sand-colour ; muddy water fish, mud-colour ; green, sloths, &c. &c. Pallor, as an expression of human terror, brought about by a contraction of small blood-vessels, may have had a similar cause, it at least seems analogous. — D. A. K. Holes in the Head of Pike. — The apertures . on the head of the common pike (Esox lucius) are the openings of follicles, or mucus-secreting glands. Similar but smaller openings may be found along the lateral line that separates the dorsal from the ventral half of any fish. These openings form an uninterrupted series, from head to tail, and constitute the opening of muciparous ducts that may be seen as white threads by the naked eye on dissection. The function of these glands is obvious ; they secrete the mucus by which the integument of the animal is lubri- cated, and probably act also as sweat-glands to excrete waste products from the system. — R. New Habit of Red Grouse. — It does not matter whether Mr. Dixon or Mr. Dealey claim the honour of calling the attention of naturalists to the habit of Red Grouse perching on trees. It is a habit that all persons who reside near the moors (who take any notice of the habits of birds) are familiar with. I saw them perching on trees and hedges years before the time they say they first observed them. — Jatnes. Ingleby. i8 HARDWICKE'S SCIENCE-GOSSIP. BOTANY. ASPLENIUM SEPTENTRIONALE AT DOLGELLY. — It has been known for some years amongst a few- lovers of nature that not only Asplenium septcntrioiiale but also A. gcrmanicum, Weiss, grew in the Dolgelly district, and it has only been from a desire to preserve the plants from extirpation that the habitat has not been made public. Now that it is known, it may be well to place the discoverers' names on record. Asplenium septcntrioualc was discovered in 1867 growing on an old wall not far from the river Maw- dach, by Mrs. Chamberlain Barlow, of Edgbaston. The plants of it (two only I think) were of course spared, and for some months I saw them every time I passed the locality, peering stealthily at them, for fear they should be discovered by some ruthless collector, and believing at that time they were the only plants in the country. After a considerable interval, when I revisited the spot, the wall had been altered or repaired, and the little ferns had dis- appeared. Some time afterwards the Rev. W. Foley Vernon, of Shrawley, searched the crags on a hill that rose up behind the old wall, and had the plea- sure of finding both A. scptcntrionale and A. ger- manicum in tolerable abundance, and I have a fine- grown plant of each which I owe to his kindness. I enclose a few fronds. May I ask your botanical contributors if they know of any locality where one only of these two species is indigenous without the other occurring somewhere in the immediate neighbourhood? An acute observer has informed me that they are always found together, and sus- pects a more intimate relationship than is generally supposed to exist between them. — T. Belt. Gentiana acaulis (L). — Without in the least wishing to impeach the veracity of Mr. Colebrook, especially as he is "as certain as he is of his own existence," that this plant was growing upon Cader Idris in August, 1862, I would inform him firstly that, so far as my experience goes, the G. acaulis of the Swiss Alps is in its full bloom towards the middle of June, and completely and entirely over by July, ripening its seed in that month. Its place is then taken by G. bavarica, and others of that section, as well as G. campcstris, Germanica, and Amarella, which are essentially August flowerers. With regard to the remarks, "the present plant has no stalk, whence its name acaulis, but cultivated in gardens it becomes [sic] one," — does Mr. Colebrook here in- tend to make a playful allusion to its peregrinatory powers, as well as origin, the word stalk being a double-entendre in the sense of a stalker. I believe G. acaulis was found at Stafi'a in the month of June, 1834-5 ; but doubtless it had escaped from cultiva- tion, as the plant has never been seen there since that time. Concerning the subject of Mr. Colebrook's other query — Cotoueastcr — I obtained it in the month of June, 1874, from the one situation on the Great Ormeshead, where it is still to be found ; and I must say that had I not been guided to the spot by one who knew it well, I might be still searching, but in vain, for it. Associated with it, in the clefts of the limestone rock, was abundance of the local Potcntilla vcrna.—J. C. M. Gentiana acaulis. — I have been interested in reading the remarks on this plant that have appeared lately in the pages of Science-Gossip. Many years ago I came across what I had no doubt was Gentiana acaulis, growing in tolerable profusion, and, as might be supposed, truly wild on the downs between the Needles and Freshwater, in the Isle of Wight. It was a small plant, without stalk, about i^ inch high, half of which comprised the large bright blue flower. At that time I was not aware that Gentiana acaulis was "not a native," so I made sure of my prize, and gathered as much of it as the strong wind blowing at the time would suffer me to do. On subsequent examination and reference to Sowerby's "English Botany "and other authorities, I came to the conclusion, and I believe rightly, that it was the veritable Gentiana acaulis. A little further down the slopes of the hill, upon the same occasion, I came upon Gentiana Aviarclla, so I had an immediate opportunity of comparing the two flowers and observing the wide difference between them. Some time after this I became aware that the lovely little Gentiana acaulis had been excluded by botanists from its former place in the British Flora, and I have often wondered since how it came to pass that its beautiful blue flowers had found that accidental lodging far away from houses and gardens, up on the wind-blown heights of the Freshwater Downs. I have never visited the spot since, and I should be glad to know whether any of the readers of Science-Gossip have, like myself, ever met with it in their wanderings in that locality. — Isabella H. Knox. Plant Chemistry. — Professor Church has ex- amined the colouring matter of the well-known bordering plant with variegated leaves, Coleus Ver- shajjeltii, and thinks that it is identical with a-nobin, the colouring matter of red wines, as well as with other substances extracted from blue and purple flowers. Solanum Dulcamara. — Can any of your readers give me any information as to the properties of the berries of this plant ? " Chambers's Encyclopaedia" says, "red berries of tempting appearance, which, being poisonous, are not unfrequently the cause of serious accidents, particularly to children." Garrod, in his " Materia Medica," says he has administered half a pound of the ripe fruit as a conserve, and without any definite effect. Buffon says " the scarlet berries are not poisonous, five pounds weight given in the course of ten days did not produce poisonous HARD WICKE ' S S CIEN CE-GO SSI P. *9 effects " ; but neither of these authors says if the berries were swallowed by man or beast. I think I should have a difficulty in finding any one who would eat even two or three berries, as they are almost universally considered poisonous. — Dr. Morton, New. Brompton, Kent. Hybrid Primula. — The frequent tendency of the Primrose family to hybridize often causes a difficulty in determining a plant and its varieties. The Primula clatior is by some supposed to be a hybrid between the P. veris and the common primrose ; and Sir William Hooker " was not satisfied that the Primula clatior of Jocquin was really distinct from the nu- merous hybrids between P. vulgaris and P. veris." In one locality near Geneva I found both growing together in abundance, producing different forms of hybrids, some approaching one parent plant and some the other. Many Swiss botanists call the P. vulgaris acaulis, as it appears to be stemless, with a variety /3, which, as having an evident, though very short, stem or scape, they place the Primulas in two divisions, as "especes legitimes capsule fertile," and "especes hybrides capsule avortee " : under the former they include P. veris, P. vulgaris, and P. elatior ; under the latter, Primula acatdi-officinalis, P. acanli-clatior, and P. elatiori-qfficinalis. — T. B. W. Anomalous Parts of Plants. — I gathered some Trifotium repens this last summer at Esholt, near Bradford, the calyx segments of which were transformed into leaflets ; in some of the heads all gradations betwixt leaflets and calyx segments could be observed. I afterwards gathered some in Chee Dale (Derbyshire), in which all the calyx segments were converted into leaflets, some of the latter being on petioles several times the length of themselves. Two friends of mine have noticed this also, but I have not seen it recorded. I gathered some speci- mens of Ctaytonia perfoliata at Bakewell, in all of which the leaves that are usually perfoliate were not so at all. The several text-books I have been able to consult (including Symes) do not give any habitat for this plant : the specimens I gathered were grow- ing amidst Chrysosplenium oppositifolium in the middle of a wood, which appeared a very unlikely place for its introduction as a weed of cultivation. I collected also in the same wood a Myosotis, having the corolla nine-partite. Near Bradford I gathered Sitene inflata with two complete flowers (except the calyx) in one calyx ; also in this neighbourhood, Lotium pe?-enne, in which the spikelets were trans- formed into spikes. Near Leeds I collected y uncus bufonius in a viviparous state, like that which J uncus supinus often assumes ; but I have not seen this state recorded. I gathered a specimen of Lychnis diurna near Miller's Dale, in which the stamens were trans- formed into petals. At Eldwick, near Bradford, I got a specimen of Orchis maaelata, which agreed with the description of that plant in every particular save the lip, which was about twice as long as usual and strap-shaped, with parallel sides, tridentate, the central lobe being less than the others. I have re- ceived from Scotland a specimen of the common Dandelion, the peduncle of which is furcated, bear- ing two capitula. — Win. West, Bradford. Inflorescence of Gourds and Pumpkins. — In Science-Gossip for November was an interesting note on the above topic by John Gibbs. He notices that the fruit on fertile blossoms appear first — before the sterile blossoms on the same plant. In this country (Michigan, U.S.A.) I have often noticed many staminate or sterile flowers open before a single pistillate flower had opened. This I have repeatedly seen in case of Hubbard squashes, summer squashes > and several varieties of cucumbers. I do not make this assertion as doubting what Mr. Gibbs has said, but as a curious difference. If he is correct, perhaps our warmer and drier summers may have something to do with it.— W. J. Bcal. Gourds and Pumpkins. — The fact to which Mr. Gibbs calls attention is one of considerable interest. The separation of the sexes is common enough in flowering plants, and in the Gourd tribe is of two degrees : on distinct flowers (moncecism), or on dis- tinct plants (dicecism). It has also been noticed in these delicious flowers, as well as in those structurally "hermaphrodite" or "monoclinous," that the sexes are sometimes developed simultaneously (synacmic), sometimes successively (dichogamous); but of the two possible cases of the latter — at least in "monoclinous" flowers — the precedence of the male (protandry) is far more frequent than examples similar to the one Mr. Gibbs describes (protogyny). This might be ex- pected in single flowers, since the stamens occupy an older whorl than the carpels ; at least, are generally believed so to do. But when we come to diclinous plants, new interests arise. A most careful and as- siduous American observer, Mr. Thomas Meehan, of Philadelphia, has shown that there is a close relation between sex and energy, and that female flowers are more characteristic of strong shoots than male. Might we not, therefore, expect a plant to produce male flowers only after its energy has been to a cer- tain extent exhausted in producing female ones ? Numerous cases are on record, especially of figs and oranges, of the swelling of the "fruit" without the fertilization of the ovule : it would be interesting to learn if this ever is so with gourds. Of course, how- ever the "fruit-blossoms" may "make haste," they cannot set seed without pollination. In this case, the pollen must be derived from another plant pro- bably, perhaps from another situation where different conditions make gourds flower earlier ; so we may have here an illustration of Mr. Darwin's rules that, while pollen from another flower of the same plant is little, if at all, better than that of the same flower, pollen from another plant is an advantage, and if 20 HARDWICKE'S SCIENCE-GOSSIP. from one grown under different conditions, even still more so. I hope Mr. Gibbs will continue his obser- vations. He could not have a more interesting or practical subject. — G. S. Boulger. Fertilization of Flowers. — Dr. M idler has called attention to the occurrence, in some of the Labiates, of two distinct forms, one with larger hermaphrodite protandrous flowers, and the other with smaller female flowers. He shows that the latter can only be fertilized by the former, and that they disappear when the former are not present. We would suggest that otr botanical readers should devote their attention during the coming summer to the analytical structures of well-known and abundantly-represented orders of plants ; and, further, that they should also note the kind of insects which frequent them, and whether these insects affect any -special colours of flowers. GEOLOGY, Prehistoric Man in Japan. — Mr. E. S. Morse sends a note to Nature, in which he gives an account of the Kitchen Middensat Omori, in Japan, which con- tained arrow-heads, bone implements, but no flint or ■stone weapons. Mr. Morse believes these large shell mounds were accumulated by a prehistoric race of men in Japan. The Insect Fauna of the Paleozoic Period. —Mr. Herbert Goss, F.L.S., has read a paper on the above subject before the Brighton and Sussex Natural History Society. This makes the third •of Mr. Goss's papers on fossil insects, and it is equal in character to its predecessors. In these three papers the geological student is possessed of a most valuable generalization of all that is known on fossil entomology. Jointed Limbs in Trilobites. — Mr. C. D. Walcott has just figured and described jointed limbs in the genera Calymenc and Ceraurus, from the Tren- ton limestone. Calymene senaria showed axial ap- pendages with three joints. In Ceraurus pleurex- anthemus the limb was five-jointed. The legs ended in a single blunt end, and Mr. Walcott thinks these •trilobites will be found to have five or six joints with a terminal claw. He further thinks that the dis- covery of these limbs more closely than ever as- sociates the Trilobites with the King-crabs and Eurypterids. The Cumberland Association of Litera- ture and Science. — A copy of the Transactions of •this vigorous natural history and literary society has been sent us, and it is a pleasure to find so high a degree of culture so far removed from the centres where culture is supposed to be especially confined. But the development of local science is nearly always •dependent upon the personal interest taken in it by a few men, and there can be little doubt that the great success of the Cumberland Association during the last two or three years is mainly due to their possessing such an indefatigable secretary as Mr. J. Clifton Ward, F.G.S., of her Majesty's Geological Survey, the author of a number of remarkably sug- gestive papers on Geology and Physical Geography. Artificial Precious Stones. — MM. Fremy and Freil have recently been experimenting on artificial productions of corundum, ruby, and other crystal- lized silicates. They showed that in a crucible of refractory earth they put a mixture of equal weights of alumina and minium and calcined them for some time at a red heat. After cooling, they found two layers, one vitreous (formed chiefly of silicate of lead) and the other crystalline, and often presenting geodes full of beautiful crystals of alumina. To obtain the red colour of ruby, about two or three per cent, of bichromate of potash was added to the mixture of aluminia and minium. A silicate of aluminia was produced by heating for some time a mixture of equal weights of silicon and fluoride of aluminia. Precambrian (Dimetian and Pebidian) Rocks in Caernarvonshire. — At a recent meeting of the Geological Society, a paper on this subject was read by Dr. Hicks, F.G.S. The author gave an account of the special examination of the great ribs of so-called intrusive felspathic and quartz porphyries which are found associated with the Cambrian rocks in Caernar- vonshire, made by him in company with Professor Hughes, Mr. Hudleston, and Mr. Homfray last summer. He described sections at and near Moel Tryfan and across the mass from Pen-y-groes to Talysarn, in which he showed that instead of being of an intrusive nature, as hitherto supposed, the whole, with the exception of a few dykes at those parts, is made up of bedded volcanic rocks, lavas, breccias, &c, similar to those found in the Pedibian series at St. David's, and that the Cambrian rocks, instead of being intruded by this mass, rest every- where upon it unconformably, and the pebbles in the conglomerate of the Cambrian at the base are, as at St. David's, identical with, and must have been derived from, the rocks below. Similar results were obtained in the examination to the north and south of Llyn Padarn, and the conclusion, therefore, at which the author has arrived with regard to the great mass which extends from Llanellyfine in the south to St. Ann's chapel in the north, is that it is entirely Precambrian, and that it belongs to the series de- scribed by him under the name Pebidian at St. David's. The other mass, extending from Caer- narvon to Bangor, he considered also entirely Precambrian ; and from the mineral characters ex- hibited by a portion of this mass directly behind Caernarvon, he thought it would prove to be, at least at this part, of Dimetian age. The altered beds near Bangor and their associated quartz felsites he HARDWICKE'S SCIENCE-GOSSIP. 21 * considered entirely of Tebidian age, as there is no evidence that the Dimetian rocks are exposed there. Afterwards, Professor Hughes read a paper on the Precambrian rocks of Bangor, which consist of slates, agglomerates, and porphyritic rocks ; and these, he thinks, are equivalent to Dr. Hicks's " Pebidian." Palmam qui meruit. — The Royal Society of England have just awarded Professor James D. Dana, the distinguished American mineralogist and geologist, their highest honour, the " Copley Medal." The "Royal Medal" went to Professor Heer, the equally distinguished fossil botanist, of Zurich. A Fossil Fungus. — A very interesting article in your last number, which is headed " A Fossil Fungus," refers to the discovery of a fossil fungus in Lepidodendron, by Mr. Carruthers, and its subse- quent study and classification by Mr. Worthington Smith. It is there stated: "This is, perhaps, the oldest fungus on record. " As this is not quite correct, I beg to inform you that in 1858, C. Wedl found something very much like Saprolegnia ferox in a Leptiena from the Devonian. In May, 1876, I read a paper before the Geological Society, in which unicellular algoe were described parasitic within a foraminifer from the Lower Silurian, a coral from the Upper Silurian, in brachiopods, and corals from the Devonian, and from a coral in the Miocene. I named and figured this penetrator Palceachlya pcrforans. In the Proceedings of the Royal Society, No. 174, 1876; I explained the physiology and morphology of AcJilya penetrans, now found in recent corals and shells, and explained the life cycle of this saprolegnions plant, so that, from its almost complete resemblance with the ancient form, it could be considered its descendant. The septa, which are said not to occur in the mycelium of Saprolognia are really seen very rarely, but still they do exist. — P. Martin Duncan. Erratum. — In my last paper on the Carboniferous Polyzoa, December 1S77, the reader will oblige by correcting the following : page 272, 8th line in list, G. flesicajinala read G. flexiearinata. Page 273, 1st col., nth line from top, for "genus" read " familv. "—C. R. V. NOTES AND QUERIES, The Pairing of Birds. — Is it sufficient proof of birds pairing for life, that we find the old nests tenanted year by year ? Some birds are known to use the old nests of other species ; e.g. , the House Sparrow, which is one of the species which, upon this evidence, Mr. Dixon quotes as pairing for life, frequently uses the old nests of the House Martin ; and if of other species, why not of the same species ? I fail to see why Mr. Dixon supposes that polygamy tends to prolificness : it can only do so if the number of females born, or arriving at maturity, be in excess of the males. Among mankind, as men and women arrive at adult age in about equal numbers, if one man have two wives, another must go without one, and it is obvious that both the procreative power, and what is probably of more importance, the power to maintain offspring of two males, will be greater than that of one male. Polygamy can only tend to a more rapid increase of population where the number of females is much in excess of that of males, either through female immigration, as in the Mormon settle- ments, or, as more usually happens, through the greater mortality of males. It is hard to believe that nature has been so considerate to mankind as to make fowls polygamous in order that the superfluous males may afford us food. It seems more reasonable to suppose that the habit of polygamy is in some way advantageous to the polygamous species itself. Polygamous animals are usually provided with special weapons of offence, like the cock's spur, and are in the habit of fighting for the females : the strongest and best-armed male wins the largest number of fair prizes, and the progeny of such a male are likely to have the advantage over their competitors in the struggle for existence. It does not seem difficult to explain why species which are monogamous in the wild state should be polygamous in captivity. Given an excess of females over males, and in the absence of social and moral restraints, polygamy follows as a matter of course. — H. F. Parsons, M.D. Pairing Instincts of Birds. — If birds returning to their old nests is a sign that they pair for life, I may add to Mr. Dixon's list the Blackbird ( Tnniits mcrula), for a nest has been occupied successively for the last three years by a pair of these birds. Now as there are two or three other nests in the same hedge, I think it must be the same pair that has successfully reared three broods in the one nest. Perhaps Mr. Dixon— since he has been observing particularly the pairing instincts of birds — could kindly give me some information as to one species of bird pairing with anather (see Science-Gossip, p. 263). I have known instances of hybrid grouse, but never of a hybrid between a blackbird and a thrush. — G. F. B. Mites in a Collection of Lepidoptera. — In reply to the query in the December number of Science-Gossip I beg to say that, having had the misfortune to find mites in my collection of Lepido- ptera, I was recommended to try naphthaline, and so far as I am at present able to perceive, no further de- struction has taken place since I used the same. I put the naphthaline in a small pill-box with a perforated lid, which is glued into the corner of the drawer, and does not attract attention. Any insect specially affected should be removed from the cabinet or store- box and carefully painted on the thorax with corro- sive sublimate. — A. J. R. Destroying Mites on Lepidoptera. — In answer to "A. F.'s " query on this point, let me draw his attention to the following extract from Mr. Newman's preface to his splendid work on British Butterflies and Moths : — " Directly you observe any dust, however little, underneath an insect, .... take out the infected individual ; as soon as he is removed from the drawer, drop benzole on his back, drop after drop, until he is thoroughly saturated, and all his wings are rendered perfectly transparent. In this state remove him to the drying-cage, and there let him remain until all the benzole has evaporated, and his colours have returned, bright and beautiful as ever." I have not tried this method myself, but I have friends who have, and they find it to answer perfectly. — W. J. B. 22 HARD WICKE 'S SCIENCE - GOSSIP. The "Furniture" Beetle. — Having just been put to much expense by repairs to furniture and skirting-boards, &c, which have been injured more or less by the furniture beetle, I should be glad to elicit any remarks upon its probable cure or pre- vention. I have generally found it in the sappy part of the wcod, and have found it in every kind of wood used in house-building and furniture, except in ma- hogany ; and I cannot hear of its being ever found in pitch pine. I am not sure of the correctness of my supposition, but I think that the beetle (it is not larger than a middle-sized pin's head) bores and lays its egg or eggs, and the grub eats till its changing period, the beetle from which then eats its way out ; the holes not being larger in bore than a middle-sized pin. I have just been taking out several pieces of wood in my house, but could not detect the insect itself in any stage of existence. I have only twice seen the beetle, and can recollect the time was summer or autumn. On my own premises I have also found it out of doors, in old wood laid aside two or three years for burning. I hope to have some remedy discovered that may protect the new wood now replacing my damaged furniture and shelves. — y. Hashes. Mistletoe. — In reading the short notes on this species in the December Science-Gossip, I remem- bered seeing many large specimens some few years ago when engaged as a botanical collector in Nor- mandy, that would with ease have been sufficiently long in the stem to have made a "small javelin." At the time, I took particular notice, but I do not believe I saw a single example on the Oak ; the finest specimens were observed on the Lombardy Poplar. It is very abundant in the north of France. — R. Mistletoe on Lime-trees. — I do not think that this is an unusual phenomenon. Next to the Apple, the Hawthorn, and the Black Poplar, I should say that the Lime was the most frequent host of the Mistletoe. I have never seen the mistletoe growing in greater luxuriance than on two fine avenues of limes at Cutteridge House, near Westbury, Wilts. Near Malvern, where the mistletoe is abundant, I have seen it growing on a variety of other trees, as the Oak, the Maple, the Willow, and Robinia Pseudacacia. — H. F. Parsons. Seeds of Mistletoe. — Some twenty-two years ago I put two seeds of Mistletoe in a cavity formed on the stem of a young apple-tree, caused by the partial healing over of the part where a small branch had been cut off the previous season, tying a string of bass over to prevent birds, &c. from picking out and devouring them. They both took, and in three years had grown to about three inches in length ; since then they have grown to about two and half feet through, but during the time have only produced three berries : that was two years ago. Since then one of the plants has died. It first showed symptoms of decay by the leaves becoming yellow and dropping off; since then it has fallen away piecemeal by breakage at the joints, the larger portions still remain- ing attached. The other plant, although so close, remains in perfect health and looks as usual, except that it is much thinner from the loss of the inter- mixed branches of the former plant. I cannot say which of the plants is dead, — either that which bore the berries or otherwise, but the remaining plant has no berries this season. Until the berries were pro- duced, I had a notion that the plants were of one sex, consequently barren, but had always neglected ex- amining them to ascertain the fact, which I now re- gret, as I fancy the berries produced were barren ; — at least, none of them grew when inserted in the usual way. My plants, at first, were of very slow growth : the first season only produced two small stumpy leaves from each seed ; the second, four on each, and so on ; and I rather think only one joint in length has been produced of a season, but as the plant got stronger, frequently four shoots were produced instead of two, increasing thereby much faster, as well as forming a handsomer and much stronger-looking plant. Some years ago, I was much pleased and interested by observing, about an inch above the plant, several young plants which had pushed their way through the bark, which they have since con- tinued to do, always ascending, and about an inch from each other, some of which are now dead and some living ; from which I draw the conclusion that those produced from the former plant are dead also. These off-sets were of equally slow growth as the young seedlings, only a pair of leaves of a season, although more elongate, and I cannot understand H. E. Wilkinson's statement when he says he observed a protuberance and very soon a leaf, — mine always came in twos — and presently a good-sized plant of Mistletoe. Mine always take four or five years to come to anything like a good-sized plant, and I have grown many since the first, both on apple and pear- trees. The " Dumelow Seedling" is the apple on which my large plant is now. It was removed once when the Mistletoe was about five years old : it made not the slightest difference to its growth ; but I have lost plants by removing the tree when only of the first year's growth. I also lost a fine young plant of four years' growth by the dying off of the tree itself by can- ker of the root, the Mistletoe living some months after the tree died, but losing colour and becoming rigid, and finally perishing also. My trees do not suffer in the least from the growth of the parasite on it, either in growth or bearing, although established on the main stem about three feet from the ground. — Wm. Curnow. How to Preserve Animalcul.e. — I have several works on the microscope, but I have never read of any way to preserve animalculce ; that is, the best medium to use. I have tried several, but none have acted satisfactorily; viz., spirits, glycerine, glycerine and camphor : the last was the best. I mounted some Canthocamptus minatus and some ChyJorns sp/uzricus in it, and found the objects looked better than when preserved in the other mediums, but still they were not to my satisfaction. Could you, or some of your correspondents, tell me of some better medium, I should be greatly obliged. — II, Foley- streei, Portland-place. Root- Propagation of the Ipecacuanha. — In a paper on i-oot-propagation read by Mr. Lindsay, of the Edinburgh Botanic Garden, before the Scottish Horticultural Association, that gentleman stated a curious fact in connection with the propagation of the Ipecacuanha by that operation — viz., from a piece of the root about a foot long or only one of the rings of the annulated root, one plant would be the conse- quence. Have any of the readers of Science-Gossip had any experience of the multiplication of that highly serviceable plant in that way ? — M. King. Badly-blown Eggs. — If any of the able corre- spondents to your journal could tell me of some fluid that would dissolve the hard albumen in badly-blown eggs without affecting the shell, I should be much obliged. I have had some rare eggs given to me that I wish to preserve, many of which are so badly blown that they have broken with very careful handling. — G. T. B. HARD Wl CKE 'S S CIENCE -GOSS IP. 23 Preserving Animals. — I have just seen an article mentioning a method of preparing insects, fish, &c, for the cabinet, said to have been practised many years by Mr. Waterton, of Walton Hall. It is stated that the specimens are perfectly life-like, and not liable to damage by moth, mite, mould, or grease. I should be much obliged to any reader of SciENCE- Gossip who would give me a few details of the pro- cess, or refer me to some work containing the neces- sary information. — IV. G. Stormy Petrel. — Dr. Keegan, in his article in the September number of Scence-Gossip, states that this bird is only found in the wake of vessels during stormy weather. He then goes on to give a very ingenious theory to account for this, or rather to account for their following ships at all. In the North and South Atlantic, where the trade winds prevail and storms seldom or never occur, Mother Cary's chickens are constantly seen, and frequently near the equator, where possibly there is not a ripple on the water at the time. I think it is hardly necessary, when accounting for these or other birds following vessels, to bring forward a theory of their supposed love of the beautiful. The fact is, they know by ex- perience that substances— to them very great delica- cies — are continually thrown overboard, and they will as readily follow a hideous collier as a magnificent full-rigged ship. On the Thames, the Herring Gulls have the good sense to prefer fishing-boats, however old and dirt)', to the smartest yacht on the river, well aware that from the former they will obtain the larger amount of food. — y. S. G. The Veteran Eel. — I think that this subject will be one of interest, not only to " E. L.," but also to many aquarium-keepers, particularly so when we read of the death of an eel at the age of twenty-two years. I for one should be glad to know from Mr. Plant its size when he first had it, and at its death. Two years ago I had an eel which has grown three quarters of an inch in my keeping, and is now nearly four inches long. If this be the proportional rate of growth, we shall easily see to what length it will have attained in twenty-two years. I find that the best material to feed eels upon is the common blood-worm, which ought to be well washed before being put into the aquarium ; otherwise some of the mud in which they live will be thrown into the tank. — J. J. Newton. Cement for Marine Aquaria. — I can fully endorse the opinion of Mr. Worster as to the value of pitch as an aquarium cement, especially when used in the manner which I shall presently describe. A year and a half ago I rendered perfectly water-tight an eight-gallon tank which had been for years thrown aside as useless, and it has not leaked a drop since. This last spring I built another, holding about eighteen gallons, with an inch slate bottom, to which are screwed through holes drilled in the slate, the two ends of Spanish mahogany, well clamped to prevent warping, and lined with stout roofing slates cut to exact size. Into the mahogany ends the front and back of plate glass are grooved, and the whole finished with a strong mahogany capping rail all round, which also serves the purpose of tying die two ends well together. The glass is of course set in red-lead putty, and after giving the latter time to harden, I coated all the joints, the inner faces of two wooden rails into which the bottom of the plate glass was set, and in fact, every part which was likely to leak, with a mixture of pitch and gutta-percha (about quarter part of the latter). This mixture was laid on pretty thick with a putty-knife when just hot enough to stick. I then cut strips of sheet glass of suitable widths, and from two to four inches long, heated them over a small gas stove, and pressed them while hot into the pitch : of course, a pair of hot pliers must be used to handle the glass with, or it will fly. This plan I have found to answer admirably ; it prevents the pitch from chipping or flaking off, and the best of it is, a tank so treated is ready for use im- mediately, as there is no effluvia of red-lead to be got rid of, eveiy particle of poisonous cement being covered up with pitch and glass. This tank has now been stocked about four months, and is in eveiy respect satisfactory. I may mention that one or two of my friends and myself have long been in the habit of using for rock- work a calcareous tufa found in this neighbourhood. It can be obtained in good-sized pieces, forms a good nidus for conferva, and is easily worked out into caves and hollows suitable for aquarium animals to shelter in, whilst at same" time hard enough for the purpose. It also has the advan- tage from its porous nature, of holding a good deal of water, so that the space it occupies is not all lost. — Edward Horsnaill, Dover. Aquariums. — Why should sticklebacks fight so in aquariums, as "S" says, unless they cannot get food properly ; for they live in shoals : at least, we find numbers together, though at times they seem very jealous of one another, and do not like intruders into their peculiar domain ? — Edward Thomas Scott. Slugs and Foxgloves. — With reference to Mr. J. W. Slater's observations respecting slugs and snails feasting heartily on the leaves of the Foxglove, I can testify to my fowls doing the same thing with impunity — without any bad result to those who sub- sequently eat their eggs. — G. F. Cooke. Unusual Appearance of the Martin. — This week (December 4) this bird is busily flying about the summit of Overton Hill, Cheshire : it selects a sheltered wooden shed every evening for its roosting- place. It must have been a late-hatched bird, and thus left behind when its friends migrated. My little boy, who takes a deep interest in ornithology, states he believes it has been injured, and, therefore, not able to undertake the wearisome journey to a warmer climate. Mr. G. White would probably have made much of this fact in his day. — R. White Hairbells. — On October 31st, I gathered several beautiful albino specimens of the common hairbell ( Campanula rotundifolid), by the side of the Upper Shaftesbury road, about a mile and a half from this town. I gathered several on the same spot in October last year. It is noticeable that although not the slightest trace of colour was discernible in the flowers, yet, upon being dried, they assumed a bluish tinge. The ordinary pigment was therefore not quite absent, but was only precipitated in the process of pressing. Is not //a/rbell, as above, the correct name for this graceful little flower, on account of its fine hair-like stem, and not harebell, which is quite un- meaning ? — W. R. Tate, Blandford. Bournemouth Insects. — With reference to Mr. Groser's remarks (p. 256, November number) upon the larvae of E.jacobea, I may mention that I have seen them here regularly year after year on the Ragwort, but have often observed that they occur in patches ; i.e. one patch of ragwort will swarm with them, while the next will have none. I infer that this. is due to the sluggish flight of the insect. Bourne- mouth possesses an excellent list of local lepidoptera : : I may instance, N. viridata, E. cribrnm, H. dipsaceas, B. trifolii, L. littoralis, and others. — E. B. Kemp-Welch. 24 HARDWICKE'S SCIENCE-GOSSIP. NOTICES TO CORRESPONDENTS, To Correspondents and Exchangers. — As we now publish Science-Gossip at least a week earlier than hereto- fore, we cannot possibly insert in the following number any communications which reach us later than the 9th of the previous month. Science Gossip Botanical Exchange Club. — In our last number we prematurely stated that all the parcels had been made up and sent out in connection with the above club. The majority of them have been delivered, but there still remain others, which will be forwarded as soon as possible. The work of arrangement and exchange has been enormous, and we must beg those members who have not yet received parcels to enter- tain a little patience. We feel certain that the result will satisfy all parties. J. Bramhall. — It is not at all meditated to bring out a second edition of Blackwall's " Spiders " at present. We are not aware whether Messrs. Douglas & Scott have yet pub- lished their monograph on British Homoptera. S. T.— Get the "Collector's Handy Book," price 2s. 6d., published by Hardwicke & Bogue, 192, Piccadilly. You will there find full instructions as to mounting microscopic objects. The best way of preserving animal bones is to steep them in gelatine, or boil them in a solution of glue. F. H. L. —The "coral-like substance" you sent us from Falmouth beach is not a coral but a lime-secreting sea-weed, called by Harvey Melobesia fasciculata. It is allied to the common Corallina officinalis. E. Edwards. — Many thanks for your good wishes. You had best procure Robson's book of " Botanical Labels" from Messrs. Hardwicke & Bogue, and paste each label on the species. W. K. (Leeds). — We know of no better way of hermetically sealing specimens in bottles containing spirits than the old- fashioned one of covering the outside of the cork with a layer of melted sealing-wax. K. A. Deakin. — The Palaeontographical Society have published the fossils of nearly every British formation, and these are contained in about thirty large volumes. By applying to the secretary, Rev. T. Wiltshire, Lewisham, we have no doubt you could obtain a list of all the society's publications. You can get the implements you speak of at any large natural- history dealer's. J. H. Morton. — There is no possible danger of being bitten by the slowworm (A nguis fragilis). S. T. — For stocking small aquaria see instructions con- tained in "The Aquarium, its Structure and Management," published by Hardwicke & Bogue, 192, Piccadilly. J. D. O.— Get S. Wood's shilling book on "The British Bird Preserver," published by Warne & Co. A. Michael. — Your desmid is Closterinm setaceum (in con- jugation). J. R. James. — Many thanks for your kindly suggestions, they will not be unheeded. EXCHANGES. Dr. Morton, New Brompton, Kent, would like to have a botanical correspondent in Southampton or neighbourhood. For well-mounted slides or good material the following objects, unmounted : — Barbadoes Polycystina, sponge sand, nfusorial earth, cleaned guano, leaves of Deutzia scabra mounted and unmounted ; mounted slides of Polycystina, Foraminifera, flies' tongues (good), diatoms from Varra Yana, New Nottingham, Mediterranean, &c, Arachnoidiscus, Isth- tnia, Salicine, double sulphate magnesia and copper, selenite films, eel's skin, parasites various, polyzoa, and others. — William J. Fuller, Broad Plain Soap-works, Bristol. Herbert Wheldon, South Parade, Northallerton, Yorks, will send post-free fifty foreign stamps, all different, on receipt of eggs of Sparrow or Kestrel Hawk, or any of the Raptores. Sections of Thyroid Gland and Scirrhous Cancer, stained, ready for mounting, in exchange for Slides (Diatoms pre- ferred). — T. V. D., 33, Sloane-street, London. Slides of fresh-water Alga? and Fungi for others of same class or Physiological. Send lists to Dr. Parsons, Goole. Fifteen bottles, each containing, from twelve to sixty sections of British and Foreign Woods, in exchange for deep sea soundings (cleaned)or other good objects. — H. L., 6, Upper Phillimore-gardens, Kensington, London, W. Wanted, British and American Fossil Diatomacese, Earth of Dolgelly, South Mourne, Loch Boa, Bermuda, Richmond, Nottingham, Guano Ichaboe, &c, for good slides, fossils, Swiss Diatoms, Oran, Santa Fiora, Franzcusbad, &c, or cash. — Eug. Mauler, Travero, Switzerland. For river mud from Lagos send some object of interest or good material for microscope. — A. Smith, 198, Essex-road, Islington. Wanted, living specimens of Hydra fusca ; will exchange for unmounted Sertularia abietina. — Henry Leipner, 47, Hampton Park, Cotham, Bristol. Good specimens of Moths in exchange for good microscopic objects : Populi, Ligustri, Elpenor, Bidentaia, Roborardi, Papilionaria, Taminata, Flarago, Persicaria?, Pembica, Croceago, Pyramidea, and many oiher specimens. — J. Mighall, 2, High-street, Lindfield, Sussex. Lardner's " Museum of Science and Art," 12 vols., in good condition, in exchange for any good works on the micro- scope. — W.Wilson, 4, Caledonian-place, Edinburgh, N.B. A Number of Dragon-flies, &c, from the North of Ireland and Diptera, Lancashire, may be had by sending box and return postage to F. Curtis, 32, Woodfield-terrace, Fernhill, Bury, Lancashire. For piece of Cuticle of Aloe send stamped envelope to E. B. L. Brayley, 2, Burlington-buildings, Bristol. For Birds' Eggs or Lepidoptera can offer Sponges from the White Chalk, and other fossils from the Red Chalk, small size, suitable for a cabinet. — M. Lawson, High-street, Bridlington. Wanted, mounted or unmounted Diatoms of every variety in exchange for mounted micro objects. — Atkins, Chemist, 200, Essex-road, Islington, N. Wanted, microscopical slides in exchange for British flowering plants and ferns (many rare). — T. Watson, 'Bank Parade, Burnley. For Foraminifera and Red Spicules from West Indian Sponge please send slides or unmounted material (good) to E. W. Burgess, 35, Langham-street, London, W. Wanted in quantity, good typical Gneiss, Amygdaloid and Porphyries. Good exchange given in Fossils, Shells, or Minerals. — Thos. D. Russell, 48, Essex-street, Strand, W.C. Would the gentleman who sent me three slides for sounding please to let me know his address, as I lost his letter? — A. Alletsee, n, Foley-street, London, W. For specimen of Sertuiaria abietina send stamped envelope and object of interest to Chas. Williams, Kingmeade, Woolcott Park, Redland, Bristol. Foreign or British shells offered for living specimens of the Diving Spider A rgyroneta aquatica. — Tom Workman, Belfast. Duplicates. — Edusa, Cardui, Galathea, Cassiope, Tanira, Pamphilus, Ages/is, Adonis, Chrysorrhosa, Sambucaia, Petraria, Piniaria, Gilvaria, Impura, Chi, &c. Desiderata: Lepidoptera. — A, H. Shepherd, 48, Roden-street, Holloway, N. Offers in birds' eggs for a stamp album containing 332 stamps of various countries, including Egypt, America, Spain, Russia, Greece, &c. — J. Wheldon, care of Miss Appleton, Market-place, Darlington. Wanted, Science-Gossip for 1870, '71, '72, '73, and '74, either bound or unbound ; microscopic slides, &c, given in exchange. — W. A. Hyslop, 22, Palmerston-place, Edinburgh. By By BOOKS, &c, RECEIVED. "Physiography." By Prof. Huxley. London: Macmillan. "A Lecture on Winds, Ocean-Currents, and Tides." By W. Leighton Jordan. London : Hardwicke & Bogue. "Geological and Geographical Survey of Colorado.' Prof. Hayden. "Ethnography and Philology of the Hidassa Indians. 1 Washington Matthews. " Fur-bearing Animals, a Monograph of the North American Mustelidae." By Dr. Elliott Coues. Government Printing Office, Washington, U.S.A. " Industrial Art." December. "Journal of Applied Sciences." December. " Botanische Zeitung." November. " Land and Water." December. " American Naturalist." November. "Time's Footsteps: A Birthday Book of Bitter-sweet." London : Hardwicke & Bogue. Last No. of " Monthly Microscopical Journal." " The Naturalist." December. &c. &c. &c. Communications have been received up to the iotii ult., from:— T. S.— W. W. S.— D. B.-W. J. S.— K. A. D. — H. W. S.— T, B.— J. H. M.— J. M. H.— Dr. M.— T. B. — W. H. S.— R. G. — H.G.— S. T.— W. H. S.— V. C— T. L.— W. P.— H. W.— G. C— F. C. K.— W. M. G. W.— R. J. W.— j. w. G.— W. H. M.— J. J. W. S.— W.,G.— T. V. D.— F. H. L. — G. C. D.— H. L.— E. M.— Dr. H. F. P.— J. S. G.— A. S.— W. H. W.— T. R. M.— H. A. B. L.— J. B.— M. J. W.— H. M. J. M.— E. T.S.-J. H. R.— W. W.— E. E.— G. C. M.— J. B.— S. S. B.— M. L.-W. K.-J. C. J.— F. C.-J. C.-G. C. D.- E. B. L. B.— Prof. G. S. B.— W. E. G.— W. C.-W. A. H.- A. J. R — L. W. G.-T. T. R.— J. D. O.— G. P.— J. D.— j T._W. H. S.— M. S.— W. H. L.— A. A.— C. F. W. T. W. —J. H.— T. W.— A. H. S.— E. F. C— J. W.— W. J. B. - W J. B — E. W. B.— W. W.— T. W.— A. M.— A. S.— D. S. — W. S. W.— J. A., Jun.— J. H. K— J. C. M.-A. R.— 1 T. R. J.— P. M. D.— D. D.— 8k. &c. HA RD Wl CKE 'S S CTEN CE - G OSS IP. 25 THE PRONUNCIATION OF SCIENTIFIC NAMES, By RANDAL II. ALCOCK, F.L.S. BSfiffi^ ^^? K |I§H wm\ P9 pH^jl S/gBr' <** J! ^■3^3 Ml ^j^nt.t^ Wj^jmn^rylm T is a source of satisfac- tion, I should imagine, to all authors, when they find that their works are read ; and I feel flattered that Mr. Newlyn should quote from my work, "Bo- tanical Names for Eng- lish Readers, " especially as, in the half-dozen pages I wrote on the pronunciation of scientific names, I aimed only at giving a few plain, though to the best of my knowledge correct, hints on the subject to those who might wish for them ; but by no means at assuming the position of a teacher of this matter to those who, by their knowledge of Greek and Latin, are competent to form a judgment of their own. But Mr. Newlyn, in his article on the pronunciation of scientific names (No. 153, p. 193), has misunderstood my meaning. He says : " Mr. Randal Alcock points out, in a rule, that in words direct from the Greek, especially modern scientific terms, the g is pronounced hard " ; and remarks, " Really, this is implying that the older terms may go their own way as regards our dealing with this letter in any of them, and the young student in botany must be utterly puzzled in his attempts at utterance of scientific language." Perhaps these words of mine, thus separated from their context, may seem to imply what is stated, but not other- wise. The sentence immediately preceding the one quoted is : " Those Greek words that come to us through the Latin, and have been long in use with us, generally follow English usage, and are pro- nounced soft, though not always ; for instance, both gymnastic and jymnastic may be heard." In an earlier part of the same chapter, I endeavoured to show how much pronunciation must depend upon usage, and how futile it is to lay down hard-and-fast rules to meet every case. I have, therefore, not left it to be inferred that any class of terms " may go No. 15S. their own way," but I have said the rules must be modified by usage. Mr. Newlyn disagrees with my view that the g in scientific names from the Greek should be pronounced uniformly hard, as in Geum and Potamogeton ; in- deed, he asserts that it should not be in these cases, though he allows that authorities differ. I entirely agree with Mr. Boulger (No. 152, p. 191), when he says that " a scientific name is a Latin and not an English word, and must be pronounced, if not spelt, accord- ingly." This being so, the only question is how to pronounce Latin, a question which cannot at present be answered decidedly, as both the traditional English pronunciation and the new pronunciation are being taught. Which will ultimately prevail remains to be seen ; but if the new pronunciation become universal, there will no longer be any difficulty, or ambiguity, regarding such names as have been written about in your journal. Mr. T. D. Hall, M.A., in "A Child's First Latin Book," which aims at leading "step by step to the acquirement of the pronunciation of Latin, as set forth by the professors of Latin at Cambridge and Oxford," says, "c has always the sound of k : as Cicero, pronounced Kikero ; Cresar, Kaysar ; clvis, keevis ; scilicet, skeeliket ; scio, skio. g is always sounded hard, as in go, gun: as genus, gigno, regina." We do not meet here with the pronun- ciation of ch, but in Dr. Smith's "Principia Latina, Part I.," we find, ' ' Latin c, ch = English &." This would give us, or the "utterly puzzled" young student, without any doubt, Rikardsonia as the pro- nunciation of Richardsonia ; Rikardia of Richardia, Lakenalia of Lachenalia ; Fuksia of Fuchsia ; Gera- nium, Totamogeton, Geum, with g like g in gun. I am very much in favour of the new pronunciation myself for many reasons, which it is not necessary to enter upon. I merely say that it has been arrived at by competent authorities, and is now very extensively taught. " The usage of our universities " is rather a vague expression, as they do not all agree ; and so long as we have English teachers who have studied abroad, and distinguished foreign savans visiting us c 26 HARD WICKE'S SCIENCE-GOSSIP. here, there must always be a certain amount of lati- tude allowed, if we retain the English method of pronouncing Latin. We may say Fewschia or , Jeranium to an Englishman, but who would do so to ' a German ? I cannot see, then, that the pronunciation of many of the names can at present be reduced to strict rules, which any one would feel bound by ; scirpus is pro- nounced sirpus, according to the old style ; skirpus according to the new, &c. ; but in the case of quantities, I think absolute uniformity might be arrived at, which is not the case at present. If I were to ask, what are the correct accentuations of Conium, Cyperus, Populus, for instance, I should not expect to receive uniform replies. As to the euphony of the names, those who have to apply them are responsible, and they are supposed to have sufficient knowledge of plants, and the system of nomenclature, to give correct names : much of what remains depends upon taste. " It is certain no one ought to name a plant, if he is not a botanist ; nor is any one at liberty to impose a generic name who does not understand genera ; on the other hand, we have no doubt that any one who knows that a plant is perfectly distinct generically from all others, also knows how to apply a distinct name " (Linn. "Crit. Bot.," § 218). It is true that names are not always everything that might be desired, nor have they always been correct ; but if correct, they should not afterwards be altered. Euphony does not en- tirely depend upon the taste of the plant-namer, for often he has little choice. Thus, as Jacquin wished to do honour to Patrick Browne, and named Brownea after him ; Smith, when he wished to honour Robert Brown in the same way, had to invent a fresh form, and therefore named his genus Brunonia ; Linne having already used Brunia in honour of Lebrun. Mr. Newlyn is scarcely correct in saying that Brownea and Brunonia are "etymologically identi- cal," for, not only are they derived from the names of different people, but also, in the first case, the name was spelt Browne and in the second Brown. Hence Brownea — Theis has it Brownaea — notBrowma, which it would have been but for the final e. It is well these minutice should be noticed, else "both the complimentary importance and the etymological form might be sacrificed." I have not hitherto felt inclined to take any part in this controversy, because, if common usage be taken into account, no decisive answers can be given to the questions asked. Thus "E. C." (No. 151, p. i64)argues that the ch in Lachenalia should have the sound sh, because it was "named after M. de la Chenal." De Theis says it was named after Werner Lachenal, professor of botany at Bale. Whether he was a pure Frenchman, or a pure German, or a German of French extraction, I do not know ; but if he were the latter, as his Christian name, and changed surname, would seem to indicate, there is still no certainty how he pronounced his own name, for the Germans them- selves do not pronounce ch in a uniform manner ; some would pronounce it k, some ch, as in the Scotch loch, some sh ; and there are also intermediate sounds between these to be met with. According then to "E. C.'s" idea, he may call Lachenalia what he chooses without being incorrect ; but certainly Mr. Boulger's view that it should be pronounced as though it were spelt with a h, because it is a Latin word, seems more reasonable. We cannot follow the pronuncia- tion of all languages in commemorative names, but must take them as Latin, and pronounce them accordingly. Magnol pronounced in French, does not correspond with Mag-no-lia pronounced in Latin. I repeat, in conclusion, my opinion that when we have a uniform pronunciation of Latin, we may have a uniform pronunciation of botanical names, but not until then. In the mean time, as Mr. Newlyn says, "the pronunciation of botanical names is but of secondary importance," and I have taken my pen up now, only because Mr. Newlyn has misunderstood what I have previously published on this subject, and, unintentionally no doubt, misrepresented my meaning. This is the general teaching of my book, with regard to the pronunciation of the letter g, in botanical names. In names direct from the Greek, it should be pronounced hard; e.g., Geophlia, Georchis, Geropogon. But if the student always hears the g, in such words as Genista, Gentiana, Geranium, in the British Flora pronounced soft, let him pronounce it soft, though Geranium is a Greek name of Dioscorides ; or, if he sees, judging by analogy, that according to English usage, such names as Gerardia, Geoffroya, Gilia, would be pronounced soft ; let him follow that usage. I would add, that if he should be in doubt about such names as Gireondia, Gesnera, Genipa, Giukgo, let him pro- nounce the g hard. I hope it may be pronounced so before long in every case. THE SEALS AND WHALES OF THE BRITISH SEAS. By Thomas Southwell, F.Z.S., &c. The Sterm Whale {continued). No. VII. THE pursuit of the Sperm Whale is attended with much greater clanger than that of the Greenland Whale, and Beale gives many instances in which, in his own experience, boats were stove in and men lost ; stories of fighting whales, he says, are numerous, and probably much exaggerated ; one, known as " Timor Jack," is said to have destroyed every boat sent against him, till at last he was killed by being attacked from several directions at the same time, thus diverting his attention from the boat which made the successful attack. Another fish, known as " New Zealand Tom," destroyed nine boats successively HARDWICKE'S SCIENCE-GOSSIP. before breakfast, and when eventually captured, after destroying many other boats, many harpoons from the various ships which had attacked him were found sticking in his body. There is one well-authenticated instance of a vessel being attacked and destroyed by a sperm whale : the American whale-ship Essex was attacked by one, which, first passing under the vessel, probably by accident, came in contact with her keel and carried it away ; then turning and rushing furiously upon the ship, the whale stove in her bow ; so serious was the breach that the vessel speedily filled and went down. Most of the crew were away in their boats at the time, but those on board had just time to launch their one remaining boat before the vessel sank. The boats made for the coast of Peru, the nearest land, many hundreds of miles distant ; one of them was picked up drifting at sea, and three of the crew, who were found in it in a state of insensi- bility, were the only survivors of the ill-fated vessel. In addition to the sperm and oil, this species yields another product which is, or was, very valuable, although it is the result of disease, and one would imagine a very uninviting substance — I refer to Ambergris, the origin and composition of which was so long a puzzle to the learned. This substance is now well known to be a concretion of the indigesti- ble portions of the Cuttle-fish, which form the food of the Sperm Whale. The nucleus of the mass is generally the horny beaks of these creatures, and the substance itself is found in the intestines of the Sperm Whale, or on the shores of the seas frequented by this species : no other whale is known to be subject to these bezoars. It was formerly believed that the origin of ambergris was in some way con- nected with the sea, and when it was afterwards found in whales, the fact was simply attributed to their having swallowed it. Sir Thomas Browne writes of the Sperm Whale which came on shore at Wells, in 1646 : — " In vain was it to rake for ambergriese in the paunch of this leviathan, as Greenland discoverers and attests of experience dictate that they sometimes swallow great lumps thereof in the sea ; insufferable foetor denying that inquiry ; and yet if, as Paracelsus encourageth, ordure makes the best musk, and from the most foetid substances may be drawn the most odoriferous essences ; all that had not Vespasian's nose (Cuiodor lucri ex re qualibet) might boldly swear here was a subject fit for such extractions" (p. 356, vol. i.). It was not until 1783, in a paper read before the Royal Society by Dr. Swediaur, that a scienti- fic account of 'the origin of ambergris was made known. At the present time its medical virtues, which were formerly considered very great, are altogether at a discount, and the only use to which it is applied is in the preparation of perfumery. I have said veiy little about the method of pur- suit and capture of this species and of the Right-whale, because it is a subject in which I take no pleasure ; those who wish to know how these peaceful and highly-organi/.ed giants are approached, and how they behave when terrified and smarting under the harpoon and whale-lance, can pursue the subject ad nauseam in the pages of Scoresby, Bcale, and others; the sickening process of "flensing" and disposing of the blubber is described with equal minuteness. I for one cannot appreciate the halo- of romance with which some authors seek to sur- round the whale-fishery. Doubtless the occupation is one of hardship and danger, but the remunera- tion when successful is in proportion, and I can hardly conceive of men inflicting the fearful amount of suffering which every "full" whaleship, or in a still greater degree every "full" sealer, repre- sents, — under any circumstances. Science is con- stantly adding to our resources, and it is sincerely to be hoped that ere long substitutes may be found for animal oil and whalebone which will supersede their use in the few processes in which they are still requisite : should this be long delayed, it is to be feared that the seals and whales, at least of the northern seas, will soon cease to exist. Although so widely spread over the waters of the globe, possessing, I believe, a range greater than any other known species of animal, it is only open and deep waters which can be said to be the home of the Sperm Whale ; and when found in shallow seas, its generally emaciated condition indicates the absence of its proper nourishment ; and the readiness with which whole herds precipitate themselves stupidly upon the sands, shows how little they are acquainted with such objects. Mr. Andrew Murray makes some observations upon this subject, which are so interesting and so suggestive that I must ask you to excuse my making a long quotation. Speaking of those specimens which have now and then been cast ashore in the North Atlantic or in the English seas, he says : "They seem to be un- prepared for, or not adapted for, shallow seas. Accustomed (perhaps not individually but by here- ditary practice or instinct) to swim along the coral islands of the Pacific within a stone's throw from the shore, they cannot understand, their instinct is not prepared to meet, shallow coasts and projecting head- lands. If they were habitual residents in our seas, they must either be speedily extirpated, learn more caution, or be developed into a new species." .... Mr. Murray further says: "I observe that almost every place that has been above mentioned as a favourite resort of the Sperm Whales, although not out of soundings, has claims to be considered the site of submerged land. The islands of the Polynesia, which are its special feeding-ground, are the beacons left by the submerged Pacific continent. In pure deep seas animal life is usually scarce, and the absence of breeding-ground is probably the chief cause of it ; but this only applies to a certain kind of animals, those which require a bottom on which to c 2 28 HA R£> WI CKE 'S S CIENCE - G OSS IP. deposit their spawn ; but there are many which do not require this. The spawn of some floats about unattached ; for others a frond of weed is sufficient attachment ; and it has occurred to me that the dis- tribution of the Sperm Whale may in some way be connected with the geological antecedents of the ocean it inhabits. I think it not improbable that the Fig. 12. Chair in Great Yarmouth Church formed of the basal portion of the skull of a Sperm Whale (from Palmer's " Perlustration of Great Yarmouth"). site of a submerged land may swarm with life, which originally proceeded, or was dependent on it, long after it had been in the deep bosom of the ocean buried. The Sargasso seas, which swarm with Eolidcr. and Crustacea, are examples of this life : it is not invaria- bly either present or absent in deep water, and it is its presence or its absence which is instructive. Those animals which re- quired a bottom to spawn upon may have died out or been developed into others which do not ; and those which do not require such a support may have multi- plied correspondingly. In one of the maps in Lieutenant Maury's book, already cited, there is a space of sea opposite the western coast of South in some way to it — might continue to linger over it long after it had passed beyond the depth at which it could practically have any effect upon the animal life above it ; but if a part of the circumference of the globe has always been under water, before and ever since the creation of life, no life is likely to be found on that spot, because it has never had a starting-point of life from which to begin ; and, as already said, a slender barrier stops the spread of species, and species would certainly not spread to a spot where there was nothing for them to feed upon. Again, animal life could not begin to feed upon animal life till vegetable life had previously prepared the way by providing food for the animals which were to furnish food for others ; and vegetable life could not begin to grow without a foundation of land, accessible either above or below water. The total and constant absence of all life at any particular spot appears to me, therefore, to furnish a presumption that there has never been dry land or shallow water there. Whether the continuance of deep water in one spot for some Fig. 13. Under surface of the Chair (from same work). America, and lying between Patagonia and New Zea- land, marked ' Desolate region, distinguished by the absence of animal or vegetable life ' ; — no sperm whales here— nothing for them to feed upon — and no symptoms, either by banks of Sargasso or coral islets, of any land ever having existed there. There is no ap- parent reason why this place, except from some special cause peculiar to itself, should be more desolate than any other in the same latitude — than the deep sea on the east side of Patagonia, for example. I can imagine that, if the bottom of the sea should subside gradually, where animal life had once abounded, animal life — not that animal life, but animal life due Fig. 14. Skull of Sperm Whale. interminably long time might not have the same effect is another question, which, whatever way it may be answered, would not affect my explanation of the cause of the absence of the Sperm Whale from such spots."* I am indebted to the kindness of Chas. J. Palmer, Esq., of Great Yarmouth, for the woodcuts (figs. 12 and 13) representing the chair in Yarmouth Church which is formed of part of the skull of an individual of this species. The sub-family Ziphiina, which follows next, is, perhaps, the most remarkable of the whole of this interesting order. The Zipkieid Whales, as they are designated, are, with one exception, very rare, and until the commencement of the present century, with that one exception, were known to science only from their numerous re- mains, found chiefly in the Crag deposits. "Since that time, however," says Prof. Flower, in his memoirs of this group (Trans. Zool. Soc, vol. viii. p. 203), "at irregular intervals, in various and most distant parts of the world, solitary individuals have been caught or stranded, now amounting to about thirty, which by some naturalists are referred to upwards of a dozen distinct species, and to very "Geographical Distribution of Mammalia," pp. 211-213. HARD WICKE'S S CIENCE - G O SSJP. 29 nearly as many genera. No case is recorded of more than one of these animals having been observed in one place at a time, and their habits are almost absolutely unknown. . . . This comparative rarity at the present epoch," he farther says, "contrasts greatly with what once obtained on the earth, especially in the period of the deposition of the Crag formations, and leads to the belief that the existing Ziphioidsare the survivors of an ancient family which once played a far more important part than now among the cetacean inhabitants of the ocean, but which have been gradually replaced by other forms, and are themselves probably destined ere long to share the fate of their once numerous allies or pro- genitors." The members of the group may be distinguished at once by the absence of functional teeth in the upper jaw : those in the lower jaw are always quite rudimentary, with the exception of one, or occasionally, two pairs. These may be largely de- veloped, especially in the male sex, and are placed, generally, well forward. The blow-hole is sub- crescentic, and a pair of remarkable furrows occur in the skin of the throat, almost in the form of the letter V, the point directed forward. The skull presents a remarkable appearance in the genus Hyperoodoti) caused by the enormous maxillary crests which produce the peculiar conformation of the head in the living animal, originating the trivial name "Bottle-head." The common Beaked Whale, or Bottle-head (Hyperoodon rostratus, Chemnitz), is of frequent occurrence in the North Atlantic, and generally visits our shores in autumn, sometimes ascending the estuaries of rivers : it has been taken several times at the entrance to the river Ouse. It is solitary in its habits, more than two are never met with in the same place, and in that case it is often the old female and heryoung one : the old male is said to be very shy and rarely secured. In September, 1877, an adult female, 24 ft. long, was taken in the Menai Straits ; it was accompanied by another, probably its young one. The colour is black above, the under parts being lighter : the two teeth in the lower jaw are generally hidden in the gum. Its food consists of cuttle-fish, the remains of great numbers of which have been found in its stomach. Another species of Hypcroodon, H. latifrons, has occurred three or four times on the British coast ; it has also been taken in Greenland. Very little is known about it as a species, and that only from its bones : it is supposed to attain a greater size than II. rostratus, probably upwards of 30 ft. Cuvier's Whale {Ziphius cavirostHs, Cuv.), another of this remarkable group, has been met with once on the coast of Shetland, and it, or its remains, have been found about five or six times in other parts of Europe, and also, it is believed, at the Cape of Good Hope, and the east coast of South America. It has two teeth, one on each side the lower jaw, close to the extremity. Cuvier established the genus Ziphius in 1825, from a fossil skull found on the coast of Provence, in 1S04, which he believed at the time to belong to an extinct animal. ( To be continued.') STRUCTURE OF SAND-HILLS. By W. B. Grove, B.A. LAST summer I had a very good opportunity of examining the structure of the dunes on the Lancashire coast. A copy (fig. 15) of a sketch, made on the spot, may be interesting, as I can find none in our common text-books which give an accurate idea of it. It was taken from a natural section of a hill about 14 feet high, half of which had been neatly blown away by the wind. The irregularity of the bedding, represented by the darker lines, is due to Fig Section of Sand-dune, Lancashire. changes in the direction of the wind, which, after depositing a stratum, often sweeps away a part of it ; and then, after another change, deposits fresh material on the new surface. As the successive laminae conform accurately to the varying outline of Fig. 16. Sandstone Cliff, Suffolk (after Lyell). the surface on which they are deposited, a series of irregular beds is thus produced. This is often called false-bedding. The same name is also applied to diagonal stratification, in which the planes of the lamina of sandstone are oblique to the plane of strati- cation, as seen in fig. 16. But this latter structure can only be formed, I believe, when a current of water, carrying coarse sediment, meets with a sudden 3° HARD WICKE 'S S CIENCE- G O SSI P. check to its velocity, and lets its burden fall ; the particles then arrange themselves at the proper "slope of repose," which depends upon their size and form. This can seldom or never happen to a current of air on a large scale, and consequently diagonal stratification will rarely occur in sand- dunes. My reason for repeating these well-known facts is that, in J. Geikie's small "Geology," I find the following passage: — "Sometimes the layers of de- position in a single stratum are inclined at various angles to themselves. This structure is called false- bedding ; the laminae not coinciding with the planes of stratification Hillocks of drifting sand fre- quently show a similar structure, but their false- bedding is, as a rule, much more pronounced." The first two sentences of this passage contain slightly different ideas, and must confuse the student's mind. According to my observation, moreover, the state- ment in the last sentence is not true, if he takes the latter of the two definitions apparently given of false- bedding, as he would naturally do. It is best not to use the term false-bedding at all, but discard it, as is done by Lyell and Jukes, in favour of the two, irre- gular bedding and diagonal stratification. The latter of these cannot be called by the rejected name, as it is not the bedding but the lamination that is ab- normal ; we may, indeed, apply the name to the former, but we shall have to explain that false means irregular in this case, and we do not gain much, except the opportunity of writing a second sentence to explain the meaning of the previous one. THE CLASSIFICATION OF THE FORAMINIFERA. By W. K. Marriott. THIS was the subject of a paper recently read before the Metropolitan Scientific Association. The author referred to the Eozoon Canadense, and while giving a brief recapitulation of the arguments in favour of its organic origin, he held it up as not only the fust of all foraminiferous life, but also, in its special capacity as a rock builder, as typical as the very Globigerina itself. He considered as inimical to the claims of the Eozoon that Messrs. King and Rowney, the leaders of the opposition, had lately received a grant from the Endowment of Research Fund, for "Researches to determine the Structural, Chemical, and Mineralogical Character of a certain Group of Crystallic Rocks." If this were aimed at the Eozoon, he was content to leave the matter in their hands, feeling confident that its position in the animal world was assured. After referring to the utility of classification in general, he showed how the classification of the Foraminifera had been alternately neglected and over-indulged in ; how in the one case it was left to itself, and in others had been filled with synonymes, and how M. D'Orbigny had rescued it, and how he again had spoiled it. He then showed the system of the classification of the whole Protozoic group, and how its two great branches, the Rhizopoda and Ciliata, develope on the one hand, through many stages, up to the many- chambered Foraminifera, and on the other to the Actinophrys and Vorticella. He regretted he could at present do no more than indicate the great question that lay open at this point, namely, how these two developments of Protozoic life are related to the supplementary groups of Polycystina, Thallassacollida, and Spongiada, and to the Ichthydina and Noctilu- cida. As the classification of the Foraminifera rests, by reason of the simplicity of its animal matter, upon no physiological basis, it remains very clearly that it can only be upon the structural difference of its shell ; this, again, being due to the hardening, with only very slight modifications, of the outside of the creature— the calcifying of its epidermis, as it has been somewhat curiously called ; this classification rests on very reasonable and simple grounds. The necessity of the first great divisions into Monothalamia and Polythalamia immediately suggests itself. The Monothalamia, or one-chambered Foraminifera, con- sists of three families. The first, and largest, in point of genera, is the Lagynida, so called from the flask- like shape of its members. Specimens were shown under the microscopes in the table, and were found to exhibit every variety of form of flask that ever left the hand of the potter. This distinctive feature was also shown upon the black-board ; indeed, Mr. Marriott materially assisted his audience in understanding the principles of the classification by sketching thereon typical genera of all the families, giving the salient points in the structure of the shell by which the creature earned its name and position. The second family, Orbulinida, has but one member, but this is the interesting Orbulina that the Challenger Expedi- tion has brought prominently to the front ; its points of resemblance to the Globigerina were dwelt upon, and also its curious divergences from that genus. The third family, Comusfii ida, was then shown, and its great apparent resemblance to our fresh-water mollusk, the planorbis, at once fixed it on the mind ; this concluding the Monothalamia. The grouping of the Polythalamia was next shown, but here a greater number of families are found, and conse- quently intricacies of various kinds to be encountered. The first group, the Helicoidea, contained every spiral- shaped Foraminifera there was, and some, like some of the members of the first family, that were not spiral at all, but simply possessing more chambers than one. These were the Miliolida, from their resem- blance to millet seed. The second family, Turbi- nida, possessed, with many variations, a shell like the well-known mollusk Turbo, and specimens of this family are found in all collections. A sub- family of this, called, from its clustering and grape- HA RD WICKE 'S SCIENCE - G OSSIP. like form, the Uvellida, contains the world- famed Globigerina. And another well-known sub-family, the Textilaria, shows a curious conformation of a spiral that produces the appearance of being woven. Then comes the second great family of the Poly- thalamians, the Natitiloidea, that led M. D'Orbigny into the error of classing them with the Nautilus and Ammonite. A reference to specimens showed how far he was justified in this. The first sub- family, the Cristellarida, the second Nonionida, third Peneroplida, and fourth Orbientina, contain well-known genera that, either in outward form or inward structure of cell and segment closely mimic the form of that great class from which more recent investigation has banished them. The remaining two families were then enumerated, and the Orbitn- lita, as being the most interesting belonging to them, was detailed, after which the Rhaboidea, the second great group, or rod-shaped Foraminifera, was ex- plained. This possesses but one family, the Nodosa- rida, whose knot-shaped chambers, arranged one on another, enables everybody at once to identify them. This brought the classification to an end. Mr. Marriott, in conclusion, passed on to the life history of one of the Foraminifera as typical of the whole of the class. He chose the Globigerina, because round it has centered the most popular and scientific interest and research, and gave the most recent investigations and speculations on the subject. A VISIT TO SPONSA'S HEADQUARTERS. By H. C. Dent. AFTER' reading the two papers on " Lepidoptera of the New Forest" and "Sport in the New Forest," our hopes were roused, and we arranged to go] to that Elysium in the long vacation. As my brother was not free till the first week in August, I filled up some of the spare time in visiting Darenth Wood, Box Hill, and Epping, in successful quest of the spring species ; and at the end of June went for three weeks to Switzerland, and visited its glaciers, snow-peaks, and insect hunting-grounds. Here I must wander, and give a few localities for those who propose a trip to that glorious country next season. The upper end of the Lauterbrunnen valley, near Trachsellauenen (very good little inn) is a splendid place. Here, while revelling in the sight of the Jungfrau, Monch, and many other superb peaks, you may take Machaon, Arion, Hyale, Cratcegi, Globu- larics, Trifolii, Lonicenc, Grammica, two kinds of large copper, and many foreign species of blues and fritillaries ; on the Chaumont near Neuchatel, Apollo and Podalirius abound (also the most atrocious and pertinacious Diptera) ; at Grinclelwald I captured four superb Machaons at one fell swoop ; the Nicolai Thai — and in fact the Zermatt district generally — with the vineyards above Saxon (Rhone Valley) well repay a visit ; while at Gryon, near Bex, Dia and other rare fritillaries abound ; besides Sinapis, Hero, the Zygenida:, Szc. To return. We arrived at Brockenhurst on August 8th, and put up at the "Rose and Crown" (pro- prietor, James Ings), where we had, a week previously, ordered beds. Nothing could be more cheerful than our rooms, and during our whole stay we were most comfortable, while the charges were reasonable. Affer a good lunch, we sallied forth for a couple of hours, and — considering that the weather was bad — obtained a very fair "bag." In the evening, however, we were not so fortunate, as we only took one Promissa and a few Pyramided ; although the weather was suitable, rarities would not appear. The next morning we went through the Forest to Lyndhurst, on the right side of the road for about halfway, and then on the left. We saw innumerable . Paphia — all more or less rubbed — two Sibylla, and ' ' buttered " a female Iris ! This splendid lady was sipping the nectar from a bramble blossom, when down came the net over her, but, alas ! her imperial majesty quietly glided downwards through the thorns, evading the death-dealing gauze, and soared triumph- antly to the top of a neighbouring oak. This damped our spirits, but they soon rose when we captured two Argiolus and a pair of Qiiercus. The latter we found very abundant at the tops of young oaks ; so at length we devised a plan for their capture, and having cut down a straight birch " stick" of about 15 ft. long, and fixed a net at the top ; after two days' practice we succeeded in taking eighty specimens in less than a couple of hours ; the abominable Forest flies tormenting us all the time above measure. We saw daily a few Iris besporting themselves above and around the high oaks, but they were inaccessible. From August 8th to 10th, the weather was unpro- pitious ; as clouds, wind, and rain are not compatible with fly-catching. However, as we liked the sylvan beauties of the places we had visited, and as we feared "to go farther and fare worse," our daily plan was to start from the "Rose and Crown" about nine, go through the Forest to Lyndhurst (about three miles direct), where we arrived about one. Then after lunching at the "Crown and Stirrup " (three minutes from forest, proprietor Charles Pack, who lets apart- ments), we returned through the Forest, arranged our captures, dined, and set off for sugaring. At length we were told of a place where Sponsa was said to abound. "Some gentlemen 'uv took fourty a noight this season," said our informant. Thither we determined to go, and the following evening (August 13th) we started, equipped with bags full of empty pill-boxes, chloroform and cyanide bottles, and corked boxes well stocked with No. 6 pins. We arranged to sugar 150 trees, and keep on visiting them till we were tired. We had sugared over 100 when an individual approached armed with a net, a HA RD IV 1 CKE 'S S CIENCE - G SSIP. cyanide-bottle and a corked box. We tackled him. "Any Sponsa about? Wy bless yer, 'eaps on 'em. Thur's one on that thur tree now." Our blood was up, we longed to dart at it, but it was that man's tree, and we refrained. He told us he had taken 1 20 in three nights, and that his usual nightly haul was from twelve to twenty. We asked him how many trees he " painted." "Wall," he said, "I begun doin' about thirty, but w'en they're plentiful I doaint have no time to look at more'n about six trees ; there's ten on a tree sometimes." We were roused to mad excitement ; in half an hour we had taken a dozen on as many trees. Many flew off, and that night we had no nets. It was now 8.30, and we met our friend going home. " They're ovur for to-noight," said he. We stayed another half-hour, but took only a couple on his trees. Fig. 17. Dark-crimson Underwing Moth (Catocala s/>ousa), The next night, having found that Sponsa flew early, we sugared earlier, and before dark had taken another dozen Sponsa, and two or three Promissa, besides the rare Subseaua. We had intended going to the Isle of Wight on the 15th for Hyale and Helice ; but another Sponsa hunt was not to be winked at. That night we captured twenty-one Sponsa and two Promissa, while the multitudes of Pyramidal were as usual a perfect pest. To see whether any Sponsa are settled on sugar needs some practice, when their wings are folded over their backs — especially in the dusk — as the upper wings resemble closely the bark of the trees ; when, however, the wings are partly expanded — showing the splendid crimson bands — I can hardly imagine a more exciting sight ; the very thought of it makes me thrill even now. Our mode of proceeding was to pill- box the moths, pour in a drop of chloroform, and when they were quiet, pin and remove them to the corked box. When we got home they were stabbed with oxalic acid. If they were too wary for the pill- box or cyanide-bottle, we netted them, and then pill-boxed. We thus found half a dozen pill-boxes ample. At length, on the 16th, we left Brockenhurst with sad hearts, took the train to Lymington, and steamed across the Solent, at the rate of four miles an hour, under a hot sun, to Yarmouth, in company witli a flock of sheep and a fat farmer, who was much wrapped up and enduring all the agonies of sea-sick- ness. We were greeted by numerous Rdusa, Cardui, and Polychloros, besides innumerable Atalanta. Having "humped" our knapsack, we .marched on the west side of the Yar to Freshwater. Wishing to be near the sea, we scorned the respectable Red Lion Inn, and put up at the Albion, Freshwater Bay, where we were duly charged next morning. That afternoon we walked towards Alum Bay, but a strong gusty wind prevented anything more than a grand view from the beacon above the Nodes, and the capture of a few Corydon and Edusa. As the weather continued un- favourable the next morning, and it was incum- bent upon us to be in London by Saturday, we threw over our plan of walking to Shanklin, Ventnor,and Cowes, and determined to have another evening at Sponsa 's headquarters. We therefore went back to Yarmouth, where we netted many Edusa, Galathea, Cardui, and a hybernated Helice, and then returned to Brocken- hurst. We were rewarded : over two dozen Sponsa requited our endeavours before 7.45, when the moon shone brilliantly, and the underwings retreated to the tops of the oaks. This brought our Hampshire expedition to a close, and the next lepidoptera I saw — three days after — were some Edusa, Io, Cardui, &c, in the picture-galleries of The Hague, Haarlem, and Amsterdam, calmly flitting round and settling on bouquets which, though painted a couple of centuries ago by Mignou, Ruysch, and others, still retain much of their original freshness. The following is a list of thirty-one diurni we saw in the New Forest : — Rhamm, Edusa, Brassicie, Papa, Napi, Galathea, sEgeria, Ilyper- antlius, Megara, Semele, Tithonns, Janira, Pamphilus, Sibylla, Atalanta, Io, Polvehloros, Urtiae, Cardui, Iris, Quercus, Betuhe, Adippc, Aglaia, Paphia, Phleas, Argiolus, Alexis, Artaxerxes, Sylvanus, and JJuea. We were informed that this year had been bad for Valezina, and especially for Sibylla. Of the latter we only saw half a dozen, while ten days before they were abun- dant in Fssex. Orion and Balis had been plentiful. HARD WICKE'S SCIENCE- G OSS I P. 33 A PLEA FOR THE MICROSCOPE AS A TOY. IT 7E are °f ten reminded that the microscope is V V no longer a toy, but a scientific instrument, and those who use it for recreation only are not un- frequently hard hit, as mere wasters of time and desecrators of a noble power. Now, while fully appreciating the scientific use of the microscope, I would suggest a slight alteration in the above dictum, and say, it is not only a toy, but a scientific instrument. I would plead for it as a source of amusement. The President of the Quekett Club, in his recent address, reminds us of a remark in the first page of the "Microscopic Journal" of 1841, where it is said of microscopic research in those days, that it "is for the most part an amusement rather than a profession" — it is an "intellectual pastime, which is sure to terminate in beneficial results. General knowledge may be acquired by observation," and this " by industry and perseverance imperceptibly produces recondite science." This is just the view I would take of microscopical employ- ment. It is first an " intellectual pastime." Wearied in body and mind the man of business or of litera- ture seeks rest. Some find it in mere lounging in an easy-chair, and joining in the family chit-chat ; others in listening to the music which a wife or daughter elicits from the pianoforte. There is no objection to this ; but if the taste leads to the observation of nature in the sky, the earth, the sea, then a special interest is felt in whatever tends to reveal the secrets of that existence by which we are surrounded. Some turn to the telescope, others to the microscope, not as a means of scientific research, but as "an intel- lectual pastime." Investigation requires powerful effort, both of mind and body. Few have this to expend now-a-days on what does not bring grist to the mill. The mind wants recreation, as the appetite longs sometimes for change of diet and enjoys the dainty bit. The holiday keeper rushes into the country, not to study, but to enjoy, its beauties. He visits the picture gallery, not to become an artist, but to satisfy a taste. He goes to the British Museum or the Zoological Gardens not to become a naturalist, but to enlarge his ideas. He cultivates a variety of sweet and pretty flowers in his garden, not with the remotest intention of becoming acquainted with their orders and relationships, but purely for the enjoy- ment to be derived from them. And why may a man not use his microscope in the same way ? What wonders — what beauties — does it reveal ! Well has it been said that the microscope is a door into another world. It is so, and the man who uses it merely as such is amply rewarded. The door is opened and he is almost bewildered with the variety and beauty of what he sees. His mind is enlarged, his views are corrected ; his taste is charmed, his wonder excited. The whole man is elevated, refreshed, and invigo- rated. It is not only a pastime, but "an intellectual pastime." But, further, we are told it is "sure to terminate in beneficial results." This " intellectual pastime," then, does not as a rule stop there. It is not a lovely vision which vanishes away, but is an avenue to a brighter and broader view. It induces the habit of observation, and surrounds even the least things with a halo of interest which they could never otherwise have possessed. The smut on the ear of corn — the disease of the leaf of the potato — the mould on the cheese — all are now full of interest. The most un- promising object often exhibits a most unexpected character, or reveals a long-looked-for secret. And thus the mind is not only refreshed but stored with a new fact, which in its turn proves to be only the cradle of another : so, step by step, the " beneficial results " are evolved. And great as these are in an educational and abstract point of view, they are by no means wanting in a practical, as the application of the microscope to physiological, histological, and commercial subjects, abundantly proves. Let us begin, then, by play. If it ends here it is at least as innocent and pleasing as any other — let some of us begin by using our microscopes as toys, let others use them so sometimes, for the amusement of the uninitiated— it is "an intellectual pastime which is sure to terminate in beneficial results." This toy, moreover, is not an expensive one, either to begin with, or to keep going. If you buy a gun there is the annual licence, and the constant supply of ammunition. If you buy a horse, the first outlay is nothing compared with the keeping of it. But when once you are provided with a microscope, there is no tax to pay, no food required. Let this be a plea for getting a fairly good instrument at first, capable of being added to as required. Even the magic-lantern soon tires unless new slides, which aye very costly, be continually added. Having, then, this toy, we learn to find objects which cost us nothing, but, on the contrary, contribute largely to our pleasure and profit. It has, too, a great advantage over the telescope. You have not to wait for cloudless nights, nor to run the risk of colds and neuralgia. Every night is a microscopical night, and the long dark evenings of winter may be not only ■beguiled but improved. — T. R. J., Codicote Vicarage. PARASITES ON FISH. By John Davis. THE subject of the various parasites found en fish has not hitherto received much popular attention, except in Van Beneden's " Animal Mess- mates." It is hoped, therefore, that the following description of three of such parasites may induce other naturalists to contribute further information on this subject to the pages of Science-Gossip: 34 HARD WICKE 'S SCIENCE ■ G OSSIP. Parasite of COD (Gadus morrhua) taken from the outside of the gill (there is another parasite which infests its back). — The tail is composed of two tubes, finely marked, which commence at the end of the animal at each side, and gradually narrow until they meet. These tubes are nearly as long as the body. The Gurnard [Trigla hirundo) has parasites : this one was taken from the eye, to which it fastens itself by the large wheel-like sucker ; it then bends its body until it brings the small rings at the end of the animal on the fish, and so jerks itself along. I have drawn one end of the large sucker, as seen undei Fig. iS. Parasite of a Ling; 3-inch object ; size, -A- x T * T ; pale yellow and pink spots, with a dark brownish-pink eye. The size of the specimen is -fa of an inch, and the objective used in this instance was i^-inch, with C eyepiece. Fig. 19. Parasite of Gurnard. — This parasite infests the eye of the fish : it is a milky-white in colour and \ inch long ; it moves about like a caterpillar ; i^-inch A eyepiece. End of sucker through a J-inch. Parasite of Ling {Molva lota). — The integument of this parasite is covered with small spots and lines, and the body is of a dense opal-white. An indistinct oesophagus (on account of the thickness of the animal) can be traced from the eyespots to the stomach. The latter is composed of a spiral arrange- ment of tubes, and marked with cross-lines, the same as the antenna of the Lobster. It is a pretty sight to watch the circulation in these vessels. At the dorsal end is a rather large cavity, which I take to be the ovary. The size of this parasite is -f'$ x -fa, and examined through a 3-inch objective. It was taken from the back of the fish. Fig. 20. Parasite of a Cod ; ii-inch ; size, fg '•' opal-white, with a pink eye-spot and dots. a i-inch objective. The length of this parasite is about -]- inch, and perfectly white. WHITE MITES. DURING the month of June, 1877, whilst driv- ing in the countiy, I observed a black poplar tree evidently suffering from the ravages of insects ; I therefore stopped the vehicle, and got out to ex- amine. I found the tree bored in many places by the larva; of the Goat-moth (Cossus ligniperdd), three of which I secured. A considerable portion of the bark was loose, and the sap kept this quite wet, the peculiar smell produced by the larva? being very evident. On removing a portion of the bark where it was moist with sap, I found it covered with a moving mass, consisting of myriads of very peculiar White Mites. On examining them under the micro- scope, I found them to differ from any Mites I had ever seen, nor could I find any notice of similar ones in any work to which I could refer. The females, which were in the greatest abundance, were egg- shaped, the larger end being in front, and the sides towards the posterior, somewhat bent in. On slightly compressing them, they were seen to contain eggs. The abdomen was of a milk- white colour, and the legs reddish-brown. On crushing one of the Mites con- taining eggs, one or two young ones escaped from the almost mature ova ; these had only six legs, one of the hind pair being missing. The males, which were few in number compared with the females, were very peculiar in appearance ; their bodies were less in size, flatter, and the legs longer and stouter in proportion than those of the females ; the posterior pair not used HARDWICKE'S SCIENCE-GOSSIP. 35 for walking, but stretched out backwards, their ex- treme ends bent inwards, and, as far as I could make out, not furnished with claws. Their gait was ex- tremely awkward. In certain Dermaleichi, found on small birds, the males have one of the hind pairs of legs very largely and peculiarly developed, but in their case it is the third, the fourth pair being very small, and used in walking. Fig. 21. Male of White Mite. Fig. 22. Female of White Mite. About the middle of August I again visited this tree, and found upon and with the White Mites a number of Hypopi, but whether these were parasitic on the White Mites, or merely residing with them, I was not able to determine. I passed this tree on several occasions during the summer, and fre- quently saw Wasps and Red Admiral Butterflies enjoying the sap, which kept some parts of the tree continually moist. The figures are all drawn from mounted specimens under a §° object-glass, Fig. 23. Young of "White Mite. Fig. 24. Hyjiopus found with White Mites. with A eyepiece, and are magnified about 72 diameters. Kirton Lindscy. C. F. GEORGE. THE HISTORY OF OUR SALAD HERBS. Part III. — Mustard. MUSTARD was, according to the belief of the ancients, first introduced from Egypt, that country which claims the honour of being the birth- place of Ceres, the goddess of seeds, and ^Esculapius, the god of medicine, through whose means this plant was made known to mankind as an agreeable and wholesome herb in its green state ; while the seed was used as a medicine, and occupied the first rank among alimentary substances which exercised a prompt influence on the brain. Mustard is mentioned by Pythagoras, and was employed in medicine by Hippocrates, B.C. 480. Pliny states that there were three kinds of mustard cultivated in his day ; the first of a thin and slender form, the second with a leaf like that of the rape, and the third with that like the rocket. The best seed, he says, was imported from Egypt, but that this plant grew in Italy without sowing. The Romans made great use of the seed in medicine ; the oil extracted from it, mixed with olive oil, was used by those who suffered with stiffness of their limbs after a cold bath. Pounded with vinegar it was employed as a liniment for the sting of serpents and scorpions, and a dose of it effectually neutralized the poisonous properties of fungi. The Romans, and other nations after them, used to ferment mustard- seed in new wine, which converted it into a kind of inferior brandy, and was known by the name of Must urn aniens, burning wine. The mustard-seed mentioned in the Scripture has of late years been a matter of considerable controversy, some authors supposing it to be quite a different plant from the one we are now treating of ; but it is generally believed by the best authorities in the present day that the plant referred to was Sinapis nigra, the common mustard, which is indigenous to Palestine, as it is to Britain. Dr. Thompson, in his " Land and the Book," records that he has seen this plant as tall as the horse and his rider in the rich plains of Acre. 36 HARD WICKE'S SCIENCE- G OSS I P. " As small as a grain of mustard-seed," appears to have been a proverbial expression for any small object among the Jews ; and this seed, which was the smallest the husbandman was accustomed to sow, produced the largest results by becoming the greatest of the husl landman's herbs. We have no record when mustard was first used in this country, but in the household accounts of the thirteenth and fourteenth centuries we find that mustard was known to our forefathers under the name of " Senapum," and appears to have been used in large quantities, for in that interesting Household Book of the Earl of Northumberland, in the reign of Henry VII., it is stated that 160 gallons of mustard-seed was the allowance per annum to his servants and retainers. In those days the seed was not manufactured, but brought to table whole, when it was bruised and mixed with vinegar, according to the taste of the eater. It was not only used as a condiment, but also, no doubt, for medicinal purposes. Tusser, who wrote his "Five Hundred Points of Good Husbandry " in the reign of Queen Mary, says, in the direction for February, — ■ "Where banks be amended or newly upcast, Sow mustard-seed after a shower be past." From this it appears that mustard was cultivated as a field crop ; we also find it mentioned as an agricul- tural produce in Rogers's " History of Agriculture and Prices in England," as far back as 1285. It must then have been S. nigra, black mustard, or S. arvensis, the charlock, for Gerard tells us that the garden mustard, which produces the whitest of seeds, had not become common in the days of Queen Elizabeth, but that he had distributed the seed into different parts of England to make it known. He says, "Mustard makes an excellent sauce, good to be eaten with gross meats, either fish or flesh, because it promotes diges- tion and sharpens the appetite." Thomas Cogan, M.D., of Manchester, who published his "Haven of Health " in 1605, says, "The force of the seed is well perceived by eating mustard, for if it is good in making to weep we are straightway taken by the nose and provoked to sneeze, which plainly declareth that it soon pierceth the brain. Wherefore as it is a good sauce and procureth appetite, so it is profitable for the pulse, and for such students as be heavy-headed and drowsy, as if they would fall asleep with meat in their mouths. And if any be given to music, and would fain have clear voices, let them take mustard- seed in powder, work the same with honey into little balls, of which they must swallow one or two down every morning fasting, and in a short time they shall have very clear voices." Shakspeare mentions mustard as a condiment in his play, "Taming the Shrew," act vi. , scene iii. , where Gi itmio says to Katliarina, ' ' What say you to a piece of beef and mustard?" It is also mentioned in his play " As you like it," in connection with pancakes (see scene iii.). In Evelyn's time, Tewkesbury was famous for its mustard. The seed, Coles tells us, in 1657, used to be ground there and made up into balls, which were brought to London and other remote places as being the best the world affords. Mustard used formerly to be largely culti- vated and manufactured in the county of Durham ; but until the year 1720 the seed used to be pounded in a mortar and coarsely separated from the black integuments of the seeds, and in that rough state prepared for use. About the year mentioned an old woman of the name of Clements, resident at Durham, conceived the idea of grinding the seed in a mill, and to pass the meal through the several processes which are resorted to in making flour from wheat. The secret she kept for many years to herself, and in the period of her exclusive possession of it supplied the principal parts of the kingdom, and in particular the metropolis with this article ; and George I. stamped it with fashion by his approval. Mrs. Clements used to travel twice a year to London for orders, and was able to pick up a small fortune. From this woman's residence at Durham, it acquired the name of ' ' Durham mustard" (Mechanic's Magazine, vol. iv., p. 87). The seeds of Sinapis arvensis, charlock, and Kaphanus raphanistrum, the wild radish common in our corn- fields, are often sold and used as a substitute for mustard-seed. The seed of the black mustard, like that of the wild sort, and also of the wild radish, if sown below the depth of three or four inches, will remain in the ground for ages without germinating : hence when once introduced it is difficult to extirpate. Whenever they throw the earth out of their ditches in the Isle of Ely, the banks come up thick with mustard, and the seeds falling into the water and sinking to the bottom will remain embalmed in the mud for ages without vegetation (Loudon's "Ency- clopaedia of Agriculture "). Sinapis alba appears to be a native of the more southern countries of Europe and Western Asia. It is now cultivated not only as a garden herb, but is grown very largely as an agricultural crop, chiefly as food for sheep or to be ploughed in for manure in its green state. Mustard is extensively cultivated in the Fen lands of Lincolnshire and Cambridge, also in Essex and Kent. Its medicinal properties are well known ; in its action it is an irritant, stimulant, emetic, and stomachic. Some authors think Sinapis is derived from sino to hurt, and opts the eyes, from the pungency of the plant causing the eyes to water ; others from the Celtic nup (modern Gaelic neup) a turnip which belongs to this tribe. Our word "mustard" is derived from the French moutarde, but in early times it was, both here and on the Continent, sauve or senevi. Some authors assert that the etymology of this plant was changed from the following circumstance. In 13S2 Philip the Bold, Duke of Burgundy, was marching against his rebellious subjects of Ghent, and the city of Dijon, which traded largely in senevc, supplied him with a thousand men-at-arms, for whicli service HARDWICKE'S SCIENCE-GOSSIP. 37 the Duke granted that city many privileges, amongst others that of bearing his arms, with his motto ' l Moult me tarde" in old French (I long or wish ardently), which was carved on the principal gate of Dijon. By some accident the middle word was destroyed ; the other two, moult tarde, caused many a smile at the expense of the citizens, and in derision the seneve in which they traded was called mourtarde, a name it has preserved ever since. MICROSCOPY, ACTINO-CYCLUS BERKLEY!. — I have some speci- mens of this diatom, with reference to which I shall be glad if one of your correspondents will give me a little information. I should like to know, in the first place, whose nomenclature A. Berkley is; and, secondly, whether it is synonymous with any of the species described in the fourth edition of Pritchard's "Infusoria"; if not. where are the specific cha- racters to be found ? — C. V. S. Researches among the Sponges. — In the last number of the "Annals and Magazine of Natural History " there appear several important articles on the structure of various kinds of sponges. W. Saville Kent commences with one on " Professor Ernest Haeckel's group of the Physemaria, and on the affinity of the Sponges." W. J. Sollas describes two new and remarkable species of Cliona. There is also a paper by C. Mereschkowsky, on Wagnerella* a new genus of sponge allied to the Physemaria of Ilaeckel. Mounting Marine Alg.e. — Mr. H. F. Atwood, of Chicago, gives the following account of his method of mounting alga?, in the November number of the " American Journal of Microscopy." Mr. At- wood advocates the use of salicylic acid, and says — "My process is as follows: by using sea-salt (which can be bought for a trifle at any first-class druggist's) and distilled or rain water, a good sub- stitute for sea-water is obtained ; into this I im- merse the rough-dried specimens of alga?, and in an hour or two they have resumed their natural shape. Now, picking out and clipping off such pieces as are best adapted for mounting, I transfer them to a bowl of distilled water, and wash them clean, and from thence transfer them to a small saucer con- taining a saturated solution of salicylic acid. The shallow cell into which they now go is built up of shellac cement, made by dissolving bleached shellac in Cologne spirits. Cells made of this substance are ready for use twelve hours after being laid on to the slide. I pick up the specimen with forceps, put it on the slide, and fill up the cell with the salicylic acid. I now breathe on the covering glass, and put it in its place, and by the use of blotting-paper absorb the superfluous fluid. A thin coating of gold size com- pletes the work for the time being ; in a day or two I lay on more gold size, and afterwards white zinc cement or Brunswick black ; the finish, of course, being a mere matter of fancy. In mounting a piece of alga; having Isthmia parasitic on it, it is almost impossible to fill these diatoms if balsam is used, whereas by the use of salicylic acid every valve will be filled. In some cases the medium I have used has robbed the alga: of its colour, but this occurs but rarely. I have a slide of Ptilota hypnoides in full fruit, the beauty of which could never be brought out except by first immersing the specimen in the sea-water I have referred to. For the study of alga:, direct light should be used, but using dark field illumination is the best way." The Quekett Microscopical Club. — The last number of the Journal of this well-known and useful club contains an address by the President, Mr. Henry Lee, F.L.S., and a paper by Mr. W. K. Bridgman, on "The Ordinary Condenser Improved, or 'Cir- cular ' Illumination Superseded." Coloured Oysters. — The oysters of the cele- brated Arcachon beds having last summer acquired a peculiar violet colour, the cause has been inquired into by M. Desconst, who finds it was due to the exceeding abundance of the highly-coloured spores of a sea-weed {Rhytiphhva tinctoria). The colouring matter of these spores had been assimilated by the oysters, and retained by them, the extreme drought of the summer months having favoured the operation by reducing the water until it was not sufficient to dissolve the colouring matter. The Spore-producing Power of Fungi. — At a recent meeting of the Linnean Society, Mr. Worthington Smith exhibited drawings of Boletus subtome>itosus, and stated that in a specimen five inches in diameter, there are 17,000 pores, or tubes. Each pore when cut across shows 2,000 cells on the surface. The number of surface-cells on the under side of a specimen is 36,000,000. The cells in ar. entire plant are calculated at 615,000,000,000 ; and the number of spores produced by the same specimen are 5,000,000,000. Parasitic Alg.l. — Professor Percival Wright has described a new species of Chytridiacea' under the name of Rhizophydium Dicksonii. It was found parasitic in the cells of a sea-weed [Eetocarpus granu- losus), and it is believed that the so-called " utricular " fruits of Harvey, and the "spores" of Kiitzing, are, in the Eetocarpus at least, in reality parasitic Chrytridia. Carnivorous Slug. — No doubt the slug which your correspondent in the November number (p. 260) saw feeding on a worm was Testacella Mangel, of which a full and interesting description is given on page S9 of Science-Gossip for April, 1S67. — JV. R. Tate. HARDWICKE'S SCIENCE-GOSSIP. ZOOLOGY. The Popular Science Review commences the new year well. Besides a capital summary of scien- tific progress, and many well-written and very fair reviews, there are articles as follow: — "On some Armour-plated Fishes," by II. Woodward, F.R.S. ; "The Old and the New Chemistry," by M. M. Pattison Muir, F.R.S.E. ; "The Geological An- tiquity of Flowers," by J. E. Taylor, F.G.S. ; "Cloud Outlines," by Rev. S. Barber, F.M.S. ; "The Extinct British Wolf," by J. E. Harting, F.L.S., &c. New Australian Marsupial. — Professor Owen has recently described a new marsupial animal from Australia, under the name of Plcopus nudicaudatus. It is a small creature, allied to the Kangaroo-rats, but distinguished by having the type number of mammalian toes (five) on each of the hind feet. The Furniture Beetle. — F. Hughes cannot do better than rub the furniture affected by this pest with carbolic acid, and let the latter soak into the wood. He will see no more of the beetles after this treatment. — A. Smith. Glyciphagus palmifer. — I was staying for a few days at Christinas in a country house at Austrey, in Warwickshire, and one wet morning it struck me that I would brush the wall of the beer-cellar, and have a microscopical examination of the result. I was rewarded by finding a considerable number of the extraordinary mite Glyciphagus palmifer. — At the time of the publication of Mr. Murray's late work on theAptera (where this insect is figured) this remarkable species does not appear to have been known as an inhabitant of this country, although Mr. Murray anticipates that it may be one. Possibly, therefore, this may be the first instance of its capture here. — Albert D. Michael. The Beaked Whale. — In the last number of the Zoologist there is a capital description by Mr. Henry Lee, F.L.S., of the Beaked Whale, Hyperoodon rostratus, killed last September in the Menai Straits, and afterwards publicly exhibited at Bangor. This species is one of the Ziphioid Whales, an inter- mediate group between theCachelotsand the Porpoises and Dolphins ; and it is characterised by having its teeth reduced to a single rudimentary pair at the tip of the lower jaw. Mimicry in Insects. — At a recent meeting of the Entomological Society of London, Prof. Westwood gave an account of a remarkable Mantis (Gongylus gonegyloides) which mimics a flower, the deception being supposed to attract the insects upon which the Mantis feeds, to their destruction. Notes on rare Lf.pidoptera, &c. — Referring to Mr. Molony's note in October Science-Gossip, on the occurrence of C. Celerio on Aug. 29, Mr. Stainton, in the "Manual," gives October as the month for the perfect insect to appear, and Mr. Molony is, therefore, right in his statement of its being early in its appearance. It is a curious fact that though Colias Edusa has positively swarmed on the S.E. coast this summer, very few rare Helice have been taken, and its congener Hyale has not been seen there, but has occurred quite inland. Mr. S. Machin took (last August) a very fine specimen of C. Hyale'vsx a wood near Henley, Oxfordshire. Last yearl find among my specimens of Heterocera a fine one of Acronycta tridens, taken in Hillgrove-road, Avenue-road, N.W. The occurrence of this species near London, I believe, is unusual. September 13th, two specimens of Edusa seen in a street leading to the Hampstead-road (viz., Frederick-street), and I last saw it in Regent's Park, on September 15th. Since then it seems to have disappeared. It will be interesting to note if it ap- pears again this year on any fine, mild day. — R. T. Gibbons. Plants for Reptile Vivaria. — Probably the only plants which would succeed in a Reptile case are succulents, such as Sedums and small Semper- virjums. These, I know, will flourish ; but my slight experience tells me that it is better to consider plants as entirely secondary objects in a vivarium of any kind, and in Reptile cases to do without them alto- gether. I experience but little difficulty in the winter with respect to food. Mealworms can be obtained from the miller's, and kept in barley-meal as long as one pleases ; common earth-worms are also useful ; while, in order to secure flies during the winter months, I place fly-blown meat in a tightly-closed box, having bran at the bottom two or three inches deep. I place the box in an outhouse, and supply fresh meat twice a week, till the worms become chrysalides or gentles. Then I remove the box to the coldest part of the house, till flies are required, which I can obtain by taking a few of the gentles to a warm room for a day or two, so as to hasten the hatching process. Sometimes, however, the flies will hatch out, in spite of all precautions, in which case I keep the flies in the same box, and feed them with fruit and sugar and water. — IV. T. H. C. Trome. Badly-blown Eggs and Preserving Animals. — I should recommend " G. T. B." to try a solution of carbonate of soda for dissolving out the hardened contents of his egg-shells. He must take care to wash the inside of the egg well with clean water after using the carbonate of soda, and to prevent its coming in contact with the outside of the shell. "W. G." will find a chapter by Mr. Waterton on preserving insects for the cabinet, in the 1839 edition of his "Essays on Natural History," p. 72. Mr. Waterton also gives instructions for preserving birds' eggs, p. 65, but I should not recommend their adop- tion. In a chapter at the end of his celebrated HARD WICKE 'S SCIENCE- G OSS IP. 39 "Wanderings in South America" (1S25 edition), Mr. Waterton fully explains his mode of preserving birds ; the process is very tedious, but the result, as I can testify, is very beautiful. Both this process and that of preparing insects would be too long to give an account of here. — T. S. Preserving Animals.— The basis of Waterton's proceedings was the preservation of his specimens by the use of bichloride of mercury dissolved in alcohol. This hardens the skins and causes them to retain the shape in which they are placed when wet for any length of time : thus no wires are necessary. " W. G." will find the whole process most minutely described in "Waterton's Essays on Natural History," new edition, F. Warne& Co., price 7s. 6d. — W. B. R. Preserving Animals.— The late Mr. Waterton had a peculiar mode of his own of preserving animals, an account of which will be found in his life by Mr. Hobson. It is not, however, by any means, equal to the present mode by a skilful artist of setting up birds. If " W. G." wants a ready way, let him eviscerate a bird, place it in the position he wants, and then fill it with cotton soaked in carbolic acid dilute ; and the bird will be preserved for ages. This does not do, however, and is given up for the skinning process. — C. R. Bree, M.D. Later Appearance of the Hirundinid/E. — "R." will be interested to hear that I have in my possession the nest and one egg of Hirundo rustice {Chimney swallow), which was taken while the bird was sitting ; she having been duly watched when building in a cart-shed at Walton-on-the-Naze, in December, 1S66. See Field, January 12th, 1867. — C. R. Bree. M. D. Badly-blown Eggs.— Let " G. T. B." get Prof. Newton's little Essay upon blowing and preserving birds' eggs, which he can buy for a shilling or so, and he will get all the information he wants. — C. R. Bree, M.D. The " Midland Naturalist." — It is with much pleasure we welcome this new literary labourer into the field of popular science. Like the Scottish Natu- ralist (which relates chiefly to the Natural History of Scotland) and The Naturalist (the organ of the West Riding Natural History Societies), the Midland Naturalist purposes to give preference to local scientific information, and to chronicle the doings of the numerous energetic clubs and societies which are springing up in central England. Among these are the following : — Various societies in Birmingham, Burton, Caradoc, Dudley, Derbyshire, Leicester, Northampton, Nottingham, Rugby, Oswestry, Severn Valley, Shropshire, Stroud, Tamworth, &c. The first number of the Midland Naturalist appeared on January 1st, and appears with an attractively got-up cover designed by Worthington Smith. It con- tains well-written articles on Ferns, Meteorology, Zoology, and Geology. BOTANY, Further Notes on the Flora near Cader Idris. — Seeing from the "Botanical Notes in the Neighbourhood of Cader Idris," and also from another correspondent in the September number, that there are some of your readers interested in the plants of that neighbourhood, I should like to mention a few more to be found there, in addition to those already specified : — Saxifraga stellaris ; Melittis Me- lissophylhtm (bastard balm) ; Impatiens noli-me- tangere (yellow balsam) ; Ranunculus Lingtta (great spearwort) ; Sedum telephium ; Euonymus europaus (spindle tree) ; Asperula odorata (woodruff) ; Ruscus aculeatus (butcher's broom) ; Narthecium ossifragum (bog asphodel) ; Myrica Gale (bog myrtle) ; Lobelia Dort/nanna, found in Llynn Creigenau, and also in Llynn Cyri, another lovely little tarn not far off, nestling close in under the mountain. Nearer to the sea I found Eryngium maritimum (sea holly) ; Aster Tripolium (Michaelmas daisy)'; Statice Limonium (sea lavender) ; Crithum maritimum (samphire) ; Silenc maritima (sea campion) ; Rosa spinosissima (burnet- leaved rose) ; Tanacetum vulgare (tansy), found at Llangrwyll, a village four miles south of Arthog. Aspleuiuni maritimum grows on the cliffs between these two places ; and to the list of Ferns I can also add, having | found Asplenium viride and Hymcno- phyllum tunbridgense on the Llynn y Gader side of Cader Idris. These plants were found in the month of August, during a week's stay at Arthog, a village on the Dolgelly side of the estuaiy, nearly opposite to Barmouth ; and the district through which they range is included in walks the farthest point of which reaches Llynn Gader in one direction, and in another stretching along the coast three or four miles south of Arthog. — A. Warner. The Watford Natural History Society. — The eighth part of the " Transactions " of this vigorous society contains a capital paper by the Rev. George Henslow, F. L. S., on "The Fertiliza- tion of Plants," and another on "Instructions for taking Meteorological Observations," by William Marriott,iF.M.S. The Influence of Trees on Rainfall. — From observations by M. Fautrat, relative to the comparative influence of leafy woods and resinous woods on rain and the hygrometric state of the air, recently communicated to the Paris Academy, it appears that pine forests have a much greater influ- ence on the hygrometric state than others ; so that if the vapours dissolved in the air were apparent, like fogs, we should see forests shrouded in a large screen of moisture, and in the case of resinous woods the vapoury envelope would be more distinct than in that of leafy woods. M. Fautrat also shows that pines retain in their branches more than half of the water which is poured upon them, whereas leafy trees allow 4° RARDWICKE'S SCIENCE-GOSSIP. fifty-eight per cent, of the precipitated water to reach the surface of the ground. He suggests, therefore, that in planting with a view to oppose inundations, it would be advisable to choose by preference resinous trees, as offering a better covert. Gentiana acaulis in Wales. — As one of the correspondents who felt doubtful as to the occurrence of Gentiana acaulis on the Cader, may I be allowed to say the doubt has not been removed ? My personal authority about the Cader is of little use, since when, as a boy, I ascended it I was more fond of Lepidoptera than flowers, but I have a distinct impression of seeing a Gentiana there, but neither acaulis nor amarella, but campestris. I see this latter is included for Merioneth in "Topographical Botany," though Mr. Ley does not mention it in his list ; but as this list is principally of such plants as are not mentioned in " Topographical Botany," it does not follow that he failed to observe it. The habitat of campestris, as given in Hooker's "Student's Flora," is moist, especially hilly pastures, ascending to 2,400 feet in the Highlands. I have gathered it on Ben Lawers at i,Soo feet, where it is not at all uncommon on sub-Alpine slopes, and though campestris is very unlike acaulis, yet I would respectfully suggest if this might not be the gentian that was noticed ;* anyhow the discussion will probably lead to a more thorough search of the Cader shortly by some of your readers. — G. C. Druce. Worms in Flower-pots. — These can always be got rid of by watering the plants with a solution to which a tenth part of grated horse-chestnut has been added. Wild Cherry-tree {Primus avium). — As some notice has lately been taken of the size of this tree, I beg to report one as at present existing within a field of my farm, which presents the following proportions : — 2 feet from the ground, 21 feet circumference. 3 IJ 5) 15 )) 6 >, ,, 21 „ 10 „ „ I9' 6 12 feet up to the bifurcation of the branches. This grand tree was first shown me by my friend Mr. E. Lees, when it was in fruit. Since then the hurricane of the 14th October has swept away its principal arm. I figured it or. the 5th of November of the present year. — J.B., Bradford Abbas. British Marine Ai.o.l. — A correspondent of mine, resident in St. Helier's, Channel Islands, writes me that a short time since, a considerable number of the singular sea-weed Gigartina Teeaii, had there been washed ashore, some of the specimens very fine, and a few of them fertile ; this plant has not been discovered on any of the British shores for * I see the authority upon which acautis figured in Smith's Botany is that of Moris, de St. Amans, who found it near Haverford-w est, where, without doubt, it was a garden escape. upwards of fifty years. I have received a few of these specimens also from the French coast, and believe it to be tolerably abundant on the coast of Normandy, and southwards along the west shores. I last year visited Weymouth, and there on the sands picked up a few very interesting specimens of Gigar- tina pistillata in fruit, and also found two or three fronds in very bold form of Graceolaria compressa. From that town I proceeded to Bournemouth, and was there fortunate in discovering two specimens of Dasya pumicea, which appears to have been absent from our waters for some years. The shore of Torpoint, Plymouth, is very celebrated for receiving from its adjacent waters many very beautiful sea- weeds ; amongst its number I last year found in some abundance the very pretty weed Niliphyllum Tliy- sanorhizans, some of the specimens in fruit. I also found it in the same locality in the year 1S73, and in fruit, and the somewhat scarce plant Dudrisina dudri- snagra also came before me on the same shore. — //. G. AsrLENiUM Sei'TENTrioxale. — I can confirm what your correspondent, Mr. Belt, says as to Aspic- niton Septenttionale being found near Uolgelly ; my friend Mr. Rose, of Gorton, and I saw it growing there in the summer of 1874 (but sparingly), and we did not even bring a frond away. — T. Brittain. Solanum Dulcamara. — My impression, after reading a great many articles about this plant, is that the bulk of evidence points to the berries as being innocuous, or nearly so. In Pereira "Materia Medica " (edited by Bentley and Redwood), the following account of the properties of this plant is given: — -"Physiological Effects, not very obvious. It is reputed to operate as a diaphoretic, diuretic, and demulcent, and in overdoses as an acro-nar- cotic ; but many have given the fruit and prepara- tions of the young branches in very large doses, without any obvious effects." The dried young branches are used in medicine, and used very seldom in comparison with other medicines. I can practically say that it is very rarely prescribed in this neighbourhood, and why ? Because of its un- observed effects. The following is an extract from Bentley's "Botany": — "A fatal case of poisoning by the berries has occurred at Toulouse." Why do we not hear more of their toxicological effects, when so many of our damp hedges are so profusely adorned with their tempting berries? — William West, Bradford. GEOLOGY, Geology of Colorado and the Adjacent Territories. — We have received a copy of the I ninth annual report of the United States Geological I and Geographical Survey of the above country, in HARD JVICKE'S S CIENCE- G OSS I P. 4i which is contained a copious report of the progress of the exploration for the year 1875, written by Dr. F. V. Ilayden. The volume is attractive, although bulky, and is copiously illustrated by maps and sections. A zoological appendix furnishes us with the new discoveries concerning the wild animals and insects of the districts surveyed ; and this part is also abundantly illustrated with plates. The generosity of the United States Government in supplying foreign men of science with numerous copies of their scientific books is in strong contrast with the niggardliness with which our own Geological Survey publications are dribbled out. The Solitaire. — In the Annals and Magazine vf Natural History, Prof. Owen gives a lengthy de- scription of this extinct bird, based on the remains brought home from the island of Rodriguez during the Venus Transit expedition. The Solitaire {Pezophaps solitaria, Strkl.) was a huge ground-dove, about three feet long, whose wings gradually became aborted until it could no longer fly. The absence of any extirpating enemies (until man appeared), and the presence of abundant food, enabled the Solitaire to acquire its great size. The Geologists' Association. — Besides some well-written and profitable descriptions of several visits made by the members of this association to the Crag districts of Suffolk ; Grays, Essex ; Leices- tershire ; to Caterham, Godstone, Tilburstow, Nutfield, Hampstead, Guildford, and Derbyshire, the last two parts of their " Proceedings " contain papers by the Rev. J. F. Blake, on "The Restora- tion of Extinct Animals"; "On the Geology of Leicestershire," by W. J. Harrison, F.G. S. ; "On the Flints of the Chalk of Yorkshire," by J. H. Mortimer, F.G.S. ; on " The Forms of the Genus jlficraster," by C. Evans, F.G.S. ; the " Geology of the Eastern portion of the Banbury and Cheltenham Direct Railway," by T. Beesley, F.C.S., &c. " Fur-bearing Animals " is the title of a mono- graph by Dr. Elliott Coues on the North American MnstelidiE, and is published as one of the United States Geological Survey works. It gives a detailed account of the Wolverine, theMartens or Sables, Ermine, Minx, and various other kinds of Weasels ; of several species of Skunks, of the Badger, Sea-otter, Land-otter, and allies of these animals. This compact and handy volume is illustrated with sixty figures on twenty plates. It is published by the Government Printing Office, Washington, U.S. The Huge Fossil Bird from Sheppey. — At a recent meeting of the Geological Society of London, Prof. Owen described some remains of a large bird obtained by Mr. W. H. Shrubsole from the London Clay of Sheppey, consisting of parts of fractured humeri belonging to the right and left sides of the same species, or perhaps individual, and including the head of the bone, with portions of the upper and lower parts of the shaft. The texture of the shaft. the thinness of its bony wall, and the large size of the cavity, recall the characters of the wing-bones of the large Cretaceous Pterodactyles. The author indicated the characters which led him to regard the remains under consideration as those of a volant bird, most nearly approaching the genera Pelecanus and Dio- inedca ; and as the evidence derived from the cranium of Dasornis would indicate a bird too large to be up- borne by wings to which these bones might have be- longed, whilst the skull of Odontopteryx is far too small to have formed part of a bird with wings as large as those of the Albatross,— and Lit/iomisand Pelargornis are excluded by the characters of their remains, the author concluded that the bones obtained by Mr. Shrubsole furnished indications of a new genus and species of flying birds, for which he proposed the name of Argillornis longipennis. He regarded it as probably a long-winged natatorial bird, most nearly related to Diomedea, but considerably exceeding the Albatross {D. exulans) in size. Geological History of the Deer Family. — At the same meeting Prof. Boyd Dawkins gave an outline of the history of Deer during the Miocene and Pliocene periods. He said the majority of known antlers could be referred to two types, — an earlier or capreoline, and a later or axidine. In the Middle Miocene period the cervine antler consisted of a simply forked crown. In the Upper Miocene it had become more complex. In the Pliocene it had become still more complex and complicated ; and in this respect the development of antlers in time represented that in age of the same individual. The nearest living analogue of the Miocene Deer is, according to the antler, the Muntjak [Styloceros), now found only in the oriental region of Asia, along with the Tapir, which also coexisted with Ccrvits dicranoceros in the Miocene forests of Germany. The Pliocene Deer, again, are generally most nearly allied to the oriental Axis and Rusa Deer, the only exception being Ccn'us aisanus, the antlers of which resemble those of the Roe, an animal widely spread over Europe and Northern and Central Asia. The alliance of these Pliocene Deer with those now living in the Indian region is regarded by the author as a further proof of the warm climate of Europe in Miocene times, confirmatory of the conclusions arrived at by Saporta from the study of the vegetation. The Fossil Fungus. — In the December number of the Science-Gossip is a reprint of a paper on a fossil fungus, in which Mr. G. W. Smith is repre- sented as the discoverer. My knowledge of this particular fungus induces me to dispute his claim to its discovery. In the first place, the section from which he has sketched the figures to illustrate his paper came from my own cabinet. In the second place, I read a short paper before the Scientific 42 HARD WICKE 'S S CI EN CE-GO SSI P. Students' Association, Manchester, during the session of 1874-5, on tms f uri S us ) which was identified by one of the members of that society as Peronosporites. No record of this discovery was made at the time, except in the minutes of the Society. After reading the above paper, I put a section of this fungus (among other sections), in the hands of my friend, Mr. Young, for his own cabinet, and he casually showed it to Mr. Carruthers and Mr. Smith, which resulted in Mr. Smith's paper. This is one instance among many of the necessity of more permanent record being made in some leading journal of the work of our country societies. — John Butterworth, 'Goats Shaw, Oldham. NOTES AND QUERIES, British Snakes. — Is there any evidence of our English snake feeding upon birds or field-mice, or, indeed, anything but frogs and toads ? I have kept many snakes (Natrix torquata), and have only twice seen them consent to swallow toads, and that was during very hot weather, when their appetite was excited by the high temperature of a melon-frame, in which they were kept. Most snakes (I am now referring only to our native species) will prefer starving to death, according to my observation and that of many of my friends, to partaking of any other food than frogs, though it is said in many books that they will eat mice and birds.- — A. R. Venomous Reptiles of Ireland.— Can any reader of Science-Gossip give me information re- specting the venomous reptiles of Ireland? Having explored the counties of Dublin and Wicklow, I was much struck at never coming across any such reptile, although in so many spots where one would expect to find them — ruins, river-banks covered with thick undergrowth, and deeply-secluded dells. Can any reader inform me if this is the case throughout the isle, or how to account for the lack in these parts ? Has climate or soil anything to do with it (casting aside, of course, the popular legend of St. Kevin having banished them to Glendalough) ? — S. E. Bennett, St. Hildred's. Pertinacity of the Hawk. — On the'soth of September last I was staying with the family of Colonel C, and, while they were at church, a hawk flew into Mrs. C.'s bedroom, attracted by her bulfinch and her linnet, each sunning itself in a separate cage. How long the intruder kept these poor birds in agonizing terror no one can precisely state ; the maid, who first entered the room, chased the enemy away, and informed her lady of the un- welcome visitor. Mrs. C. rushed up-stairs to the cages of her pets, and found them both greatly dis- turbed : they approached her, and with eloquent eyes and various expressive gestures, made her under- stand how terribly they had been frightened by the appearance of a bird of prey. Nothing could prove this to a greater certainty than the loss of their feathers, which lay scattered in their cages. The bulfinch dropped nine feathers from his tail, and the linnet seven. These feathers were carefully wrapped up in silver paper and put into a box, as a memento of that Sunday. The wretched culprit flew to an op- posite tree, where he was watched by the stablemen, till they saw him fly again into the tempting room, evidently determined to make a good Sunday's meal of the plump little birds, but there the villain met with his due. Somebody disturbed him, out he flew, and, clumsily, like a burglar who is caught in the fact, knocked himself against the window, blooded it all over, and disappeared, to be seen no more. The hawk could not have got to these birds, the wires were so close. — E. A. I J'. Query as to Watercress. — The plant referred to by Chateaubriand is the great water-radish (Nas- turtium amphibiwn), a plant which increases rapidly by stolons. Sir James E. Smith ("English Flora," vol. iii. p. 195) writes : "This plant is noticed by the celebrated M. Chateaubriand in his account of England, for its wonderful powers of increase by the root. He observed it in the river near Beccles, where he long resided as an emigrant, and his rather florid description has excited wonder and curiosity in many who daily, perhaps, pass over, without regard, several no less interesting works of their Creator." I should doubt whether the peculiar method of progression described by M. Chateaubriand is the usual habit either of this or any other plant, and I have cer- tainly never observed it myself, though I have long been familiar with this species of cress ; nevertheless I have no doubt that M. Chateaubriand accurately related what he himself saw, as it is exactly what mio-ht very easily occur if the bottom were disturbed by an oar or punt-pole. — F. V. P. Caves in Somersetshire. — Can any readers of Science-Gossip give me any information as to the caves of Somersetshire, especially those of the Mendip range, in Barrington Combe ? On an elevated spot, known as Dolbury Camp, there is a curious inclosure of fallen stones and earthworks, in the centre of which is a' deep pit, of such a depth that one cannot from the mouth see the bottom. Can this have been a well for the garrison, or an artificial shaft for mining, or even a natural cave? Any information on this subject will be gratefully received, as I have ineffectually tried to gather explanation for some time past. — Somersu.'a. A Feline Nurse.— Calling at a farm-house the other day, I was told I was just a day too late to see a very wonderful sight — a cat nursing some little chicks. It appears the cat had a family of dead kittens a few days before, and the same morning some five or six chicks were hatched ; as there were others to come out, the lady of the house took the just hatched chicks into the house till all were hatched, and placed them before the fire in the sitting-room, or, as we say here, the "keeping room." Pussy, greatly to the horror of the good lady of the house, took a great fancy to them, and could not be kept away from them. Wishing to see what would take place, the owner allowed her to come near, when she began to stroke them down with her paw in the most affectionate and tender manner, and, after a while, lying down, gathered them well under her. There she lay all the day ; in the evening they were taken from her, but next day she did the same ; but the third day, fearful of accidents, they were taken away from her and put under their proper mother, who had now hatched out her whole brood. I wonder what pussy would have done with them. — Gobbs. Entomological and Botanical Localities. — Can any of your correspondents tell me exactly where the following places in Berks and Oxon are : _Shotover Hill, Winchwood Forest, Cowley, Combury Quarry, Sunninghill Wells, and Bagley Wood ? I have seen it mentioned that various HARDWICKE'S SCIENCE-GOSSIP. 43 insects and plants are to be found in these localities, and shall be obliged to any one who will give me the required information. — H. Morton. Nesting of Missel Thrush. — Can any reader of Science-Gossip tell me whether it is rare or not for the Missel Thrush ( Tardus viscivorits) to build its nest on the tops of walls ? I found a nest in May, 1S72, on the top of a wall, — it had four eggs in it, and the female was sitting on it ; and another in May, 1876. — Jas. Iugleby. Blackbird and Thrush. — About the middle of April, hunting round the garden, I found a nest nearly finished, which I thought belonged to a black- bird, though I could not catch sight of the female bird. Two days after, looking into the nest, I found four eggs, all just like a blackbird's, except that one egg had the deep claret markings of a thrush : the female being still very wary, had flown away before I could see her. Two or three days after I again visited the nest, and found that the bird sitting was a thrush ; she was then very tame, and, showing no signs of fear, let me watch her, standing within a few feet of her nest. The last week in April the eggs were hatched. I was unable to watch her again for about ten days, when, to my regret, I found that only one young bird remained ; the old bird was then very restless, flying round and round her nest, but never going more than ten yards from it, and uttering incessantly a single low plaintive note. I had then ample opportunity of watching her, aud can state with certainty that it was a song-thrush ( Tardus mitsicus). As soon as the young bird could fly at all, both the mother and her offspring disappeared. The blackbird was not nearly so assiduous in the welfare of the young one as its mate, and I cannot see why it should mate with a thrush when there are plenty of blackbirds all round us. — G. T. B. Blackbird or Thrush. — In the November num- ber of Science-Gossip I saw a notice, by "G. T. B.," of Blackbird and Thrush. I have taken, at several places, nests built like a blackbird's, but at the top of a high fir generally (while blackbirds build near the ground), containing eggs like a thrush's, but instead of black spots, a few pale reddish ones. The nests were lined with hay, not mud, as a thrush's, surrounded outside with coarse pieces of stick and bits of fir or grass. I have never seen the old birds, but I have named them in my cabinet as produced by the mat- ing of a blackbird and thrush. — S. S. B., Bradford Abbas. Birds' Eggs. — In your number for September last a correspondent gives a few reasons for " birdnesting," which I think are open to the following objections. To take them in order : — 1. Is it necessary that, to obtain a knowledge of the situation and materials of a bird's nest, the eggs need be taken ? Would not a note, made on the spot, of the nest, its contents, position, &c, without disturbing the eggs, be more to the point ? 2. With respect to the many people who take their only knowledge of ornithology from the robbing of nests, I may venture to assert that, as far as my knowledge goes, three out of four such collectors take little or no interest in the birds them- selves ; in some cases not even in the nest, the eggs being all they look or care for. And of how much value to science is the knowledge they thus acquire ? 3. There is certainly a great difference between taking the eggs of domestic poultry and those of wild birds, for in the former, domestication seems to have almost eradicated their natural feelings (though even in them there is some trace left, as is shown by their some- times concealing their eggs as much as possible, laying in out-of-the-way holes and comers), but thai pain is thus given to wild birds, there can be no doubt, after one has heard the painful twitter of the parent-bird whose nest is disturbed. 4. That the taking of their eggs is necessary to keep the com- moner species within bounds, I fail to see. In the first place, if there were any fear of their becoming too numerous, why should an Act of Parliament have been passed to check this "practice"? On the other hand, is there not a fear of causing the rarer species to become extinct, for it is on them that the brunt of this "practice " falls ? How many are there, even of those who call themselves collectors, or oologists, who only take what rare eggs they really require for their own cabinets? How many resist the temptation to take all the very rare ones they find, when they are so easily exchanged, or when a friend would ■ be so pleased to accept them ? Of course there are some who do, but I am afraid they are sadly outnumbered by those who do not, as reference to your Exchange column any month will show. But those of the commoner kinds are neither saleable nor exchangeable, and therefore remain comparatively unmolested, except by the veritable nest-robber ; and the rarer a bird becomes, the more are its eggs sought after. Another of your correspondents reminds Mr. Van Dyck that there is a law which prevents the shooting of many birds during the time of their stay with us. May I be allowed to remind him that there is also another, to prevent the robbing of their nests ? As to the "fond remembrances of bygone days" on which he lays such stress, could not they be brought to the mind just as vividly by looking through the note-book, the companion of such rambles (he accuses Mr. Van Dyck of a crib : may I ask him if he has not read the paper on " Birds' Egg> " in " Notes On Collecting and Preserving Natural History Objects"?), and would not the pleasure of searching out the nest be rather heightened than otherwise by leaving the eggs ; for he is hard-hearted indeed in whom the plaintive notes of the mother-bird raise no touch of feeling akin to remorse ? Then we are told that alter a "few years' " earnest collecting (it would be interesting to know how many eggs are usually destroyed in a few such years) most "collectors" are able to give "not only the name of the bird," but an account of its habits, &c, with a "number of interesting facts " ; but, as before mentioned, I fail to see that it is at all necessary to rob the nest of its eggs to obtain a knowledge of these "interesting facts, " and if it were, to use a French expression, is " the game worth the candle" ? In short, I do not see that in ninety cases out of a hundred any object is gained by breaking the laws of the land in this particular, and cordially agree with the Editor in wishing that all Natural History societies would follow the good example set by the Woolhope Club. — L. W. G. Singular Affection of a Hen. — We had a hen, of the barndoor or common fowl breed, say about two years old, which we purchased, with another from the same brood, from a farmer in this neighbourhood some months ago. It was observed that the hen's eyesight was dim when we first had her, but after a few weeks the sight seemed to leave her altogether, and of course total blindness followed. The fowl was fed by placing her food immediately under or close to her, and she picked up sufficient to sustain life. The other fowls seemed to take excep- tion at the blind hen's company, and each one, with one exception, constantly attacked her. The curious part of the thing was, that the sister of the blind 44 HARDWICKE'S SCIENCE-GOSSIP. hen (previously mentioned) had chickens, and as soon as she returned at night with her young brood (four), the blind hen was called by the sister, and shared the pro- tection with the little chicks, i.e. under the wing of their mother. This continued for two or three weeks, or until some ten days ago, when a carrion crow, while making a predatory visit to the precincts of the farm, observed the helpless condition of our blind pet, and made an attack upon her, and before any assistance could be rendered, killed and devoured nearly the whole of the body. We, as you may imagine, were full of sorrow for our loss. — P. Donaldson, Goytrey, Monmouthshire. "Fairy-flax." — In the September number of Science-Gossip, No. 153, p. 194, Mr. Robert Hol- land speaks of the amazing undergrowth of fairy-flax. What plant is known under this name ? — E. L. R. Predatory Slug.— This may have been Testacella haliotoidea, a species known to live on earthworms ; but usually subterranean in its habits. It may easily be distinguished from the common slugs by the following characters : the body increases in size like that of a leech, from the head to the posterior end, which terminates abruptly ; and bears a small external shell ; it is very tough, and of a yellow-grey colour, with grooved lines along the side of the body. The common slugs, Limax and Avion, are, however, not only carnivorous, but cannibals. After slaughtering one of these garden pests, I have often found in the evening two or three more feasting on the body of their late comrade. Slugs and snails, as Mr. Slater remarks, seem to be unaffected by vegetable poisons ; indeed, the poisonous Solanacece, as Atropa Bella- donna, seem specially attractive to them. This, however, is less remarkable when we remember that the rabbit, an animal much higher in the scale of life than the snail, can eat any quantity of Belladonna with impunity. — H. F. Parsons. Is THE LEMMING rOUNI) IN ENGLAND ? — Is it not very likely that the holes referred to, under this heading in Science-Gossip, No. 152, p. 189, were made by the common Shrew (Sorex araneus, Bell), which it is well known makes large superficial burrows in the earth ? The fact of its being on such high ground is probably accounted for by the increase of its great enemy, man, in the valleys below. The size of their burrows would be about an inch in diameter. — S. T. Fructification of Sycamore (No. 155, p. 257). — Mr. W. E. Green has, I think, scarcely appreciated my difficulty in accounting for the increased number of winged seeds in so many sycamore fruits. With us in the north, although sycamores, hollies, nuts, and some few other trees and shrubs have produced large quantities of fruit, it has decidedly been an unfruitful year. We have had no apples, pears, or plums, and very few cherries ; no acorns, very few ash-keys, and scarcely any haws ; therefore, I do not think the phenomenon can be accounted for by supposing that the season has been a particularly fruitful one, which really means that the weather was suitable, or the insects numerous enough during flower-time for the fertilization of existing germs, or sunny enough for the full and perfect development of fertilized germs. If sycamore flowers usually contained several pistils, one only, as in the Nut, coming to maturity, or even the rudiments of several pistils, one could readily understand that congenial weather might cause those already existing, though rudimentary organs, to be developed and to reach maturity ; but this is not the case. The flower of the sycamore does not contain, under ordinary circumstances, even the rudiments of several pistils. No doubt, as Mr. Green suggests, an unusually mild winter might cause great changes in the growth of plants, but the tendency of a mild win- ter is to produce rather a scanty crop, partly by the blossom opening too soon, and partly by the time of rest for the tree not being sufficiently prolonged ; and I suspect the cause is more remote. The weather of the present year could hardly have caused the forma- tion of new organs ; the mildness of last winter may have had some peculiar effect, but it is perhaps more probable, if weather has had anything to do with it, that there was some specially congenial weather dur- i ing the summer or autumn of 1876 which induced such a complete ripening of the wood that it caused the sycamore-trees to start with unusual vigour in the spring of this year, and that organs were thereby pro- I duced which, had the trees been somewhat less vigorous, would have been entirely suppressed. — Robert Holland, Norton Hill, Runcorn. The Tyrian Dye. — Your correspondent " B." (see No. 155, p. 260) is evidently unaware that this celebrated dye was of a crimson hue, or he would not 1 have imagined that it might have been extracted from Leptoclinium punctatum, "because when put into I water, it (Z. pnncta/itm) stained the water of a blue colour." The word purpureas, whence the English purple, signifies "bright red," as Digitalis purpurea, j the Foxglove. The present corrupt use of the word ; purple to signify a shade of blue is quite recent. Has " B." never read Izaak Walton's lines on fishing, in . which he mentions the common perch, with its " fins of Tyrian dye"?— W. R. Tate, Blandford, Dorset. A Curiosity .—I have in my possession a Hindoo or Burmese sword-handle made from an elephant's tusk, on which, after the Eastern fashion, many quaint and curious figures are carved: men with grotesque and hideous faces disfigured with elephants' trunks, crocodiles' mouths, monkeys' heads, and the like. Among these forms, but separated from the rest, is carved a tiger or bear, I am not sure which, but think the latter : in its mouth it holds a fish. Now, I should very much like to ascertain if this has been carved among its fellow-anomalies as a prodigy that has been said to have existed, but which the executor, desiring to ridicule, placed among his monstrosities. South American travellers of good repute tell tales of the common jaguar (Leopardus Onca) hanging over the banks of streams, and catching the unwary fish that chance to pass by. Is it on record that any member of the Felidre or Isabella; of the old world ever performed the same feat ? — Daccart Aikone. Sudden Change in Colour of the Human Hair. — " Is it possible for a person's hair to turn white in a short time ? " There are so many instances now on record, that there ought to be no longer any doubt upon the subject. In the late Arctic expedition nearly every man's hair became greyer, and in some cases white, but assumed its natural colour when the men returned to lower latitudes. In many cases the human hair is said to have turned grey from grief, extreme care, or sudden fright. My experience is very small, but nevertheless may be interesting to some of the readers of Science-Gossip. During an outward passage to Australia, the ship I was in suffered greatly in the British Channel ; twice we were nearly wrecked, having lost three anchors and two cables. The pilot who had charge was con- stantly on watch, only snatching a few minutes' sleep here and there, as opportunity afforded. On the whole, he had a very anxious time indeed, and when he eventually left the ship off the Isle of Wight he HARD WICKE 'S S CIENCE ■ G OS SI P. 45 certainly looked twenty years older. I thought his hair had decidedly turned greyer : this may, however, have been only imagination, and therefore ought rather to be considered as an impression than actual fact. Within the last few months a fresh case of the possi- bility of the colour of hair changing has come under my notice. An old gentleman, aged eighty-nine, residing in my immediate neighbourhood, lately died. For many years his hair had been perfectly white, but a few days before his death some of his hair became black, giving the appearance of his having dark brown or black hair. Here it is interesting to note that in his younger days his hair was light. After the death of this gentleman the tips of the hair for about an inch assumed the original colour, becoming white again. Has a similar case fallen under the notice of any of your readers ? I have heard of another instance, where after death the hair turned from white to black. Dogs seem to be affected with regard to their hair in like manner as human beings. I lately read of a case where a black Newfoundland dog became grey in a few weeks ; and the writer declares that the only cause for this sudden change was grief. — C. P. Ogilvic. Mistletoe, Apple, and Pear. — Does not the fact mentioned by Mr. C. H. Westley, that mistletoe does not grow commonly, if at all, on the pear, open up some interesting questions ? I believe I am correct in saying that, though the apple and the pear can each of them be grafted on a variety of stocks, amongst others on some but remotely related to them, neither can be grafted on the other. The growth of the mistletoe is a kind of natural grafting, and occurs on trees belonging to several widely different orders ; yet it seems to be confined to one of these two allied species. May there not be some underlying physio- logical identity between the various possible stocks, some physiological difference between apple and pear ? Has any one ever attempted to graft apple or soecies ther on mistletoe? Will mistletoe grow on all stocks used for apples, or on any used for pears ? — G. S. Bo i tiger. Mistletoe. — Bentley mentions Viscum album as parasitic on thorns and willows ? Can your readers tell me whether it is commonly found on these ? also whether Primus spinosa is the plant meant by thorns ?— J. J. W. S. Watercresses. — The following extract may per- haps be of interest to some of your readers. At the meeting of the Royal Horticultural Society on Tuesday, Mr. Shirley Hibberd, of Stoke Newington, presented a dozen pans of watercresses, grown in the manner he has practised for some years past. One of the advantages of this system is, that the plants are under complete control to be placed in the sun or the shade, or during winter in heated plant-houses, and can at all times be supplied with pure water, and thus be preserved from contamination by the pollu- tions common to rivers, and even to watercress-beds. The pans in which they are grown measure from 1 5 inches to 20 inches across, and from 6 inches to 9 inches deep. They are filled with rich loamy soil, intermixed with lumps of chalk or old mortar, and then very small cuttings are inserted. These soon become strong plants, and in from fifteen to twenty days may be gathered from, the cresses being tender and delicate in flavour, and of the most beau- tiful appearance. The twelve plants shown have been regularlvcut for the table for a period of six weeks, and their fresh and robust appearance indicated that gatherings might be had from them for another six weeks without their being exhausted. The sorts shown were die Erfurt sweet green cress, the Springhead brown cress, and the Stoke Newington purple cress. The adjudicators signified their approval of this mode of cultivation by the award of a medal to Mr. Hibberd. — H. Budge. Query respecting Sea Anemones. — Will a correspondent kindly give a little information respect- ing Sea Anemones : should they be fed, and if so, how often, and about in what quantity ? — W. T. H. C. Trome. Swans and Rats. — Some time since I noticed some rats had taken possession of a hollow tree grow- ing by the side of my mill dam, and not wishing to retain them there as tenants, I suggested to one of my servants the propriety of serving them with "notice to quit," and to this end I enlisted the ser- vices of a ferret. Very soon two or three of the family leaped into the water. A pair of swans were close by watching our movements, and no sooner did the rats attempt to swim across the dam, than the swans at once gave chase to the enemy ; more than once they seized the rats and threw them above the water, and as often as they raised their heads, the swans, regardless of the presence of spectators, pursued their enemy to their bitter end, and by frequently pecking at them eventually succeeded in drowning them, as was proved by the dead bodies floating down to the mill ruck a few minutes after the battle. — R. Cooke, G Ian ford- Mill, Norfolk. Spectral Phenomena. — Two curious phenomena have lately come to my knowledge in conversation with friends who were eye-witnesses of them. Perhaps some of your readers may be interested enough to endeavour to throw some light upon them. A gentleman was parting with a friend on Hampstead Heath, one night about eight years ago, the moon and stars shining, when they both observed what appeared like three bright bars stretching across the sky about midway between the zenith and horizon towards the west, and apparently also twenty or thirty yards in length, and remaining so for over half an hour. A lady walking along the Euston road when the sun was shining brightly, saw in the air before her a gigantic semaphore. Upon reaching one of the stations of the Metropolitan Railway, a real sema- phore was noticed to correspond in position with the spectre. — A'. II. A. B. The Lunar Bow. — I observed this remarkable phenomenon on November 22nd under very favour- able circumstances. At about 8.25 p.m. the moon was shining very brightly, and on looking towards the western sky, I perceived a faintly-coloured bow spanning the heavens and extending some distance across the distant landscape. The colours were pale and indistinct, but the general form of the bow was very definitely marked. — George Clinch, West Wick- ham, Kent. Lapwing and Sparrow-hawk. — I am not much surprised at the communication of J. C. Stephens, No. 155, p. 262, in which he states that he " observed a lapwing or peewit pursuing a sparrow-hawk." I believe that, under certain circumstances, that bird will attack, or at least chase and attempt to frighten, any bird whatever that approaches the ground where it has taken up its abode. As a proof of this I will mention what came under my own observation during the past spring. In a field of about twelve acres in extent adjoining my residence, two lapwings took up their abode. There are some rookeries at a short distance from this, and on several occasions the colonies came into this and the adjoining fields to 4 6 HARD WICKE 'S S CIENCE - G O SSIP. forage. For some time the lapwings paid little attention to the crows, but ultimately the female commenced to hatch her eggs, and then a real warfare began with the male. No sooner did the crows, generally two or three hundred, alight in the field where the female was sitting, than the male com- menced a most determined attack on them. It darted towards them with the rapidity and vigour of a hawk, but evidently with the sole intention of banishing th cm from the field, as I could never notice that it came actually in contact with them, but always so near as to render them uncomfortable. Those who have observed a lapwing under these conditions will be aware of the peculiarly loud noise that it has the power of producing with its wings, and this, no doubt, has its effect upon the birds that approach its domain. This was the case in the present instance. Not a moment's quietude was allowed the crows until the whole colony was banished from the field, and they were obliged to betake themselves to the neighbouring grounds, where they could follow their occupation in peace. Not more than a few minutes elapsed until the lapwing had cleared the field of the intruders. T witnessed cases of this kind repeatedly, and always with the same effect. This faithful sentinel of its mate would allow no bird whatever to enter this field without attempting to banish it. These attacks of the lapwing were not confined to birds alone, but also to human beings. If any person happened to pass through this field, and more especially when near the nest of the female, the male immediately darted past him on all sides, and so contiguous that it might almost be touched, making the peculiarly loud noise with its wings. Thus it continued without inter- mission until the intruder had left the field. On one occasion I was greatly amused with a crow that it took prisoner. The crow alighted in the field near a tree, but the moment it did so the lapwing commenced its usual attack by darting close past it (on no occa- sion did I see it come fairly in contact with the intruder), and the crow to avoid it took refuge in the tree. The lapwing then soared away for a short distance, but never out of sight of the crow, and the latter, no doubt thinking that its enemy had dis- appeared, left the tree and again began to forage in the field. But this was only momentary. The lap- wing was quite aware of the fact, and down again it pounced on the crow, which, as before, took shelter in the tree. This state of things continued more than a dozen times, until at last the crow, finding that neither peace nor profit could be obtained there, con- trived to steal from the tree, and took its departure to some other locality, where it might forage in peace and quietness. The courageous and faithful guardian, however, at last came to an untimely end. I did not witness this myself, but was told by a game-watcher who did, and therefore cannot say whether the hawk which killed it did so without provocation, or that the latter had been annoyed by the usual attack of the lapwing to banish it from the field. However, the lapwing was struck to the ground by the hawk, and the game- watcher, thinking that he might be able to save its life, went to its rescue with all speed, but on reaching it found that the hawk had torn its head off. Since that time I have never seen the female, nor any ofitsyoung — if it succeeded in hatching them, — and the crows may now be seen daily foraging in the field without interruption. — Dipton Burn. The Betularia and its Varieties. — In the month of June, 1874, I was proceeding on the out- side of an omnibus from Middleton to Manchester in company with a brother entomologist, when I thought I observed a large specimen of the Betularia in a plantation in the neighbourhood of Heaton Park, on the left-hand side of the high road. The driver of the 'bus, noting my anxiety to capture the specimen, very kindly promised to proceed slowly for a short distance, so as to give me an opportunity of seeing whether my impressions were right or not with regard to what I had seen. I soon reached the plan- tation, near the entrance to which, to my great joy and surprise, I found a large female Betularia of the buff variety on a tree, in conjunction with a black male. I picked them off the tree and returned to the 'bus, several of the passengers being astonished when I told them the value of my prize. Not being prepared with a box at the time, I allowed my captures to creep on my clothes, but after we had gone some distance I set the black one free, to the evident sur- prise of the passengers, who seemed to think that the more valuable of the two. However, on arriving at Cheetham Hill, my entomological friend procured a large-sized pill-box, and into this I placed the buft specimen. We proceeded to Belle-Vue Gardens, to spend the afternoon, though I will confess that the pleasure I experienced there received additional zest from the discovery and capture I had made during the afternoon. On arriving home I was sorry to find the specimen in a somewhat sorry condition, the box in which I had confined it having been rather too small. Fortunately I succeeded in restoring it, and I afterwards reared about 120 specimens, but, singular to say, and to my great disappointment, the buff variety did not make its appearance. At this time a friend of mine had some of the black variety, and he was kind enough to give me a few ; so I crossed them, but with the same result. Still I had faith that they must have some of their parent's buff qualities in them, and I made another attempt to breed them. The result, I am glad to say, was very gratifying indeed. On the 4th of December last I placed about fifty of the pupa? in a box ; for, being very eager to see the buff variety come forth, I resolved to try what artificial means would do. Impelled by curiosity, I, on the 4th of January this year, took a peep into the box, when, to my great delight, I found that one of the buff variety had emerged from the pupa. I followed up my success, and have succeeded in obtaining about one buff one out of twenty of the whole brood, some of them being all buff, and others very variable, both in their colour and markings. The foregoing information, therefore, makes me feel confident of having established two distinct varieties of Betularia from a domestic point of view, and possibly what I have stated may be of value to entomology, and to those who love the science. — Thomas Lomas. A Fight with an Eagle. — The Dagbladet, a Danish newspaper, for July 10th, 1S76, gives the following account of a rare incident which occurred on the previous Wednesday evening upon Rovling Heath, in the district of Aalborg, Jutland. Two girls, eight and twelve years of age, having been sent by their parents to fetch home the cows from the heath, were attacked, while returning, by a very large eagle, which made several attempts to swoop down, but was deterred by the elder girl swinging a tethering mallet over her bead till she could procure some stones ; these she hurled against her powerful antagonist, and was at last so fortunate as to strike it with such effect that it fell dead. It measured from tip to tip of its extended wings, six feet eight inches (3} alen), and weighed about ten pounds (9 pund). Its largest claws were from an inch and a half to two inches long ; its colour was intermingled grey and white. — J. Wager. HARD WICKE 'S S CIENCE- G OS SIP. 47 Colias Edusa and its Varieties. — At the time my few notes on this interesting butterfly were written, which appeared in Science-Gossip, No. 156, p. 280, I considered myself fortunate in secur- ing two of the white varieties, having collected thirteen or fourteen years, and being obliged till this year to put up with one tattered English and a foreign representative. Since then, however, my brother and I have captured forty-five Helice, forty of which were taken in one field close to this town. The specimens exhibit much variety in colour, some being a rich cream and primrose, others a greenish white ; in the size of the marginal spots there is also great difference ; in some they are reduced to a minimum. — Joseph Anderson, Junior, Chichester. Destroying Mites. — Your correspondent, "A. F." will, I think, find no difficulty in ridding his collection of mites, if he will adopt the following plan, which I have never known to fail. It is simply to dip a camel-hair brush into benzine, and let the fluid fall upon the insect drop by drop until it is completely saturated ; the little heaps of dust which usually betokens the presence of mites underneath the specimens can be wiped up with the brush. On account of the extremely volatile nature of benzine, it is not of much use as a preventive for this purpose ; it is better to employ plenty of camphor, or cotton wool soaked with a solution of carbolic acid. With even ordinary care mites need never be permitted to do any serious mischief, and no better piece of advice for their prevention can be given than that by Dr. Knaggs, to put into quarantine every insect we receive. — Joseph Anderson, Junior, Chichester. Destroying Mites. — Many years since I left two cabinets of lepidoptera in the country for some twelve months, and on bringing them home found the bodies ■of many of the specimens eaten, and the mites travel- ling over the drawers in large numbers. I made a saturated solution of camphor in rectified spirit of wine, poured about a teaspoonful in one corner of each drawer, and by tilting, caused the liquid to flow round the angles ; I then closed the cabinets, and on opening them a few days after found all life extinct. If "A. F." has not a compartment in each drawer for camphor, he should procure some muslin bags about two inches by one inch and a quarter, put a lump of cam- phor in each, and fix one in a corner of every drawer by a pin at both ends, renewing the camphor as often as it evaporates. By this means he may preserve his collection from injury by mites for any period. — D. S. The Sun and the Earth. — I have the following figures before me of the distance between us and the sun. Taking Guyot's mean diameter of the earth, giving a radius of 3,938 miles — Laplace gives a distance of miles = 92, 636,990 The Quarterly Review, July, 1875, note, p. 209 =91,000,000 The Academy, 20th October, 1877, P- 389 =93,000,000 The Mail, 19th December, 1877, in a letter from Mr. Proctor { Tupman =93,321,000 ( Newcomb =92,393,000 Mr. Proctor suggests that this measure is un- trustworthy, as long as we get warmth and light, the actual distance of the sun is of little consequence ; but what are the precise sciences to do ? Newcomb and Laplace are as near the mark as we can hope for ; but how is it that the precise sciences reach their conclusion as to the size of this world from the Nebular hypothesis of Laplace, without adopting his measure of distance between the earth and the sun ? I find the figures for Laplace in his translation by J. Pond, p. 24, 1809. Will some one kindly tell us which distance is right ? — //. P. M. Reasoning Power of Dogs. — Having witnessed the following occurrence some years ago, I could not help being struck with the great reasoning powers displayed by a dog. I lived in the town of N , and the back of our terrace had small gardens, sepa- rated from each other by a short fence. One windy morning the clothes were drying on the line, and the dog (a fine retriever) was sporting itself on the grass, when a sudden gust blew the "things" on the ground ; the dog at once ran into the house, and by sundry barks and pulls at her dress, induced the girl to go into the garden, where she discovered the cause of the dog's uneasiness. The next day being the "week's wash" of our neighbour, the clothes were airing in the garden, when our dog rushed into the house, and presently brought out the servant, who found that the prop had given way, and the " wash " was all on the ground. — J. D. Superstitious Dislike to the Wren {Troglo- dytes Europa-us). — This little bird, though generally a favourite, is in some rural districts regarded by the uneducated with the bitterest aversion, while its rela- tive, the Redbreast, is considered sacred from all molestation. So deeply seated is this hatred to the Wren, that its nest is often ruthlessly torn away, and both nest and its contents trampled under foot. The only explanation which these good folks will vouchsafe, is that the " wran" is the devil's bird, and should therefore get no quarter. This strange superstition has, I believe, had its origin in one of the many myths which have been handed down from generation to generation, and received as truth be- yond question. The legendary account of how the Robin got her red-breast is widely spread, both in Ireland and England, and no one in this country will molest the "poor robin," because his name is asso- ciated with our Lord ; but the Wren has the mis- fortune of being associated with the sacred history in an unfavourable light : hence the odium which hangs around him. In the south of Ireland it appears this unkindly feeling does not exist, which is shown by a curious practice which existed at no veiy distant date in Cork. On St. Stephen's day a number of young men, in holiday dress, paraded the city, carrying a furze-bush, in which a wren was secured. As they stopped before the house, one of their number recited the following lines — " The wren, the wren, the king of all birds, Was caught St. Stephen's day in the furze ; Although he's little, his family's great, Then pray, kind gentle folks, give him a trate." It is to be hoped that this cruel and unmeaning dislike to a little bird of which poets have so sweetly sung, and naturalists so interestingly written, may ; ere long be swept away by advancing education. — ' H. Allingham, Ballyshannon. Harebell ( Campanula rotundifolia). — The English ^ name, we are told, was bestowed upon it because it ' grows in the dry and hilly pastures frequented by the hare, but we would suggest, at least, an alternative derivation — or rather the plant itself suggests it — as to whether it may not have originally been named hair bell from the extremely light and delicate stems from which the blossoms hang. Another plant, equally light and delicate, is named the maiden-hair. I have extracted the above from p. 78, part 10, of " Familiar Wild Flowers," to which I refer Mr. Tate for an interesting article on the plant. — T. 48 HA RD WICKE 'S S CIENCE ■ G SSI P. NOTICES TO CORRESPONDENTS. To Correspondents and Exchangers. — As we now publish Science-Gossip at least a week earlier than hereto- fore, we cannot possibly insert in the following number any communications which reach us later than the 9th of the previous month. Fresh Chara. — A correspondent asks our good offices to obtain for him "a little fresh Chara." Will our botanical friends, who can obtain it, send us a small supply ? W. Patrick. — You can purchase Anodotis of R. Damon, F.G.S., Weymouth. A. F. Fischer. — You cannot do better than preserve the chrysalis in the earth of a flower-pot. Put the latter out of doors. It will soon cease " wriggling." Out of doors is their natural condition of hybernation. W. H. Legge.— The caterpillar of which you sent us a coloured drawing, is that of the well-known Pale Tussock-moth. The caterpillar goes by the name of the " Hop-dog" (prgyia jntdibvnda). Y.. M. (baddleworth).- — The specimens sent us from the turf- pits are flint chips, and seem to us to be the result of human handiwork. This appears all the more probable from the fact that flint is a very rare mineral, even in the drift beds, in your district. Can you send us some larger specimens for inspection ? W. H. S. (Colchester). — We shall feel obliged if you will send us some of the insects which demolish the " black beetles," as we cannot identify them from your description. W. S. Wakefield. — The plant sent us is Veronica Hen- dersonii. F. Coleman. — We have heard of no other instance of non- fulfilment except your own. J. A. Sandkokd (Ohio). — Accept our thanks for specimens of AJ>ocy>ium androsamiifolnim, C. W. H. — There is no fear whatever of the ants doing your Deodaras any harm. Colonel M. — You had best have Science-Gossip sent to you direct from the publishers. The small crystals are car- bonate of lime, F. R. B. — We cannot, of course, tell you the name of the species of mussel without seeing specimens. But there is no doubt that the deposit in question is a post-glacial one, of the same age as our raised beeches. F. Q. — You had best consult Whitaker's "Geology of the London Basin," published by Her Majesty's Stationery Office, for details of and references to the various sections of the Woolwich beds exhibited in the neighbourhood of London. S. C. M. — Sach's " Botany," translated and edited by A. W. Bennett and Professor Dyer, and published by the Clarendon Press, gives the best account of the laws of vegetable growth and development. A. M. (Wandsworth). — The crustacean, of which you sent us a drawing is Idotca tricuspidata. J. Ransom.— We have no doubt that Mr. Bartlett, the Superintendent of the Zoological Gardens, would give you all the necessary information respecting the management of Marmosets. T. C. M.— -We have referred to the MS. of your " Exchange " in the January number, and find that we printed it exactly as you wrote it ! R. T. Andrews. — The "glass-like substance" you sent us is Selenite, or crystallized sulphate of lime ; very likely from the London Clay formation. J. Cunnack. — Your written description of the Hawk answers best to that of the common Buzzard (Puteo vulgaris). W. K. and Others. — Your specimens have been forwarded to competent authorities to be named, and their names will appear in these columns as soon as we have received them. E. R. F. — Potton, in Bedfordshire, is situated on the Lower Greensand formation, and the fossils you mention are, no doubt, from that deposit. W. B. wishes for the address of the South London Ento- mological Society, as it has removed from its old quarters. We shall always be glad to chronicle such changes of removal. C. Harris. — Many thanks for the specimens, which are very interesting. But we cannot undertake to name zoophytes from the Cape of Good Hope, or any other place where the fauna has not been scientifically worked and described. EXCHANGES. Wanted, British examples of I'ertigo angustior, V. alpes- tris, and Acme lineata. Will give a liberal exchange in American land and freshwater shells. — G. Sherriff Tye, 62, Villa-road, Handsworth, Staffordshire. Wanted, Microscopical Dictionary (old or new edition), in exchange for foreign insects, chiefly parasites, mounted or unmounted. — Address, M., Anglesea Lodge, Godalming, Surrey. I would like to exchange U.S. Coleoptera for British or Foreign. Eggs in exchange for Coleoptera, if desired. — Address, Geo. J. Angell, 64, Elliott-place, Brooklyn, New York, U.S. Wanted, Fresh specimens of any Cuttlefish or Squids. Offered in exchange, shells, insects, microscopic slides, scien- tific books, or money. — W. Cash, 38, Elmficld-terrace, Halifax. A Few well-mounted micro slides to exchange — Lists to T. Shripton, The Terrace, Chesterfield. Many species of British marine, land, and freshwater shells — offered in exchange for land shells from New Zealand, South America, Madagascar, and South Australia. — F. M. Hele, Fairlight, Elmgrove-road, Cotham, Bristol. For unmounted or mounted diatoms will be sent some cleaned diatom Coccones Placentula, or Foraminifera from Spain : also, river mud from Lagos, for any object of interest for microscope.— A. Smith, 198, Essex-road, London. For Tripoli, composed of diatoms, send well-mounted slide in exchange. In exchange for any other mounted objects: Proboscis of Blow-fly, Plenrosigma angulatum, Atnphipleura pellucida. To French Marine Botanists. Wanted, in exchange for British sea-weeds, those of French growth. — H. G., 15, Mulgrave- street, Plymouth. Exchange microscopical slides of different stages of the Pentacrinite larva of Comatula, various species of Marine Polyzoa, with their tentacles exerted, Australian seaweeds, &c. (list forwarded on application), for other thoroughly well- mounted slides. Illustrations of animal and vegetable struc- tures preferred. — Adolph Leipner, 47, Hampton Park, Cotham, Bristol. Several sets of six-opaque sections of coal plants and tissues ; wanted, recent and fossil polyzoa, graptolites from Silurian strata, or vegetable preparations. Several sets of six recent and fossil foraminifera ; wanted foraminiferous material, soundings, dredgings, or unwashed Lias clay. — G. R. Vine, Atterclifte, Sheffield. Duplicates. — Rhamni, Edrisa, Cardamiues, sEgeria, Semrle, Atalanta, Cardni, Io, Pa/hia, Galathea, Quercus. Xauchographa, Desiderata, IV. Album, Betuhe, Pruni, Paniscus, Attopos, the Sesiidw ; many Noctua ¥ and Geometrie. — A. Dent, 20, Thurloe Square, London, S.W. A large number of leaves with stellate hairs in situ from all parts of the world, in exchange for other good microscopic objects. — H. L., 6, Upper Phillimore Gardens, Kensington, W. Wanted, Erythra-a lati/olia, other plants in exchange. — Rev. F. H. Arnold, Fishbourne, Chichester. Send 2 good slides for 1 dozen patent mounting clips, brass, new kind, and capital to work with. — W. Tylar, 165, Well-street, Hockley, Birmingham. Exchange or otherwise. — A Ross's ~ s in. object-glass — wet and dry — a useful glass. — Apply to Rev. S. Bramhall, St. John's Vicarage, Lynn. Lyell's " Principles of Geology," 4 vols., boards, 1834, Figuier's "Primitive Man" (quite new), will exchange for British Birds' Eggs, or well-mounted British wild plants or mosses. — J. R. Murdoch, Horsforth, near Leeds. BOOKS, &c, RECEIVED. " Elementary Botany," Part II. By W. Bland. London Bemrose & Sons. " Industrial Art." January. " Popular Science Review." Januarj'. "The Midland Naturalist." January. " Land and Water." January. "The Naturalist." January. " American Journal of Microscopy." December. " Canadian Journal of Entomology." December. " Potter's American Monthly." December. " Boston Journal of Chemistry." December. "Journal of Applied Sciences." January. " lien. Brierley's Journal." January. " Chambers's Journal." January. &c. &c. &c. Communications have been received up to the 7TH ui.t., from:— T. S.— T. B. W.— T. L.— G. C— Dr. R. C. R. — G. S. T— C. F. G.— W. B.— H. P. M.— A. M.— D. A. — W. H. P.— W. H. S.— G. S. B.— Mrs. B.— D. S.— J. A. jun. — C. V. S.— G. C. D.— G. P.— A. R.— J. D.— C. P. O.— W. B. G.— G. A. H.— W. W.— S. E. B.— H. C. D.— R. C — P. D.— H. A.— W. C— G. J. A.— T. S.— J. S. L.— W. J. F.— T. B.— M. K.— J. G.-A. C. C— A. S.— C. C. H.— A. D. M. — W. J. S.— T. C. M.— J. C— A. S.— R. T. A.— F. N. H.— j. H.— W. R. T.— Dr. B.— W. S. B.-J. B.— W. B.— C. E. B. H.— M. L.-J. B.— J. W— W. T.— W. W.— G. L.— G. C.— G. E. B.— H. L.— H. P.— A. L — G. R. V.— A. D.— C. H.— J. R. M.-H. E. W.— W. M. -J. B.— C. B. M.— T. B.— A. W.— K. S.— T. F. U.— H. A. A.— R. G. C— Dr. F. C. C.-W. K.-E. R. F— J. B.— W. B.— H. G.— C. D.— &c. &C. HARD WI CKE 'S S CIENCE - G SSI P. 49 THE FLORA OF NATAL By J. M. WOOD. S possibly some of your readers may feel inte- rested in a few notes on the flora of this part of the world, I will, with your per- mission, enumerate a few of the native plants at present grow- ing in my garden. I reside about twelve miles from the sea, and though my garden is neither extensive nor particularly well kept, still I have taken pleasure in adding to it some of our beautiful native plants, a number of which were already growing in it when I came to reside here, having been planted by a former occupant. The first plant which attracts the eye at this season is Gieya Suthcrlandi, a shrub or small tree, now covered with its beautiful scarlet flowers, though the leaves have hardly yet made their appearance; it is a sapindaceous plant, though its true position appears to be doubtful, and is a native of the higher districts of the colony, in the Drakensberg, a range of mountains on the border of the colony. I am told that its spikes of flowers are sometimes a foot or more in length. Here it is usually called the "Natal Bottle Brush," but it is rarely seen in cultivation, as, on the coast, at least, it does not succeed well. Close beside it is Crinum Capense, usually called in the colony the "Natal Lily," and everywhere found in profusion, from the coast to far inland ; and in the ,spring and early summer producing its corymb of pink and white bell- shaped flowers. Near this plant is an Arum, of the genus Richardia (known here as the "Lily of the Nile ") ; it is now out of flower, but in the season flowering freely without the slightest care or attention. On the opposite side of the walk is another Arum of the same genus, whose leaves are spotted with white, like a Caladium, and which has a primrose or yellow spathe, and which is in this district quite plentiful. Beyond this plant, and scrambling about amongst the No. 159. adjacent shrubs, is a species of Mesembryanthtmum, with small but richly-coloured deep magenta flowers ; and near it another species with larger white flowers, and which is in some places near here quite common. In the middle of a small grass-plot in front of the house are two plants of Encephalartus, a cycadaccous plant, which sometimes has a caudex 10 feet or more high ; one of these plants, though its stem is only about iS inches high, has produced three large cones in the centre of the crown of leaves or fronds, some- thing like overgrown pine-apples. It is, I think, a male plant, though the scales are not yet sufficiently separated to decide with certainty ; during the five years that I have observed the growth of these plants, they do not seem to have increased much in height, but as they only put forth one crown of leaves in each season, this is not to be wondered at. The largest plant has upon it at the present time four sets of leaves, the lowest whorl of which are now nearly five years old, and rapidly decaying ; but when the spring has fairly set in it will unfold another complete crown of leaves, and thus the trunk gradually increases in height year by year. These plants were brought from Noodsberg, twenty miles from here, where they grow on the sides of precipitous rocks and under slight shade, at an elevation of 3,000 feet or more above the sea-level. We have a species of cycad growing in similar situations near here, but which does not, even in old age, develop a trunk ; its root is napiform, and, when dug out, as much as a man can carry with comfort ; it bears pinnate leaves 6 feet or more long. Near this latter plant is Stan- geria paradoxa, also a cycadaceous plant, found, I believe, only in Natal, and named in honour of the late Dr. Stanger, Surveyor-General. It is a very common plant in this neighbourhood, both in the open grass and in bush, and has the fruit of a conifer with the venation of a fern. On one side of the grass-plot is a fence formed of an apocynaceous plant of the genus Carissa, called here the ' ' Amatungulu, " and which bears a fruit which is much esteemed. It has pretty white star-like flowers, and plum-shaped 5° HARD WICKE'S SCIENCE- G OS SIP. scarlet fruit, but its double or forked thorns make it a rather unpleasant plant to come violently into contact with. The fruit, when unripe, is rather astringent, and full of a white milky juice ; and it is a standing joke here, that J. C. Byrne, the emigration-agent in the earlier days of the colony, when speaking in England of the natural products of the place to which he wished to attract the emigrants, said that in Natal the strawberries and the cream grew upon the same plant. The fruit is extensively used for making jams and jellies, a large quantity of which is, I believe, exported. At each end of this fence, and also around and near the house, are trees of Eucalyptus globulus, a native of Australia, some of them 70 feet high, though I believe only twelve years old ; and twining round one of these gum-trees is the stem of a native plant, Testutidinaria elephantipes, the Tortoise-plant, or Elephant's foot, a singular-looking plant, belonging to the family Dioscorea, or Yams. Its rhizome, which is above ground, is hard and tesselated ; and in my specimen the resemblance to a tortoise is sufficiently startling. It is perennial, and sends up a slender twining stem to the branches of the trees amongst which it grows, while the rhizeme sends down tough wiiy rootlets, with which it takes firm hold of the ground. The specimen under notice was the first which I had seen, and in climbing up some rocky ground I placed my hand upon it, but quickly with- drew it under the impression that it was the shell of a tortoise. There are, I believe, two species of this plant in the colony, but I have only met with one as yet. We have also two species of Gardenia, G. glo- bosa, now completely covered with its creamy bell- tnaped flowers, and G. grandiflora, with larger, salver-shaped flowers, which fill the garden with a delightful perfume. Then there is that rare plant, Mackaya bella, with its pale lilac pendulous flowers and curiously-veined corolla. I have been informed that this plant is only found wild in the valley of the Tongaat, but whether this is correct or not I do not know ; at any rate, it is not by any means common. Then we have a croquet-lawn, formed of a running grass which is commonly used for that purpose here ; and at one end of it stands a row of trees which have originally been stakes in a post and rail fence, but which have now grown into trees, some of them fine ones ; two belong to a species of Aralia, common here, and much used for fencing, as the post will gene- rally take root. Two others are fig : trees, of a species plentiful about here, and which have now grown into fine spreading trees, 20 to 30 feet high, with leaves which arc thickly covered underneath with small peltate scales or glands, the use of which I have not been able to discover. While the leaf is fresh, they appear, under the microscope, to be closely adpressed to the leaf; but as the leaf dries, they curl up at the edges, and are then easily detached, leaving a small pit or hollow. Three more of these trees belong to the genus Erythrina, or, as it is called here, " Kafir j Boom," and are now covered with beautiful scarlet ! blossoms, but without a single leaf. This tree is common in the colony, and during the winter months its magnificently-coloured flowers make it a very conspicuous object. We have several species in the colony, two of which are growing here ; one is usually called the ' ' Cork-tree, " as its bark has much the appear- ance of rough cork ; its leaves are large and coarse, and the wood of both species is so light, that I believe it is sometimes used for floats in fishing. I have used it for setting butterflies, for which purpose it answers almost as well as cork, which is not procurable here. And I have no doubt that it may yet be put to many other uses, though at present it is not used, as far as I know, for anything but fencing. I have also a small fernery, of which I may have something to say on another occasion, should it be acceptable to your readers, and also about the numerous wild flowers growing so profusely in this neighbourhood. THE LATE ANDREW MURRAY, F.L.S. BY the death of Mr. Andrew Murray, which occurred on the 10th ult. at his residence in Bedford Gardens, Kensington, entomology and botany loses an assiduous and careful worker. Born in Edinburgh in 1812, he paid some attention in his youthful clays to the study of medicine. He was, however, educated with a view to following the law as a profession, and for a short time practised as a Writer to the Signet. Subsequently he assisted his relative, John Murray (Lord High Advocate), in his desire to provide some practically useful reading for village schools by writing a little pamphlet entitled "The Skip-jack; or, Wire- worm and the Slug," which, though published without his knowledge, may be considered as his first contribution to economic entomology. The year preceding his removal to London, he contributed to the " Transactions of the Royal Society of Edinburgh " a paper relating to a subject then under discussion, as to what extent the unity of species in the parasite showed unity of species in the animal preyed upon; "the pediculi infesting the various races of man," giving minute descriptions and considerations as to how far the variations might be considered to amount to specific differences. After his removal to London in 1S60, Mr. Murray devoted himself specially to the sciences of ento- mology and botany. About this time he became officially connected with the Royal Horticultural Society, being appointed assistant-secretary. After relinquishing this post, he continued, almost to the moment of his death, to show a great interest in the society, being one of the strongest supporters of, and most frequent attendants at, the meetings of the scientific committee. In 1869 he formed one of a party, including Sir HARD WICKE'S SCIENCE- G OS SIP. 5i Joseph (then Dr.) Hooker, of representatives of English science at the Botanical Congress at St. Petersburg. In acknowledgment of the service rendered on this occasion, he was presented by the Emperor Alexander with a splendid malachite table. During his absence from England at this time, he paid considerable attention to the subject of Conti- nental forestry, and every facility was given him in his inquiries in Belgium by the Belgian Government. In 1 87 1 he undertook the laborious task of superin- tending much of the selection or arrangement of the English exhibits at the Polytechnic Exhibition at Moscow in the following year. In botanical science, Mr. Murray's work lay principally among the Conifene, having written a small book on the " Pines and Firs of Japan," and contributed numerous papers on the same group of plants to different scientific and horticultural journals. He was secretary to the Oregon Committee, who sent out a collector to Oregon and California to collect Coniferse, and in 1873 he undertook an expedition to Salt Lake and California, partly with a scientific object, and partly with a view to investigate the working of the silver-mines. In the course of his mining investigations he was ex- posed to considerable danger, minute inquiries mak- ing him obnoxious to some of the parties concerned. In his entomological career, the great point was the devotion of the last ten years of his life to the subject in its practical bearings. As a monument of his skill and profound knowledge on this point, the results stand in the Government collection of econo- mic entomology at Bethnal Green. The charge of receiving and arranging the contributions to this collection was placed in his hands officially in 1868, and from thenceforward he may be said to have given himself up to the task unceasingly, down to his latest hours ; for, during his American expedition, he left behind him the threads by which the collec- tion might be proceeded with in his absence. Of the patient labour and scientific research he dis- played in this collection it is impossible to speak too highly. Under his guidance the life-histories of the insects (of which knowledge was required to ascertain their remedies) were, in some cases, worked out, in others verified and amplified ; remedies were ascertained and experiments initiated ; and the whole life-history was shown at once correctly, scientifically, and as clearly as possible to the popular eye by illustrations of the insect in its various stages, and the object injured, accompanied by drawings and, when possible, facsimile models. Mr. Murray was an accomplished draughtsman, and a large number of the insect drawings are his own work, in all cases clearly executed, and many, especially those of the Coleopterre, really works of art. On this collection he was working up to his latest days, having, we believe, a quantity of material in progress of arrange- ment. It is much to be regretted that his descriptive catalogue of the collection should not have progressed beyond the first volume devoted to the Aptera, which was to have been followed, as we learn from an introductory note, by a complete series. The compilation of such handbooks is a work requiring great knowledge of the subject, as well as familiarity with writings of previous observers, and the head and hand which formed the collection could best give us the description which utilizes it for general reference. Mr. Murray contributed valuable papers of original observation both to home and foreign scientific societies and serials, and amongst his larger works, his volume on the " Distribution of Mammals " is one of very great value, with regard to the representation of families, both prehistoric and present, and also for its synonymic lists and tables. It is said that Mr. Murray's health suffered much during his American tour, but that the immediate cause of the unfavourable change was due to the amount of chloroform inhaled whilst rearranging a portion of the Doubleday collection infested with Mites. He was not in strong health at the time, but continued at his post from day to day, trusting that after effects might wear away ; his general health, however, sank from that time, and all who had the privilege of knowing him will feel that by the death of Andrew Murray they lost a true-hearted and loyal friend, as well as a gifted naturalist. J. R. J. ON SOME RECENT FORAMINIFERA FROM THE SHETLAND ISLES. S By George Robert Vine, Jun. OME time ago my father gave me a small packet of dredgings that he had received from Mr. Lovett, Holly Mount, Croydon. The dredgings consisted of minute particles of broken shells, quartz, &c, but especially of Foraminifera. These I worked out, and the following is a list of the species obtained. Globigerina bulloides, D'Orb., both in the young and mature state, were very plentiful ; Rotalia Beccarii, Linne, Very small, but showing the character of the genus well; Rotalia oi'bicularis , D'Orb., and varieties, small, transparent, and perfect, common ; Planorbu- lina [Truncatulina) lobatula, Walker and Jacob, very common in Dog's Bay, &c, but only 8 or 9 speci- mens here represented the genus, and all these were not very distinct in the septa and foramen, but distinct enough to identify the species ; Operculina ammono- ides, Gronovius. This is a species hat can hardly te mistaken for another, being ammonite-like (as the name implies), with the septa distinct and double (see fig. 31); small and middle size, rare; Pulvimdina Micheliniana, D'Orb. (see fig. 28). This is a peculiar species : it has three different views ; the front is raised very much, with the septa rather wide apart ; the bottom is flat, with two convolutions showing the primordial, and the side view is bell-shaped; middle D 2 52 HARD WICKE'S SCIENCE-G OSSIP. size, rare. One species, resembling a Nonionina, is rather common: it is middle size, and has all the septa, foramen, &c, very much obliterated. Another most beautiful form is very common : it is small, semi- transparent, and veiy distinct ; the segments overlap one another, and in the 3 or 4 segments the septa form a fork-like arrangement ; the foramina are clearly seen with a low magnifying power. This one, with figs. 33 and 34, I cannot name, and I should feel obliged if anybody could help me to name it. Fig. 26. L . globosa ; nat. size, ^V i n - Fig. 27. L. sulcata; nat. size, ~g in. Fig. 25. Lagena distoma ; nat. size, -„ \ in. Of the genus Textularia, small, transparent, and perfect specimens were very common, but the larger end opaque ones rare. Five species of Textularia were found, but there is only one of them that I can name, and that is Textularia abbreviata, D'Orb. : it is small, transparent, and rare. Two other species Fig. 28. Pulvinulina M icheliniana ; nat. size, 3V > n - Fig. 29. Side- view of ditto. Fig. 30. Front view of ditto. were small and transparent. One of these I have figured to show the points protruding from the side of the shell. One of the opaque forms is about the 5 * T of an inch in length. The chambers go down to a fine point, are rather wide at the top, and a slight bit wider in the middle. It is very difficult to recog- nize the species on account of the middle portion being covered over by some arenaceous matter, there- by hiding the characters that in some respects determines the species. Of the Lagenida, some very good species here represented this family. The first of these is the neckless variety of Lagena sulcata, Walker and Jacob. It is a small form, and rather rare : only one of the three specimens obtained show the lines that traverse the shell distinctly. Lagena globosa, Montagu (see fig. 26). This form is very small and rare. It is a globular shell without any strire or foramina visible. Lagena disto?na politia, Parker and Jones. This is an elongated species, having the neck about half the size of the body. All three of these species of Lagena have been figured by Messrs. Parker and Jones in their paper on the Arctic Foraminifera, in the Philosophical Transactions for 1865, Part I. Cris- tellaria rotulata (fig. 36), Lamarck ; small and middle Fig. 31. Operculum amiuo- noides ; nat. size, ^ in. Fig. 32. Nohionina (?); nat. size, 5 y in. Fig. 33. Textularia, sp. Fig. 34. Uvigerina />yg] vicea ; nat. size, 3 \ in. Fig. 35. Rotalia orbicularis. Fig. 36. Cristetlaria rotulata , nat. size, ^5 in. size, rather rare. A good specimen, showing the septa well. Another peculiar species is an elongated form traversed by rather deep furrows, as in Lagena sulcata, with the septa placed in rather irregular positions. Four good examples were ob- tained, all showing different characters (see fig. 34). The Miliolida family was here represented by three very characteristic species. The first was Triloculina HARDWICKE'S SCIENCE-GOSSIP. 53 oblonga (?). These were very minute and indistinct ; rather rare. Biloadina ringens: this is a most beautiful and perfect specimen ; it is of a white colour and middle size. Rare. Spiroloculina canalicu- lata, D'Orb. (fig. 37). Two perfect examples of this species were found, showing the character of the genus well. Small and rare. In this short paper I have endeavoured to give an idea of the character of the Foraminifera found at Shetland. I have not given all the species found there, and only those that I possess myself. I have drawn the figures myself, without the aid of the camera lucida. In my research among this bit of sand I find that nearly all of the Foraminifera are of Fig. 37. Spiroloc2iliua canalicidata ; nat. size, J 3 in. Fig. 38. Biloculina ringens; nat. size, J 3 in. Fig. 39. Truncatulina loba- tula ; nat. size, ^ in. Fig. 40. Ditto, other side. NOTES ON THE DEVELOPMENT OF FROG'S SPAWN. By A. M. M'Aldowie, M.B., Member of the North Staffordshire Naturalists' Field Club. PROBABLY no animal is better known, from an anatomical and physiological point of view, than the Common Frog. Developmentally the frog has been specially studied, on account of the inte- resting metamorphoses through which it passes before it arrives at maturity, and also on account of the advantages which its egg offers for the examination of the ovum, the transparent albuminous covering affording unrivalled facilities for observations on, and experimental investigation into, the subject of deve- lopment. The microscopic structure and changes a brownish colour, showing that the water is impreg- nated with oxide of iron ; also that the Globigerina are dwarfed and thin, owing to the shallowness of the water, 120 fathoms, whilst the same species from the Atlantic, at a depth of 1,450 fathoms, are larger and more bulky. And this gives the fact that the Globigerina grow larger and more bulky in deep water, whilst they are dwarfed and thin in shallow water. Attercliffe, Sheffield. . Fig. 41. Frog's Spawn ; nat. size, March. Fig. 42. Ditto, April 4th. Fig. 43. Ditto, April Sth ; dorsal aspect ; lateral aspect. 44. Ditto, April nth; dorsal aspect ; lateral aspect. which are observed during the development of the embryo of the frog, are described and figured in most text-books of comparative physiology and his- tology, but the ordinary naked eye appearances and modifications which it exhibits are not to be found in these works. Nearly all zoological manuals give a series of illustrations representing the various stages in the development of the tadpole after its escape from the egg, but they do not figure the alterations which take place previously, without which the series cannot be considered complete. St. George Mivart, although he details the process of yolk subdivision and cleavage, and the other microscopic changes through which the embryo passes, yet with regard to the naked eye appearances he merely states,* "Gra- dually the embiyo assumes the form of a young tad- pole, and is provided with a pair of little ' holders ' (or organs for adhesion), just behind the mouth, with six openings on each side of the neck, and with a pair of rudimentaiy external gills. " Huxley, in what is undoubtedly the best work on the frog extant, in reference to this subject says,f "While still within the egg the embryo assumes the form of a minute fish, devoid of limbs and with only rudiments of gills, but provided with two adhesive discs on the ventral * The Common Frog (Nature Series), 1874, p. 15. t Elementary Biology, 1875, p. 155. 54 HARD WICKE 'S SCIENCE- G OS SIP. side of the head behind the mouth." The following notes, although very crude and imperfect, may serve to draw the attention of some of the readers of Scie>."CE-Gossip to this interesting subject during the season which is now approaching. I intended to supplement them the following year, but had no opportunity of doing so. About the end of March, 1874 (exact date uncer- tain), I exposed a mass of frog's spawn to the light in a glass tank, placing it in a window having a westerly aspect. There was no fire in the room. The small round ovum (fig. 41) gradually became elongated, assuming at first an ovoid form, but afterwards one end became attenuated, while a small groove formed near the other extremity, and on the 4th of April most of them presented the appearance shown in fig. 42. As the embryo enlarged, these characters became more marked, until, on the Sth, the form of the head and the body could plainly be detected (fig- 43)- April Sth. Most of the embryos show signs of animation. The movements consist of alternate flexion and extension of the body, the animal folding itself up laterally and then straightening itself at intervals of about half a minute. Movements first observed in the afternoon, and continued till sunset. April 9th. Movements more active than yester- day, but still as restricted as before. April 10th. Movements not quite so quick as yesterday, but more extensive and fish-like. April nth. Most of the tadpoles appear to be trying to free themselves from the albuminous mass by quick wriggling movements. External gills very plainly seen on all (fig. 44). They first appeared as two small protuberances, situated one on each side of the hinder part of the head. These gradually elon- gated, divided and subdivided, until they presented the appearance of small branched filaments. April 1 2th. Tadpoles all out this morning. Ar- range themselves in clusters with their heads all in one direction. Most of them remain quite motion- less, but a few swim actively about the tank. Stoke-on-Trent. A GOSSIP ABOUT NEW BOOKS. THE present winter has not been remarkable for the number of scientific books issued. When wars and the rumours of wars prevail, and the reading world has its taste demoralized by the vivid descrip- tions of such rapidly-succeeding events as those which have marked the history of the last six months, it is hardly to be wondered at that scientific literature should retreat almost to the vanishing-point. But there is a break in the clouds, and thoughtful people are hoping that the storm will clear away as fast as it gathered ; then we shall return to soberer literature than war and anti-war newspaper leaders, with a sense of relief and a fervent thankfulness for our narrow escape. Notwithstanding the paucity in the issue of first- class scientific books, the appearance of a new volume from the pen of Darwin is always sufficient to create interest. And perhaps of the works which that in- dustrious author has recently published, none is more important than the present work, entitled, "The Different Forms of Flowers on Plants of the same Species " (London, John Murray). Herein Dr. Dar- win has entered into the minutest and fullest investi- gation of the inner structures of flowers. We now find how abundant are the phenomena of trimor- phism and dimorphism (only a few years ago deemed so peculiar and exceptional), and that the number of species bearing cleistogamic flowers is also being added to every day ; that the latter structure of flowers, produced by exceptional circumstances, varies from one extreme to the other, and that these extremes are connected by an inosculating series. Thus the Grass Pea (Lathy?-us nissolia), bears cleistogamic flowers, which can hardly be told from the ordinary flowers just before the latter finally expand. At the other extreme we find cleistogamic flowers which are actually fertilized beneath the soil, and so are little above the condition of subterranean buds. Dr. Darwin further enters into the sizes and shapes of the pollen- grain produced by different-sized stamens in dimor- phic and trimorphic plants. The absolute necessity for crossing to be produced, by the pollen from the flower of one plant being carried to the pistil of another plant, comes out strikingly in Dr. Darwin's experiments ; for it is proved that very little is gained by the pistil of a flower being fertilized by the pollen of another flower borne by the same plant. The origin of monoecious and dicecious flowers, of nectaries in flowers, and many other singular and striking botanical peculiarities, are here discussed in the easy but philosophical style for which all the author's books are celebrated. It is truly a rich treat to the botanist to peruse such a book as this, and one to which all our readers who have not yet read it will thank us for attracting their immediate attention. "The Antelope and Deer of America," by John Dean Caton, LL.D. (London, Triibner & Co.), is a handsome treatise upon the natural history, including the characteristics, habits, affinities, and capacity for domestication, of the Antilocapra and Cervidce of North America. This is a question of the deepest importance in practical natural history, and one which has been too much neglected. Books on wild animals usually tell us more about their destruction under the name of "sport " than of possibilities of their domes- tication and utilization. Dr. Caton tells us he has for many years kept in domestication the American antelope, and all of the American deer of which his book treats, except the moose and the two species of reindeer. 1'his book deals with the important and difficult subject selected by the author with a fulness HARDWICKE'S SCTENCE-GOSSIP. 55 ■which leaves nothing to be desired. The structural affinities and habits of the various kinds of deer, and their comparison with each other, are most clearly set forth. To a zoological student this book has a pecu- liar and special value. The woodcuts are numerous, original, and well done. "Proteus; or, Unity in Nature," byC.B.Radcliffe, M.D. (London, Macmillan & Co.), is the second edition, revised and brought up to the newer views of science, of a book which created some attention when it first appeared some years ago. Practically it is quite a different volume to what it was then, when the disturbing theory of evolution was either unknown or ignored. Dr. Radcliffe is an opponent of evolu- tion, and although not a prejudiced one, we cannot help feeling he has not taken sufficient pains to fully understand it. Apart from this we have read his book with sincere pleasure and profit. It most thoughtfully and reverently discusses the many- changing varieties of Nature, physical, animal, and vegetable ; and dry facts and their relations light up with the glow of the author's genius. The literary style is of the most attractive character, not demonstra- tively fervid, but chaste and yet enthusiastic. "Physiography," by Professor Huxley, F.R.S. (London, Macmillan & Co.), will be hailed with pleasure by science students. Although we do not like the new name with which the South Kensington authorities have replaced the older one of Physical Geography, Professor Huxley shows us in this hand- some and well got-up volume how natural pheno- mena may be studied in the concrete, even in their relation to our earth, in a wider and deeper sense, perhaps, than was undertaken in the science of physical geography. The author eschews the old system of treatment in works on physical geography, wherein the readers were first taught about the shape and motions of the earth, &c, and begins just at the other end, leaving such astronomical facts to be dis- cussed last. The river Thames, in fact, is employed as a sort of scientific text, and Professor Huxley makes its relations and associations the groundwork of a general description which will answer almost equally well for any other river and river-valley in the world. The plan is admirably worked out, as we might reasonably expect it would be at the hands of such a master. "The Origin of the World," by Dr. J. W. Dawson (London, Hodder & Stoughton). Dr. Dawson is well-known as an ardent field geologist, and one who has largely and successfully contributed to the vast storehouse of geological knowledge. Unfortunately he appears to us to be an equally ardent theologian ; and so, when he writes books on geology in general (and he always writes them well and attractively), he cannot forget the theological bayonets against which the stony science has been repeatedly impelled. The consequence is a melange of geology and theology, which we are afraid is not of special advantage to either. Especially is Dr. Dawson angeied with the theory of evolution, and he loses not an opportunity to tilt against it, frequently with as much success as Don Quixote's similar attempt to overthrow the windmills. The present volume is especially satu- rated with what Professor Huxley calls "Mosaism"; one almost feels as if we had gone back to the time of Hugh Miller. But there are many readers who are fond of discussing the many points of contact which still exist between Genesis and geology ; and to such we can confidently recommend Dr. Dawson's book as likely to please them in no ordinary degree. "Accidents in Mines: their Causes and Preven- tion," by Alan Bagot, Mining Engineer (London, C. Kegan, Paul, & Co. ). In this small but attrac- tive volume the author has collected all the informa- tion possible, as seen by those who are engaged pro- fessionally as mining engineers, in order to its being brought before the public. He discusses whether the principles of Davey's Safety-Lamp hold good when the atmospheric pressure is as great as we find it in deep coal-mines. Also, what effect the vibrating waves of sound may have on the flame within the lamp when the latter is surrounded by an explosive mixture of gas. Mr. Bagot thinks that in the solution of these two problems lies the secret of explosion after shot-firing in mines. In the eighteen chapters which compose this book, the author enters most fully into the economy of coal-mines, and all that concerns their safe and effective working. The work is therefore a most valuable one, and ought to be in the hands of all those whom the subject directly or indirectly concerns. A REMARKABLE GARDEN PLANT. ( Thunbergia alata. ) THIS very pretty tropical climber, belonging to the natural order Acanthacecc, a native of India and Madagascar, was introduced to our gardens some fifty years ago. It presents in the structure of its flowers numerous points of interest. The plant is a slender twiner, with hastate leaves, whose petioles, as the specific name alata, implies, are broadly winged. The calyx is very minute, consisting of twelve hair- like sepals, its place being occupied by two large membranous, almost transparent, bracts. These are strongly keeled, and overlap each other, completely enveloping the calyx, and about one-half of the corolla tube. Besides the keel, there are about six well- marked longitudinal veins, connected by numerous smaller ones almost at right angles, forming a rect- angular network somewhat resembling that of Ouvi- randra fenesiralis. The whole surface is beset with scattered hairs, which are either simple, or with one or two septa, and bent where the septum occurs. They are hollow, except at the nodes and near the points, the hollow portion terminating in a bulbous 56 HARD WICKE'S SCIENCE- G OSS IP. expansion similar to a nettle-sting. There is but little chlorophyl, a large portion of the bract being occu- pied by air-spaces, into which numerous long, narrow stomata open. The corolla is salver-shaped, slightly oblique, and of a clear Nankeen yellow, the colour being somewhat brighter round the throat. In some forms the throat is a dark chocolate-brown, almost black, while in one variety the limb is pure white with a dark throat. The stamens are four in number, and are situated far down in the tube of the corolla, the interior pair being considerably shorter than the exterior pair. The filament is inserted into the dorsal portion of the connective, a short distance from the base of the anther, thus giving the ventral face of the anther a slight inclination forwards and upwards. Fig. 45. Diagram of flower of Thunbergia alata (vertical section). The anthers adhere by the ventral suture, the pro- jecting margins of the lobes being densely bearded with hairs of a peculiar and interesting form. They are slender and clavate, consisting of numerous joints. The lower are oblong, three or four times as long as broad. Proceeding from the base upwards, the joints become shorter, thicker, and more rounded, and with deeper constrictions, giving a beaded appearance, the uppermost one being frequently divided by vertical septa into two or three. These topmost cells are some twice or thrice the diameter of what I may term the stem of the hair, the whole of which, from base to summit, is finely tuberculated, the tubercles increasing in number and size from below upwards. A trace of this tuberculation occurs also on the hairs of the bract, but to a very much smaller degree. The pollen, which, like the anthers and the anther hairs, is almost white, is spherical, and has several broad, flat, spiral grooves winding round it in opposite directions, pro- ducing a very curious appearance. The pistil is long and slender, passes up between the interior and shorter pair of stamens, and, like them, is closely ! adpressed to the back of the corolla tube. The stigma, which is situated a short distance above the upper stamens, appears to consist of two parts. The upper portion is the style slightly flattened and curved round into a kind of a narrow funnel, at the base of which, and on the front of the style, is a semicircular cup-shaped body, which seems to be a further develop- ment of the stigma, as I have observed numerous pollen-grains adhering to its viscid edges. The con- cave surface of this cup is upwards, the convex down- wards. Thus it appears that every precaution is taken to avoid self-fertilization. The corolla is almost erect, Fig. 46. Anther-hair and pollen-grains of Thunbergia x 200. Fig. 47. Hairs of bract of Thunbergia X 50. the stamens densely bearded on the ventral or front side, with hairs pointing downwards, which hairs, still further to retain the pollen from any accidental dis- turbance from wind, Sec, are club-shaped, thickened at the apex, and closely tuberculated, while the pollen-grains themselves have spiral grooves to increase their tenacity to the hairs. Again, the stig- matic surface is turned directly away from the pollen, so that it is scarcely conceivable that self-fertilization could take place. Suppose an insect with a long pro- boscis visits the flower, its proboscis passes down- wards freely to the base of the corolla ; on with- drawing it, the trunk cannot fail to brush upwards or backwards some of the anther hairs, and in so doing set free some of the pollen which adheres. The horizontal and non-stigmatic portion of the pistil being downwards, receives none of the pollen. The insect visits another flower, and thrusts its proboscis, laden with pollen, into the corolla. In so doing, the stigma being in a narrow portion of the tube, is nearly certain to intercept some of the grains, and thus ensure fertilization. Even should this fail, touching the base of the style causes it to bend for- ward, and thus be ready for the next comer. The HARD WICKE 'S SCIENCE - GOSSIP. 57 truth of this is readily proved, for flowers which are "set" artificially freely produce seed, while those left to themselves, being grown under glass, and thus out of the reach of most insects, never come to matu- rity. The seed-vessel is somewhat curious, as well as other parts of the plant, being in shape a flattened sphere with a long beak, and contains two to four hemispherical rough blackish seeds. Altogether, whether as botanical curiosity, or a garden ornament, this Thunbergia is well worth growing. Greenwood Pim, M.A., F.L.S. THE POTATO-BEETLE. IN thanking Mr. W. V. Andrews, the Correspond- ing Secretary of the Long Island Entomologists' Society, U.S.A., for his kind and complimentary allusions to myself on page I of the present volume, I am reluctantly compelled, as he classes me " in the ranks of the alarmists," to conclude either (i) that I have, in my article on the Beetle in question, in Science-Gossip of 1st September last, acted un- wittingly upon the principle that language is given us to conceal our thoughts ; or, (2) that Mr. Andrews does not thoroughly understand the English tongue. There is some slight excuse for the first hypothesis in my remarks upon South Kensington on p. 202 ; and it is humiliating to have to point out, even to an out- sider, that these were "written sarkastic," as the great Artemus says. For the second one, I must refer to my express statement, on p. 203, that " to the writer it seems that our much damper and colder climate, not affording opportunities for the rapid suc- cession of broods which the insect develops in America, must materially militate against its obtaining a permanent hold ; and the collateral arguments, that no American beetle has ever established itself in Eng- land, and that we possess no near ally of this parti- cular one, cannot fail to have some weight in the matter." The fact is, that to every Coleopterist of my acquaintance, and to every one (the name is legion) with whom I have had conversation on the s ubject, it is well known that I have from the first steadily and strenuously been opposed to any belief in the idea that the potato-beetle could be of any harm in this country ; and this view I have always upheld in everything I have written. Indeed, I have a firm conviction that, if circumstances had not pre- vented the present Editor of Science-Gossip (long may he reign !) from attending the Plymouth meeting of the British Association, where there was much talk, post-prandial and otherwise, upon this subject, the false conclusion as to my being among the alarmists would never have appeared — at all events, without simultaneous correction. Mr. Andrews says : — •" Mr. Rye tells you that Paris green is a favourite remedy here, but he does not understand the American mode of doing things. Some State entomologist or other probably had a friend in the oil or colour business," &c, and, " You do not do things in that way in honest old England, but we do here." Without going so far as to quote a homely Saxon proverb, concerning a certain ill bird and its nest, I must, remembering Riley, Le Baron, Packard, Cyrus Thomas, and other "good men and true," of whose scientific help the U.S. Government has wisely availed itself, energetically disclaim the acceptance of such remarks as these as a sample of the " Science-Gossip " of the States. It is to the first- named of these authorities that we owe most of our knowledge of Transatlantic economic entomology ; and his reputation is far too securely established to be shaken by the insinuations of even the Corresponding Secretary of the Long Island Entomologists' Society. That gentleman's concluding caution to English readers, that all striped beetles found on potatoes are not Colorado beetles, but may be useful little fellows, &c, shows an ignorance of our Insect Fauna, re- markable in one who proposes to allay our (hypo- thetical) fears. E. C. Rye. NOTES FROM WEST KERRY. ONLY a few species of Cetacea are known to frequent the Irish coast ; the common por- poise is of every-day occurrence ; the pilot-whale {Globioceplialus Svineval) is often met with in large numbers, and an immense B alalia is occasionally cast on shore. All the smaller species of Cetacea are termed " Porpoises " by the Irish peasantry, who value them, not only as excellent food, but attribute to their flesh and oil hygienic and medicinal proper- ties. Consequently, whenever one or more happen to be stranded, they rush in crowds with scythes and sickles, hatchets, pitchforks, spades, knives, and all manner of deadly weapons, to the scene of the occur- rence, hew, hack, decapitate, and cut into fragments the unwieldy stranger, and long before rumour of the capture has reached any educated person, the coveted flesh is stored away in tubs, or piled in a corner of some sooty cabin ; the entrails and useless viscera thrown into the receding tide or torn by hogs (the dear and cherished associates in Irish cabins of scro- fulous children and of their filthy parents), and so far as science is concerned the unfortunate fish, seal, or cetacean, might as well have remained in his marine abode. On a March morning in 1S64, on the shelving sandy beach of Fermoyle, skirting the waters of Brandon Bay, on the west coast of Kerry, I observed two men moving a heavy object, which on closer inspection proved to be part of the head of a cetacean such as I had never before seen. The head had been much larger, and divided vertically behind the eyes ; the front portion only remained ; the eyes, however, were left untouched, as also the lunated spiracle, with the concavity looking forward. 53 HA RD WICKE >S S CIE NCE - G O SSI P. The measurements in the recent state of the animal were — From centre of fold of spiracle to each eye, 10 in. From same point to extremity of upper jaw, 22 in. From commissure of lips to extremity of upper jaw, 13J in- From same to extremity of lower jaw, 14 in. On the lower surface of the integuments corre- sponding to the space between the rami of the lower jaw, was a well-defined angle, formed by two de- pressed lines, or furrows, each ten inches long. These lines converged to an apex in front, while their extremities behind were seven inches apart. The acute angle thus defined corresponded, I say, externally with an almost equal internal angle, formed by the convergence of the lower jawbones, and giving accommodation to the deep pouch of the pharynx, as shown in my illustration With the kind assistance of my friend, Mr. R. Conway Hickson, whose finely- placed residence at Fermoyle is in the immediate vicinity of the scene of capture, the remains of the head were rescued from the destroyers and conveyed to Carthgregory, a neighbouring village, where scien- tific appliances are scarcely more numerous than "strawberries grown in the sea." However, under unfavourable circumstances four or five photographic illustrations were obtained from it — riot artistic, cer- tainly, but affording correct ideas, for the first time, I believe, of the physiognomy of the curious creature. Eagerly, as you may suppose, and at once, I con- sulted the few authorities within my reach, and found that this remarkable cetacean had not been pre- viously recognised as a visitant of the Irish coast, nor of Great Britain, save once before, in 1 790. In Jardine's "Naturalists' Library" it is described and figured as Diodon Sowerbii, but the Plate there given has little resemblance to the animal, and none as regards the beak, its most conspicuous peculiarity. It is described, though not figured, in the " English Cyclopaedia, as "Ziphius Sowerbii," and that is now its recognised appellation. The genus "Ziphius" is remarkable chiefly for its elongated jaws, which extend to, at least, a length of fourteen inches from the commissure of the lips, and form a beak or snout of great solidity and strength. The upper fits into the lower as a cylinder into a semi-cylinder. Before the lower jaws con- verge to form this semi-cylinder, and posterior to the point where the front of the pharyngeal pouch is attached to the bone, one stout pyramidal tooth is inserted in a deep socket on each side of the lower jaw ; thus the tooth is nine or ten inches from the extremity of the beak. The soft parts on the upper jaw are notched on each side for the reception of the high projecting tooth ; these teeth are believed to be characteristic of the male. Though found in the Scotch and Irish animals, there are a few specimens in Con- tinental museums from which they are absent ; this absence was supposed by some to indicate difference of species, by others to be merely a sexual distinction. The genus Ziphius is comparatively new to Natural History. Nothing was known of it till some fossil remains were sent from Holland and from the south of France to Cuvier, who, not being then aware of any existing cetacean with similar beak, supposed the remains to belong to an extinct genus. The dis- covery in Scotland, in 1 790, proved that this supposi- tion was erroneous, and a very few living specimens met with since have shown that Ziphius does exist in modern seas. Still they are extremely rare, and an unmutilated specimen would be of great anatomical interest, and its skeleton a desideratum in any museum. In 1870, after a lapse of six years, it was my fortune, alone of all men, I believe, to meet with a second Ziphius, about five or six miles from the site of the first capture. This time the animal came in near Brandon Pier, a very interesting and well-known fishing-station, worthy of more remark than would be relevant here. Before I saw it, it had been treated like its prede- cessor ; its flesh had been cut into a thousand pieces by the greedy peasantry, and its bones unscientific- ally sawn and broken. I snatched a portion of its jaw from a dog's mouth, and disinterred parts of the split skull from a dungheap ; and I dragged some portion of the skeleton, as well as part of the stomach which pigs had not torn, from the ebbing tide. The intes- tines generally were so mangled as to be useless for anatomical purposes ; nor could any part of the solid viscera be obtained. An irregular hole, whose largest diameter may have been an inch, had been made in one compartment of the stomach, which I had taken from the tide-covered sand, and this compartment was completely filled with sand. I do not think it probable, or even possible, that the sand could have entered through the accidental aperture while for a short time under water. I cannot offer any explana- tion of hozv or why it was there ; but who will affirm, in our total ignorance of the habits of the animal, that he did not swallow it during life, impelled by some unaccountable physiological necessity, or per- haps from -depraved appetite, the result of disease ? I opened what seemed to be a second compartment of the stomach, when more than a pint of bile rushed out. Anatomists have denied a gall-bladder to zoo- phagous cetaceans, but what was this ? — or is ziphius not zoophagous ? Nothing but sand and bile existed in these viscera ; I was much pressed for time, and could not examine more closely into the matter, but sent both stomach and bile to Dublin to competent investigators. Ziphius No. 2 was about seventeen or eighteen feet long, and was first observed on the beach at high water, in great uneasiness, floundering, and, of course, working a cavity in the sand, in which it remained when the tide had ebbed. When first approached by its butchers it was seen to open its cylindrical jaws in a portentous way, and to close them with an HARD WICKE'S S CIENCE- G O SSI P. 59 angry snap, while from each tooth stood out laterally two or three large barnacles, giving it a wild and extraordinary appearance. Of these cirripedes only parts of the peduncles remained when I got posses- sion, but, as the captors said, they were not common barnacles (Lepas Anatifera), so well known to all dwellers on the sea-coast ; I am inclined to believe they were another well-known species {Conchoderma Aurita). The presence of these barnacles seems to discountenance an opinion which some might rashly entertain, that the sharp strong teeth, if not confined to the male, were used to impale the animals' prey, while being crushed by the powerful beak ; but if such were the case, the impudent and daring guests would be rubbed off before they could become firmly fixed to their strange abode, so close to the maw of their monstrous host. On the other hand, the ex- tremely sharp point of the tooth would seem to indicate constant use. As to the colour of the animal, the skin on the head of the Fermoyle speci- men was of a glossy satiny black, badly represented in the photograph, owing to the reflection of light, but I cannot now speak with certainty of the mouths proper and the tongue. In the Brandon Pier speci- men I cannot speak of the head, but the deep pha- ryngeal pouch was of the usual reddish colour of mucous membrane. I obtained a few square pieces with the natural skin, not torn or gnawed, black and glossy, but vermicularly marked with white streaks, up and down and across, in irregular network. Many of the "streaks bore a singular resemblance to old cicatrices — scars from greedymarine warriors, inflicted, perhaps, by grampuses or sharks. Though I will vouch for it that Ziphius himself, if angry or jealous, could give a sharp nip to an enemy or rival, yet I do not believe that these teeth were given for attack or defence ; if fixed at the point of the beak, they would be powerful instruments for either species of warfare. One of the spectators asserts, that when first stranded, the unhappy animal "roared like a bull." Another insists that he was perfectly silent. In this, as in almost every case, I would be inclined to believe the less sensational witness. A recital of the synonyms applied to our long- beaked friend — ungallantly assuming that the tooth- less specimens are the females — would fail to interest your readers. Diodon, Physeter, Delphinorynchus, Mesodiodon, Dioplodon, Mesoplodon, are a few of the jaw-breaking epithets, dangerous to any jaw less mighty than its own! "Ziphius Sowerbii," like Aaron's Rod, has swallowed the others. My friend, Mr. William Andrews, the zealous and learned naturalist who has done so much for Irish Natural History, and especially for that of West Kerry, has given them all, and much information besides, in an excellent paper read to the " Royal Irish Academy," descriptive of Brandon Ziphius No. I, to which I may refer all readers for information be- yond the scope of my " gossip." I placed the few fragments of skeleton No. i at the disposal of Lord Ventry, and of No. 2 at the disposal of Mr. Andrews, and I believe they are now in the museum of the " Royal Dublin Society." J. W. Busteed. THE SEALS AND WHALES OF THE BRITISH SEAS. No. VIII. By Thomas Southwell, F.Z.S., &c ONE more British Ziphioid is known, Sowerby's Whale {Mesoplodon Sowerbiensis, De Blain- ville) ; it was first described from a specimen which came ashore at Brodie, Elginshire, in 1800, and has since been found three times in Ireland ; there is also a skull in the Museum of Science and Art at Edin- burgh which belonged to a specimen believed to have been captured somewhere on the Scotch coast ; the remains of five others are preserved in various Continental museums. Of the individual which came on shore on the coast of Kerry, in March, 1864, Mr. Andrews has given a description in the " Transactions of the Royal Irish Academy," for April, 1867. Fortunately it came under the notice of Dr. Busteed, of Castle Gregory, who being interested in zoology, and aware of the great importance of the occurrence, photographed the head in several positions while it was yet fresh : Dr. Busteed's photographs were reproduced in the Transactions of the Royal Irish Academy. The head had unfortunately been removed immediately behind the frontal portion of the skull, the base of which is lost, as also the other parts of the skeleton. The total length of the animal was about fifteen feet, the two teeth largely developed and projecting like the tusks of a boar ; these teeth are believed to be developed only in the males. On the under part of the throat the V-shaped furrow was very conspicuous. Sowerby's specimen was coloured black above, and nearly white below. The skin smooth like satin. ' ' Immediately under the cuticle the sides were completely covered with white vermicular streaks in every direction, which at a little distance appeared like irregular cuts with a sharp instrument." The remaining family, Delphinida, as has been said, is a very numerous one, it has ten representatives in the British fauna, contained in seven genera, the first of which, according to the arrangement I have adopted, is that of Monodon. The Narwhal {Afonodon monoceros, Linn. ) is a native of the Polar seas, seldom leaving the ice ; stragglers have occurred three times on the British coast, one in 1648 in the Firth of Forth, another came ashore alive at Boston, in 1800 ; the third was taken in Shetland in 1S08. This species is very numerous in the frozen seas to the north of latitude 65 , and is remarkable 6o HARD WICKE 'S S CIENCE - G OSSIP. for the enormous development of the left canine tooth, which is projected forward in the form of a tusk or a spear, reaching to the length of six or eight feet. The spear is of fine compact ivory, hollow for the greater part of its length, grooved spirally along its outer surface, but smooth at the end, and bluntly pointed. The right canine is rarely developed, but a few examples have occurred in which both tusks were present (see Proc. Zool. Soc, 1S71) ; the female is rarely furnished with this appendage. Not long since I saw preserved in a country mansion, the tusk of a Narwhal measuring 7 ft. 5 in. long ; it was care- fully kept in a long case resembling a barber's pole, tusk, which is frequently found in a broken condition, is used for purposes of attack and defence. The Narwhal is very social in its habits, great numbers being often met with together ; its food consists of cuttle-fish and crustaceans. The length of the full- grown animal is about 16 feet, the upper parts gray, the sides and belly white, and the whole animal spotted with black and gray. The only authentic figure of the Narwhal with which I am acquainted is that given by Scoresby ; this is so well known from frequent reproduction that it is not necessary to give it here. The White Whale, or Beluga {Delphinapterus Fig. 48. The Grampus (Orca gladiator, Lacep.). and bore a ticket attached, which stated that it was " Bequeathed in 1561 by the Countess of ■ , to her daughter ." The use of this remarkable appendage appears very doubtful ; it has been con- jectured that it serves to stir up food from the bottom of the sea, in which case the female would be badly off without it ; or that it is employed to keep breathing- holes open in the ice, and an instance is related in support of this view, in which hundreds were seen at an ice-hole protruding their heads to breathe, but it is not clear whether they made the hole for them- selves, or whether they were attracted by it, particularly as there were numbers of White Whales with them. It seems certain, however, that the lucas, Pallas), like the preceding species is a native of the Polar seas, where it is common; it is abundant in the White and Kara Seas and in the Gulf of Obi ; on the coast of Norway it is occasionally met with ; and in our own seas has occurred several times, but must be regarded only as an accidental straggler. On the east coast of America it is found as far south as the Gulf of St. Lawrence, where, as in the White Sea, it delights in ascending the mouths of large rivers. In the British Associa- tion Report on the Fauna of Devonshire (1S69, pp. 84 and 85), occurs the following passage. " Mr. P. H. Gosse writes :— 'On August 5th, 1832, I was return- ing from Newfoundland to England, and was sailing HARDWICKE'S SCIENCE-GOSSIP. 61 up the British Channel close to the land, when just off Berry Head, I saw under the ship's bows a large cetacean of a milky-white hue, but appearing slightly tinged with green from the intervening stratum of clear water. It was about 16 ft. long, with a round, bluff head. It continued to swim along before the vessel's head, a few yards beneath the surface, for about ten minutes, maintaining our rate of speed, which was five knots an hour, all which time I enjoyed from the bowsprit a very good view of it. It could have been no other than the White Whale, the B. borealis of Lesson.' " The whale lately exhibited at the Westminster Aquarium belonged to this species; unfortunately it did not live to equal in docility and intelligence a specimen exhibited in kill great numbers, extracting the oil and drying the flesh for winter use ; in Russia, the prepared skin is much used for reins or other parts of harness requiring great strength and lightness. The length of the full-grown animal is about 1 6 ft., and its food consists of fishes, Crustacea, and Cephalapods. The common Grampus or Killer {Orca gladiator, Lacepede), (fig. 48) is a well-known and widely dis- persed species, being found in both the North Atlantic and Pacific Seas. Andrew Murray says "the common Grampus tumbles through the heavy waves all the way from Britain to Japan, viA the North-west Passage." In the British seas it is frequently met with, and has occurred in several instances on the coast of Norfolk. This species is very fierce, its appetite insatiable, and Fig. 49. Pscudoiva crassidciis (Reinhardt). Fig. 50. Risso's Dolphin {Grampus griseiis, G. Cuv.). America, which "learned to recognise his keeper and would allow himself to be handled by him, and at the proper time would come and put his head out of the water to receive the harness " by which he was attached to a car in which he drew a young lady round the tank, — or to take his food. A specimen of DelphiiiKS tursio which was for a time with him in the same tank, is said to have been even more docile than this remarkable animal.* The adult Beluga is pure white, and a "school "of these animals "leaping and playing in the calm, dark sea," is said to be a very beautiful sight. In summer the Greenlanders * Ann. and Mag. Nat. Hist., 3rd series, vol. 17, p. 312. carnivorous in the strictest sense of the word ; to the Greenland and White Whale, as well as to porpoises and seals, it is an implacable enemy, and follows them ruthlessly. Dr. Brown says, ' ' the White Whale and seals often run ashore, in terror of this cetacean, and I have seen seals spring out of the water when pursued by it. The whalers hate to see it, for its arrival is the signal for every whale to leave that portion of the ice." Eshricht took out of the stomach of a Killer, 21 ft. long, which came ashore in Jutland, no less than thirteen common porpoises and fourteen seals. The rounded, compact form of this species gives the idea of great strength and swiftness, and the beautifully 62 HARDWICKE'S SCIENCE-GOSSIP. polished glossy black skin of the back contrasting | with the equally pure and well defined white of the lower parts has a very striking effect ; altogether it is a very handsome species, but there is something in its appearance which seems to indicate its cruel nature. The adult Killer measures about 21 ft. in length, the back is pure black, the under parts white^ and over the eye is a well-defined white spot ; there are thirteen or fourteen strong, slightly curved teeth on either side of both jaws ; the flippers are broad and oval shaped, the dorsal fin high, particularly in the male. As these papers are intended for the purpose of assisting in the identification of casual visitants to our shores rather than of giving anything like a history of the known British species of Cetacea, it may be desirable to mention here a very remarkable form, which although it has never been known to occur in the flesh on our shores, was first made known to science from an imperfect skeleton found in a semi- fossil condition beneath the peat in a Lincolnshire Fen. To this Dolphin " come back as it were, from the dead," and which forms a connecting link between the genus Orca and the genera Grampus and Globi- cephalus (and which Owen had named Phocana crassidens), Reinhardt gives the name of Pseudorca crassidens. On the 24th November, 1861, a large shoal of these dolphins made their appearance in the Bay of Kiel, about thirty of which the sailors suc- ceeded in separating from the remainder, but all, with one exception, escaped. This was a female i6feet long, which after being exhibited at Kiel and other places, was bought for the collection of the University of Kiel. In the summer of 1862, three other individuals, presumably from the same shoal, were thrown ashore on the north-western coast of Zealand. Of the general appearance of this creature the accompanying figure (49), copied, by kind permission, from Pro- fessor Flower's translation of Reinhardt's paper read before the Royal Danish Society of Sciences in 1S62, and published by the Ray Society, will give an idea ; the figure is from a photo- graph of the Kiel specimen, and is not in the original paper. The length is from 16 to 19 feet ; of the colour no account is given, but judging from the woodcut of the Kiel specimen it appears to be uniformly shiny black. The number of teeth differs in individuals, but in this one it was from 9 to 10 on either side of the lower jaw, and 8 to 10 in the upper. From the observations made by Reinhardt, he suggests the possibility that there may be " a difference in the sizes of the different sexes, and whether the females are not larger, but at the same time, perhaps, provided with a head comparatively smaller than that of the males." It is very suggestive of how little we know of the inhabitants of the sea, that at least one vast shoal of a species known only from its sub-fossil remains should be roaming the seas only to be accident- ally discovered when its members became entangled in shoals from which probably many never lived to extricate themselves. Risso's Dolphin {Grampus griseus, G. Cuvier) is a rare and little known species, which has been met with four times on the south coast of England and about eight times in France. In the "Transactions of the Zoological Society," for 187 1, Prof. Flower gives an account of an adult female which was taken in a mackarel-net, near the Eddystone Lighthouse, on 28th February, 1S70, and which eventually was sent up to London, when it was seen and described by that gentleman. About a month later, a second specimen was received in London, the precise locality of which was not known, but it was probably from somewhere in the Channel. This was also a female, but a very young animal, and as the adult female first taken had recently given birth to a young one, it is quite possible that it may have belonged to her. On the 26th July, a male of the same species was captured alive at Sidlesham, near Chichester, and sent to the Brighton Aquarium, where it lived only a few hours. Risso's Dolphin varies very considerably in its colouration. The Sidlesham specimen was bluish- black above, and dirty white beneath ; in the adult female described by Professor Flower (from whose illustration our figure is, with his permission, copied), "the head and the whole of the body anterior to the dorsal fin was of a lightish grey, variegated with patches of both darker and whiter hue. . . . Behind the anterior edge of the dorsal fin the general colour of the surface, including the dorsal and caudal fins, was nearly black, though with a large light patch on the upper part of the side directly above the pudendal orifice. The middle of the belly as far back as the pudendal orifice, was greyish white. "* The most remarkable characteristic however, was the presence, scattered over the body, of irregular light streaks and spots, these markings extended from the head to within about two feet from the tail and presented a most singular appearance. In the young one the upper parts and sides of the body were almost black, the lower parts nearly white, the junction between the two colours being very abrupt and sharp. " On either side the body were six vertical whitish stripes nearly symmetrically ar- ranged, and almost equidistant, being about six inches apart. They did not extend quite to the middle line of the body above, and were lost below in the light colour of the abdomen. ™f The length of the Sidle- sham male was 8 feet, that of the adult female 10 ft. 6 in. ; in the former there were present four teeth on each side the lower jaw, in the latter three only on each side, and in the immature specimen there were present seven teeth, four on the right, and three on the left side, the teeth are always placed in the front part of the mandible, and in every specimen exa- Trans. Zool. Soc, vol. viii., p. 3. t 1. c. p. 13- HARD WICKE'S S CIENCE- G O SSIP. 63 mined there has been an entire absence of teeth in the upper jaw. In general appearance, Risso's Dolphin, more particularly the dark-coloured specimens, is said very much to resemble the next species {Globicephalus melas). Of its habits and distribution nothing positive is known, but from its visiting France or England in the spring or summer. M. Fischer " concludes that this species is migratory, visiting the shores of Europe in the summer, and passing the winter either to the south towards the coast of Africa, or to the west towards the American Continent." * MICROSCOPY, Volvox Globator. — It may be interesting to Microscopists to know that Volvox Globator can be found in considerable numbers — although so early in the year — in the large pond near Wandsworth Com- mon Station. On Wednesday, Jan. 23rd, the Super- intendent of the Sunday School here gave a treat to the children, and we arranged to make it both in- teresting and instructive. Having undertaken the Microscopic department, I was examining a bottle of fishings from the pond, and was surprised to find it contained Volvox in great plenty. To find it so early being quite new to me, I have inquired of several friends, but none of them had met with it at this time. Most of them seem to have imagined that it was use- less to expect to find it till about the end of March. It may be that many others have not found it for the same reason ; and a knowledge of the fact of its being obtainable now may be an addition to the Micro- scopist's pleasures. While examining a portion of the gathering, we were particularly struck with a fine specimen, containing no less than ten small ones en- closed. It rolled round with a motion so grand, that all who saw it were delighted. Suddenly, while watching it, it stopped for a moment, and then burst. Five of the little ones escaped from the parental en- velope. There was a distinct pause between their liberation, and each came out with a sort of dizzy staggering movement, and then, after a momentary rest, would start off and commence to roll as if quite an old hand at doing it. The other five seemed to die, and make no sign. — IV. Winsford, Upper Tooting. Cleansing Old Slides. — In my paragraph on this subject, which appeared in the January number ofSciENCE-GossiP, p. 15, at line 4, instead of "water- glass," read " watch-glass." In line 7 put a full stop at "Benzole," and instead of "and use," read " /use." — John Bramhall. Improvement in Microscope-Stands. — Mr. George E. Fell, of Buffalo, has recently suggested a new addition to the microscope-stand. It consists 1. c p. of a finely-engraved scale on that part of the body of the stand which sides the limb. The latter can be furnished with a vernier, giving readings as close as may be desired. Plant-crystals. — At the last meeting of the East Kent Natural History Society, numerous draw- ings were exhibited of Raphides, and other microscopic plant-crystals, intended to be engraved on two plates of more than forty figures. They were the work of Prof. Gulliver, F.R.S., who gave explanatory ob- servations thereon. Among these was the curious and novel description, that some trees and other plants, from stem to branches and leaves, are in- vested by a most delicate network, or tesselated pavement like mosaic work, of cells all studded with splicer -aphides, so that eacli cell is set and adorned with a gem of one of these beautiful crystals. Aralia spinosa was said to form an example, beneath its bark or epidermis, of this external skeleton of crys- talline tissue. And an internal crystalline skeleton was shown in other plants, including some Legu- minosce, as may be well seen in the common white clover ; the crystals being arranged in chains along the vascular bundles. Mr. Gulliver remarked that boiling a portion of the plant, before its examination, in the solution of caustic potass which is kept by druggists, exposes the crystals very clearly. He added that he had learned that Mr. Hammond, of Milton Chapel, had found the long crystal prisms of Iridacece, Sec. , admirably suited for experiments on the polarization of light ; and that the whole subject of plant-crystals belongs to the vast domain of the cell-biography of plants, hitherto sadly neglected, but which must be diligently cultivated before we can hope for the most complete system of botanical classification, and knowledge of the laws which govern the vegetable kingdom. Habirshaw's Catalogue of the Diato- mace.e. — Mr. Frederick Habirshaw, of 6, West Forty- eighth Street, New York, to whom I am personally unknown, has kindly sent me a copy of the above work, which supplies a want long felt by diatomists. To explain its plan and intention I cannot do better than quote the short preface. "The following Cata- logue, made for private use, contains ' the references to the literature of the Diatoniacece, published prior to May, 1877. At the suggestion of Prof. Hamil- ton L. Smith, of Hobart College, fifty copies have been reproduced by the Edison electrical pen pro- cess, for gratuitous distribution among those specially interested in this branch of natural history, and I trust the errors or omissions will not be found suffi- cient to impair the value of the Catalogue." The volume is a convenient quarto, 11 in. x 6 in., of some 270 pages, the first six containing a list of the principal writings relating to the diato?nacea:, the rest being devoted to the general catalogue. The genera and species are arranged alphabetically, and 6 4 HA RD Wl CKE 'S S CIE NCE -GOSSIP. there must be considerably over 7,000 species enu- merated, to each of which short but copious refer- ences are attached, as to where it may be found figured or described, the synonyms being also given. As far as I have been able as yet to verify these, they seem quite correct. Those who have been fortunate enough to receive a copy will, of course, show it to their friends, who will wish to obtain one also, and I fancy Mr. Habirshaw will be induced to print off a much larger edition, though, of course, not gratui- tously, to supply the demand. — Fred. II. Lang, Torquay. Microscopic Life of the Carboniferous Limestone. — At the last meeting of the Chester Society of Natural History, Mr. G. W. Shrubsole, F.G. S., read a lengthy and interesting paper on " The Microscopic Life of the Mountain Limestone (foramenifera, radiolaria, entomostraca, poiyzoa, &c.)." The various objects described had been chiefly obtained from the mountain limestone of North Wales and the neighbourhood. ZOOLOGY. Turning an Enemy to Use. — The United States Entomological Commission, which was organ- ized for the purpose of investigating and reporting on the entire subject of insect ravages throughout the western regions of the United States, have discovered, by means of chemical analysis, that dead locusts will furnish a new oil, which will be christened caloptine, and a very large percentage of pure formic acid. Though this acid exists in the ant and some other insects, it is with difficulty obtained in large quanti- ties ; whereas, by the action of sulphuric acid upon the locust juices, it passes off with great readiness and in remarkable quantity and gravity. The uses of this acid, as a therapeutic, are capable of great and valu- able extension, where it can be obtained so readily and in such quantity. The Red-throated Diver. — When visiting in Shetland two years ago, I had a capital opportunity of witnessing the nesting of the Red-throated Diver (Colymbus septentrionalis). Having been informed by a Shetlander that the aforesaid bird had frequented a certain loch the previous year, I was determined to walk over thither, a distance of about six miles. Accordingly I set out, but, in crossing the mountains, encountered a very heavy shower of rain, which con- tinued for the space of about an hour ; nevertheless I succeeded in seeing the object of my expedition. When on the summit of a mountain near my journey's end, I descried the loch, and also the Diver swim- ming leisurely about. This, however, proved to be the male, for, on walking round the margin of the loch, I saw the female sitting on her nest with out- stretched neck. She permitted me to approach within about four yards of her. When I had stood for five or six minutes to admire her beauty, she suddenly dived from the nest, and all my efforts to see her afterwards were unavailing. The nest was nothing more than a slightly hollow depression on the very edge of the loch, and contained but one egg, of a more elongated form than usual, of a dark brown colour, sparingly spotted with black. — C. D. Wolsten- holme. Rare Birds Shot. — Lately there have been the following rare birds shot : — A Merlin (Falco sEsalon), shot near Wetherby on the 16th Decem- ber, 1877; a Bittern (Botaurus stellaris), shot at Castle Howard, on the 26th of the same month ; and a Pied Water Rail (Rallus aquaticus), shot in Ireland in January, 1878. The latter has a great: quantity of white on the back ; the top of the head and neck have also a little white about them. There is a little white on the tail, and the tertials are nearly pure white. — P. Thompson. St. Mary, Lambeth, Field Club. — This most useful and unostentatious Natural History Society was originated about six years ago by the Sunday School teachers of the parish, who have been very successful in diffusing and popularising a love of natural history. It includes about thirty members, of whom Arthur Eve, Esq., is president, and Mr. G. Masters secretary. The Birds of Costa Rica. — At a recent meeting of the Zoological Society of London, Mr. A. Boucard, C. M.Z.S., read a paper, in which he gave a list of the birds he had collected during a recent ex- pedition to Costa Rica. The number of birds col- lected during his five months' stay was about one thousand in number, representing two hundred and fifty species, amongst which were two new to science {Zonotriehia boucardi and Sapphironia boucardi of Mulsant) and many others of great rarity. " Sponsa's Headquarters." — I find I made two mistakes in my article. They both occur in the list of Diurni at the end of the article -.—Aglaja should be omitted ; and, for Artaxerxes, of course Agestis should be put. At the time I wrote the paper I was much occupied with Artaxerxes, and suspect that was the reason of the mistake. — Hastings C. Dent. BOTANY, The Inflorescence of Gourds. — The gratifica- tion which I feel at the interest excited by my note on the inflorescence of gourds and pumpkins is tempered with regret at finding that I did not express myself with sufficient clearness to be understood by your correspondents, who seem to think that I had said that fertile blossoms were expanded before any staminate flowers had appeared on the same plant ; HARD WICKE'S S CIENCE - GOSSIP. 65 ■ which indeed was not my meaning. My observations do not at all contradict those of Mr. Beal. What I notice as remarkable is this: — In regular indefinite inflorescence, when a flower appears in the axil of every leaf, the flower in the axil of the lowest leaf is the oldest, and therefore opens first ; then, that in the axil of the leaf next above it ; and so on, as in the pimpernel. In gourds and pumpkins, this order of expansion is observed only among flowers of the same sex. Sup- pose, then, that a plant bear ten flowers, the first nine of them may be staminate flowers, the tenth, pistillate. If a flower open every day, as is usual in our climate, the fertile flower would not open in the ordinary course till the tenth day. Instead of that, however, it will be found expanded on the fifth and sixth ; it may be simultaneously with one of the staminate flowers or not, but always before the staminate flower immediately below it. Flowers of the two sexes, though indiscriminately mixed as to position on the stem, thus form two series as to the order of their expansion. I think that there are usually more staminate flowers produced early in the season, and a tendency afterwards to the production of pistillate flowers which are abortive for want of vigour in the plant to perfect them. I only remember one instance of a gourd producing a fruit blossom too early in the season to be fertilized : it was a miniature gourd, which produced a fruit, as the result of that blossom, with no seed. — John Gibbs, Chelmsford. ASPLENIUM SEPTENTRIONALE AND GERMANI- CUM. — About ten years ago I found Asplenium septen- trionale in the Beddgelert district. There were a great many plants growing within a limited area, but the spot was very difficult of access, and it was, perhaps, owing to this that they had escaped observation. I brought away four or five specimens, and took fronds from some other plants, but they were all septen- trionale. I did not look specially for Germanicum, certainly, but, as far as my observation went, there was not a plant of it there. At the same time I quite agree with the observer whose opinion Mr. T. Belt quotes, that a very close relationship exists between these two species. — Edward Hart Vinen, M.D. Gentiana ACAULis. — In the Autumn of 1875, I was staying, after illness, at the Freshwater Hotel, Isle of Wight, and, during my first ramble over the Downs, I gathered two species of Gentiana, which I sent to my friend Mr. Varenne, of Kelvedon, who has a fine collection of British plants, and is a first-rate botanist. After reading the communication in your last, about the appearance of Gentiana aeaulis in that locality, I wrote to Mr. Varenne to let me know what species I sent him, and I enclose his answer : — "Dear Dr. Bree, I am much afraid the lady who wrote in Science -Gossip made a mistake about the Gentiana aeaulis in the Isle of Wight. You collected two specimens of gentian there, in September, 1S75, as forwarded to me. One was a stunted state of Gentiana Amarella, and the other, equally dwarf, was a specimen of Gentiana campestris, probably. Both are many-flowered, and by that character very different from Gentiana aeaulis. — E. G. Varenne.'" — Dr. Bree. Gentiana acaulis.— I would beg to remind your correspondent, "J. C. M.," with reference to some remarks inserted in your recent issue, that the flower- ing of plants vastly depends upon elimatal influences. There is no reason because G. acaulis blossoms on the Swiss Alps towards the middle of June till July, that therefore it should flower here at that time ; the con- ditions are totally dissimilar. Many years ago I noticed several blossoms of this lovely plant, in a friend's garden in East Sussex, during the month of September. It has been stated that " Alpine flowers are signalized by the intensity of their colours, this increase of brilliancy in tints being attributed to the pure snow-water nourishing the roots, to the greater excitement of the light, and refined purity of the air." Not only so, there are other forces at work which should cause an earlier floral development. They get a longer and more persistent rest in winter, and pro- tection from the carpet or blanket of snow. During my travels in Italy, in February and March of 1865, vegetation appeared to be most backward ; but on my return home by Florence, in early April, the vege- table world was in full luxuriance of leaf and beauty. Whilst journeying over the Mont Cenis pass, numerous flowers were in full bloom, some peeping through patches of snow, others in places where it had melted. Nothing of the kind existed out of doors in England. If indeed G. acaulis blossoms with us in June and July, as it is said to do on the Alps during those months, the remarks by Treviranus, quoted by Dr. Lindley in his "Theory and Practice of Horticulture," might hold good: — "It is well known that plants from the northern half of the world, when they have become naturalized in the south, have changed almost entirely the time of their vegetating, blooming, and fruit-bearing, so as entirely to accord with the habits of the indigenous plants of the country. Thus we find at the Cape of Good Hope oaks, alders, almond, peach, and apricot are in full bloom in August." Our best botanists, such as Mr. Bentham, I believe, maintain that G. acaulis is not indigenous here ; so it might obey the dictum as laid down by Treviranus. — John Colebrook. Gentiana acaulis (S. G. 1878, p. 18). — I hope your fair correspondent, Isabella H. Knox, will not be offended if I tell her in your pages that Gentiana acaulis is not found wild in the Isle of Wight, and. that the plants she found between the Needles and Freshwater were not Gentians at all, but dwarfed specimens of Campanula glomerata. There can be no doubt about it. Bromfield, in his "Flora Vic- 66 HARD WICKE 'S S CIENCE - G OS SIP. tensis," says of the plant, "on Freshwater Downs in various places, as near the Needles Plotel and Light- house, but scarcely an inch high, being browsed down by sheep " ; and he further adds in a note at p. 291, "On the bleak and lofty Downs, at the western extremity of the island, this species scarcely attains an inch in height, and specimens from thence were actually described and figured by Withering ("Arrangement of British Plants," 3rd ed. ii p. 282, and pi. xi., fig. 5) as a new species of Gentian, and named by him G. collina." I. H. K. may therefore ■console herself that others before her have been deceived by the same plant at the same place. — Win. Marshall, Ely. Side Lights on the Composite. — A most suggestive paper on this subject appears in the last number of the Journal of Botany by Dr. Masters. It is based on a specimen of Helenenium autumnale, in which all the florets appeared stalked and bearing opposite leaves on the stalks, the whole forming a corymb of flowers instead of the ordinary capitulum of a composite. British Marine Alg/e — Mr. H. Goole (Ply- mouth) desires us to correct a few mistakes which appeared in his communication on the above subject in our last issue, p. 40. For instance, instead of Dasya puviicea it should be D. punkca ; for Dudrisinia dudrisnagra there should have been Dudresnaia dudresnao-ia. GEOLOGY, Important Paper on the Geology of West- ern Scotland. — At a recent meeting of the Geological Society of London, Prof. Judd, F. R.S., read a most important and highly interesting paper on Scottish geology. During the seven years in which he has been engaged in the study of these interesting deposits, the author has been able to prove that not only is the Jurassic system very completely repre- sented in the Western Highlands, but that associated with it are other deposits representing the Carboniferous, Poikilitic (Permian and Trias) and Cretaceous deposits, the existence of which in this area had not hitherto been suspected ; and by piecing together all the fragments of evidence, he is enabled to show that they belong to a great series of forma- tions, of which the total maximum thickness could have been little, if anything, short of a mile. The relations of the scattered patches of Mesozoic strata to the older and newer formations respectively, are of the most interesting and often startling character. Sometimes the secondary rocks are found to have been let down by faults, which have placed them, thousands of feet below their original situations, in the midst of more ancient masses of much harder character. More usually they are found to be buried under many hundreds, or even thousands, of feet of Tertiary lavas, or are seen to have been caught up and enclosed between great intrusive rock-masses belonging to the same period as the superincumbent volcanic rocks. Occasionally the only evidence which can be obtained concerning them is derived from fragments originally torn from the sides of Tertiary volcanic vents, and now found buried in the ruined cinder-cones which mark the sites of those vents. In some cases the mineral characters of the strata have been greatly altered, while their fossils have been occasionally wholly obliterated by the action of these same igneous forces during Tertiary times. In every case, the survival to the present day of the patches of Secondary rocks can be shown to be due to a combination of most remarkable accidents ; and a study of the dis- tribution of the fragments shows that the formations to which they belong originally covered an area having a length of 120 miles from N. to S., and a breadth of 50 miles from E. to W. But it is impossible to doubt the former continuity of these secondary deposits of the Hebrides with those of Sutherland to the north-east, with those of Antrim to the south, and with those of England to the south-east. From the present positions of the isolated fragments of the Mesozoic rocks, and after a careful study of the causes to which they have owed their escape from total removal by denudation, the author concludes that the greater portion of the British Islands must have once been covered with thousands of feet of secondary deposits. Hence it appears that an enormous amount of denudation has gone on in the Highlands during Tertiary times, and that the present features of the area must have been, speaking geologically, of comparatively recent production- most of them, indeed, appearing to be referable to the Pliocene epoch. The alternation of estuarine with marine conditions, which had, on a former occasion, been proved to constitute so marked a feature in the Jurassic deposits of the Eastern Highlands, is now shown to be almost equally striking in the Western area ; and it is moreover pointed out that the same evidence of the proximity of an old shore-line is exhibited by the series of Cretaceous strata in the West. Although the comparison and correlation of the Secondary strata of the Highlands with those of other areas, and the discussion of the questions of ancient Physical Geography thereby suggested, are reserved for the fourth and concluding part of his memoir, Prof. Judd took the opportunity of making reference to several problems on which the phenomena now described appear to throw im- portant light. In opposition to a recent speculation, which would bring into actual continuity the present bed of the Atlantic and the old Chalk strata of our island, he points to the estuarine strata of the Hebrides, as demonstrating the presence of land in that area during the Cretaceous epoch. He also remarks on the singular agreement of the conditions of deposition HARD WICKE 'S S CIENCE - G OS SI P. 67 of both the Silurian and Cretaceous strata of the Scottish Highlands and those of the North American Continent. But he more especially insists on the proofs, which we now have, that the Highlands of Scotland, as well as the greater part of the remainder of the British Islands, were once covered by great deposits of Secondary strata, and that the area has been subjected to enormous and oft-repeated denu- dation. He dwells on the evidence of the vast quantities of material which have been removed subsequently to the Mesozoic and even to the Miocene period, and he maintains the conclusion that many, if not all, of the great surface-features of the Highlands must have been produced during the very latest division of the Tertiary epoch, namely the Pliocene. The Fossil Fungus. — I have frequently observed that, in being called upon to answer criticisms of my work, I have more commonly to reply to statements I have never made (or even thought of) than to defend the position I have really taken. In your January number (p. 21) P. Martin Duncan combats the idea that Peronosporites "is perhaps the oldest fungus on record. " I have never made any such statement, so I need not reply. Your correspondent then quotes instances of Algae being found in older rocks than the Palaeozoic, but as my description refers to a fungus, and not to an alga, the instances brought forward by P. M. Duncan, though of the greatest value and in- terest, refer rather to true algce than fungi, i.e., if the distinguishing characters between the two, and now generally received, are to hold good. The letter in your February number (p. 41), signed "John Butter- worth, Goats Shaw, Oldham," is of a very different character, and hardly demands an answer. This gentleman writes to "dispute " my " claim to its dis- covery," because he " discovered " it {i.e., the Pero- nosporites), and read a paper upon it (at Manchester) which was not published. Now, I have never set myself up as the "discoverer " of the fossil fungus ; I claim to be nothing more than the humble drudge who pored over the fungus preparation for some weeks, made out the structure of the mycelium and fruit, its affinity with living plants, and then attempted a de- scription and illustration. If J. Butterworth did all this in 1874-5, I re g r et, with him, that some per- manent record was not made of his work " in some leading journal." In my paper I distinctly stated that Mr. W. Carruthers, F.R.S., the Keeper of the Botanical Department of the British Museum, was the "discoverer" of the plant, as he certainly was — and something more. The parasite has been known by this gentleman for many years. J. Butterworth states that a member of his Society identified his fungus "as Peronosporites" in 1874-5. How this learned "member" did so, I am at a loss to know, as no such genus as Peronosporites existed before last year, when the name was given by me to the parasite in question. I have certainly had something more than a " casual " view of the slide, as I have had it in my own house for six months, and have it now. — Worthington G. Smith. The Fossil Fishes of Sussex. — At a recent meeting of the Eastbourne Natural History Society, Dr. Ward read a paper on ' ' The Fossil Fishes of the District." They are met with chiefly in the Upper and Lower Chalk strata of the Downs at Holiwell ; others in the Greensand and Gault ; and a few in the Wealden beds. Dr. Ward's paper was illustrated by specimens. NOTES AND QUERIES. The Importation of Humble Bees into New Zealand. — Perhaps some of your correspondents could give some valuable hints as to the best method of importing humble bees into New Zealand. The farmers there are anxious to introduce them, as they are said to be necessary for the successful cultivation of clover, which they aid by carrying about the pollen. An attempt was made, I understand, to bring over a number of the insects, but they all died an the way, and it has now been proposed to bring over the eggs. But if, as I believe, the larvce are hatched in cells, and fed by the parent bees until entering the pupa-state, this idea would not seem to promise better success than the former. Could the perfect insects be transported in a torpid state ? Or would it be possible to naturalize them by introducing the pupa;? I hope some practical solution of the auestion maybe given by some contributor. — Charles B. Moffat. Crayfish in Cumberland. — Some of the small runners into Croglin Water, a tributary of the Eden, abound with crayfish. I had many opportunities of seeing them last spring. The inhabitants of the dis- trict have a legend that the "crabfish" were intro- ! duced by some member of the Featherstonhaugh j family, but so long ago that I could gather no precise information as to the date. I think it improbable that they are indigenous, but not knowing anything of their geographical distribution, I shall be glad of any information on the subject. — W. Duckivorth, Grey-street, Carlisle. Natterjack Toad on the Shores of the Solway Firth. — -While staying at Bowness on Sol way in August last, I found quite "a colony of the Natterjack. On one part of the shore, where the ground was damp, nearly every stone of moderate size I turned up had a natterjack below, sometimes two. There was no mistaking it, the yellow line down the back being ample means of identification. It would be interesting to know if ever it has occurred thus far north before, as I was under the impression that it belonged only to the east and south of Eng- land. — IV. Duckworth, Grey-street, Carlisle. The Pigeon a Polygamist. — In Mr. Dixon's interesting account of the pairing instinct of birds, ; he says, ' ' I have once observed the rook practising polygamous propensities. We have a pigeon of the ' horseman ' variety which is a confirmed polygamist. I observed this during the course of last summer repeatedly." Is this peculiarity in the pigeon known to ornithologists as a common or uncommon occur- rence ? Does this present to view an inherited energy, or only applicable to the surrounding circumstances ? — ill. King. 68 HARD JVI CKE ' S S CI EN CE-GO SSI P. Query respecting Sea-Anemones. — Sea- Anemones, like other animals, require to " be fed." But, unlike most other domestic animals, this need not be done daily. Once a week will do in most cases, though some like it oftener ; but if it fouls the water more harm than good will accrue to the animals by over-feeding. No doubt they derive some nourishment from organisms in the water, but these should be microscopical, and not perceptible, i. e., the water should even be sparMingly clear and colourless ; if not, there is something wrong. Find out the cause of this, and set it right without changing it : time and patience alone will often effect this. Or it may be aerated or circulated with- out changing. In no case change it, unless it has become chemically poisonous. Organic impurities can always be got rid of by oxygenation, or a process known as cremacausis, or burning up. Thus, living animals give out carbonic acid gas, and certain effects of food, which, if allowed to accumulate, generate carburetted or sulphuretted hydrogen. But living plants take up these poisonous gases (assimilate the carbon to build up their tissues), thereby rendering them harmless, and liberate the free oxygen again for the animals to breathe. This goes on ceaselessly under the action of light, and this balance of animal and vegetable life is the grand governing principle of all aquaria, great or small. If W. T. If. C. Trome wishes to keep a scientific aquarium, he will remember this, and never change the -water. He will thus be able to keep his animals more happily, healthily, and easily. But the anemones must be fed. Mussel or oyster flesh is best, handed to each individual by a pair of wooden forceps, in pieces varying in size from a pin's head upwards, say, to a quarter of a mussel, according to the size of the anemone ; experience will soon show how much. Under proper conditions this is nearly all assimilated. If it is rejected, perhaps the pieces are too large, or the water too hot or too cold, or the animals too crowded, — most probably the latter with beginners. The thing is to find out how many animals will live and flourish in a given space : keep these and no more. If oysters or mussels or fish cannot be easily procured for food, butcher's meat will do, but not so well. Much depends upon the distribution of the water. The smaller the depth in proportion to the size of the animals the better; because the greater the surface aeration, and, as oxygen is perpetually wanted for the animals to breathe, and to purify the water, the more regular the supply the better. This may be accelerated by stirring in air, say, with the stick of a camel's hair pencil, this may be done daily, especially so the day after feeding, to prevent or dissipate any cloudiness in the water. The brush at the other end will be useful to pick up any refuse bits, and skim off the mucus which otherwise collects round the base of most anemones, and would in a state of nature be washed away and dissipated by the waves. We collect them into a cup of water, and throw them away, and thus prevent the accumulation of untidi- ness, in small domestic aquaria of still water. In large aquaria, as at the Crystal Palace, impurities are dissipated by a ceaseless flow of water from tank to tank, down to the underground reservoir, to be pumped up again fresh and clear for ever ; and I know of no cheaper or better guide than the sixpenny and twopenny handbook to this successful institution ; but if \V. T. H. C. Trome will state his aquarium dimensions and difficulties, we may be able to tell him more in Science Gossip. Hardy anemones are about the easiest animals to begin with. Ours live and flourish, year after year, in shallow tanks, or glasses, commercially known as "anemone pans," or pastry pans. In all cases growing plants cannot be dispensed with, and spontaneous vegetation is found best, because best suited to each separate situation. To prevent this growing to excess, and causing the water to become green, avoid too much direct day- light, by using blinds or screens. Blue paper will sometimes serve sufficiently. — G. S. Botanical Localities. — The following is a fairly accurate description of the localities inquired for by Mr. H. Morton, in the January number of Science Gossip : — Shotover Hill is z\ miles E. of Oxford ; Cowley is a village not far from the latter place, 2 miles S.E. of Oxford ; Bagley Wood lies 2.\ miles to the S. of Oxford and 3 N. of Abingdon; Wych- wood Forest (Winch wood being apparently a mis- print) lies 14 or 15 miles to the N.W. of Oxford (nearest station, Charlbury, on the Oxford and Worcester line) ; Cornbury Park is situated at the N.E. corner of Wychwood Forest, and half a mile S. of Charlbury station. I have been unable to discover the exact situation of Cornbury Quarry, but presume it must be in the immediate neighbourhood of the Park. Sunninghill Wells is in the extreme S.E. corner of Berks., 6 miles S.S.W. of Windsor, 6W. of Egham, *j\ E. of Wokingham, and nearly a mile from Ascot station. Most of these places are, as Mr. Morton says, good localities for plants (I knownothing about insects), and he may perhaps be interested to know what plants may be found there. The fol- lowing are the names of a few, which I give partly from my own observation, partly from " Walker's Oxfordshire Flora." Shotover Hill, Polcmonium cceruleum, Droscra rotundifolia, Gentiana Amarella, G. campestris, Trifolium subterraneu?n, Haboiaria bi folia, H. viridis, Epipactis palustris, Cephalanthera grandijlora ; Cowley, Geranium rotundifolia, Pin- guicula vulgaris, Anagallis cczrulca, A. tenella, Fri- tillaria mcleagris, Orchis conopsea ; Cowley Bog is also very rich in Scirpi, Carices, &c. ; Bagley Wood, Irisfastidissima, Convallaria viajalis, Luzula congesta, Neottia nidus-avis ; Wychwood Forest, Asperula cy- nanchica, Atropa Belladonna, Orchis pyramidalis. If Mr. Morton wishes to learn more about the good botanical localities in this neighbourhood, I shall be very happy to correspond with him. — H. IV. Trott, 24, Walton-street, Oxford. Entomological and Botanical Localities. — (Reply to H. Morton.) (Winchwood should be Wychwood ; Sunninghill Wells should be Sunning- well Hill. ) Four of the places inquired for are within a short distance of Oxford — say two to four miles Shotover and Cowley are on the Oxfordshire side of the Thames valley ; Sunningwell and Bagley Wood on the Berkshire side. Shotover may be reached by rail to Wheatley, whence a pleasant walk of five miles over the hill to Oxford. Sunningwell and Bagley form part of an ironsand range of hills bound- ing the Thames valley, between Abingdon and Oxford, and are easily accessible from Radley sta- tion. Cornbury Park and Wychwood Forest adjoin Charlbury station on the West Midland line, about twenty minutes' ride per rail from Oxford. — E. C. Davey, JVantage. FAIRY Flax (No. 15S, p. 44), and Fairy Lint, are names which, according to Johnston, in his " Botany of the Eastern Borders," are given in the border-land to Linum ca/harticum, L. The district comprehends "Berwickshire, the Liberties of Ber- wick, N. Durham, and the immediately adjacent parts of Northumberland and Roxburghshire." I should think the name, " Fairy Flax," is given to this HARDWICKE'S SCIENCE-GOSSIP. 6 9 pretty little plant merely from its delicate appear- ance, being, in fact, a miniature or fairy imitation of the common flax in everything but the colour of the flowers. Still there may be some legend connecting it with the fairies, and, if so, I shall be much obliged to any correspondent who can furnish me with any folklore of Fairy Flax illustrative of its name or other- wise. " E. L. S. "may be interested to know its other English names, though, as far as I am aware, it has fewer than most British plants. Gerard calls it Mill Mountains, which Prior, in his " Popular Names of British Plants," derives from the Lat. Cha-moel- inum montanum, Gr. , xcrjuat-Xtvov, Ground-Flax. In Cumberland, Shropshire, and Cheshire it is called Mountain Flax, being frequent in hilly and moun- tainous districts : and in the latter county it is also known as Purging Flax, a translation of its scien- tific name, or vice versa, and it is so called from its reputed cathartic properties. In Cheshire, however, I have found that herb-doctors are not very particular what the effects of a herb may be, so long as it is a herb, and they generally administer it as a stomachic on account of its bitter taste. — Robert Holland. The Nebular Theory. — It has been discovered by M. Cailletet, and M. Raoul Pictet that our air can produce water; they have also converted oxygen and nitrogen into liquids, and have produced a vapoury cloud from hydrogen, under great pressure and ex- cessive cold. Under the nebularh ypothesis of La- place, the origin of water is nowhere satisfactorily accounted for. Mr. Proctor has told us that it is to all intents and purposes demonstrated that the nucleus of this earth was formed from a nebulous condition. The German astronomer, Gruithuisen, adopting the same primary condition, formed this earth by the slow aggregation of cold matter, leaving the water origin unaccounted for. By this new discovery, it seems that all the conditions for producing the water were present under the latter system. The light and heat had not penetrated the nebula ; there was therefore intense cold, as there is now in the air above us and at the sea-bottom. As the solids of the nebula slowly condensed, they caused great pressure. As the gases are expressed now in water from the earth, so we may infer that they were at the beginning. In The Mail of January 9th, 1878, I find, "It is only a question of carrying these experiments further in order to reduce these liquid gases to the solid form." We have then a nebulous mass filling the whole space now occupied by the atmosphere, the water, and the solid earth. Under the universal law of gravitation, the heaviest molecules of the mass subsided towards their centre — as these molecules condensed, they produced pressure. Hence we have the result in our quasi-solid earth, the water resting on it, and the air enveloping the whole, the entire system resulting naturally from the nebu- lous mass, the sunlight and heat reducing or refining the atmosphere to its present condition by causes well known. — H. P. Malet, 8, Via Venezia, Florence. Harebell (No. 158, p. 47). — There are two good reasons why this name should not be derived from the hairlike stalks upon which the flowers hang. The first is that the spelling " Hairbell " is of compara- tively modern introduction, inasmuch as the older writers, such as Gerard and Parkinson, spelled it " Harebell," though it must be confessed that the spelling of the older herbalists does not go for very much. The second reason is that when those old writers do make use of the name, they are not speak- ing of Campanula rotundifolia, but of Scilla nutans. When the name was transferred in books from Scilla to Campanula I am not aware. Some choose to spell the word "Airbell," from the supposition that it refers to the colour of the flowers being similar to the air or sky ; but the same objections apply to this also — the first does, at any rate. As a matter of fact, however, the name Harebell or Hairbell is not the name in most general use, except in books, for either plant. In fourteen different stations in England and Scotland I only have Hare — or Hairbell recorded for Campanula in three, viz , Yorkshire, Cheshire, and the West of England ; and in twenty-five counties I have the name applied to Scilla in but one, Devon- shire. Lyte is, I think, the oldest writer who gives an English name to C. rotundifolia, and he calls it "Blewbelles," which is still one of its commoner names, but which is also as often given to Scilla. It would seem, then, that Scilla nutans is the original "Harebell"; that it was "hare," not "hair"; that the name has been transferred to Campanula rotundi- folia, and the spelling altered in some cases in order to account for the name, because its stalks are delicate and hairlike. I do not possess a copy of Gerard to refer to, but it is possible he may say why Scilla is called " Harebell."— Robert Holland. Pairing Instinct of Birds. — As to the question of birds using the nests of other species, and why not of the same species? It will invariably be found that the selected nests are old ones, and belong to birds who only once use them for their purpose. In the case of the House Sparrow using the nest of the Martin, the bird has utilized it for its purpose, in the absence of the Martins, and, upon their return, keeps possession of the nest by "force of arms," and 'con- sequently compels the rightful owners to build else- where. I may also mention that sparrows may be found breeding the year throughout, and retain their old nests in many, if not all cases. There is a stately fir-tree in my neighbourhood containing several sparrows' nests. They have been there for several years, and I have not the least doubt but they have been tenanted by the same pairs of birds, as the nests are always equal in numbers, and should one of the nests be destroyed, it will again be built in a more inaccessible situation. Now, if birds used the nests of their own species indiscriminately, their ranks would be fraught with strife and discord, which I have, as yet, failed to observe. All birds would con- sequently strive to obtain an old nest, rather than be at the trouble of constructing one for themselves ; fierce combats would prevail, and then, no doubt, the " survival of the fittest " would in one sense be correct. Again, all birds work as influenced by their respective instincts. The Martin, having once con- structed its abode, remains, through the agency of instinct, at rest, as far as nest-building is concerned, until that structure is damaged, or forcibly taken from it, as in the case of the sparrow, when it must repair its handiwork, or make new quarters elsewhere, if not able to repel the aggressor. How can we explain, except through this peculiar instinct, the annual return of the same number of birds, and the little wanderers alighting upon their temporary homes shortly after their arrival; or, if their nests have been destroyed, clinging to the old sites, and, as the breed- ing season arrives, constructing new nests on the ruins of the old ones? A word as to the circumstance mentioned by your correspondent, "G. T. B." Ihave no doubt that he is quite correct in believing that the pair of blackbirds laying in the same nest three successive years is one and the same pair. But did not the nest undergo repairs? I have never known a nest of this bird, however com- pactly built, be fit for its purpose again, even the next season, let alone three successive seasons. 7° HA R D J VI CKE 'S S CI EN CE-GO SSI P. However, as no such instance has come under my own observation, I decline making further remarks ■on such instance. The blackbird pairing with the song-thrush, if correct, is no doubt a very exceptional occurrence, and can only be explained as a mon- strosity, which this, and all similar instances, un- doubtedly are, and which, however unexplainable, are repeatedly found in various birds and animals. I will also mention the fact, that the pairing of annual birds is not so closely linked with the vernal year as is currently supposed. The hedge-sparrow, through what I have observed, invariably pairs late in December. A few weeks prior to that date the birds are solitary; they gradually become more social, and very garrulous ; and now, at the time of writing this, all specimens seen are invariably in pairs. I think Mr. Parsons somewhat mistakes my object in saying, "the only way is by polygamy." I do not for a moment entertain the idea that all birds could multiply quickly by practising it, but only those which I have stated (first section of gallinaceous birds), and for what that gentleman brought forward the human race as examples, bearing on the present subject, I am at a loss to imagine. As to polygamy occurring ill species under domestication, I ask why the domestic swan (C. olor) remains in a strictly monogamous state for life, although, in mafiy cases, the males must be in the minority. I have known a case where three of these birds were kept (two females and one male). Now, the male bird paired with one of the females and remained united to her, and never bestowed any of his affections upon the more unfortunate female. Ducks always show a polygamous instinct when in confinement, if the females do not exceed the males. Again, the do- mestic pigeon, though the females may far exceed the males, a polygamous instinct will never be manifested, the male birds pairing in due season, and assisting to rear their offspring with as much care as the female birds. It must also be remem- bered that the males of polygamous birds are in- variably of bright, if not conspicuous colours, while the females closely resemble the colours of surround- ing objects. The males, too, are the best eating, invariably the largest, and consequently the most liable to capture, and the most prized as articles of food ; while the females are more often rejected, or never discovered in their haunts. It will thus be seen that the females would exceed the males, and, did no such polygamous instinct exist within them, circumstances the most disastrous would arise with deadly certainty to their race. Thus, I again say, that through one of the wisest provisions of nature, these birds are able to afford us sustenance, and at the same time maintain their position amongst their •congeners in the struggle for existence. — Charles Dixon, Hecley, near Sheffield. The Pairing Instincts of Birds. — Seeing something in January part of Science-Gossip, about the pairing instinct of birds, I thought the following might be interesting. About April of last year I had a brood of chickens, and amongst them I reared one duck. When they grew old enough I killed all the cocks except one, for which one the duck has shown a strange attachment, following it all about. The cock has reciprocated and continued this sexual attachment, showing a decided preference for the duck over the hens. I have, unfortunately, lost the duck, but the night before, the cock, instead of going up to roost beside the hens, as it generally did, slept on the ground beside the duck. It is impossible now to say what would have been the result of their attachment ; but perhaps some of your readers would say whether they have observed the like. — John Baillie, Sunderland. Herrings. — Can any of your numerous readers inform me, what are the signs by which some fisher- men know where large bodies of herrings are swimming, even when their boats are sailing rapidly through the water ? — J. W. Dredging. — Would some of your correspondents be so kind as to give me some information on dredging not far from the shore, also as to what books would be useful in determining the objects I am likely to find?— R.G.C. Curious Modes of Blossoming. — I have in my garden here a Rhododendron which grows near the house, and is sheltered by it from the south and west, but has no shelter from the north or east. For the last three years it has blossomed about this time of the year (January). There have been several flowers this year, but all on the same side of the tree, and near together. Last year they were on the other side, towards the house, and were a little earlier (at Christ- mas), and less numerous, but this year there is no shelter whatever from the north and east. The flowers are a beautiful pink, like the flowers on the same tree in the summer. There is also a yellow jasmine, which grows in the drawing-room balcony, now in blossom, and neither of these plants has any sun during the winter, and not much in the summer, owing to their position. — L. T. Caves in Somersetshire. — Nearly all that is known of these caves is summarised in Mr. H. B. Woodward's "Memoir on the Geology of East Somer- set, and the Bristol Coalfield," published in 1S76 by the Geological Survey ; but as ' ' Somersaeta " and other readers of Science-Gossip may not have ac- cess to such expensive luxuries as Survey Memoirs, I venture to offer a brief epitome of the subject. The Lamb Cavern near East Harptree is now closed. It seems to have been artificial, but was fully described in Collinson's "History of Somerset" (1711). In Burrington Combe are several caverns, four of which, viz., Aveline's Hole, Plumley's Den, Whitcombe's Hole, and the Great Goatchurch Cavern in Lower Twinbrook Ravine, were explored by Professor Boyd Dawkins and Mr. W. A. Sandford. (Geol. Mag. vol. ii. p. 43 ; Rep. Brit. Assoc, 1864 ; Proc Somer- set Arch, and Nat. Hist. Soc, partii., vol. xii. p. 161.) They obtained remains of sheep, ox, reindeer, roe- deer, ibex, goat, mammoth, bear, water-vole, wolf, fox, badger, rabbit, hare, pig, mole, birds, and, in Aveline's and Whitcombe's Holes, of man. The human bones encrusted with stalagmite were evidently buried. There are, or were, also caves in the Carboni- ferous Limestone at Weston-super-Mare, Loxton, the western end of Banwell Hill, and near Hutton. At Uphill there are caves in the same formation, in which remains of mammoth, deer, rhinoceros, wolf, ox, horse, bear, otter, pig, hycena, fox, polecat, water- vole, mouse, birds, and man, have been found. (Pooley, Geologist, vol. vi. p. 331 ; E. C. H. Day, Geol. Mag., vol. iii. p. 118 ; W. W. Stoddart, Proc. Bristol Nat. Soc, vol. v. p. 37.) There are several caverns at Cheddar, but Cox's is, though not large, perhaps the most beautiful in England from its stalac- tites. Bones of bear, deer, ox, horse, and man, were recorded from a cave on the summit of the Mendips here, by Mr. Long, in 1838. (Brit. Assoc. Rep. 1838, p. 85.) Wookey Hole, near Wells, more correctly spelt Okey (from British ago, a cave), is only second to the Peak Cavern in Derbyshire in point of size, being nearly six hundred feet long, and, in one HARD WICKE 'S SCIENCE- G OSS IP. 7* part, eighty feet high. It is in the Dolomitic Con- glomerate of the Trias. Messrs. Dawkins and Sand- ford found here bones of hyaena, lion, bear, wolf, fox, mammoth, two species of rhinoceros, horse, Irish deer, red deer and reindeer, and human im- plements of flint, chert, and bone, of contemporary date. (Dawkins, Q. J. G. S., vol. xviii. p. 115; vol. xix. p. 260 , Proc. Somerset Arch, and Nat. Hist. Soc, vol. xi., part ii., pp. 197-219; and Geol. Mag., vol. ii. p. 44.) — G. S. Bonlger. The Furniture Beetle. — I can mention another instance of destruction to furniture by the " furniture- beetle." Two years ago I found them working and living in the frame of a sofa that has been about thirty years in my possession. The sofa was taken out of the house, and during three days was frequently brushed with very strong carbolic acid. Last week I examined it, and found fresh borings of this pest. The sofa has a beechwood frame, 1 in. thick and faced with mahogany half-inch thick. The insects have not touched the mahogany, but in many places have bored close up to it. I am now having the beechwood re- moved, and mahogany substituted. Can anything be devised (short of destroying the wood) that would kill these destructive insects ? I fear that their habits render liquid applications unable to touch them or their eggs. — T. Hughes. The Freshwater Aquarium. — Scarcely a number of Science-Gossip appears but contains queries or notes on the above subject ; and, judging from some of these queries and the replies to them, aquarium-keeping on a small scale would appear to the tyro an extremely difficult task. We are told (" Ben Plant," July, 1877) to limit the plants to three species, molluscs to two, and reptiles to exclude en- tirely. Others have complained of sticklebacks eating all their snails, and of killing each other. My own opinion is that there is nothing in connection with practical natural history involving less trouble than aquarium-keeping. In giving this opinion, it is true that it is not the result of so many years' experience as some of your correspondents can boast, but it is based upon seven or eight years' successful work. With regard to the vessel which is to constitute the aquarium, I believe this to be of minor importance, and that, so far as the inhabitants are concerned, a washing-tub will serve as well as an elaborately con- structed plate-glass tank, though, of course, the latter is the best adapted for observation. I think the chief charm (and use also) of an aquarium lies in the fact that we see various creatures living under natural conditions. To make the conditions as natural as possible, I would introduce most of the inhabitants of an ordinary pond ; the exceptions would be only such species as prey inordinately upon the others. Such, as the aquatic coleoptera and hemiptera, and the larvae of dragon-flies. I would admit all the pond gasteropods ; the two species of newts {cristalus and punctatus), and I certainly have not found it necessary to limit the species of plants. The larvae of the caddis-flies are interesting and amusing, and I cer- tainly cannot agree with " S. " as to the difficulty of rearing them to their final stage. The aquarium must have walls, and as the caddis-worms have legs, they can therefore have no difficulty in reaching the surface. It is no uncommon thing, at the proper season, to see several escaped caddis-flies hovering about my aqua- rium. "P. E. C." is troubled because the stickle- backs eat his snails. His best plan would be to feed the fish with small worms, until the snails have had time to increase in number ; this they will soon do at such a rate as will defy the most voracious stickleback. Difficulties of this kind only occur at starting ; things soon right themselves, and the ' ' balance of power " is maintained. " S." thinks sticklebacks are the most troublesome inmates of an aquarium. I would sub- stitute " interesting " in place of "troublesome," and I think Mr. Scott (Jan., 1878) has given " S." the correct reason of his failure in keeping them. I believe that all these difficulties are caused by having the in- mates unnaturally select. With a plentiful and varied supply of vegetation, a host of Entomostraca and In- fusoria will be introduced, which will form an inex- haustible food supply to the fish. The decaying plants and animal exuviae will form a fine mud at the bottom, in which the pretty little bivalve, Cyclas cornea, annelids, &c, will find a congenial home. The water should not be changed or disturbed. In spite of the mud the water will neither be turbid nor odorous, and the student can observe the habits of the inmates under natural conditions. An aquarium, so conducted, may not look so ornamental as an elegant glass vase with a floor of scrupulously clean gravel, above which two or three lazy gold-fish are slowly swimming round a solitary plant ; but it will afford the microscopist or biologist excellent opportunities of study. — Edward Step. NOTICES TO CORRESPONDENTS. To Correspondents and Exchangers. — As we now publish Science-Gossip at least a week earlier than hereto- fore, we cannot possibly insert in the following number any communications which reach us later than the 9th of the previous month. W. Wakefield. — ■ Your mosses are : — 1. Hypnum nndii- laticm ; 2. Neckera crispa ; 3 and 4. Hypnum sericeum. W. A. C. — Your specimens are : — 1. Physcia parietina. ; 2. Evemia prunastri (both lichens) ; and 4. Hypnum squar- rosum (a moss). F. T. M. — Your moss is Hypnum confertum. M. Skilton.— Your specimens are : — 1. Hypnum riparium ; 2. Bryum capillare ; 3. Hypnum rutabidum. J. C. Johnstone. — Your specimens are: — 1. Dicranella heteromalla ; 2. Rhacomitrium heterostichum ; 3. R. elliptic um ; 4. Orthothecium rufescens ; 5. Bryum criidum ; 6. B. bimutn ; 7. Rhacotnitrium lanuginosum . G. S. — Apply to the London Stereoscopic Company, Regent- street, London ; or to James How & Co., 5, Bride-street, London; or C. Baker, 244 and 245, High Holborn, London; or J. H. Steward, 406, Strand, London, and inform them of the kind of lantern slides you require. C. Swatman. — The article you refer to has not yet appeared. C. Harris. — The following are the names of the zoophytes sent:— 1. Flusta ? 2 and 3. Sertularia polyzonia ; 4. Sertu- laria operculata ; 5. Antennularia antennina. A. W. P. — We do not think your chrysalides will harm under the circumstances. A Constant Subscriber. — A facsimile reprint of Walton's " Compleat Angler" has been issued by Messrs. Eliot Stock. Frank Buckland's " Popular History of British Fishes " is cheap and good. Couch's "British Fishes" is our best and largest book on the subject. T. Q. C. — The fungus is called Peziza autaiitium. J. K. — Your sponge specimen is Halic/iondria (or Chalitia) oculata. The Botanical Exchange Club. — Those members who may be still waiting for return parcels are requested to bear the delay, which has been owing to the severe illness of the Secretary. No time will be lost in distributing the parcels as soon as possible. W. B. — The present address of the South London Entomo- logical Society is the South Metropolitan Temperance Hall, Blackfriars-road, S.E. K. D. (Almondsbury). — Your shells are : 1. Clausilia Zaminata ; 2. Balia perversa ; 3. Cochlicopa lubrica ; 4. Bulimus ; 5. Pupa marginata ; and 6. Siiccinea putris. _ . J. Sims. — The "coloured matter" sent was doubtless iron oxide, produced perhaps by the decomposition of the argillaceous carbonate of iron nodules often so abundant in the coal mea- sures. The piece of limestone shale is of carboniferous age, and is impressed with Pt-oducta, Ortkis, and Rhynconella. R. M. Christy. — We have no doubt that a published list of British marine shells for labelling cabinet specimens, &c, may be had of Van Voorst, publisher. A cheap book on bird and animal stuffing is that published by F. Warne & Co., price one shilling. 72 HARDWICKE'S SCIENCE-GOSSIP. H. Haines.— Your shells are all correctly named, and many of them are most excellent examples of their kind. G. A. Holt.— The object on Briza media was not a fungus, but looks like one of the pollen masses of an orchid, transferred by some insect. J. Tempeke. — The micro-fungus on leaf of Lavatera sylvestris is Puccinia malvacearunt, Corda. F. C. Kelland. — Your micro-fungus is Phragmidium mucronntum, Fr., see Dr. Cook's " Rust, Smut, Mildew, and Mould." , Geo Clinch.— The fragment of fossil wood sent appears to be from the Portland beds, but it is impossible to tell from such a small piece. The fossil from the chalk is not a tooth, but part of an encrinite. T. W. B.— The drawings sent us for identification are :— No I. Pleurosigma ; 2. Stephanodiscus ; 3. Amphora avails; 4. is not a diatom ; 5. Globigerina is an interloper. It certainly did not live with the diatoms, which are all fresh-water forms. J. Cunnack.— Masters's " Vegetable Teratology ' was pub- lished by the Rav Society. A. B. C.—Marchantia should be pronounced Markantia. EXCHANGES. Send mounted or unmounted material (good) for various Diatomaceous Earths, to W. Wood, 25, Gower-street, W.C. Monotropa /ivpopitys offered for 3, 13, 14*, 15. 33. 3 8 > 9°, IO4, III, Il6, 117, 151, l62, 187, 195, 209, 2l6, 220j_222, 227, 251^, 275, 287, 343, 351, 379, 452. 466, and 474; and Cnthmum maritimum for 411, 413. 4M» 4 I 5, 421,. 422, 43°. and 4°9- — E. W. Andrews, University School, Hastings. Several duplicate slides, well mounted, Diatoms in situ, fruited Marine Alga, Holothuria plates, and other interesting marine objects ; some choice unmounted material in Diatoms, Foraminifera, Zoophytes, Holothuria, Alga:, &c. &c. Wanted, Magic Lantern, first-class Slides, or Cash. Will send mine on approval— T. McGann, Burrin, Ireland. For exchange : 690 foreign stamps (in book), all difierent, ot 95 countries, and all genuine. Wanted, Lepidoptera or Eggs.— R. McAldowie, 82, Bonaccord-street, Aberdeen. _ _ Will exchange washings from the London Clay containing Foraminifera, Entomostraca, &c, or select specimens of larger Fossils for Bell's " Monograph on the Malacostracous Crus- tacia," Part I. London Clay.— W. H. Shrubsole, Sheerness-on- Dr. Partridge, of Stroud, will exchange Science-Gossip for 1877 for well-mounted micro slides of parasites,— fish es- pecially wanted. . „ Duplicates.— Missel Thrush, common Snipe, Water rlen, Bald-headed Cock Peewit, Pheasant, Blackbird, Song Thrush, and Greenfinch in exchange for other eggs ; side-blown eggs only accepted.— John Thorpe, 2, Spring-gardens, Middleton, Manchester. , For seeds of Blue Gum {Eucalyptus globulus) send stamped envelope to C. P. Ogilvie, Sizewell House, Leiston, Suffolk. Eight years' Science-Gossip, newly half-bound in leather, for good slides or micro apparatus.— R. Bridger, 23, Oxton-road, Birkenhead. . ., Di vtoms twenty-one fossil and sub-fossil earths (material; from various parts of the world. Good recent Diatoms wanted (material), marine species preferred. Send list to \\ . M. Paterson, Westfield-terrace, Loftus. Wanted, a half-inch objective o 40 degrees, with or with- out adjustment, made for binocular, in exchange for one of about 80 degrees, with adjustment.— W. H. P., 255, Milkwood- road, Heme Hill, S.E. Orthosira arenaria, Foraminifera, Post Pliocene, and Irom Turkish coast, Froghopper, section of Pith of Arabia, Nipnobdus lingua, spores of Platycerium alcicoma, and section oi Cane. Wanted, objects mounted or unmounted in exchange for above. — T. Watson, Bank Parade, Burnley. For Aregma bulbosum send stamped directed envelope and object of interest (Fungi preferred) to Chas. Williams, King- meade, Woolcott Park, Redland, Bristol. Malayan and Himalayan Ferns offered in exchange tor other kinds from Africa or other parts.— J. N., 14, \ ork-road, Brighton. , . , . Wanted, Lepidodendrons and other stems from the carboni- ferous system in exchange for geological, physiological, and other well-mounted slides. — M. Fowler, 20, burn-row, Slamannan, N.B. 7 th London Catalogue : Nos. 171, 812, 1071, 1074, 1403, 1492, 1600, and 1605, and others, for Nos. y, 4*. 6 *f- 2 , 3 ' *' lists exchanged. - C. A. O., 7 5, Mildmay-road, Highbury London, N. .._.., Will forward Packet of Sand containing Foraminifera on receipt of two penny stamps.— Geo. Clinch, West Wickham, London Catalogue, 7th edition: 121, 122, 130, 163, 201, 217, 238, 328, 330, 346, 363, 533, 539, 542, and others. Send list to Edwin Hepworth, 17, Spring-lane, Lees. Teeth of Saurichthys acuminatum, and other small teeth (named), from the Rhcetic bone-bed at Aust Cliff, to_ exchange for tertiary fossils, Barton series preferred.— Rev. K. Deakin, Almondsbury, Gloucestershire. Send good slides or material for Siliceous Foraminifera, fossil (rare), or Sucker-foot of Acilius sulcatus (beetle).— Wm- J. Fuller, Broad Plain Soap Works, Bristol. J. W. Bulmer, South Parade, Northallerton, Yorks, will send, post free, 50 varieties of rare Foreign Stamps for British Birds' Eggs. Exchange.— British and Foreign Shells, Fossils, Minerals, and polished specimens of Madrepones, for Dudley and other Trilobites.— A. J. R. Sclater, 4, Bank-street, Teignmouth. Exchange. — Can occasionally send Octopus, Squid, Cuttle- fish, and a great variety of marine animals to parties who will exchange for the same. — A. J. R. Sclater, 4, Bank-street, Teignmouth. Zonites purus, Z. fulvus, and a few Rotundata (var. Alba), also a few Birds' Eggs, for British Marine Species or Foreign Helices.— Thos. Hedworth, Dunston, Gateshead. Good Slides offered for unmounted material ; specially wanted, Parasites and Eggs of Parasites, Eggs of Lepidoptera, &c, also British Polyzoa, Biccellaria, Cillata.— J. D. Pepper, 15, Talbot-street, Moss Side, Manchester. For a Slide of Crystals for Polar send two good Prepared but Unmounted Entomological Objects to Wm. Sargant, Jun., Caverswall, Stoke-on-Trent. For sound pieces of Wood 8 by 6 by 4, showing bark on one side, of No. 46, 295, 297, 299, 382, 480, 482, 516, 616, 621, 830, 848, 1 125, 1201, and 1203, I will give in exchange rare British plants or micro slides.— J. Tempere, 23, Croucy-street, Col- chester. Will send specimen of Ptychogasier albus (microscopical fungus) for good plant, moss, or microscopical material. — F. Crosbie, The Chestnuts, Barnet. Wanted, recent Diatoms from Monterey Bay and Cuxhayen Mud, Diatomaceous Earth from Stoneyford, County Antrim, and well-mounted slides offered in exchange.— William A. Firth, Whiterock, Belfast. Will exchange Book on Diatoms by Prof. A. Mead Edwards, cost 3s. 6d., for some back numbers of Science-Gossip or unmounted micro objects. — E. V., 41, Peckham Grove, S.E. The beautiful Green Lizard, L. Viridis (living), in any number. Open to offers.— J. Sinel, Bagot, Jersey. In exchange for any other Mounted Objects, Proboscis of Blow Fly, Pleurosigma angulation, Amphiplcura pellucida. —Address, T. C. Maggs, Yeovil. Wanted, Gosse's Works on " Marine Natural History, in exchange for Botanical Works.— C. A. Gwines, 8, Crafford- street, Dover. Wanted, Cuticles, Insects, &c, prepared for mounting, for other material. 200 oz. covers, glass, cheap. — Tylar, 165, Well- street, Birmingham. Send well-mounted 3 by 1 Slide for a sample of Diatomaceous Tripoli. — T. Brown, 7, Spencer-street, E.C. British Coleoptera. Exchange correspondents wanted. — James Walkden, 183, Broad-street, Pendleton, Manchester. Melicerta ringens, exchange for living Sea Anemones (actinia) or madrepores, or good mounted micro object.— H. E. Forrest, Lloyd's Bank, Aston-road, Birmingham. Living or mounted specimens of I 'olvcx globatorm exchange for good mounted or unmounted objects. — John Levick, Lime- tree Villas, Albert-road, Aston, Birmingham. BOOKS, &c, RECEIVED. By Alan Bagot. Losdon : C. K. "Accidents in Mines. Paul & Co. " Industrial Art." February. " Land and Water." February. "Journal of Applied Sciences." February. " Chambers's Journal." February. " Science pour Tous." January. " Botanische Zeitung." January. &c. &c. &c. Communications have been received up to the 12TH ult., from:-W. H. G.-T. S.-T. B. W.-F. W. E , S.- H V — P T —J. D.— J. M. M.— E. W. A.— C. P. O.— Dr. B. — W'D— S. A. B.— A. S.-A. M. Mc.A.— Dr. E. H. V.— R. Mc.A.-J. W. B.-Dr. C. R. B.-E. C. R.-J. R. J.- M K -T G.-C. B. M.-C. D. W.-T. Mc.G.-G. R. V. jun -J. B -C. D.-R. G. C.-R. B.-G. S.-L. T.-T. W. D. J _!!r m c -T. H.-C. S.-H. L.-W. T. V. D.-W. M. P. -H P M -J. R T.-W. L. B.-H. E. W.-W. W.-G. G. -W. M -V.C.-W. A. C.-C. H. H.-J. W.-W. G. S -C. A. O.-W. H. P.-E. C. J.-T. W.-J.A.M.-M F. - T B — C F W. T. W.— W. W.— A. F. G— R. H. K.— H G.-Dr.' P.-G. O. H.-A. W. S.-E. T. M.-W H. S - Major L.-H. G.-C. A. G.-E C D -R. E.-A. S.-Dr. de C — A K.— A. W. P.-W. E. G— E. W. W.— J. C— V. G. _F C M-G S._c. W. C.-D. S.-F. C. -H. W. T— K r D-E V-W T-C. A. G.-J. W.-W. A. F.— H F F-A B C.-H. A. M.-W. S. jun.-W. C.-J. Y.- A IRS.-W B G.-H. K.-W. J. F.-C. P.-H. F. B.- J H H -G. N.-K. D.-J. D. P.-W. W.-J. W. B.- J H. J.-A. J. R.-T. Q. C.-J. M. M.-J. K.-&C. &c HARD Wl CKE 'S S CTENCE - G OS SIP. 73 > JVCsy ^^pTJ^J ^JVOvV ^yViM ^^vCs. vj?^; REPORT OF SCIENCE-GOSSIP BOTANICAL EXCHANGE CLUB, N approaching this sub- ject it is pleasant to say we have in a measure succeeded beyond our expectations, but we should have been still more successful and have been able to send more of the marked desiderata, had we been supported in our efforts by more of our working or rather collecting botanists. Evidently it was regarded solely as an Amateur Club, so that one of the rules seemed to be totally over- looked in so far that a lot of specimens were sent such as Bellis, Leontodon ; in fact, some few parcels contained only such as could be gathered in a field a few yards from our door. Another year, we are satisfied, all this will be changed for the better. A few contributors have kindly sent short notes upon any specimens thought 'to be unusually rare : these we give below. We also name a few good things which we have had great pleasure in distri- buting : — Ranunculus floribundus, Bab., common in the Tweed district. Some of our plants ap- proach elongaius, others triphyllus, and confusus. — A. B. Ranunculus salsuginosus. This form is frequent in the river Tweed. — -A. B. Ranunculus fluitans, Newb., river Lathkill, Derbyshire. — C. B. Draba niuralis, plentiful in cultivated ground (nurseries), to which it has been introduced about Kelso and Melrose, Roxburgh. — A. B. Raphanus maritimus, Lizard Point, Cornwall. We supplied about one half of the parcels with this rare species. Dentaria bulbifera, High Wycombe. — T. E. D. Viola Curtisii, Lytham. — J. C. M. V. amcena, Bishop Auckland. — J. P. S. V. lactea, Helston, Cornwall. — J. C. V. Curtisii, Land's End. — J. C. Silene quinquevulnera. Introduced to the Tweed district. — A. B. Cirava alpina, /3. intermedia, Gaitheugh, Berwickshire, where it is abundant : along with it I observed a few patches of C. luletiana, No. 1 60. possibly true " or typical." Alpina grows there also, but I did not detect it. — A. B. Rubus ccesius, var. pscudo-idtcus, Springwood Park, Roxburgh. Various forms of Rubus ccesius are plentiful in the district, but I have seen this only from the above locality. — A. B. Rosa pomifera. On the roadside at the highest part, above Sweethope, Roxburgh : one of the bushes is a fine old plant about 7 feet high, and as much through . They are as far as possible, under the circumstances, from any house or garden, being about halfway between two farm- places. I have never seen it in a garden in the district. — A. B. Rosa Watsoni, also common in the Tweed district, and, like Rosa subcris- tata, very variable. — A. B. Rosa subcristata. This variety is common in the Borders. — A. B. The fruit of Watsoni can scarcely be confounded with any other species, when once recognized. Alchemilla conjuncta, Buttermere Fells, Cumberland. — R. W. Upon writing to Mr. W. respecting this locality, which is open to doubt, he informed us the specimen sent was cultivated in his garden, but was originally brought from Buttermere by a friend of his in the North of England. Not the least doubt, however, exists as to its being the true conjuncta, and if the locality is also a genuine one, it is one of the most important discoveries our contributors have brought to light this season. We may also add, the leaves are at least one-third larger than the plants we have inspected at Kew and Benthall Hall. Mcdicago lappacea. I have found a few specimens of this species on Tweed - side every year, for the past five seasons. It grow^ in company with the other Medics (M. denliculala, M. maculata, and M. minima), along with which it has been introduced to the district with-wool. — A. B. Trifolium Molinierii, Lizard Point. — J. C. T. stric- tu?n, Lizard Point. — J. C. The above clovers are old friends. It is pleasing to know they still retain possession of the old station, from which they were recorded many years ago. Sarothamnus prostratits, Lizard Point. — J. C. Helianthemum caniun, Great Orme's Head. — C. B. Ribes alpinum, Rokeby, Teesdale. — J. P. S. Spergularia marginata, Arnside. E 74 HA R D WI CKE 'S S CIE NCE-GO SSI P. — C. B. Callitriche autumnalis, abundant in Yet- holm Lock, Roxburgh. Although it has not been recorded, so far as I am aware, from the Till or the Tweed, judging from the large quantity that is annually, after every high wind, carried into the Bow- mont, and thence to the Till and the lower reaches of the Tweed, it will very probably be found there also. — A. B. We believe this was recorded by Dr. Johnstone several years since. Lamium intermedium, a rare weed in cultivated ground about Kelso. — A. B. Scrophularia Scorodonia, Penzance. — J. C. Pulmonaria officinalis, some very large patches in Makerstown Woods, Roxburgh. Pro- bably a remnant of monkish cultivation.— A. B. Veronica peregrina, a garden weed, at New Louden, Berwickshire. — A. B. This plant is rapidly spread- ing : it seems but a few years since it was named by Prof. Babington, from specimens then discovered near Perth. Rumex rupestris, Helston. — J. C. Polygonum littorale, Link, P. Rail, both gathered at St. Bees Head. — C. B. P. arenastrum, Bor., St. Bees Head. — C. B. Orobanche azrulea, St. Owen's Bay, Jersey. — G. C. D. O. rubra, Gunwalloe. — J. C. Allium triquetrum, Helston. — J. C. Goodyera repens, Bowmont Forest, Roxburgh. — A. B. Plentiful in many Scotch Fir woods in both Roxburgh and Berwickshire. Most likely it will also be found in similar situations in Northumber- land ; indeed, I have found it within three miles of the borders of that county. Owing to the increase of plantations, this plant has increased rapidly of late in this district. The Goodyera appears to have been one of the original natives of the Borders when this part of the country was covered with forest. When the land was cleared, it, and others of a like nature, would disappear and remain in a dormant state, until circumstances rendered the soil again suitable for their existence. Cephalanthera gra?idiflora, High Wycombe. — Mrs. T. E. D. Erica tetralici-ciliaris Penryn, Cornwall. —J. C. Cuscuta epithynuun, Kingswood-heath, Surrey. — J. L. Crocus nudiflorus, Derby. — W. H. P. Impatiens parviflora, Ockbrook, Derby. — W. H. P. Potamogeton nitens, Web. Abundant in the Tweed and Teviot, in the counties of Roxburgh, Berwick, and Northumberland (Che- viotland). Like others of the genus, it is variable. The description of P. nitens in " Student's Flora " says the leaves are recurved, — surely a misprint for incurved. — A. B. Potamogeto?i zoster a: folms, Spon- don, Derbyshire. — W. H. P. P. lanceolatus, River Lligway, Anglesea. — C. B. This is another record for a very old station, originally made public in Davie's "Welsh Botanology. " Plantago Timbalii, Mullion, Cornwall. — J. C. We believe this has not hitherto been noticed in the above county. Veronica triphylla, York. — H. R. M. Mellittis mellissophyllum, Beeralston, Devon. — W. H. Carex humilis, Leigh Woods. — W. G. C. filiformis, abun- dant in Lurgie Loch, Berwick ; Prins-de-bog, Rox- burgh ; and Campfield Bog, Northumberland. — - A. B. Wherever this species is met with, it is generally abundant ; such is our limited experience. C. digitata, near Tintern Abbey, Monmouthshire. — C. B. — C. ornithopoda, Cresbrook Dale, Derbyshire. — C. B. Three of our contributors send a limited supply of the above novelty. It will doubtless be new to most of the members. Carex punctata, Gau- din. Ledges of perpendicular rocks in the Water- winch, Tenby. — C. B. We hope again shortly to refer to this species ; the fruits have been submitted to Dr. Syme. Cyperus longus, Rennoch Valley. — J. C. y uncus pygmceus, Lizard Down. — J. C. We are glad to be able to supply the whole of the mem- bers with this species, which is, comparatively speaking, a recent addition to the British Flora. Scirpus parvulus, mouth of Ovoca, Arklow. — C. B. Kobresia caricina, Widdy Bank, Teesdale. — J. P. S. Leersia oryzoides, Woking, Surrey. — H. E. W. It is but seldom good specimens of the Leersia can be secured ; nearly all we have seen have been im- perfect : the few we have on this occasion distributed are excellent examples. Bromus Lloydianus, near Lizard Point. — J. C. Ophioglossum ambiguum, St. Martin's, Scilly Isles. — J. C. A total of forty-four parcels of plants were sent out. In each case we made as good selection as was within our power. DOES DESICCATION KILL DIATOMS? A COMMUNICATION on the above subject, by M. P. Petit, was made to the Societe de Botanique, Paris, and as the subject is of considerable interest to the diatomist, we have much pleasure in reproducing it. " As the heat of summer dries up the ditches, pools, and puddles, one sees that when the last trace of humidity vanishes, the diatoms with which they were stocked also disappear. But when the rains of autumn and winter refill the places we have indicated, the diatoms revive and soon reappear in great numbers. For some years I have gathered with care the dried surfaces of the ditches in which I knew that great quantities of diatoms existed, in the hope of finding traces of spores or zygospores. I, however, never found anything but empty frustules mixed with the soil that had served as a substratum. Never being able to find traces of spores, the idea occurred to me to make experiments on the diatoms when placed under the same conditions as occur in nature. I therefore collected, at divers periods of the year, the diatoms, with their substratum of mud or clay, and submitted them to desiccation in the sun, placing the material in glass vessels covered, to keep them from dust, some for six, and others for eight months. The desiccation was such that the deposits at the HARD WICKE'S S CIENCE- G SSIP. 75 bottom of the vessels were cracked in eveiy direction. In the month of September last (1877) I examined some fragments of these deposits. I saw that the frustules were there, and also that they were trans- parent and apparently empty. But on making a more careful examination, I saw in the interior of one of the extremities, in a majority of frustules, some brown granules, which I considered were the remains of the dried endochrome. The vessels were then filled with distilled water sufficiently aerated by prolonged agitation ; after this they were exposed to the direct heat and light of the sun. During the first two or three days there appeared but little change in the frustules, but on the fourth day the large brown granules had augmented in size, and had taken the yellow tint characteristic of the diatomaceous endochrome. In following from day to day the augmentation of the plasma, I remarked that on or about the fifth day this nearly filled the middle of the frustule, and on the eighth day it had assumed the normal form peculiar to the genus to which the species belonged. The naviculas had re- sumed their curious movements, and some days later it became evident that a number of the frustules had commenced to multiply by self-division. In the presence of these observations, we are able to conclude that the diatoms, like many other of the lower organisms, preserve the vegetative force in spite of desiccation. At the same time I observed a circumstance which deserves mention. In one of the vessels a large number of diatoms were attached to the sides of the glass : in these the endochrome never returned to its normal condition. It is probable that the plasma had been killed by too rapid a desiccation, while the diatoms on the surface ■ dried less rapidly as the substratum slowly lost its humidity : the plasma was, therefore, able to contract slowly ; thus preserving the power of returning to life under the influence of favourable conditions. It seems, there- fore, necessary, in order that the diatoms should preserve their vegetative force, that the desiccation should proceed slowly ; and that is exactly what takes place in ditches and pools. After these facts, it is easy to comprehend why, during the wet season, we are able to find, almost directly, the diatoms for which we have searched in vain during the drought." {A T ote by Translator. — These experiments will, I think, not only account for the rapid reappearance of the diatomacese in dried-up pools when these were again refilled, but will also explain their presence in such habitats as the moss on the trunks of trees, roofs of cottages, or the damp places near leaky water-butts or tanks. The debris from the dried-up ditches is raised by the wind as fine dust, and carried, perhaps, miles away, and after a time deposited in the localities just alluded to ; the presence of moisture not only soon restoring their vegetative power, but enabling them to reproduce by self-division. Those who have examined gatherings from the previously-named sources have, no doubt, been struck with the absence of the larger forms : these have, probably, been eliminated by their rapid sub- sidence, owing to their much greater weight.) Norwich. F. Kitton. PRIMITIVE MAN : HIS TIMES AND HIS COMPANIONS. By the Rev. J. Magens Mello, M.A., F.G.S. IN the history of almost all nations there is a point at which that history loses itself in tradition and myth, a point at which we should be left in im- penetrable darkness were it not for the new light that has been shed, at any rate, upon the past history of man in Europe by the discoveries of the still young science of Geology. When we attempt to trace back the history of the human race in England, which we may take by way of example, the earliest historical records carry us back to the period of the Roman Conquest ; the writings of the Roman Tacitus, and of some other authors of that epoch, show us more or less distinctly what kind of a countiy this was, and of what sort the inhabitants were which they found in possession ; and there history leaves us. We must look elsewhere for any further information. That information lay buried for long centuries beneath the earth : in mounds, in caves, in gravel-pits the foot- prints of primitive man were left for the explorers of the 19th century to track and to interpret. During the last fifty years evidence has been fast accumulating, showing us that long ages must have elapsed, ages marked by many changes, since man made his first appearance here ; evidence slowly received indeed at first, but which has yet surely made its way, forcing upon us the belief that long before the Romans visited our shores, generations after generations of men had come and gone, men to whose eyes was presented a very different England to that with which we are acquainted, men who had as their companions animals very different to those with which we are now familiar. What that England was probably like, what those animals were, and what little we know about those men is the subject of this present sketch. Many ages before the Romans came there was a time when England, instead of being an island, together with Scotland and Ireland, formed part of the continent of Europe ; there was then no Bristol Channel, no Irish Sea, no Straits of Dover, no German Ocean such as we now have them ; we must picture to ourselves a northern and western extension of the Continent with a great river, an enlargement probably of the present Rhine, flowing northwards through a wide valley or plain, where is now the sea. Into this river flowed, as tributaries, the Thames and E 2 7 6 HARD WICKE 'S S CIE NCE - G O SSIP. Humber and other streams; dense forests, wild moor- lands and heaths, great swamps and morasses, diversified doubtless in places by green pastures, stretched far away inland from this great valley, as well as from others on the south and west of Eng- land. In those early ages, no mild winters were known, though probably the summers were far hotter than any which we now experience. We may even imagine, if we will, snow-covered mountains, with their glaciers creeping down into the valleys, in which the snow would lie thick as winter drew on, whilst the rivers would be sealed up by ice. We may picture to ourselves the animal life of that period. It is winter ; from the northern hills and forests come travelling southward, driven by the excess of cold, animals now called Arctic ; and in the valleys and amid Fig. si. Flint Implement from Brandon ; 3 nat. size. the woods of middle and southern England might have been seen the herds of rein-deer, the gigantic shaggy-maned mammoths with their huge recurved tusks, smooth-skinned but woolly rhinoceroses, great bears, wolves, and foxes, crafty gluttons, troops of wild boars and other animals. Spring and summer draw on, and as these animals begin to move once again to m ire northern pasture-grounds, we find with the increasing warmth an influx of other visitors, strange, indeed, to England now, — lions and tigers, and leopards, hyaenas, hippopotami, elephants, and other species of rhinoceroses; and thus, in the strange climate ef those days, might have been witnessed a continual swinging to and fro, and an intermingling for a time, of Arctic and southern animals, who made this c iuntry their home, and many of which were even bo 1 here, and here lived and died. Do any ask, ! lo you know all this? is not all this a mere idle die mi? Let us, then, record some of the evidence. 'J 1 :se animals have left us their remains to this day ; -1 iiny a brick-field and gravel-pit, in the soil of 1 iinis caverns, their bones, nay, occasionally even tl ir complete skeletons, have been found, and no 1 tee accumulation this, no stray bones are these, v 1 ;hed in by some great flood or floods from distant : jions. The evidence shows that many of these 1 les were deposited in the very spots near to which t se animals died. Sealed up in the floor of many a cave are these relics of the past, not water-worn and rubbed, but fresh and sharp as to all their angles, some- times also bone lying close beside its bone, as though quietly dropped and covered up where found, as must, indeed, have been the case, almost immediately after death. Our cave floors give us proof also that many of these animals, the rein-deer, hyaenas, mam- moths, and others, must have been born in this country. In the same bed, lying side by side, we have found the young and the old, the rein-deer and its fawn, the hyaena and its cub, the young as well as the old elephant or rhinoceros, and a very brief examination of the contents of some of our caverns will demonstrate these facts ; we may not only see the jaws, for instance, of the old hyaena with the teeth worn by hard work almost to the gums, but also those of the young animal, in which the permanent Fig. 52. Flint Implement from Langey, Fr. ; f nat. size. teeth are only just sprouting and pushing their way beneath the deciduous ones. Most of the teeth of the mammoths found in caves are those of young animals, and when we come to look closely at all the bones and teeth, we are at once struck with the fresh-look- ing conditions of the majority, and are convinced that they can have had no long journey to perform between the death and burial of their owners. Another thing which we may observe in the case of bones found in caves is that many of them are seen to be scored and gnawed into their present shape by the teeth of some animal, and analogy has led to the conclusion that the great devourer of the bulk of the animals whose remains are found in caves was the hyaena. This savage beast in those early days, as now, was in the habit of dragging its victims wholesale or piecemeal into its den, where it devoured not the flesh only, but also the bones, rejecting only the very hardest portions ; and the teeth, then, left lying about on the floor, would soon be covered up by the mud brought in, partly by the frequenters of the caves, partly by floods, and also by the slow deposits from the moisture which found its way through cracks and fissures. It seems a strange thing that such animals as those spoken of should ever have been found side by side in our country, — the northern rein- deer and the southern hyaena, for instance. Some geologists have not been able to realize that they could thus have lived during the same season, and HARD WICKE'S SCIENCE- G OSS I P. 77 have suggested that during those early times there may have been warm and cold periods, each lasting perhaps ten or twelve thousand years, and that ' ' the southern animals lived in our island during the warm periods of the glacial epoch, while the northern ani- mals lived during the cold periods." That there were such interglacial periods of warmth appears to be not improbable, but, allowing this, I do not see how we can, with the testimony of cave deposits before us, fail to be convinced that northern and southern forms did not make their appearance separately, each living here for awhile and then disappearing, but that they lived during long periods actually side by side. The condition of the various bones found is such that they undoubtedly convey the impression of perfect con- temporaneity ; any way, they are found lying side by side, without a vestige of rolling or wear and tear, I \ L .11,1 \ V •*. ^ ■) u m> Fig. 53, Quartzite Implement, Creswell ; J nat. size. in deposits from a few inches to only a foot or two in thickness ; a rein-deer bone, for instance, almost, if not quite, in contact with the jaw of a hyaena, and bearing upon it what we can hardly help believing to be the marks of the hysena's teeth upon its surface. The remains of Arctic and southern forms are so intimately blended together, and present such simi- larity of aspect in such caves, for instance, as those of Creswell, and the gnawed bones of rein-deer, rhinoceroses, and other animals are so exactly like the bones gnawed by hyaenas of to-day, that the evidence appears overwhelming that they all must have lived side by side ; and the easiest way of accounting for such a condition of things is to sup- pose, as has been suggested, a seasonal immigration and intermingling of the animals in a climate subject to an extreme range of summer and winter tempera- ture, unless we accept as an alternative that the intermingling may have taken place at the com- mencement or close of an interglacial period, but that there was such an intermingling of forms appears to be beyond question. Now, when these animals lived in England, man was their companion ; there is now not the slightest doubt of that. The evidence, fifty years ago so scanty, so incredulously received, has become over- whelming. To take the evidence of caves alone : in numerous caves in this country, in those of France, Belgium, and Switzerland, traces of man's presence have been found in vast quantity intimately mixed up in the same beds in which the bones of the animals are found, and showing most clearly that they must have been deposited at the same time. And is it asked, what are those traces? Have you any human bones ? The answer is, not many. A few have been found in some caverns, and these have been found to be in exactly the same condition as those of the extinct animals ; but I do not think that we have any right to expect to find many bones, and one reason is that although man was then present, his numbers were few indeed, compared with the vast multitude of wild animals. Why, even as recently as the time of Queen Elizabeth I believe that the population of all England did not exceed that of London to-day. Man would then be in the propor- tion of one to many thousands of wild animals, with whom he would have to wasre a hard and often Fig. 54. Flint Implement, Le Moustier, Fr. ; f nat. size. precarious struggle for existence. And again, if the men of those primitive times neglected their dead, as do some tribes of men now, the hycenas, wolves, and other animals would not leave many bones to tell the story of man's existence. What we do find to prove that man then lived are his weapons and his tools, — rude, indeed, at first, and ill formed, but yet showing a certain amount of design and intention in their shape never to be found in mere naturally-broken stones. Man's first tools and weapons were the pebbles picked up around him, rudely fashioned for such simple work as he required them to perform by a few pieces chipped off here and there, to enable them to be more readily held in the hand, or fastened into holders of bone or wood ; such rude tools would serve as hammers to break bones for the sake of their marrow, to scrape the skins of animals killed in the chase with the primitive stone-headed lance or arrow. Implements of this primitive character have been found in abundance in the lower beds of some of the caves of this and other countries, as well as in the ancient river-beds. In England, the caves of Creswell and that of Kent's Hole have furnished many highly characteristic specimens of these earliest efforts of human skill, whilst the gravels of the Thames Valley, of the Ouse and other rivers in this country, and those of Amiens and Abbeville, amongst others in France, have also furnished numerous examples, some made of quartzite and other pebbles, others of flint. In the case of the rude hammer-stones, little has been 78 HARD WICKE >S S CIE NCE - G OS SI P. done to the original pebble beyond giving it a suf- ficiently convenient form to enable the user to grasp it, but the bruised and battered face of the implement clearly shows to what use it was put. In the scrapers we see that a sharp edge has been placed by skilful blows on one side of the stone, whilst the other has been probably fastened into some kind of holder. Primi- tive man would very soon have discovered that few of the stones commonly met with more readily adapted themselves to his wants than the flints so common wherever there was chalk, or, indeed, often found scattered here and there in gravel-beds and other spots at some distance from their original source. The sharp edge of a broken flint, the comparative ease with which it could be variously shaped, soon led man to prefer it to other materials. The razor-like edge of a flint-flake would be found to make an excellent knife, and such long thin flakes are amongst the implements most commonly met with. They are usually flat on one side, with a well- defined bulb of percussion at one end, — a proof of their having been struck by a deliberate blow from the original block ; a mere splinter broken accident- ally by the crushing of a mass of flint never has this well-marked protuberance. The upper surface of these flakes has also two or more faces, giving to the specimen in section a more or less triangular aspect. Broader flakes, with a sharpened edge at one end, would adapt themselves as scrapers. We also often find flints with very carefully-worked points, which may well have been used for boring holes in fragments of bone, to form needles, and they might be used, too, for piercing the skins, that the bone needle might more readily pass through. Some of the most primitive implements were large, somewhat oval- shaped, ones, made of flint or some other hard stone ; these, which are frequently found in the old river gravels, and some of which are made of quartzite pebbles, have been discovered in the earliest beds of the Creswell caves in England would, if bound firmly into a handle, serve as formidable axes or tomahawks, and were probably used as such. ( To be continued. ) THE REAPPEARANCE OF AN OLD FRIEND.* BRITISH natural history has produced few works which have become national classics. But White's " Natural History of Selborne" undoubtedly takes rank as such, and finds its place on our library shelves side by side with Goldsmith and Addison. The unaffected and graceful simplicity of the style, the cheerful and yet reverential tone of thought, the quiet love for all that lives, the keen power of observation, and the readiness to draw correct in- * " The Natural History and Antiquities of Selborne." By the late Rev. Gilbert White. Edited by Thomas Bell, F.R.S., F.L.S., and Professor of Zoology, King's College, London. 2 vols. London : John Van Voorst. ferences from complex facts, have rendered this work the most popular of its kind that was ever written. There is a freshness and a charm about every page, which seems imbued with the breath of the green fields, and the spirit of the silent woods. One returns to its occasional perusal with delight. It appeals as successfully to youth as to age, and commands its large circle of readers by reason of its broad sympathies. Naturalists and non-naturalists alike confess to its charm. Perhaps no other English work on natural history could have borne half the editing which White's "Selborne" has had to experience. We have editions of all kinds, voluminous and com- pendious, editions de luxe, and "cheap editions for the people" ; and still the work has lived throughout. In our opinion the present edition of White's cele- brated book is the best which could possibly be produced. There are many reasons why this should be the case. First of all the editor, Professor Bell, is himself one of our best naturalists and natural- history writers. No man more fully recognizes the scope of his work — no living naturalist has more pleasant memories of by-gone workers. Moreover, Professor Bell has lived in White's house at Selborne for the past thirty years, and so must have become imbued in no small degree with the spirit and charm of the place. This edition of White's work has, therefore, been edited in the house where it was ori- ginally written. The style in which this edition has been published demands a few words of remark. The binding of both volumes is after the modest style which White would have undoubtedly preferred. The engravings and woodcuts (not numerous) are of the best kind of artistic work ; the paper is excellent ; the type large and cheerful ; and there is an absence of those abounding foot-notes in small print on every page, which, in some editions of White's "Selborne," have made its perusal almost a torture. After saying thus much for the manner in which this edition has been brought out, we have next to draw attention to several matters in which it differs from all previous editions. A few years ago a series of twenty letters, constituting a correspondence be- tween Gilbert White to Robert Marsham, of Stratton, Norfolk, were discovered, and published, we believe, in the "Transactions of the Norfolk and Norwich Naturalists' Society," accompanied by a notice of Mr. Marsham's life, by Mr. Thomas Southwell, hon. sec. These letters are included in the second volume of the present edition. In addition to them are other letters and correspondence of Gilbert White's, which now appear in print for the first time. Such is the correspondence between himself and his brother John, who was English chaplain at Gibraltar, and after- wards vicar of Blackburn, in Lancashire. In these letters we gain a loveable knowledge of Gilbert White otherwise than as a naturalist. His brother seems to have been as simple-minded and guileless as himself, and this correspondence has a quaint, affec- HA R D WICKE'S S CIENCE- G OSS IP. 79 tionate, brotherly, but unfortunately old-world charm about it that almost makes one sad. The Rev. John White was a correspondent of Linnaeus, six of whose letters also appear in these pages. Another corre- spondence consists of a series of letters, also now first published, between White and his brother-in-law, Mr. Thomas Barker, of Lyndon Hall, Rutland, and the latter gentleman's son. Natural history and archae- ology are the chief subjects herein pleasantly dis- cussed. The correspondence between the well-known naturalist Pennant and Gilbert White form the bulk of the first portion of the work. In addition to the above new additions to White's " Selborne," ren- dering it richer and fuller than any previous edition, Professor Bell has had the sympathetic aid of several modern naturalists, among whom the suggestions of Professor Alfred Newton on that part of the work relating to Birds, have unquestionably raised its authoritative value. All lovers of natural history and English classics who can afford it, will have this best edition of White on their library shelves ; and all our provincial scientific societies and clubs ought to include it in their circulating list. THE HARVESTMAN "SPIDER." THE animal which from the enormous length of its legs has attracted the notice of most per- sons from childhood upwards, seems from its very slight resemblance in external appearance to the form of a spider to have received a name to which it is not at all entitled ; some of the peculiarities of spiders are so exceptional to the general characteristics of all other living beings, that no creature in which they are absent ought to be called a spider. I am there- fore induced to compare the harvestman with an ordinary spider, in the hope that some one will suggest its appropriate name. The first difference that strikes the most superficial observer is, that the bodies of spiders are divided into two distinct portions by a very slender waist which connects the abdomen with the chest and head ; in the harvestman the head, chest, and abdomen are all under one shell or horny covering, without any waist or division. The most remarkable feature in spiders is the position and character of the reproductive organs. In the female spiders they are on that por- tion of the abdomen next the waist, and in the male spiders in a much more extraordinary position, being connected with the head of the animal by the palpi ; a further exception to the prevailing order of nature, and equally remarkable, is seen in the fact that each male spider has two distinct and complete organs, one in each palpus, and both exactly alike, one not being the complement, but the exact counterpart of the other. In the different species of spiders these organs vary in a greater or less degree, so that by these differences species might be determined ; some of them are extremely complex and beautiful, as in Lyniphia marginata, others, though more simple, are still worth studying. May not the absence of this re- markable apparatus in the harvestman be considered a conclusive answer in the negative to the question, Is it a spider ? Those who have not the opportunity of examining these organs microscopically I would refer to Black- wall's celebrated treatise on spiders, where they will be found beautifully illustrated. This authority says, spiders moult or change their skin from five to nine times, according to species ; that the male sexual organs are not commenced in their development till the penultimate moult, and are not completed till the final moulting : now in the harvestman the sexual organs are found in the smallest individuals. In the harvestman there is one slight approach to the resem- blance of spiders, the position of the reproductive organs being similar to that in the female spider, viz., nearly close to the chest ; in the harvestman the position is the same in both sexes, there is, however, no difficulty in distinguishing one sex from the other ; in both sexes the organ is situated within a flexible tube by means of which it is drawn within the abdo- men, or projected externally, both organs are repre- sented in the following sketches (figs. 55 and 58). In the male organ the parallel lines represent the membraneous tube, the shaded portion the horny instrument which slides within it by introversion, or something like the tube of a telescope ; it may be seen in its normal position (after the body has been rendered transparent) seated within the abdomen with the hooked point near the external orifice, this hook is attached to the shaft by a movable joint, and the hairlike termination of the hook is also jointed, so that it is possible to place the hook in a line with the shaft, though it is always found at a right angle as represented ; the length of the organ with its elastic tube extended is about as long as the diameter of the body, the horny portion being a little shorter than the membranous. The female organ, from the great length of its elastic tube, which is about twice as long as the body of the animal, is probably used as an ovipositor, the horny portion is not more than one third the length of the elastic tube ; the latter, how- ever, when drawn within the body is shortened by contraction to the length of the horny part then con- tained within it. This part appears to be formed of a series of bands or rings connected together and terminating in lobes, to which are attached strong tufts of hair, or spines, the bands are covered with stout hairs about as long as the width of each band, and the membranous tube is so thickly studded with minute hairs, that when contracted within the body the organ appears black, the surface resembling that of a steel rasp. It might be supposed that a tube that has to slide within itself by introversion would be greatly impeded by the friction arising from its surfaces being prickly instead of smooth. If we ask So HARD WICKE *S SCIENCE -G OSSIP. what purpose do these hairs serve, or why is it that all other internal organs being so perfectly adapted by their smooth and lubricated surfaces for moving together without friction, these should present a roughened surface, we might learn a lesson of humility by reflecting that as we proceed step by step in our investigations of the mysteries of nature, we are continually finding how inadequate is the capacity of the human mind to comprehend the designs of an omniscient Creator. I now proceed to the considera- tion of the breathing organs. Spiders breathe by branchia, organs somewhat resembling the gills of fishes, being a series of thin membranous plates placed together like the leaves of a book in two clusters within the abdomen, one on either side the spiders says, " the foot (or portion corresponding to the tarsus of insects), is divided into two parts, the tarsus and metatarsus, and in some species into three joints." The tarsus of the harvestman has in some cases as many as ninety joints, the lowest number I have met with being twenty-five. The feet of spiders are terminated by two or more claws, generally pec- tinated ; those of the harvestman have only one claw, curved, but quite smooth. The palpi of the harvest- man closely resemble those of the female spider, excepting that the claw at their termination is generally, if not always, pectinated in the spider and smooth in the harvestman, though I have found two instances in which the claws of the palpi were pecti- nated, although those of the feet of the same Fig. 56. Fal.\ of Ditto. Fig. 57. Bipennis of Ditto, Fig. 55. Oviposito of Harvestman " Spider." (The lines show actual size of full-grown organs.) A A A A A A A AA AAAAA Fig. 59. Part of a (Fig. 55) highly magnified. individuals were not so. The absence of spinnerets distinguishes the harvestman from the generality of spiders, but as some few species of spiders are also without them, this is not a difference of so positive a character as the other points I have noticed. The last organs to which I would draw attention are the fakes : in spiders these are terminated by a curved claw sometimes deeply serrated on its inner side ; in the harvestman the termination is a pair of forceps or nippers like those of a lobster or crab. These fakes in most of the harvestmen are rather smaller than we find them in spiders, but in some cases they are fully three times larger than we find them in any of the spiders, and assuming quite a different form ; in fact, they no longer resemble reaphooks, from which they derive their name of fakes, but are much more like pickaxes : therefore, following the same kind of nomenclature, I propose bipenni as an appropriate name for them ; the fig. 57 shows an outline of their peculiar form and the comparative size that the bipenni and the fakes bear to each other. All the specimens I have found possessing bipenni were males ; I think, however, these organs do not distinguish the sexes, but a difference of species, as both males and females are found bearing the fakes ; as the upper spur or arm of the bipenni is not present in those in- dividuals that are less than half grown, I think it is not fully developed till the last moult, as in some that are about three-quarters grown it is very short Fig. 58. Intromittent Organ of Ditto. sexual orifice in the female. The air is admitted to these branchia through stigmata, or horny plates having fine irregular openings, presenting the appear- ance of a grating, corresponding in some measure to the spiracles of insects. The harvestmen breathe by trachea, the same as insects ; there are two spiracles, one on either side of the abdomen ; the principal tracheal tube proceeds a short distance from each spiracle, and then divides and subdivides, permeating every part of the body. The eyes present a difference in number only to those of spiders ; Blackwall says, " the number of the ocelli in spiders is always two, six, or eight ; " in the harvestman the number is four. The same authority in describing the legs of HA RD WICKE 'S S CIENCE ■ G O SSI P. Si and round at the top, instead of terminating in a sharp point, as when the animal is full grown. Having now shown (as I think conclusively) that the harvestman is not a spider, will some one tell me what it is ? Xorwich. J. H . Gary. THE MIGHTY DEEP. IN a general way persons have a better appre- ciation of the vastness of the land than of that of the sea ; mainly because the former is more fre- quently forced on their attention. The area of the ocean is nearly thrice that of the land ; the one being estimated at about 52 million square miles, and the other at 145 million square miles. On the land, as well as in the ocean, there are vast tracts on which life is absent or scanty ; but whereas, on the land the inhabitable portion is to a great extent superficial, in the ocean life occurs more or less I abundantly at all depths. The ocean forms one continuous mass of water broken up into irregularly- shaped portions by the land. When portions of the sea are inclosed by the land, the water under- goes so marked a change in character that such inclosed portions (forming lakes and lagoons) can no longer be considered as forming part of the ocean. The sjreat bulk of the sea is concentrated in the South hemisphere, and the pole of the sea (that is, the centre of the hemisphere in which it is most extensive) is in 52 S. 6° E. In this hemisphere the land is to sea as 1 to 8, while in the opposite hemisphere there is nearly as much land as sea. The mean depth of the sea has been variously estimated, but as yet there are scarcely sufficient data for accurate estimates. Buffon suggested it might be 200 fathoms or 1,200 feet ; Lacaille, 163 to 273 fathoms; Laplace, 656 fathoms ; Lyell, 2,600 fathoms ; and Herschel, 3,520 fathoms. The most probable mean is about 2,600 fathoms. Assuming this as correct, the average volume per square mile would be 418, 176 million cubic feet, and the total volume 60,635,520,000,000 million cubic feet. The mean height of the land is 1, 000 feet above the sea-level, which would give a volume of 1,449,676,800,000 million cubic feet for the supramarine portion. Hence the ocean's bulk is 41 times greater than that of the land above its upper surface. One of the causes now in operation which tend to make the ocean encroach upon the land is the intro- duction of detrital matter into the sea. Every grain displaces its own bulk of water, and so far causes it to encroach upon the land. Denudation is always going on at a probable mean rate of one foot in 3,600 years, at which rate all the land would be removed in about ten million years. The sea, in that case, would gain on the land at the mean rate of about five square miles per year. If all the land were transferred to the sea, the mean depth of the latter would be reduced to 1,500 or 1,600 fathoms. Other causes, however, may influence the extent of the ocean. One is the subsidence of land below the sea-level and elevation or subsidence of the sea bottom. The subsidence of the whole of the land would involve a depression of about 30,000 feet ; and the elevation of the whole of the sea bottom would require an uplift of about 35,000 feet. In all probability elevation and subsidence proceed simul- taneously in different parts of the earth, and may or may not counterbalance each other. The bearing of this conjecture is that extensive subsidence or eleva- tion of the sea bottom is calculated to be more in- fluential than the introduction of sediment in causing the sea to advance upon or withdraw back from the land. The introduction of a mass of matter equal in bulk to all the supramarine land would be sufficient to cause the ocean to overflow the land up to about the level of 6,000 feet above the present level ; while alterations of level less than those of which the geologist is cognizant, as local phenomena at least, would, if extended over large, areas account for the displacement of entire continents and oceanic basins. It has been assumed that the bulk of the ocean has been approximately unaltered; but surmises might be made upon the variations in the amount of water which, in its aeriform and liquid states, is temporarily withdrawn from the sea. A rough calculation indi- cates that the average amount of vapour constantly in the air corresponds to about 13,412,704 million cubic feet of water, and that the amount of fluid re- quired to keep all lakes, rivers, &c, supplied for six months is about 2,364,072,004 million cubic feet, or about sufficient to form 5,894 square miles of sea of average depth. The entire absence of all flowing fresh waters, or a doubling of their present volume (extreme conditions which are not likely to have hap- pened), would have no appreciable influence geolo- gically in altering the relative areas of land and sea. The accumulation of snow and ice would perhaps be more influential. For, supposing it possible that at one time there were no ice, and that at another some 10 million square miles were covered therewith to a depth of 500 feet, this would give a volume of 139,392,002,000 million cubic feet, which cor- responds to 309,071 square miles of sea of average depth. If we assume that the sea has retained its mean depth unaltered, the utmost probable irregu- larity in the amount of "rainfall and in the accumula- tion of ice upon the land would not cause its area to vary by so much as one million square miles. Hence, from a geological point of view, the possible influence of such irregularities may be disregarded. There is yet another influence to be noticed. It is exceed- ingly probable — nay, we may say certain — that the sea bed consists of material which is in places permeable, and in others impermeable, to sea water. At what rate the water percolates into the rocks, and what 82 HARD WICKE 'S SCIENCE . G OSSIP. quantities are retained in them temporarily, we are not prepared to state ; but it does not seem likely that the rates of absorption and evaporation have varied much. A certain portion of the water, how- ever, remains in the rocks for prolonged geological periods, and it is believed the amount is constantly increasing. It is not known what the amount may be, but there seems to be no reason to suppose that it has affected the volume of the ocean to any large extent. The conclusion at which we arrive is that at every geological period there has probably been water somewhere on the earth's surface, having a mean depth of over 9,000 feet. It has been suggested that comets' tails may have condensed on the earth, and, as a conse- quence, given rise to floods ; but such speculations may be dismissed as purely imaginative. The attractive in- fluence of the land draws the ocean above the level it would otherwise have, and thus causes the water to encroach upon the land ; but such elevation of the water is a local phenomenon only, the mean level of the ocean being in no way affected. The existence and, to a large extent, the conditions of the present sea are indicated by direct evidence ; . but the position, depth, and conditions of the seas of former periods can only be ascertained by indirect means ; and mainly from the fossil remains found in strata. The occurrence of a species belonging to a group of organisms which, so far as known, is exclu- sively marine, is a fair proof of the co-existence of marine conditions, provided, of course, such remains have not been introduced by accident or by derivation from older marine beds. In most cases collateral evidence sufficiently indicates whether the stratum is or is not marine. The distribution of marine or- ganisms is dependent upon circumstances, so that a study of these in the case of living species enables us to infer, more or less correctly, some of the condi- tions of the sea in which they lived ; and amongst others that of the contour or depth. The matter is, however, somewhat complicated, for it would seem that depth alone has little influence on the distribu- tion of animals and plants, and that the influencing conditions are temperature, light, food, currents, &c. The evidence then which fossils afford as to depth is probably wholly circumstantial. In the present seas the greater depths are associated with a low tem- perature, slow currents or movements of water, sedi- ments of extreme fineness, and absence of solar lumi- nous rays ; the probabilities are that such has always been the case in the older oceans ; but the only con- stant condition associated with great depth is absence of the sun's light. In closed seas the temperature may be high at great depths, and under certain con- ditions moderate currents may exist in the deepest oceans. In a general way shallow waters are asso- ciated with the stronger currents, the coarser deposits, varied conditions of temperature and accessibility to solar light. Deposits of extreme fineness may occur in shallow and cold seas, which conditions would be nearly the same as those of the deepest seas ; for, irrespective of depth, the principal difference is pre- sence of light in the shallow water. This would allow of the existence of species to which ordinary light is directly or indirectly essential, along with such of the deep-sea forms as could live in association with them. In the shallowest waters along the sea margin we find a certain relation between the depth and particular groups of species of organisms ; but ex- amination shows that this relation holds because certain conditions of temperature, exposure to air, food, &c, concur with such depths. These condi- tions may correspond with a certain depth in one area and with a different depth in another area ; so that it becomes necessary to take many circumstances into account before drawing conclusions as to depth from the association of certain species. When the conditions regulating the co-existence of particular species are known, we can readily infer somewhat as to the depth of the water. These considerations have an important bearing upon the geographical distri- bution of species and the inferences deducible from such distribution in space and in time, and, conse- quently, upon the continuity of oceans in space and in time, or, rather, on the continuity of certain oceanic conditions. A. Ramsay. ( To be continued. ) BOTANICAL WORK FOR APRIL. THE early part of the present month will be the season to work at several species : thus, the common Pilewort [Ranunculus Ficaria, L.) is now in full bloom in some parts of Britain. We have been recently taught to regard it as comprehending two distinct species ; for example, it is divided into two varieties, viz., a. diverge/is, F. Sch. ; b. inatmbens, F. Sch. The first variety, a, has lobes of lowest leaves not oz'crlapping at the base, lowest sheaths narrow : variety b, incumbens, has lobes of lowest leaves overlapping at the base, or parallel with petiole and lowest sheaths, very broad, amplexicaul. Which of these varieties occurs in your district ? It will make many a walk pleasant and delightful to know one is helping to clear up a question not yet satisfactorily answered. In the south of Europe another form is found ; in fact, a distinct species, named by most botanists Ranunculus Ficariaformis. Have we not overlooked it in England? It is very similar to our plant, and may quite possibly have been passed over. Let it lie cleared up this spring. Viola sylvatka, Fries. — This is another species which can be worked up in April. Most of our readers are aware that from the days of Linnceus until a very few years ago, this plant passed current under the old name of V. canina; nay, not a few still persist in knowing it under the old name, and refuse to listen to the '"new species." Linnceus's name HARDWICKE'S SCIENCE-GOSSIP. {canina) was applied by him to the present and another species, V. canina of Babington's "Manual." When it was found needful to separate the two, this name was restricted by Fries to the one now recog- nized as the true canina, and he proposed sylvatica as the present species. Most European botanists at once adopted his views, but it was some time before we recognized the new species. But we wish to call the attention of our readers to another fact, which may be advantageously worked at in every district, for V. sylvatica comprehends two well-marked varieties, viz., a. Riviniana, b. Rcichcnbachiana. We have many book species, with not near the distinctive characters possessed by the above. V. Riviniana, Rich., has the leaves broadly cordate, acute ; calycine appendages persistent, broad ; petals blue, remarkably broad, lower one with many branched veins at its base ; spur thick, cream-coloured, or very light blue. V. Reichenbachiana, Bor. , leaves cor- data, prolonged; calycine appendages small, narrow ; petals bright lilac, lower one with parallel, few, nearly simple veins at its base; spur flattened, light lilac. If the above varieties are once recognized, they will never again be mistaken. The common form, that often called V. canina, Linn., is seen as a roadside plant on every sunny bank or sandy lane in the northern counties, but V. Reichenbachiana is generally found, and then very sparingly, in deep, damp ravines and glens, where the sun seldom penetrates, although sometimes seen on the same bank with the common form. It may be identified at a glance, the peculiar lilac petals exceedingly narrow when compared with any other species ; also the narrow, often sharp-pointed spur, just tinted with pale lilac : the leaves are, when young, pale green, not thick, fleshy, and dark green, like Riviniana, and it is altogether the prettiest violet known in the British islands. Draba vema, L. — Continental authors make six species out of our earliest spring gem, the " Whitlow Grass " {Draba vema). We have often wondered how many of these could be found on our old walls or sandy pastures. After fifteen years' experience in the northern counties and Wales chiefly, we can only detect three varieties, for we do not think they can fairly take rank as species. From Boreau, "Flore ■die Centre de la France," we take the following; so that our friends, who may have the opportunity, may work them out : — I. Erophila (Draba) brachycarpa, Jord. Leaves oval, lanceolate, narrowed at both extremities, entire, clothed with simple and bifurcate hairs ; flower- stalks slender ; sepals oval, hispid ; petals oboval, oblong ; pedicels flexuose, 2-4 times longer than the silicules ; silicule very obtuse at summit ; seeds elliptical, few in number. Loc. old walls and rocks; " the first to flower." 2. E. glabrescens, Jord. Leavesdark-green, lanceolate, narrow, gradually taper- ing into a long petiole, often smooth ; sepals oval, a little hairy ; petals oboval, oblong, with slightly spreading lobes ; pedicels hardly three times as long as the silicules ; silicules nearly evenly oblon