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 400 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 0 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 650 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 eggs> 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^0^^? 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 0 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 °ften 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 furiSus) 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 46 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 0 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 0 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 in- 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, 5y 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, J3 in. Fig. 38. Biloculina ringens; nat. size, J3 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 subject, 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 650, 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 64 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 regret, 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. 69 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. 38> 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» 4I5, 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. 7th 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., 75, 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 0 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." {ATote 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 76 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 520 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) in straightforward flight it has neither the dash nor the rapidity so no- ticeable in the Sparrowhawk. It flies along gently, while the Sparrowhawk sweeps rapidly on, now swooping at this, then at that, {c) When seen off the wing, the " Windhover" is also easily known by its inclined and rather stooping posture, while the Sparrowhawk stands "as straight as an arrow," bid- ding defiance to everything by all its movements and actions. Even the uncouth country-lad can perceive the difference between these two, for, on asking a little rough-headed boy on the outskirts of Sheffield if there were " any hawks about there," he replied, " Which hawk do you mean ; the one which catches pigeons, or the one which stands still in the air?" — by the former, meaning the Sparrowhawk, and the latter, the Kestrel. The Kestrel takes great delight in tormenting other birds, — above all, the Owl (Strigid(c), which appears to be the "laughing- stock " (if I may so use the expression) for all birds. The cry of the Kestrel is a strong, wild, ringing note, which becomes harsh and loud on the threatened approach of any danger to either its young or its eggs. Flight. — The flight of this bird is very light and airy. Generally, it flies at a moderate distance from the earth, but during, or rather on, the choice of a building site it soars high up in the air, when its actions are most elegant. The question then arises, " What is the Kestrel's object in soaring so high?5' Fig. 70. The Kestrel {Falco tinnuncuhis). "Is it seeking to discover food from so great an alti- tude?" No. It is the joyousness of the bird which prompts its lofty flight and graceful evolutions so high up in the heavens. When on the ' ' look-out ' ' for sustenance it flies at a moderate elevation, that it may drop down suddenly and unexpectedly on its prey and secure it before it has sufficient time to escape. If the "Windhover" attempted to descend (even were it possible for it to discern ils prey from the great height to which the Kestrel often ascends) its intended victim, startled by the rushing noise which the bird's velocity causes in descending, would have time to escape the talons of its would- 102 HARDWICKE'S SCIENCE-GOSSIP. be captor. .Kestrels are very early risers, and are busily employed procuring food almost as soon as night rolls back her gloomy mantle and the wide east is tinged with the rosy hues of the rising sun, and pursue their vocations until it becomes dusk ; and even then, long after the brilliant orb of daylight has disappeai-ed in the far-away ruddy west, and the soft twilight of a summer's even- ing has overspread the country, they may be seen lightly skimming over the surface of the earth in search of food. As the compact body, great extent of wing, and fan-like tail of the Kestrel indicate, it has great command of itself in the air, making long sweeps and elegant curves in the ethereal regions. It is, indeed, a beautiful performance, and one we all delight in witnessing on a fine, clear summer's day, the Kestrel, quite at its ease, with nothing in the blue sky above but itself; its movements so unconstrained, and withal so replete with joyous- ness, as it revels in the celestial atmosphere in perfect harmony with the surrounding landscape. The wings and tail are expanded, and seem scarcely to move as their owner ascends and descends in grace- ful curvets. Now it takes a longer and a higher sweep than usual, and then, coming low, keeps on circling, now here, now there. Suddenly it stops ! Probably it caught a momentary glance of some small animal ! No ! It again resumes its flight, again it is wheeling majestically aloft ! It hovers again ! What a beautiful object ! How pleasing are its actions, as it "stands anchored," as if sus- pended by some invisible cord from on high ! Its head is turned a little on one side, its tail spread out like a lady's fan ; it is watching with its keen eye some small animal it intends to catch, probably a field-mouse little aware of the fatal danger which menaces it. In what fine style it comes down on that unfortunate mouse, which it soon bears away in its talons, to its craggy fastness in yon distant wood, there to be torn to shreds by four or five hungry young " Standgales." When the Kestrel is hovering, its wings, although to the naked eye they do not appear to move, are in a perpetual quiver. Suppose the Kestrel be unsuccessful in one attempt, it repeats its efforts, and so on, until it reaches "home." But there is not a field, valley, pasture, or any place at all likely to furnish it with food, which it passes without a strict search. The beauty, smoothness, and facility with which all these evolutions are executed are beyond the power of the pen to adequately describe. No ! You must go and search for it amidst its haunts, and watch it in its re- treats, before you can fully appreciate the character of this bird. Sometimes we can just discern it like a mere speck on the horizon winging his way slowly under the clear, blue canopy of heaven. At other times it moves along at an immense height until it disappears beyond the verge of the distant horizon. In fact, on the wing, this bird appears indefatigable. What would be the value of scenery were it not enhanced by the presence of birds ? How dreary and desolate, how desert-like would be the vast expanse of heather-covered moors without the hoarse cackle of the Red Grouse (Tetrao Scotictis vel Britannicus) or the Curlew's {Numenius arquata) solitary cry ! What would be the aspect of our woods were we not in Spring-time, and, indeed, throughout the Summer months, to see the Kestrel hovering over its leafy bowers ; or what of such diversified scenery as is to be J met with in and about the " Peak district," were we not to meet with the "Standgale" amidst its fastnesses ; or of the lakes, were not the still solitudes to be awakened by the plash of the water as the Coot {Fulica atra) or Moorhen, startled by the intruder's presence, dashes away to gain shelter among the j many islets which dot its surface ; or the shrill piping 1 whistle of the Sandpiper (Totaiius hypoleiichos) as it ■ hastily wings its way across the watery expanse, to some other part ? Were the world to be deprived of birds, it would lose one of its most powerful charms. Migration. — We have now arrived at the most interesting, but, at the same time, vexing portion of '■ the history of this bird, viz., its migration. Does • the Kestrel migrate wholly or partially from Britain ? or does it merely move to other localities in our j island more congenial to its habits? I have been much interested in this question, and have studied it I deeply, — at least, as regards the immediate vicinity of Sheffield. It has proved a most interesting study. We all know what a distinctive feature are the elegant aerial evolutions of this bird in our summer scenery, and how blank seems the wood which is not in- habited, or, at the least, its neighbourhood frequented, by a pair, or more, of these beautiful little falcons. i After the breeding season, when the young have been reared and are able to fly, we see them very often hovering over the waving golden corn-fields, or other- wise engaged in search for food. Then, after a brief interval, they suddenly disappear without any warn- \ ing, and we do not again see them until their appear- ance in early spring. The period of departure, of migration, varies, according as the weather regulates. If winter sets in early, they "go away" about the latter end of September, but if the season be fine and open, they may prolong their stay until the earlier portion of October, and by the end of that month not one is to be seen. Whither are they gone ? Happily the days have gone by when people were deluded by the supposed fact of birds hiding in holes, and there remaining in a dormant condition until spring's verdant call awoke them. There is but one con- clusion. It was Charles Waterton's opinion that the majority of these birds migrate to other more southern countries, leaving here, according to his observations, about October. He had excellent opportunities for the observance of their habits, and yet lie never saw them in winter after their final departure. Certain it is that we see but very, very HARD WICKE'S S CIENCE - G O SSIP. 103 few of these birds from October to the middle of February. In my opinion, they do migrate wholly to other countries. Coming from the North and joining those in the south of Britain, they assemble, cross the Dover Straits, and, although numbers may stay in the provinces of central France and northern Spain, I have reason to believe that the immense majority cross the Mediterranean along with the numberless birds that periodically do so, to the northern shores of Africa, whence they commence their return during the month of January, arriving in Britain in the course of the succeeding month. The few (and they are but few) exceptions met with during the winter months only tend to prove this, and we must treat their appearances as those of the casual swallows which often appear at unseasonable periods. Food. — As I have before said, this bird is not so destructive to poultry or game as is the sparrow- hawk. It is also a much more sociable bird, and is more frequently seen near the habitations of man than the former. Its food consists of the smaller mam- malia, such as rats and mice, also beetles and other destructive insects. Charles Waterton says that it consists "almost entirely of mice." For the vermin this bird destroys, its life should not be sacrificed as it is by gamekeepers, who, almost without excep- tion, seem to have the most ungovernable aversion to all kinds of hawks. A great observer of the economy of birds, Mr. Booth, says, "The rats alone which these birds destroy while procuring food for their young would commit more, ten times more, damage in one year than a pair of Kestrels could in their joint lives." The Windhover does, indeed, occasionally have a change in its diet in the shape of a small or unfledged bird, and, as sure as it does so, it is either caught or seen "red-handed" by the keeper, who, having seen its partiality to birds, firmly believes that all its food consists of such, and, acting on this illusory belief, he exterminates this really useful little hawk and points out with evident satisfaction the ominous row of Kestrels suspended in a conspicuous position in his "museum." * Mice are swallowed whole, the indigestible parts being afterwards cast up in the form of pellets. Insects are dexterously caught while on the wing, being clutched with either foot and adroitly conveyed to the mouth without at all impeding the flight. Representation in other Countries. — Though not found in Australia, the Kestrel's place is well supplied by the Nankeen Kestrel ( Tinnwicu- lits ccnchroides, Gould). As before mentioned, the Kestrel's flight is very buoyant, but what must that of * I notice in the Zoologist for April a remarkable instance of this. On p. 120 of that periodical Mr. W. A. Durnford, writing from the Lake district, says : " A kestrel rose from the embankment within a few yards of me, with a large object in its claws. ... It dropped its prey, which on examination proved to be a full-fledged young cuckoo, dead, though still warm." its Antipodean representative be, of which Gould says, "The flight of the Nankeen Kestrel differs from that of its European ally in being more buoyant and easy " ? In North America this bird is partially represented by the American Sparrowhawk, which partakes of the character of both the Kestrel and the Sparrowhawk. Distribution. — It is the commonest of the Falconida? which frequent our isles. Charles Water- ton had numerous Kestrels in his park ; he, himself, visited in 1835 no less than twenty-four nests, all having Kestrels' eggs in them. I have never since heard or read of so many being found in so small a space, but, of course, he had them strictly preserved. Around Sheffield its nest is not found as frequently as that of the Sparrowhawk, although I have seen the bird oftener. In many parts of Lincolnshire it is also very common. It is very frequent in Scotland, breeding mostly on the precipitous and craggy rocks which fringe its shores. In Ireland, Mr. Thompson says, "It is common and indigenous to suitable localities throughout the island." It is found in most European countries, even as far north as Lapland, where "Old Bushman," in his trip up there in 1862, procured specimens of both skins and eggs of this bird. Specimens of it have also been sent from all portions of Asia and Africa. Nidification. —One cannot fail to be struck by the facility with which the " Standgale " adapts itself to places of nidification. In sylvan localities it constructs its nest mostly on a tree, but if the spot chosen be a wild, mountainous, but picturesque district, either on the coast or in the interior, it will be placed in some crevice in the rock. Sometimes the nest is placed in the interstices of a dilapidated old barn, or, perhaps, it is situated in a church tower. The rough and hastily-composed structure which serves for a nest is quite adapted to the contiguous wildness. The "Stannelhawk " is but too glad to avail itself of the deserted nest of any of the Cor- vid we have often noticed this fact with surprise, especially on a fine bright night, when the chorus of song seemed to be carried on through the night, with very little cessation, increasing in liveliness as the early morning dawned, causing one to remark that the birds sang all night as well as all day long. Some four years since, about the months of May or June, many people visited our neighbourhood (New- castle, Staffordshire), to listen to the sweet music of the various birds singing far on in the night ; among which was one of the warblers, whose note was so sweet that it was mistaken for a nightingale. The latter bird has rarely been known to come so far north. — E. Edwards. Cucumber and Black Beetles. — In reply to Mr. Smyth's question, as to whether the peel of the cucumber destroys as well as alluies the beetle, I venture to remark that it does both. Some members of my own household have tried the experiment ; the smell of the cucumber peel allures the beetles, and after eating it they die almost directly, some close to the peel, others as they are moving away from it, to retire in their holes.— E. Edwards. What is the Whipultre (Science-Gossip, No. 160, p. 95). — I do not think Chaucer's "Whip- ultre " has ever been satisfactorily identified, and I can only make a very diffident suggestion as to the species meant. In some dialects the cross-bar from which horses pull a plough is called a " whippletree," and these are generally, if not always, made of ash. It is possible, therefore, that the whipultre is the ash ; and it might be so called because whipple-trees were made from the wood, or the instruments might be named from the tree of which they were made. This view receives confirmation — very slight, it is true — from the fact that whilst most of the more common trees are mentioned by Chaucer in the passage indi- cated, the ash is omitted from the list. The Cornel- tree (Cornus sangninea) has been suggested, but I do not know on what grounds. — Robert Holland, Norton Hall, Runcorn. Fluid for Strengthening Bones, . 10-lineaia, might have their existence shortened without cause. — JV. Andrezvs. The Song Thrush and Missel Thrush.— Mr. Ingleby asks if it is not an unusual occurrence to find the Missel Thrush {Tardus viscivorus) nesting on the top of a wall. It is certainly an unusual oc- currence ; but it should be borne in mind that birds frequently build in strange places, and mostly from necessity. The Missel Thrush loves to build in gar- dens, shrubberies, and orchards, though at other times it is a wild and shy bird. Possibly the owners of the nests referred to by Mr. Ingleby could not find suitable nesting-places in trees or bushes, or their previous nests may have been plundered by prowling -cats, who destroy many nests of young song thrushes, blackbirds, and missal thrushes in gardens. The birds, no doubt, finding they could not keep their young from cats or vermin in their ordinary nesting- places, finally built their nests on the top of a high wall, where, it is to be hoped, the parent birds succeeded in safely rearing their broods. In my district, where there is little shelter fpr the early breeding birds, blackbirds and song thrushes some- times build their nests in stone walls, and in the roofs ofopenhaysheds. "G. S.B." has fallen into a singular mistake. He intimates — though his statement is not over clear — that he has discovered a Song Thrush and Blackbird mating together, and rearing, we must sup- pose, a hybrid brood. Had he described how the nest was constructed, the question might easily have been settled. The eggs with "claret markings " were undoubtedly those of the Missel Thrush, and the female which he saw hatching, and which he states was a Song Thrush, was, no doubt, a female Missel Thrush. If "G. S. B." cannot distinguish between the eggs of the Song and Missel Thrush, he would easily jump to the conclusion that the female Missel was, as he states, the Song Thrush. The nest, which he has not described, would be lined with dry grass or hay, if the eggs found therein had "claret markings." The eggs of the Song Thrush are blue with black blotches, densest at the thickest end ; though I have several Song-Thrush eggs in my collection which have not a single speck of black upon the blue. The nest of the Song Thrush has always an inner lining of hardened clay or cattle-droppings, while the nest of the Missel is invariably lined with dry grass. This latter bird is a very early breeder. His favourite nesting site is in the fork of a tree, not often very high up. I have seen the nest of a Missel Thrush on the bare branch of a tree projecting over a public foot- path, and the nest was so conspicuous that it was plainly vi-ible at least twenty yards off. The Missel is our largest song-bird, and though in colour and markings it is not unlike the Song Thrush, yet it is much larger. The cock bird commences to sing very early in the year. In stormy weather it sings best, and on this account the Missel Thrush is called the "storm cock" in many parts of the country. The nest and eggs described by " G. S. B." are those of the Missel Thrush. This correspondent also seems to believe that the Blackbird and Song Thrush breed together. Such an unusual occurrence, so far as I know, has never been recorded by any naturalist ; and " G. S. B. " cannot be wrong if he describes the eggs in his cabinet as those of the TitrJits viscivorus — viz. the Missel Thrush. If he is still in doubt as to the identity of his eggs, if he will send me one in a small box, I will name it correctly and return it. At the same time I have no hesitation in asserting, from his description of the nest and eggs, that they are those of the Missel Thrush. — H. Kerr, Bacup, Lanca- shire. Aquarium for Microscopic Work. — As two or three of my friends, with myself, are anxious to construct a small domestic aquarium (say about thirty inches in length), for the purpose of keeping in stock objects for the microscope, will you or any of your contributors to Science Gossip kindly supply us with information how to make one — size, shape, and material, &c. ? I feel certain our thanks, with those also of many of your readers, would repay you or them for your kindness. — W. D. B. " Gooseberry. — Dutch, Kruis berry, Cross-berry, from its triple spines forming a cross." NOTICES TO CORRESPONDENTS. To Correspondents and Exchangers. — As we now publish Science Gossip a week earlier than heretofore, we cannot possibly insert in the following number any communi- cations which reach us later than the 9th of the previous month. M. R. D. — Your species are as follows : — No. 1. Filago minima. No. 2. Filago germanica. No. 3. Filago spatludata ; the last species is much more unfrequent than the first two. No. 4. We should not like to name anything from single leaves. No. 5. Mgopodium Podagraria; L. No. 6. Angelica syl- vestris; in future dry them a little before packing them for post, they are then much more easy to determine, because they travel in a better state. J. C. (Hels ton). —Thanks for inquiry. Your parcel, No. 2, has been sent. A. W. Rosling.— The only Flora of the Isle of Wight we can advise you to purchase is Bromfield's " Flora Vectensis." This is both a valuable and reliable work. F. H. A. (Fishbourne). — We have several letters expressing the interest felt in " Botanical Work for April." You are quite correct. No. 1. Viola Reichenbac liana; a very characteristic specimen. No. 2. Draba brachycarpa. Look out for Ranun- culus ficaria, and its varieties ; yours is a good locality for it. B M. W. (Hentland, Ross).— The specimens are, as you judge, Micro-fungi. No. 1. Trickobasis Geranii, or Geranium Rust. We are unable to detect any perfect fungi on No. 2. perhaps you would send another example when more mature. Science-Gossip Botanical Exchange Club.— Amateur Botanical Collectors wishing to join the Club this year, should as early as possible state their wishes. To save the promoters from any loss, a small charge of say five shillings will be made ; this may be remitted when the parcels are sent in October. Rules to guide our members will be sent in May to those only who announce their names. The Rules this season will con- tain the numbers of species particularly wanted : these numbers will correspond with the London Catalogue, 7th Edition, pub- lished by Hardwicke & Bogue, post free, sevenpence. M. R. D.— The Poison Ivy is the Rhus Toxicodendron. \ ou must not, however, confound it with our "rare old plant,-' the English Ivy, which is Hedera Helix. The Rhus is used as a remedy for paralvsis, but we do not know the results. S. A. B. (Allan, Dungannan).— The specimen enclosed was Disandra prostrata. 120 HARDWICKE'S SCIENCE- GOSSIP. D. S. — The leaf-like excrescences are not a fungus, but a gall. X. — We are not aware that any book has been published on sea-side pebbles except that of J. G. Francis, called " Beach Rambles," which is as full of geological errors as it could pos- sibly be. B. Hooker. — Your larva of the goat-moth should be kept in a tin or wire-gauze box, and a large piece of half rotten ash- wood placed with it. It will appear as a moth the third year from its commencing its life as a caterpillar. D. Cooper. — There is no doubt your specimen is Clausilia laminiata, in which the mouth is almost entirely deflected to the side opposite to that on which it is usually found. R. Ramsay. — You will be able in your subsequent geological reading to answer your own difficulty better than we can in the short space at our command. But we may say that the reason why it would be futile to bore for coal through the Oolite or Wealden would be on account of the known thickness of the overlying formations. 2nd. Your highest Scotch mountains have nothing to do with the thickness of our old red sandstone. The thickness of the latter is known from observing the angle of the dip of the strata, and the area covered by the outcrop. If you study Page's " Geology," you will soon get over your present difficulties. Persevere ! A. Sells. — Your Zoophytes are : No. 1, Flustra foliacea. No. 2, Sertularia operculata. No. 3, Dasya coccinea, a sea- weed. No. 4, Sertularia argentea. Nos. 5 & 7, Sertularia filicula. No. 6, Plnmnlaria falcata. No. 8, Antennularia antennina. A. Wheldon. — You will find full instructions for " sugaring" for moths, &c, in " Collecting and Preserving Natural History Specimens," published by Hardwicke & Bogue, 192, Picca- dilly, at 3s. 6d. A. G. N. — Your specimen is an English plant, usually found growing in such localities as that you name. It is the curious Butcher's Broom (Rnsciis acnleattis). J. W. N. and Others. — It is intended to revise the rules, &c, of the Botanical Exchange Club. Due and full notice of revi- sion, &c., will be given in our columns. Application for mem- bership can then be made. W. Hobbs. — Very likely your chrysalides will develop early during the coming summer. J. P. Thompson. — We understood that a new edition of Pritchard's " Infusoria" was postponed. Lownde's 'Anatomy of the Blow-fly " can be had of Messrs. Hardwicke & Bogue. R. B. N. — The fossils are corals, belonging to the Silurian formation. No. 1 is the "Chain-coral" (Halysites catenipora), and No. 2 is Favosites Gothlandica. The small shells which you think look like "cockles" are in reality not bivalves, but specimens of Melluscoidea. They are fossils belonging to a group (Brachiopoda') once as abundant as they are now rare. The name of those enclosed is Rhyconella IVilsoni. T. McGann. — Your entomostracans are the male and female of Canthocamptus minutns. Your slides are very well got up indeed. A. S. A. — Get " Collecting and Preserving," published by Hardwicke & Bogue, 192, Piccadilly, price 3s. 6d., and read the article on collecting butterflies and moths, by Dr. Knaggs, and beetles, by Mr. E. C. Rye. EXCHANGES. Duplicates. — A number of Lepidoptera in good condition, and well set. Desiderata : Birds' Eggs, side-blown, not in my collection. — R. Kay, 2, Spring-street, Bury. Wanted, Newman's or Stainton's " Lepidoptera." Offered 5 vols, bound, and 3 unbound, Science-Gossip, and other books. — W. E. Green, 24, Triangle, Bristol. J. W. Bulmer, near the church, Northallerton, Yorks., will exchange Jackdaw's, Lapwing's, Song Thrush's, Moorhen's, Stock-dove's, Starling's, &c, birds' eggs, for other varieties of eggs- Wanted, British or foreign Stone Implements and Weapons of any kind ; Stone Hammers, Chisels, Wedges, &c. ; also Tools and Weapons wholly or partly composed of stone, relating to any uncivilized race of men. — W. M. Cole, 93, St. Helen's- street, Ipswich. Bird's Eggs, 250 varieties, valuable duplicates, side-blown, in- cluding many unprocurable species. Desiderata : Species new to collection. Exchange lists supplied. All letters answered. Sissons, 11, Priory-road. Sharrow, Sheffield. Well-mounted Slides of injected human Kidney, Palate of Whelk, and transverse Section of Porcupine Quill, in exchange for others mounted in balsam. — J. A. Kay, Mansion House, Brompton, Chatham. Wanted, some good Polariscope Objects, for others or cash. — T. Brown, 7, Spencer-street, London, E.C. For Elytron of Diamond Beetle, or Skin of Tench or Sole, Polar-mounted, send well-mounted objects or material to Thomas Shipton, Chesterfield. Slide, as announced in last month's Science-Gi'skip, offered in exchange for first-class prepared material (unmounted1. Box must accompany material to be returned with slide. — James Simpson, 15, Prospect-place, Dumbiedykes-road, Edinburgh. London Catalogue, Seventh Edition, Nos. 19, 121, 122, 130, 133, 201, 265, 267, 349, 394, 396, 497, 533, 542, 534, 841 b, 860, 888, 912, 923, 1014, 1040, 1109, 1142, 1310, offered for any of Nos. 775 to 807 inclusive. — W. Jones, Manchester-street, Oldham. For BatracJwspcrmum moniliforme and Tahellaria ventri- cosa, both just as collected, send objects of interest. — W. West, Chemist, Bradford. Wanted, Westwood's " Introduction to the Classification of Insects," for foreign insects (chiefly parasites), mounted or un- mounted.— M., Anglesea Lodge, Godalming, Surrey. Wanted, a few Eggs of Lepidoptera, and Micro-Lepido- ptera, whole for mounting, in exchange for really good slides. — T. H. Buffham, Clarendon-road, Walthamstow. Wanted, a Coddington Half-inch Lens, Matthews or other Turntable, and a Section-cutting Machine. Can offer good Micro Slides, &c.— Wright, 8, Grosvenor-road, Headingley,. Leeds. Will exchange " Live Stock," Journal, cost 8s., and other books, for back numbers of Science-Gossip, or scientific works. E. Velge, 41, Peckham Grove, London. Wanted, every description of Mounted Objects and Micro- scopic Apparatus, in exchange for Mounting Materials. A list sent to all applicants. Foreign correspondence solicited. All letters answered.— E. Atkins, 200, Essex-road, Islington, London. Wanted, Volumes of Science-Gossip, Coleoptera, or Books on them, in exchange for very large Latin Book on Insects, date 1634. " Insectorum sive minimorum animalium Theatrum." Calf, full of woodcuts of all insects, exchange value 15s. — J. N. Minnitt, 5, Regent-street, Nottingham. Wanted, Wood Sections, Fish Scales. Hair Sections, and every variety of Unmounted Objects, for Mounted Objects (good).— C. W. Lawton, 200, Essex-road, Islington, London. Wanted, unmounted, Ripe Capsules of Mosses, Sori of Ferns, cleaned Polycystina and Foraminifera. Well mounted Slides in exchange. — Send postal slide-box for return to T. Sherlock, 32, Exchange-street, St. Helens. Foreign Shells. — Duplicates, mostly of Japanese, Chinese, Burmese, Java, and Philippines, Australian. — Desiderata : principally North and South American, West Indian, Medi- terranean, Spanish, French, Algerian, and Egyptian ; also duplicates of about fifty sorts of British Land and Freshwater Shells for the above desiderata. Exchanges invited. — W. Sutton, Upper Claremont, Newcastle-on-Tyne. London Catalogue, 7th edition, wanted, 1479, 1495 b, 1496 b, 1505, 1511, 1513, 1520 b, 1523 b, 1531 b, 1535 b, 1548, 1572 b, for 1447, 1449, 1448, 1136, 1145, &c. — B. M. Watkins, Treaddow, Hentland, Ross, Herefordshire. A firm, substantial, Equatorial Stand for Telescope for exchange. Wanted, a Foot-lathe, good Magic Lantern, or Scientific Apparatus. — Address, H. Morland, Cranford, Middlesex. Mosses. — Wanted, a Northern Correspondent to exchange Species from the West of England District. — Address, £. Wheeler, 31, Triangle, Tullen-road, Bristol. Rare British and Foreign Eggs to exchange for others not in collection. All letters answered. — J. T. T. Reed, Ryhope, Sunderland. Will exchange any class of neatly-mounted Micro Slides or Material, Diatoms in situ ; Parasites or their Eggs particu- larly wanted. Prefer to send stained vegetable preparations, unless otherwise requested. — W. Teasdale, Headingley, Leeds. BOOKS, &c, RECEIVED. " Popular Science Review." April. " Land and Water." April. " Midland Naturalist." April. " Scottish Naturalist." April. "American Naturalist." March. " Science pour Tous." March. " Bulletin de la Societe Beige de Microscopic" February. " Feuille des Jeunes Naturalistes." January, February, March, and April. &c. &c. &c. Communications have been received up to the ioth ult., from:— B. H.— D. C— C. W. L.— A. J.-H. B.— J. W. D. K— A. W.— H. A. M.— B. B. T.— J. F.— Col. B.— B. P.— P. T.— H. K.— T. Q. C— Dr. E. De C— W. B. G.— H. F. B.— W. R. M.— F. A. P.— A. P.— G. N. M. — R. N.— C. L. P.-J. N.-R. E. S.- W. T.-W. H. B.-W. J.— J. P. S. — R. R.— J. C— Col. M.— VV. V. A.— W. W.— H. L. G.— B. M. O.-R. H.-W. H. H.-J. C.-E. W.-J. T. T. R. —A. S. B.— T. W.— T. H. B.— J. D.— E. A.— W. E. G.— C. F. W.— W. M. P. -J. W. B.— J. A. K.— Dr. E. H. V.— A. G. N.-J. W. N— R. K.— W. H. W.— F. H. A.— W. W.— T. S.-T. B.-E. V.-J. C.-J. K.-H. W. S. W. B.-J. W. C. _j. s.— J. T. P.— J. P. T.— H. P. M. -T. S.— H. N. B.— J. W. S.-W. S.— J. McG.-W. E. J.-H. M.— B. M. W.— W. D. B.-J. P.-W. H. B.-G. L. H.-T. W. D.-A. B.— E. W. M.— A. S.— H. B.— A. S. A.-G. A.— &c. &c. &c. HARDWICKE'S SCIENCE-GOSSIP. 121 •^3gi» Mimmmmwmwimms THE HABITS, FOOD, AND USES OF THE EARTH-WORM. {Lumbricus terrestris. ) BY PROFESSOR PA LEY, M.A. F there is a creature of tolerably large size which one would be disposed at first sight to place lower than most others in the scale of creation, it is the common lob - worm. To an unobserving eye a very simple organism without any particular head or tail, and possessing only a slightly rough and bristly body of tubular form, composed of contractile rings — from which the class it belongs to is called arinelidae— it is regarded by most people as a rather ugl>'j but harmless, wriggling thing, slimy and disagree- able to touch, unsightly to look at, and about as destitute of interest as anything that lives and moves and has an independent existence. But all this is founded on a false estimate, and the false estimate is, as usual, founded on ignorance. The lob-worm may almost be called a clever and intelligent creature ; very shy indeed of letting its mode of action be seen, but showing by certain results, which readily come under our observation, that it has instincts which fall very little short of reasoning and design. And yet this creature has "no eyes, nor any other organs of special sense that are known."* There are difficulties in ascertaining the habits of the lob-worm, first, from its timidity and watchful- ness, next, from its rarely appearing on the surface except at night, thirdly, from its operations being conducted almost entirely under ground. It is im- mediately conscious of the tread of an approaching foot, or of the least tremor of the earth, such as is caused by digging or any garden-work. In these cases it acts in two apparently opposite ways. If a stick or a spade be thrust deep into rich garden-soil, in which large lob-worms generally abound, and moved to and fro, several of them will crawl out of their holes, even at the distance of a yard, and wriggle No. 162. Huxley. about on the surface. In this way the extraordinary elasticity of the creature may be seen. It can stretch, itself out to more than twice its natural length, and its power of locomotion consists in its turnings and twistings, its grasp of the earth by its short stiff bristles, and by forming its head into a kind of hook or anchor, and then dragging its body towards it. But if, walking gently, and towards evening, you chance to see a worm partly out of its hole, it will immediately retire into it. Blackbirds and thrushes may be watched pulling long writhing worms out of a grass-plot, and devouring them; but if you walk across the same grass you will not find a single one. The reason is, that the light hop of the bird does not warn the worm of its approach; the bird sees just the head protruding, and by a dexterous clip and jerk he extracts the delicate morsel, and bolts it whole — alive and kicking. The lob-worm has a singular habit of filling up the entrance of its hole with fallen leaves, bits of stick or straw, feathers, or any small and light objects — it is rather fond of bits of string — that it finds near. If it cannot get these, it piles up a little hillock of pebbles or small bits of lime, cinder, &c. Why it does this it is not easy to make out. Possibly it is to allow the passage of air into the hole, and yet to prevent the in- trusion of insects, such as beetles, or ants, which would give it as much trouble and annoyance* as a ferret gives to a rabbit in its burrow. For if it were solely for purposes of food, which fallen leaves or seeds of trees might be, and apparently are, the worm would not draw in such indigestible delicacies as string or feathers. Perhaps they pull in anything that they find soft and yielding, and make trial of its edible qualities at their leisure. Whatever be the reason, the holes are carefully stopped up in the way I have described. This seems, indeed, rather stupid; because a knowing bird may regard the tufts upon worm-holes as so many points for attack; but * In Mr. Taylor's " Half-hours in the Green Lanes," a slug {Tcstacelia haliotideci) is described as " the terror of the com- mon earth-worm" (p. 211). G 122 HARD 1VICKE' S SCIENCE- G OSS IP. this is the habit of the creature, and as I once, and once only, caught a lob-worm actually at work, I shall describe what I saw, which I thought extremely curious. My attention was directed to the fact that if the small heaps of pebbles were cleared away from a worm-hole, they were sure to be replaced next morning. Suspecting they worked only at night, I went late one summer evening, after a shower of rain, to a bed in the garden which was very full of earth-worms. Walking up to it on tip-toe, and with extreme care (for I was well aware that if it felt the footstep two or three yards off, it would retire into the hole), I was lucky enough to see one very big worm with its body about half out of the hole. I then stood for some time perfectly still, and watched it as it reached out its elastic head to a small pebble, and by a clever jerk, or possibly, by its slimy mois- ture adhering to it, it drew the pebble to its hole and left it close to the edge. Thus it took another and another, and now I was able to explain what I had often noticed, that every pebble within a circle of about six inches was moved away and piled up over the hole. The worm took the circle, elongating Hs body, and moving east or west and to every point of the compass, so to say, till not a pebble was left within its reach. This I sate, and the reader may believe that it is a strictly accurate account, though it may seem to credit the creature with more intelligence than it has any right to possess. I believe the same may be seen by anyone who will take a lantern into the garden late on a summer's night, for they can hardly be conscious of light ; even ■of this, indeed, I have sometimes entertained a doubt, though I cannot explain it in an eyeless creature. Certain it is that on gently uncovering a pot of earth containing a lob-worm, and bringing a candle to examine it, when it happens to be above ground, the creature will almost always immediately disappear. But the feat which I saw performed is nothing to what I am going to describe. I found on a gravel path in my garden, and on the grass-plot adjoining, a number of worm-holes, all stopped up with the long narrow leaves of the weeping willow, which had fallen in the late autumn, and had been placed erect in small bunches. On examining separately a num- ber of these leaves (of which each hole contained on the average about twenty, though many of them had more), I found, to my surprise, that every leaf had the stalk-end uppermost, and the other end rolled together into a kind of plug so as to fill up the hole. Aery rarely indeed, perhaps in one or two out of a hundred leaves, the creature had made a mistake, and put the stalk-end downwards. But in these few leaves the end was quite entire, whereas the leaf- plugs in general seemed to have been nibbled or partly eaten at the ends within the holes. Evidently the stalk-ends were too tough, and the worm had the extraordinary intelligence, blind as of course it is, to find out by the touch the right and the wrong end, and to make use of each leaf accordingly. The mouth-end (so to call it) of a lob-worm has many analogies to an elephant's trunk. It can curl it and twist it, make it blunt or sharp, curved or hooked, as it pleases ; and it is evident that an acute sense of feeling resides in it. Therefore, recklessly to chop worms in half with a spade, on the plea that they do not feel, or to impale them on fish-hooks, is cruel, even though we take old Walton's advice and perform the operation "tenderly." Worms feed by a kind of suction, as well as by digesting vegetable fibre; they pass earth through their long tubular stomachs, and eject it on the sur- face in those little hillocks which we call worm-casts, and which so much disfigure our closely-mown lawns, till we flatten them down with the garden roller. But these worm-casts perform more than one very important function. ( To be continued. ) BOTANICAL WORK FOR JUNE. IN taking our usual daily walk in the spring months, we have often seen the Chickweed, Marsh Mari- gold, and Water-blinks. We select these species because they are so common as to be generally passed over with the remark, "Oh, it is only the Chick- weed," and so on. Stay, however ; not quite so fast. The poor Chick- weed, despised because it is so common, covers, with- out doubt, three distinct species. As the result of a careful examination, extending over twelve years, we now regard this despised plant with deep interest, and, at a glance, can detect the three species we now lay before our readers : — First. — The Stcllaria media, Linn., may be recog- nized by the line of hairs on the stem and branches. 1. The true S. media, Linn., has five stamens; petals invariably present. 2. S. Borceana, Jord., is devoid of petals ; stamens three. 3. S. neglecta, Weihe. Sepals with long hairs, often as long as the petals ; stamens ten. Note. — We are unable to detect any good specific distinction betwixt S. umbrosa and 6". neglecta. Further. — No. 1 has showy flowers, with few branches, about four inches long. No. 2 is a small tufted plant ; branches very short ; flowers inconspi- cuous. No. 3 is not unlike dwarf specimens of Stel- laria nemorum, L. ; branches sometimes eighteen inches high ; leaves large ; flowers large. Our next species is the Marsh Marigold (Caltha pahtstris). For many years we overlooked this species, but now it seems like an old friend altered by long absence. It is split up into three varieties ; but we now only notice those which are common, or HA R D WICKE'S S CIENCE- G O SSIP. 123 Stems short and tubercles on seed a striking resem- S terns long, soli- of frequent occurrence, so as to throw a new charm to our spring rambles : — Caltha pahistris, L. 1. C. vulgaris, Schott. Flowers large, one and a half to two inches across ; sepals meeting at the margins ; follicles (seed-vessel) with a short beak ; branches stout, very few. 2. C. Gtterangerii, Boreau. Flowers numerous, very small ; sepals spreading ; follicles with a long beak. No. I is generally found in swampy situations ; No. 2 in brooks, &c. Another plant is often overlooked, the lowly Blinks. Montia fontanel, L. In this instance new names have been introduced to distinguish each separate plant. No. 1. — ill. minor, Gmelin. tufted ; flowers inconspicuous ; with a raised point. This bears blance to Stellaria Boraana, Jord. No. 2. — M. rivnlaris, Gmelin. tary, thick and flaccid ; tubercles on seed with flat- tened point. We regard No. 1 as a very distinct species ; it alters not in a state of cultivation, but is rather rare in the northern counties. "Who does not recognize with feelings of delight and joy the pretty Milkwort? {Poly gala vulgaris, Linn.) Probably no British species has been split up more frequently, if we except the Rubi. After years of toil in looking up these sub-species, and after examining, may be, thousands of specimens, we have come to the conclusion that the so-called P. z'ulgaris, as originally described by Linnaeus, includes two well-marked forms, as follows : — No. 1. P. vulgaris, L. Racemes, many-flowered; leaves scattered, lanceolate ; branches numerous, as- cending. No. 2. P. depressa, Wend. Racemes few flowered ; flowers small, white or pink ; leaves often tufted below, or crowded thickly on the stem just beneath the flowers, becoming opposite, all linear. This is a pretty species. There are other varieties, such as oxyptera, gran- diflora, Sec, but the characters are so liable to varia- tion, even on the same plant, that it is difficult to distinguish them without close inspection, but the above have generally constant characters. F. THE DATE-PALM. PHGENIX DACTYLIFERA is the name given by Linnaeus to this very important member of the vegetable kingdom. PJicenix is the Greek name of the date, and is probably derived from Phoenicia, whence the best dates were brought. Its origin, like that of so many of our cultivated fruits and vege- tables, is unknown, but it may reasonably be sup- posed to be a native of Arabia and Persia. In very ancient times it was cultivated in Egypt (in the Museums of Economic Botany, Royal Gardens, Kew, is a specimen of "mummy bread" which is appa- rently made of dates, such bread being frequently found in jars in the tombs at Thebes) and in North Africa, from which countries it was introduced very long after- wards, probably by the Arabs, into South Europe. It is a noble tree, attaining under favourable condi - tions a height of from 60 to 100 feet. The stout stem, which is very rugged, owing to the persistent bases of the decayed leaves, is surmounted by a large head of feathery leaves, 12 to 20 feet long. The flowers are produced on large branches, which spring from the axils of the leaves. Each inflorescence is at first enclosed in what is called a spathe, which afterwards falls away. As many as 10,000 flowers have been counted in one spathe, and, as one tree will produce many spathes at a time, some idea of the total number of flowers may be obtained. Each tree bears flowers of one sex only ; therefore cross fertilization is necessary. It is said that in times of war the Arabs cut down the male dates belonging to their enemies, the result being of course a total failure of the date crop. In " Hortus Collinsonia- nus," occurs the following memorandum: — "At Berlin was a large date-palm, at Leipsic was another, which was the male ; both made attempts to produce fruit, but imperfect, as these trees are of different sexes, the Berlin tree being the female; anno 1749, they married the two trees by carrying a branch of male flowers and impregnating the Berlin tree ; and then it produced good fruit, from which young trees have been raised, but this espousal must be done annually." To the inhabitants of many countries the import- ance of the date-palm cannot be over-rated. The pulp of the fruit serves them and their various do- mestic animals for food ; and even the extremely hard and apparently useless stones are ground and given to their camels. The young undeveloped leaves are eaten as a vegetable ; in a mature stage they are made into bags, and are the sole material used in con- structing the huts of the common people. The stalks of the leaves, when softened by boiling, serve as food for camels ; and numbers are imported into this country for the manufacture of walking-sticks. From the stalks also, excellent baskets and crates are made. Timber for the houses of the better class is obtained from the stems, which also furnish an inferior kind of sago. The fibre, called " lif," from the bases of the old leaves, is converted into ropes and a sort of coarse cloth. The heads of trees not bearing freely are cut off, and the trunks scooped out. Into the hollows thus formed, the sap rises at the rate of from three to four quarts a day ; this quantity is kept up for one or two weeks, after which it gradually diminishes : in six or eight weeks the trees become quite dry, and are used either as timber or firewood. G 2 124 HARD WICKE 'S SCIENCE - G OSS IP. The syrup-like juice obtained as above described is turned into an intoxicating beverage by fermentation ; end sugar is procured from this juice by mere boiling. Fig. 84. Lenves of Date-Palm, covered with fungus {Crapliiola pkucnicis). It is very probable that the palm-branches carried before Christ on His triumphal entry into Jerusalem were the leaves of this tree. Various branches of the Christian Church, by their use of date-palm leaves in decorating their churches on the anniversary of this event, and the Jews, by their use of them during the Passover, uphold this idea. For these purposes vast numbers of trees are cultivated, especially in the neighbourhood of Bordighiera, on the Sardinian coast. Collinson says, " Mr. Bowles writes me . . . the upper branches they tie up to turn yellow, and then sell them to adorn churches and houses to keep away the devil ; they have the art of managing them." Without the date the Sahara would be uninhabitable. In every spot where there is any water this tree flourishes, furnishing shelter to the traveller from the fierce tropical sun, and food for himself and camels. Very many varieties, differing much from each other in colour, size, and shape, are cultivated, each known by its own particular name. Some travellers mention as many as forty-six ; and twenty-six distinct varie- ties are exhibited in the Kew Museum. The date is fast disappearing from the Holy Land, where at one time it seems to have been very abundant. Moses refers to Jericho as the " City of Palms," and we have the testimony of Pliny in his Natural History that palms abounded in Judea and the surrounding regions. On several of the coins of Titus, Domitian, and Trajan the country is represented by the symbol of a palm-tree. Formerly dates were credited with many medicinal virtues. In some old herbals a decoction in red wine is recommended for the piles. The date's prevailing qualities are nutritious and saccharine. One pound of dates might produce about one ounce of the dry nitrogenous substance of muscle or flesh. In conclusion, we may observe that the date-palm may be seen growing in many collections in this country, notably a very fine specimen in the large conservatory at Sion House, the residence of the Duke of Northumberland. In the Palm House at Kew there is a much smaller one with an abundance of a parasitical fungus on its leaves. This fungus, which bears the name of Graphiola phanicis, and seems partial to P/ianix dactylifera, attacks several other species of the genus. Geo. Nicholson. A LESSON FROM A FAGGOT-STICK. THE object of this short paper is to show what pleasure may be derived by the observer of nature, from the contemplation of the most unlikely and commonplace objects, and how numerous are the sources from which instruction may be gathered to serve as a lesson in entomology. Those who are happily acquainted with this part of Kent, to whatever county they may belong, and to whatever part of the world they have travelled, or may hereafter travel, will gladly confess that it HARD WICKE'S S CIENCE - G O SSI P. 125 possesses points of beauty and interest which are not easily surpassed by those of any other county, and which entitle it to a place in the memory as a county of singular beauty, well deserving the appellation it has gained, "The Garden of England." Its graceful swelling hills are everywhere mantled with woods, sepia-tinted in winter, emerald -green in spring ; fuller, deeper, and richer-hued in summer, and splashed with purple, gold, and bronze in autumn. It would, indeed, be difficult to say at what season of the year they are most attractive. * m Fig. 86. Imago of Hylisimis fraxini, natural size. KN Fig. 87. ditto magnified. Fig. 83. Larva of ditto. Fig. 85. Tracks of Hylisin ws fraxini. Fig. 89. General form of main track or channel. Many of these woods are devoted to the growth of a kind of underwood for the sake of hop-poles, faggots, &c. They are allowed to grow for a period of about seven years, and are then cut down ; the trees are lopped to within a foot or two from the ground. This frequently-repeated act of cutting down causes the stumps to assume the most fantastic and picturesque appearances. They are often decorated with an elegant drapery of clematis, ivy, black briony, briony, and other climbing plants, and the graceful polypody hangs its waving tufts from their wrinkled sides. Among the trees so grown may be enumerated the horn-bram, hazel, chestnut, ash, white-bram, oak, cherry, maple, &c, so that the woods present considerable variety to the wanderer. Beneath their shade grows a great selection of wild plants, decorating the earth as with a coloured carpet. During April these woods are gay with anemone, primrose, cardamine, two or three species of viola, and the golden pilewort ; while a little searching discovers beautiful cushion-like masses of Adoxa vioschatcllina, the tropical-looking spurge- laurel, with its hanging clusters of yellow-green sweetly-scented bells. The curious, unhealthy-looking Lathrcza squamaria, growing from the roots of the hazel, and other trees, upon which it is parasitic, trailing branches of ground-ivy, and the sweetly pretty Oxalis acetosella. The faggots brought to our doors for lighting fires contain specimens of all the trees above mentioned, and many an interesting botanical lesson may be gathered from their examination. The nature of the bark, the formation and arrangement of the buds, the peculiar scars left by the falling leaves, and other points, may be well studied from these. When winter winds are howling round, and torrential rains are drenching the earth, we may well fly to the study of such objects as these for recreation and instruction. About the end of the month of June I had occasion to hunt through one of these faggots in search of a stick for the amusement of one of my children. I picked up a straight branch of ash, which appeared just to suit my purpose, and commenced to cut and trim it. To my surprise, although looking perfectly fresh and sound, I found the bark almost completely separated from the wood below, and the space between the two filled with a fine sawdust-like powder. Fixing my attention a little more closely upon the twig, I now noticed that the bark appeared as if riddled with small shot, as shown in the upper part of fig. 85. On stripping the bark, and blowing away the dust alluded to, I detected a groove, originating below a leaf-scar, which, after passing under the scar, branched off in opposite directions, as seen in fig. 85. Springing from these grooves were now clearly discernible a great number of shallow channels, sepa- rated from each other by the merest film of wood ; each channel widening out in proportion to its dis- tance from the main groove. At the end of each of these branching channels I found a small, fat, active little grub busily engaged extending its passage, the wood forming its food. I now, of course, saw at a glance the meaning of all this loose dust and apparent rottenness, and the origin of these main and lateral canals. It appeared quite clear that the main ducts were made by some insect, that eggs were deposited at minute intervals, on both sides of these tracts, that these eggs were finally hatched out, that the grubs so resulting immediately commenced feeding, tra- velling continually away from the centre, and that as they waxed in stature they necessarily enlarged their tracts. Having proceeded thus far in my discoveries, and 126 HARDWICKE'S SCIENCE-GOSSIP. my interest being thoroughly aroused, I determined to prosecute my search. For this purpose a number of ash-branches were selected, and carefully laid on one side. A cursory glance at these showed nothing at all abnormal or noticeable, but a more careful examination disclosed a number of small ridges of discoloured skin traversing the branches in various directions. Taking off the bark at these points, the main passage before-mentioned was exposed to view. On tracing this up or down the stem it was always found to terminate below an old leaf-scar. Finding this, I now examined the leaf-scars, and in a majority of cases found a small hole filled below with fine dust. Detaching the skin at this point a small run was visible, passing just below the scar to the right or left ; and when clear of it branching off in two opposite directions up and down the branch (fig. 89), but usually more or less spirally arranged. At the entrance to this passage was generally found a small beetle, and another some distance along. There were mostly two, but whether they were male and female, or whether they were both females acting in concert I was not able to determine. The diameter of the principal passage is about i-i6th in. The beetle I found to be Hylisinus fraxini. It appears to be very prolific, and must be very destructive to the trees it attacks. In the cases I examined there were usually from 60 to 80 diverging passages, and at the end of each, as before-stated, was a fat larval beetle, busily engaged excavating for its daily rations. In many branches, almost every node was the starting-point for these channels, and the amount of mischief done to the tree may well be imagined when we bear in mind the numbers found in each run, and their method of working side by side so closely as to all but completely sever the bark from the wood. After examining a great number, a few specimens were put on one side for the purpose of watching their progress towards maturity. On the 28th August the now-transformed larvae began to emerge in the imago form, i.e., as perfect winged beetles. They were pretty little insects, varying considerably in colour, some being much lighter than others, and most distinctly clouded. On raising the bark I found a great number still occupying their snug quarters, where they had fared so comfortably during their early days, and where they had undergone their final change preparatory to entering upon a more active and greatly extended sphere of action. I now found that, prior to under- going their first metamorphosis, i.e., assuming the pupa form, they sink for themselves, at the end of their respective galleries, a comparatively deep pit, in which the change takes place. In these pits they may be found in August ready to make their way out previous to setting up housekeeping on their own account. Noel Humphreys gave an interesting account of these beetles in the pages of the "Intellectual Ob- server," in 1862. He there states that they attack the elm as well as the ash, and that their ravages are often terrible. The ash, however, is their favourite tree, as may be gathered from the specific name {Fraxini) of the insect. Having thus learnt how numerous and destructive these insects are, and remembering that in a row of ash-trees that I passed daily some were flourishing grandly while others were dead or dying, I determined to ascertain whether these beetles had anything to do with the matter. On examining the dead and dying trees, I found them literally riddled with minute shot-like holes — the significance of which was now only too plain to me. I had often noticed the dif- ference between these trees, whose conditions, as to soil, climate, &c, appeared to be identical, and wondered what could be the cause of the death of these, while those by their side grew vigorously. Had I noticed these holes a few weeks earlier, their meaning would have been hidden from me, but now, from the study of a few faggot-sticks I was able to understand most clearly what had been going on beneath the bark of these unfortunate trees, and why. they had gradually, without any apparent cause, drooped and died, branch by branch and limb by limb, until a giant mass of mere dry sticks remained, rearing its weird and awe-inspiring form against the sky. Thus, from the careful examination of a " faggot - stick " I gathered the life-history — or at all events the leading facts in the life-history — of a pretty little British beetle, which undoubtedly plays an important part in the "struggle for existence," which ultimately results in the "survival of the fittest," that has to compete in common with every other member of the organic world. Rochester. John Hepworth. WHAT A DIATOM IS. ( Continued from page 107. ) IT is the act of generation that brings back the normal size of the frustule, already reduced in dimensions by repeated deduplications ; if this did not take place, the diatom would (theoretically) at last become a mere atom — a circumstance which never takes place. The act of generation, properly so called, may be said to consist in all organisms of a simple amalgama- tion of two more or less distinct particles of proto- plasm. The diatoms are no exception to this rule, and with them this union comprises either the contents of two distinct frus titles, or of differentiated protoplasm contained in a single frustule. This phenomenon is called the conjugation of the Diatomaceaa. The study of the phenomena of conjugation in some forty species of diatoms, by various distinguished microscopic observers, has not furnished us with such complete HARD WICKE >S SCIENCE - G OSSIP. 127 results as we might desire, and the greatest circum- spection is necessary in the interpretation of the facts observed. That which we appear to know for certain is that conjugation takes place in diatoms, and that the material result of this is the formation of what is called a sporangium. This proceeds either from the condensation of the protoplasm and endochrome con- tained in the interior of a single frustule, of which the valves are separated in such a manner as to enlarge the internal capacity of the frustule, the matter thus amassed giving place, according to the species, to the formation of one or two bodies, more or less round or oval ; these very soon secrete on their surfaces a hard shell (test-resistant). These are the Sporangia, or the intimate union and fusion of the protoplasm of two contiguous frustules that have partially opened along the sections of the connectives for its liberation. Here also is formed, according to circumstances, one or two sporangia. When the sporangium [is pro- duced by a single primitive frustule, it is probable that the original primordial utricle, which was already pre- viously divided into two for the purpose of deduplica- tion before the secretion of the new siliceous valves, and that the sporangium, formed of the differentiated protoplasm, produces that of the two young utricles. This, however, requires to be verified by direct obser- vation. In both cases there is promptly developed in the interior of the sporangium a special body, which varies in form according to the genus, which grows rapidly, and which possesses an envelope rich in silica, and is able to resist calcination and the action of concentrated acids ; it is often wrinkled across the external surface ; this is the Aitxospore. This last is the analogue of the zygospore of Zygne- maceae. Its growth at last bursts the sporangium, and carries with it to its apices, the two halves of the sporangium-like little caps. "When the auxospore has attained a size generally double, or even more, of the frustule that has origi- nally produced it, we discover in its interior, lying across the envelope, the valves forming the new frus- tule. These last are apparently the product of a true generative act, and which we are justified in consider- ing for the moment as sexual, although our means of observation up to the present are much too imperfect to permit of our being able to distinguish the male from the female element in the products of conjuga- tion. The first frustule is called the sporangia! frus- tule. With this is destined to commence a new cycle of vegetative generations by deduplication, which continues up to the moment that a new conjugation takes place. It restores also the normal size of the frustules degenerated by the repeated deduplications, and we see here the singular phenomenon of the child being at its birth much larger than its parents. The sporangial frustule is always enormously large in com- parison with its parents, the empty valves and con- nectives of which are generally retained by a mass of gelatinous matter secreted previous to the act of con- jugation. We believe that other modes of reproduc- tion exist in the diatomacea? beside that of conjuga- tion, but the biology of these little beings is much too imperfect to enable us to hazard any profound hypo- thesis on this subject. It is evident that all the frustules do not finish by conjugating ; this is highly improbable, when we consider the rarity of that phenomenon. Some other explanation is necessary to account for the variations in the dimensions we meet with in the different individuals of the same series other than that of deduplication, as without it those frustules that escape conjugation would go on diminishing in size indefinitely, and we know from observation that every species of diatom possesses a maximum and minimum of dimension which it never passes.* The rapid appearance of species where they did not previously exist — their periodic succession at deter- mined seasons, and which we had never been able to find in the intervals in the same locality — this presents the possibility of a mode of generation which is only yet suspected, by germs, by micro or macro-zoospores, possibly even in the first case with the formation of zygozoospores, as it takes place among many of the inferior algae who live under the same conditions as the diatoms. We enter here a field of study of the greatest interest and novelty to every naturalist furnished with a good microscope, and possessing time and patience neces- sary for such researches, and we dare affirm that any member of a microscopical society who shall follow with care the entire life cycle of a single species of diatom, even the commonest, will probably render a greater service to science than if he had described and figured hundreds of frustules from the four quarters of the globe. Note. — In a communicationf to M. Deby, Professor H. L. Smith makes the following remarks : — ' ' I have received your brochure, entitled, ' Ce que c'est qu'une Diatomee,' for which I thank you. What you say is generally correct. I have myself published a part in the 'Lens' in 1873, but I entirely differ from you on certain points. The communication which you say exists between the internal protoplasmic substance and the external medium does not take place, as you say, along the sutures of the connective, but in the naviculus, properly so called ; it exists along the raphe or median line, and in the Nitzschias and Surirellas along the ala? and carina?. (This is an in- teresting confirmation of Ehrenberg's observations, who had also studied this phenomenon many years before J. D. ) I possess drawings showing the injec- * The process of self-division, no doubt, gradually exhausts the vigour of the sporangial frustule, but this power is possibly retained longer by some individuals than others (thus bearing a striking resemblance to parthenogenesis in the Aphides, &c), but there is probably no fixed limit. I have seen much smaller valves of A ulacodiscus Kittoni in a New Zealand gathering than in a copious and pure gathering from Vera Cruz. — F. K. t A translation into the French appears in the Bulletin de la Socicte Beige de microscopie for Dec, 1S77. 128 HARDWICKE'S SCIENCE -GOSSIP. tion of indigo along the median line, and its penetra- tion into the interior of the diatom, particularly in Stauroneis kept for some days in indigo water. Beside this demonstration, I was able, by the em- ployment of the pigment, to obtain a glimpse of the mode of progression in the large Pinnularias. I am half tempted to send you my drawings. Many cases of conjugation are not always so simple as is generally supposed. " When a large Pinnularia is observed in the field quite blue with indigo, we see in side-view (fig. 90) little particles of indigo running along the (X) raphe as far as the end of the median line ; here they accu- mulate into a little ball, at C. In fig. 90, (7 b, a little ball is seen on each side, but that which is most surprising is, these balls revolve on their axes. When the ball acquires a little size it suddenly breaks, and the particles sail off in the direction a e (fig. 91), and a new ball is again formed ; this is on supposition d < — a • -- ^""V Fig. 90. Side view of Pinnularia, showing balls of Indigo running alongside. -O •^>*SMS^a3BB83!D) |f i| d Fig. 91. Diatom, showing mode in which ball of Indigo breaks. Fig. 92. Diatom in act of Deduplication at a and b. that the frustule is moving in the direction of the arrow d. Moving the other way, the particles slip down the other half of the median line or raphe, and form a little ball, as before, at its end. I have watched this for hours, and I can assure you that it is a glorious sight. I had some magnificent large Pin- nularias, and these effects were best seen when the motion forward of the frustule was prevented by its coming in contact with some particle of sand or dust. The colour in the field was the ordinary indigo-blue water colour, pretty thick. Furthermore, there always appeared a gelatinous envelope which pre- vented the actual contact of the indigo particles with the frustule, which, as it moved forward, pushed them in advance, as at d (fig. 90). The slightest applica- tion of aniline red (Fuchsine) demonstrates the external gelatinous covering by the absorption of the colour, even before the colour is seen elsewhere in the field, but this aniline instantly arrests all motion of the diatom. " The act of deduplication of the primordial utricle is effected with great rapidity; it manifestly commences at the two ends of the frustule at the points a and b (fig. 92) ; the membrane there forms a fold, which is gradually prolonged until it reaches the central nucleolar mass ; this occupies about six minutes from the commencement of the phenomenon. " I have never been able to perceive a true circular nucleus in Pinnularia major (Ehr. ), but it is very visible in divers species of navicula, such as N. firma, and in the Stauroneis. It is very manifest in the Surirellas. The frustules only separate from each other in seven days, rarely before. The conjugation in the Pinnularias continues for four days before the act is entirely completed. I have followed it step by step, and measured with a micrometer the sporangial development. ... I remain, &c, "H. L. Smith." (The above experiments are of great interest, and will, I hope, be repeated by other diatomists. The study of the living frustule has, I fear, been too much neglected for that of the dead valve, the diatomist having been seduced by the elegance of its contour and the beauty of its ornamentation. If, as Professor Smith describes, the communication with the interior of the frustule is through minute apertures at the termination of the raphe or median line, it is evident that those forms which do not possess this line, and are neither alate nor carinate, must possess some other means of communication ; in the Aulacodisci this may be by means of the processes which are apparently perforate, but in the Triceratia, Coscino- disci, &c, I think M. Deby's suggestion, that it takes place at the margins of the connectives, is probably correct. — F. K.) Those interested in the structure of the diatom frus- tule will find much valuable information in the papers of Dr. Wallich, particularly that published in the Monthly Mic. Jour., Feb. I, 1877. A paper by the same author, entitled " Are the Desmids and Dia- toms simple Cells?" will be found in the April part of Popular Science Rci'ieiv, 1877. A GLASS-EATING LICHEN. ON visiting an antiquarian friend, to whom I am indebted for the loan of specimens, &c, some old stained glass of about the fifteenth century was submitted to me, and an opinion asked as to the cause of certain irregular worm-eaten-looking holes of some depth, occurring generally only over one surface of the plates. My friend informed me that it was publicly discussed some twenty years ago as to its cause, for it had often been observed in old glass windows. At HARDWICKE'S SCIENCE-GOSSIP. 129 first, on carelessly looking at it, it appeared to be explained by that disintegration which gives rise to those beautiful iridescent scales on old glass, and especially in the old black glass Dutch bottles, whose surface, on removing the scales, presented somewhat the appearance described. My friend informed me it was considered by some to have been made by the 95 is a portion seen by reflected light of the surface of some dark green glass twice its natural size, which shows the general arrangement. On submitting them to microscopical examination, to my delight, all the edges of these masses appeared to be spiked, and, although they had been in my friend's possession for thirty years, showed the cellular structure deline- ated in fig. A (Hartnack, ob. 7, oc. 2, tube drawn out), being the portion C of fig. B (Hartnack, ob. 4, oc. 4, tube in). I have shown them to two botanists, who are quite satisfied as to their nature ; but they asked the question as to whether they might not be lichens which had occupied already existing holes; this, however, was capable of denial on the following grounds. It will be observed in fig. D that the bodies commenced to grow at certain points, but as they became larger they also became confluent, forming irregular masses with a serpiginous margin, to which the depression in the glass always corresponds ; the central portion of each depression is level, and however large it may be, it is of the same depth, the steep edges Fig. 93. Cellular Structure, of Glass-eating Lichen (mag.). See fig. 94, at c. Fig. 95. Lichen as seen by reflected light on green glass. Fig. 96. Erosions running in nearly straight lines. Fig. 94. Glass-eating Lichen (mag.). workmen, to give a better effect to the light ; but the irregularity sets that question at rest directly, though it stimulated me to look into the matter more care- fully, and on a careful examination I was fully satis- fied that each depression was occupied by a small lichen, such as we see covering grave-stones ; at figure being occupied by the growing processes which seem alone to have the absorbing power ; and lastly, on removing the growth by various re-agents, the exact figure of the points and even in some instances of the individual cells, are seen beautifully cut and em- bossed upon the glass. It occurs on the side opposite, and not on the painted side, which, in glazing, is placed on the inside of the window, and therefore would be unfavourable to the growth of these plants ; neither does it occur round the edges, which are over- lapped by the lead. One point was at first puzzling ; these erosions sometimes appearing to run in straight lines, as seen in fig. E ; it could, however, be de- monstrated by a magnifying glass that it occurred along old scratches, the rough surface of which had afforded the most easy attachment for the spores and young plant. It is to my friend, Mr. T. Coates Archer, to whom I am indebted for the specimens, and also for a few notes as to their history. They are from the Church of Little Dunmow, in Essex (celebrated for the annual distribution of a flitch of bacon), from which it was removed by some glazier of Felsted, from whom my friend bought it, and has now had it over thirty years. i3o HARD WICKE'S SCIENCE -G OSSIP. The remarks may at first appear to be of little interest, but in putting them forward it is with the hope that they will teach us to at least take pre- cautions to protect or remove such an unpleasant enemy from some of the most beautiful works of art. H. T. Johnston-Lavis, ON PREPARING AND MOUNTING LEAVES AND OTHER PARTS OF PLANTS TO SHOW THE CRYSTALS IN SITU. By W. H. Hammond. EVER since I first began to use the microscope Plant Crystals have been objects of interest to me, not only on account of their great beauty as "objects," especially with the polariscope, but also because they open a new and comparatively unex- plored region of phytotomy ; in fact, except in Pro- fessor Gulliver's writings, they are hardly mentioned, or very summarily dealt with by other botanical writers. At first I used to be content with a sight of them after boiling and mashing parts of plants, but I soon became dissatisfied with this method, and began to look about for some means of examining the crystals just as they grew in the different plants ; for- tunately I happened to look at a back number of Science-Gossip (January, 1875), and came across a paper by the late Dr. Beatty, " On Decolouring and Staining Vegetable Tissues for Microscopic Ex- amination " ; other papers, by Dr. Beatty, came out afterwards, and I gathered many valuable hints from them oh the subject. I am often asked how my preparations are made, so I will describe my process of preparing and mounting, for the benefit of other workers with the microscope who are interested in these beautiful, but much neglected, marvels. The first thing to be done is to get the bleaching solution, and this may be very easily prepared as follows : — Equal weights (say four ounces) of chlori- nated lime and common washing soda, both in fine powder, are put into a half-gallon bottle of cold water, and well shaken together, then left to stand till the fluid is quite clear, this is poured off gently into another bottle, and a strong solution of washing soda added as long as a white powder is thrown down. The mixture is again left till clear, and then poured off; this is the bleaching fluid. The original substances in the first bottle may be again treated with cold water. Leaves and other tissues are kept in this fluid till bleached and semi-transparent, large or thick leaves should be cut up into small pieces. I find the small, round night-light glasses, which may be bought for a penny each, are very convenient for bleaching the tissues in, and also for the dyeing and subsequent soakings, covering them over with pieces of glass to keep out the dust. It is not always convenient to prepare and mount leaves directly they are gathered, so I always carry with me a small account-book, interleaved with blotting paper, and with an elastic band round it ; leaves are put into this when gathered, and by carrying it in the breast-pocket of the coat, they are soon dried by the warmth of the body ; in the summer time several books full of leaves are col- lected, ready for the long winter evenings. Dried leaves will bleach sooner than fresh-gathered ones. Having bleached some leaves (the time it takes to do this varying very much), they must be well washed in warm water in basins or pie-dishes, changing the water often for about two days, and brushing the tissues with soft camel-hair brushes. I often find it of use to put the plant tissues into acetic acid and water for about a minute before the final washing, but acids must be very cautiously used, or the crystals may be dissolved. The leaves or tissues are then ready to go into either of the following dyes : — The carmine dye is prepared partly according to Dr. Beales's formula, viz. : — Carmine 20 grains. Strong liquor ammonite ... \ dram. Pure water 4 ounces. The carmine is heated in a test tube with the am- monia till dissolved, and then added to the water in a bottle and well shaken, and left to settle or be filtered. The dye should smell strongly ammoniacal. Sections are soon dyed in the above, but leaves take several days, or a week or more. Sections of the India-rubber plant leaf, or of the common fig, dyed in carmine, will show the stalked crystals, called cystoliths, very nicely ; pieces of the leaves of the fig, hop, nettle, wall-pellitory, or wych elm, dyed, will show the cystoliths when viewed from above or below. I generally mount two leaves or pieces on the same slide, one with the superior and one with the inferior surface uppermost. The logwood dye is prepared according to the prescription in Rutherford's " Histology." A. Make a saturated solution of calcium chloride in 70 per cent, alcohol, and then add alum to saturation. B. A saturated solution of alum in 70 per cent, alcohol. C. Add A to B in the proportion of one to eight. D. A barely alkaline saturated solution of logwood in water. Add D to C till a deep violet-coloured dye is obtained. I make D by boiling logwood chips with water and a very little potash, then filtering. I generally use methylated spirit where alcohol i< recommended. The leaves and tissues may be immersed in either of the above dyes, straight from the last wash-water, and will be dyed in either in about the same time. HARD WICKE'S S CTENCE - G O SSI P. 131 Tissues when dyed must be put into clean water, then, if dyed with carmine, into acetic acid and water for a minute ; if dyed with logwood they must be put into alum and water, they must then be put into two changes of clean water and brushed with soft brushes. The remaining operations will be described further on. I also use a blue dye made by pouring six or eight drops of Judson's aniline blue into an ounce of methylated spirit, shaking and filtering. Leaves and sections to be dyed in this must be soaked in methy- lated spirit for about a day after being taken out of the last wash-water. After dyeing they must be washed and brushed in methylated spirit. Leaves generally require to be kept in this dye for about a week. Leaves and sections after undergoing these operations may either be mounted in Deane's gelatine medium or in dammar or balsam dissolved in ben- zole. I like to have specimens of the same kind of leaves dyed in all three colours and mounted both ways, or only the blue-dyed ones mounted in balsam or dammar. Leaves or sections, which are to be mounted in Deane's medium, should after the final washing, after dyeing, be put into the following solution as recom- mended by Mr. Deane, for two days : — Rectified spirit \\ ounces. Pure water 1^ ounces. Pure glycerine 5 drams. Take the tissues out of the above fluid, drain off as much as possible and mount in the medium. I prefer this way of mounting for most leaves and other tissues, for this reason, it does not make them so very transparent as dammar or balsam does, and generally every cell-wall is distinctly seen, the crystals in the cells, the hairs, and every other part of the leaf. Leaves to be mounted in dammar or balsam should be thoroughly dried from the last washing, after dyeing, this is best done by putting them into one of the before-mentioned interleaved books, and carrying in the pocket for a day or two. When thoroughly dry take them out and put them into a small wide- mouthed bottle, pour over them benzine enough to cover them, and cork up tightly till perfectly trans- parent. When ready to mount, take the leaves out of the benzine, drain, but do not dry them, and mount quickly in balsam or dammar dissolved in benzine (benzine collas is the best benzine to use). Leaves mounted in this way are beautiful objects for the micro-polariscope, if they contain crystals or have hairs upon them, but they are nearly always so transparent that the cell-walls are quite ob- literated. Good leaves to experiment upon, for sphreraphides, are Chickweed, Mercury, Wild Strawberry, and many of the Rosaces. For long crystal prisms — the outer skin of the Gladiolus Bulb, Onion, Shalot, and Garlic. For short prismatic crystals— Clover, Sanfoin, Beech, and Trefoil. For true raphides— Squill Bulb, Hyacinth, Blue Bell, Lemna Trisulca, Balsams, Willow Herbs, Fuchsias, and Arums. Cystoliths. — Leaves containing these should not be mounted in balsam or dammar, as they do not polarize, and are generally rendered quite invisible by this way of mounting. No one need be afraid of not being able to procure specimens, for I believe the greater part of our plants contain crystals of one kind or other ; they may be well and easily studied by mounting in Deane's medium after preparing and dyeing, they may also often be very well seen by simply bleaching, washing, and examining in water. And I may add that the crystals afford an abundance of beautiful materials for the microscope, and that the more they are studied the more they will be admired. Their taxonomic and physiological significance too, is an important subject for further research, concerning which, Pro- fessor Gulliver has given the results of extensive observations. He recommends boiling the plant tissues in a solution of caustic potash ; this is an easy way of exposing some crystals and their cells, though by no means so effectual in the preparation of beau- tiful and instructive slides, as the methods which I have attempted to describe. NOTES ON A DREDGING EXPEDITION. BEFORE entering upon the subject of actual dredging, it would, perhaps, be as well to give a brief description of the little fishing-village which formed my head-quarters. Rossbeigh is a small watering-place on the east shore of Dingle Bay, in Kerry, Ireland. It is the property of the Hon. Row- land Winn, and consists of a few lodges, one of which, in the month of September last, I rented. About a mile away from these lodges are a few scat- tered fishermen's huts ; and when the reader is informed that Rossbeigh is eight miles from the nearest town, and twenty from any railway station, he will understand that I had greatly to depend upon my own resources. On looking at the map of this district, it will be noticed that there is a long spit of land running out towards a place called "Inch": this spit is over three miles in length, and is entirely composed of sand. From the signal-towers at the termination of this peninsula to a point called Feaklecally, an ima- ginary line may be drawn, and within this no great depth of water can, I believe, be found, for the fol- lowing reason : Rossbeigh is situated on a mountain- side, a mountain whose base terminates upon the seashore ; the soil at its foot is largely composed of a conglomerate, containing a great quantity of rounded r32 HA RDW1 CKE 'S S CIE NCE . G 0 SSIP. stones, and formed, in all likelihood, by the conti- nual detrition of the mountain-streams. This soil, being so friable, falls an easy prey to the eroding influence of water, the sea having made considerable inroads into the land ; so much so, that a lodge which about thirty years ago was occupied by Lord Headley, is now entirely washed away ; its site being utterly unrecognizable. Now the headland of Feaklecally checks any currents running up from the Atlantic, while the sandhills at Rossbeigh are another break- water. Thus the bottom of the bay at this portion is shallow, and largely consists of the rounded boulders of the conglomerate. I have given this description in order to explain the kind of sea-bed I had to work pon. We will now proceed to the actual dredging. The first requisite is of course the dredge and rope. The former of the two consists of a strong iron frame- Fig. 97. Lucertiaria auricula. work (if galvanized the better) ; the scrapers are two in number, so that, no matter on which side the dredge may fall, it can work. The rope is made of good stout material, and ought to be "barked," which can be done in any tan-yard for a trifle. The rope is attached to the dredge in a somewhat peculiar manner ; the end is tied securely to only one of the attachment rings, and with a piece of spun yarn the other ring is whipped to its fellow ; so that, supposing the dredge to have anchored on a stone, and that it cannot be liberated by retracing ground, and thereby reversing the strain on the dredge, the boat is pulled rapidly until the spun yarn breaks ; then the dredge, being capsized, is freed easily. The next item is the boat : the heavier this is, within reason, the better. In this I was, at the outset, unfortunate, as at first I could only obtain one of the Irish native canvas canoes, which, drawing but little water and keelless, would, on the smallest provocation, perform a rotatory motion, which would result in heading in a totally opposite direction to the one started from ; however, Mr. Winn very kindly had a small whale- boat belonging to him repaired for me, which served my purpose excellently. Across the boat, resting on each gunwale, I had a board fixed, as a support for the tray which received the contents of the dredge. This little detail is a very useful one, as it not only saves the trouble of stooping to examine the spoil, but also prevents the giddiness which often attends that position, and which is very frequently the herald of sea-sickness. Three sieves, of varying meshes, are also very useful ; one, a coarse mesh, of about half-inch diameter ; the second moderate, about one eighth-inch ; and the third of perforated zinc. Their use will be afterwards explained. Also a shal- low box as a receptacle for the contents of the dredge, plenty of bottles, in which to store the Fig. 98. Pisa tetraodon. treasures, a gallon can of fresh water, a good strong pocket-knife, a brass forceps and a pocket-lens com- plete the equipment. The last I would recommend to be slung round the neck, so that it may be free, as it is neither an easy nor a clean task to be searching for it in the pocket with wet and often slimy hands. Now all being completed, dressed in your oldest clothes, and legs encased in mackintosh leggings, the boat is pulled out to the dredging-ground, and there the dredge is thrown overboard, near the stern, on the windward side, taking care that the rope runs freely. When it touches the bottom, the boat should be rapidly pulled until enough rope has been let out : roughly speaking, there should be twice as much rope out as the depth of the water dredged. When enough is paid out, a turn or two should be taken round a belaying-pin, and the inner end retained in one hand, while the other should clasp the part outside the boat, by which aid, the rope serving by its vibration as a kind of telephone, the working of the dredge HARD WICKE 'S S CIENCE -GOSS IP. i33 may be detected. If the dredge is jerking and bounding, the boat is being pulled too fast, whereas, on the other hand, too slow a progress causes the irons to sink too deeply ; but when all is as it should be, the hand feels a gentle quivering, which proves the machine is working steadily. Do not, how- ever, hold the rope too tightly, else, in the event of the dredge being suddenly anchored by a stone, you, in all probability, will collide rather unpleasantly with the side of the boat. Should the dredge get entangled, the best way to free it is to retrace ground, and, in most cases, it will free itself on being place in the tray. The process of sifting is greatly facilitated by washing the top mass. My first day's dredging off Rossbeigh was about a mile from shore. This attempt was made from a. native canoe, and from the little hold the craft had upon the water, the dredge could scarcely be got to work. The only benefit that accrued to me from that day's work was a rough knowledge of the depth of the water and the nature of sea-bottom, which, unfortunately, largely consisted of heavy, rounded stones. The next day's work was undertaken at low tide. The course chosen was further out to sea ; but Fi:j. 99. NymJ>ho)i gracilis. towed in an opposite direction ; if that means fails, the rope must be strained until the spun yarn, already alluded to, breaks, when the dredge, being capsized, will easily free itself. Supposing all to have gone on well, after half an hour the dredge may be lifted rapidly, but steadily, to the surface, taking care to lift it clear of the side of the boat, else you run the danger of crushing the Crustacea and shells it may contain, and the contents emptied into sieve No. I (the coarsest). Large shells, stones, &c, are here retained, the smaller specimens successively passing into sieves Nos. 2 and 3, and finally the very minute forms find a resting- even at this distance from land (about 1 h mile from shore), where comparatively deep water might have been expected, the depth did not, I should judge, exceed 5 to 7 fathoms, the dredge coming up choked with Rhodosferms and other sea-weeds, mostly Polysiphonia and Ptilota. However, on emptying the dredge, a variety of marine animals were dis- covered, which, although not rare, were none the less curious. Two specimens of Pisa tctraodon rather obtrusively first made their appearance, and, were followed soon by what very easily might have been mistaken for a lump of sea-weed, Stenorhyiichits phalangium ; several specimens of the Hermit Crab- *34 HARD J VI CKE >S S CI EN CE-GO SSI P. ( Pagurus Bernhardii ) were also inclosed. On more closely examining some of the sea-weed, I found several specimens of Caprella linearis, a most grotesque-looking animal, its movements very much resembling the walk of the looper caterpiller (Brim- stone Moth), also a specimen of Nympkon gracilis, very few shells, and those very common ones. On looking over the result the next day, I found a great quantity of foraminifera. I also found a few sponges and zoophytes : of the latter, Laomedea genicidata was the most common ; also two specimens of Luccrnaria, and, of course, any quantity of Membranipora pilosa. The next day's work was undertaken in company with Dr. Battersby, who kindly gave me the benefit of his knowledge of this coast, of which he is a resident, and we judged it wiser to commence lower down the coast, off a small coast-guard station, called Kells ; but although the water was considerably deeper and more sheltered, we found very little more to reward the trouble : a few shells, all dead and containing Pagurus, a dead specimen of the "shoul- der of mutton " shell {Aporrhais pes-pelicani), and one living ATatica. In the cavities of some of the roots of the Tangle {Lai/iinaria bulbosa) brought up, -a few specimens of Patella pellucida were found. We also obtained a few specimens of Ophiocoma ncglecta and one of O. rosida ; but on the whole, probably because of the sharp currents running along the •coast, the conditions conducing to animal life were not very favourable. Before concluding, perhaps a few words respecting the method of preserving specimens collected would not be out of place. The best methylated spirits of wine and ordinary sea-water mixed in the proportion of one part spirit to five water, is as good as any for the majority of forms. In first mixing, the spirit, owing to the resin in it, is apt to throw down a cloudy precipitate. This may be got rid of by adding to the mixture about an ounce of bicarbonate of soda to each quart, and filtering the whole through paper. Sea- weeds may be simply spread out and dried. If it be wished to get the shells of foraminifera from sand dredged up, a good plan is to dry the sand thoroughly in a moderately warm oven, and when perfectly free from moisture, allow them to cool, and gently place the whole in a vessel of water, when the sand will sink to the bottom, whilst the foraminifera, containing air in their chambers, will float. The now separated foraminifera may be easily selected under a lens by simply picking them out with a camel-hair brush, to which they will adhere, if it be drawn through the lips : they may be afterwards mounted dry or in balsam. Before throwing any of the dredge contents overboard, it is a wise plan to place the sea- weed, or at least the feathery forms, in fresh water, as unexpected discoveries are revealed by this means — minute forms, whose very existence was unsuspected, are compelled to declare themselves. To briefly sum up, the dredger must have plenty of patience, must not mind wetting, evil smells, although on a sandy coast this is not very bad, and must trust as little as he possibly can to a boatman's assistance in soiling over his spoil, else half his treasures will be lost. A few good books for identifying his results are, I need not say, invaluable. The ones I have found very useful are Gosse's "Marine Zoology:" this will give the genera of the animal spoil, while "British Sea-weeds," by W. H. Harvey, will supply the botanical want. If, however, the latter is too expensive, there is a small shilling book by Mrs. Lane Clarke that is veiy useful. One, however, of the best general books, embracing a good deal, in fact, of nearly every class of sea plunder that the beginner is likely to come across, is "Half-hours at the Sea-side," by J. E. Taylor. In conclusion, I can assure my readers that if any one of them care to devote his holiday to dredging, he will not only make a great acquisition to his marine knowledge, but also to his health ; and I only wish that he may have as lovely surroundings in scenery as I had. H. A. Francis. HOW TO MAKE AN HERBARIUM. A CHAPTER FOR YOUNG COLLECTORS. By John W. Buck, B. Sc AS the summer advances doubtless many young lovers of nature will begin again gathering wild-flowers, and bringing them home in nosegays, as they have often done before, to be looked at for an hour or two and then, when withered, thrown away. Some may have tried ere this to dry them, and so to keep a record of their industry and their love for flowers, but may not have succeeded to their own satisfaction for want of a little help or instruction to begin with. It is for such that I intend this paper. To make an herbarium may sound a very imposing task, but such it need not be, for it can be done slowly and gradually — a plant at a time, if need be — and the flowers, when thoroughly dried and mounted, if taken care of will keep an indefinite time and be a lasting source of enjoyment. Nothing is so condu- cive to a knowledge of our British wild-flowers as to make as complete a collection as possible of them ; although those who take my advice and make the attempt will probably be surprised to find how few flowers they already know, and how many there are hidden away under the hedges or in the woods which they never saw before. An object such as this gives a new zest to our country walks, besides making us find out new ones ; gives us pleasant associations with particular spots as being the places where we first found such and such a new flower, fern, or moss ; and above all gives us new and brightened views of nature and of nature's God. HARDWICKE'S SCIENCE-GOSSIP. i35 To collect flowers for an herbarium, all that is neces- sary is a tin box and a trowel, though some collectors prefer to carry a portfolio containing porous paper and to put the plant under pressure on the spot. This has the advantage of securing that the flower shall lose none of its freshness while being carried home ; but it is a cumbrous and troublesome plan, and it will probably be found, in the case of most flowers, that if they are brought home in a biscuit-tin, and the roots perhaps placed in water to freshen them up if necessary before pressing, that they will appear as good as need be. It will nevertheless be found very convenient to carry a small pocket-book with some porous-paper leaves, in which to preserve at once some blossoms which will require it. For instance, it will be found impossible to bring home an entire Dandelion or Bindweed without the blossom closing up ; and the corolla of the Germander Speedwell, the bright little blue flower often called Bird's-eye or Cat's- eye, that looks so pretty and lasts so long in the summer hedgerows, will almost certainly be knocked off before the plant can be pressed at home. In such cases these parts must be put under pressure separately from the rest of the plant, and at once. Indeed, such a sleepy plant as the Tragopogon, or John-go-to- bed-at-noon, almost requires to be caught with guile. Go in the morning when it is open and press the blossom in the porous-paper book before detaching it from the stalk. Some entire plants, from their delicate and brittle nature, had better be pressed on the spot ; as, for instance, the pale-green Moschatel, the stalks of which are almost sure to snap with the slightest rough usage. Of course, when the roots have to be cleared from much earth, especially if the earth is of a clayey nature, it is absolutely necessary to bring the plant home before doing anything with it. On the whole, the tin box will be found preferable to the portfolio, and the occasions on which the latter must be used will soon be learnt by experience. Better than either, because more convenient, is the regulation vasculum, of japanned tin. For digging up the plants, since in most cases the roots must be preserved, a trowel is generally recom- mended. After a few of these have been broken by rough usage in stiff soils, or spoilt by friends who have borrowed them "just for once," they will pro- bably be replaced by a small three-pronged fork, about the same size as the trowel, but much more durable. Even this, however, has its disadvantage, which will be found out on trial. In selecting the specimens for preservation, a little discrimination should be exer- cised. It is best, perhaps, to take two plants of the same kind and dry both, and afterwards choose the best of the two for mounting. It is not advisable to take more, unless they are somewhat inaccessible, or unless, for other reasons, it should be difficult after- wards to obtain more if required, as a large number only fills up the box, takes up a great deal of room in the press, and gives much unnecessary trouble in many ways. Choose, therefore, two plants which are fairly developed, and which show, if possible, speci- mens of all the kinds of leaves the plant may possess, which have some blossoms fully open and others in bud, and, in short, which are in all respects good specimens of their kind. In some cases the leaves are not up when the flower is open, as with the Yellow Coltsfoot, which flowers in the early spring, but whose leaves are not to be found until much later. It is a mistake to choose too large a plant, under the impression that it will look well ; a medium should be aimed at in this matter, as in everything else. Perhaps it is not unnecessary to say that rare plants ought not to be exterminated. Persons who go about hunting for rarities, and who take all they can lay their hands on, are collectors only, not botanists. Many of our uncommon ferns are daily becoming rarer, and harder to be found by those who really want to study them, because they are so diligently sought after and dug up by collectors who only want them to sell. My advice is, if you find a rarity, take of it in moderation, and then, in the interests of science, keep your own counsel as to its where- abouts. In removing a plant, care must be taken not to spoil the root, nor to injure the deaves that spring from near the ground. It is often of great importance that these latter should be kept intact, as they fre- quently differ from the leaves which grow higher up the stem, and are very useful in assisting to determine the name of the species. With many plants, as is the case with the Coltsfoot, the root will be almost sure to break off sooner or later. Again, a complete Blue- bell, bulb and all entire, will be a very good certificate of perseverance for its possessor. The adhering earth should be shaken off as far as possible without doing, injury to the roots, and the rest carefully pulled off at home, or removed by holding the root (only) under a stream of water. The next thing ought to be to name the specimen ; and if I could take for granted a little knowledge of botany on the part of my readers, it would not be very difficult to show in brief the easiest method of arriving at the correct botanical and popular names of most of our common wild-flowers. For those, how- ever, who know nothing of botany, the best way is to compare the flowers brought home with the illustra- tions in some such work as Ann Pratt's " Wild- Flowers," or John's "Flowers of the Field," or Sowerby's "English Botany," or to obtain the help of some botanical friend. At all events, you need not despair of making good progress with your her- barium, even if you do not know the names of all the plants it contains, as these can generally be added afterwards. In any case, proceed to dry your plants before they lose their freshness. This is accomplished by pressing them between porous paper. The best paper for the purpose is, or used to be, made by 136 HARD WICKE'S SCIENCE- GOSSIP. Messrs. Spicer, of New Bridge-street, Blackfriars (who also supply white paper for mounting, in sheets nbout 17 in. by 11 in.), but in default of this, thick blotting-paper is said to answer, though I have not tried it. The plants must not be damp when they are put in the press, and if the roots have been washed to clean them, they should be wiped as dry as possible. If for any reason the plants are at all damp, the papers should be changed very frequently at first, even twice a day, until the excess of moisture has been removed. I am frequently asked, "How is it you manage to keep the colours of your flowers so well ? " Mainly by attention to this point — by not allowing the flowers to remain damp. Otherwise they are very apt to change their colour ; as, for example, the Wood Anemone, or Windflower, which .generally turns brown, but which may be kept white with proper care. Heaths and firs are said to require a dip in boiling water before drying, in order to pre- vent the foliage from falling off. The same process prevents succulents, such as the curious flesh-coloured parasitic Toothwort, from growing during or after pressure, by killing them at once. Here, also, the superfluous moisture should be removed by a hand- kerchief before pressing. Do not mix fresh speci- mens with dry ones, but separate them with several sheets of brown paper. Laying -the plants out will often be found a troublesome process, and one which, in order to do it well, will in some cases require time and patience, but it is not of much use to give advice on this head, except to say that the various parts of the flower should be as well exhibited as possible. For instance, where the flower has a coloured calyx and no corolla, as in Marsh Marigold, Clematis, and Wood Anemone, one blossom should be folded up so -as to show the absence of the customary row of green leaves below the coloured ones. Or the same subject may be effected by completely reversing one blossom, so that its face is towards the paper. Where bracts, or small leaflets at the base of the flower-stalks occur, as in orchids, they should be shown. The specimens should be distributed among the sheets of porous paper in such a way that the pressure may be some- what equal in all places ; but those plants, however, are likely to dry more quickly which are nearer the margin of the sheets. Thick stems had better be sliced in half longitudinally, as it prevents their taking up too much room, and also enables them to dry veiy much faster. The same course may be taken with thick roots or root-stocks, as in Primrose and Coltsfoot ; but in such cases care must be taken to leave enough root-fibres adhering to the main axis. Bulbs and corms, and the fleshy tuberous roots of orchids may also be sliced ; some recommend scooping out the inside, but this is apt to make them break and spoil under pressure. Berries and stems that are not thick enough to slice may be repeatedly pricked on their under surface, or slashed with the point of a penknife, to let out the moisture. A very good plan with fleshy berries, and thick stems and roots, is to dry them, apart from the rest of the plant, by pressing them between several folds of porous paper, and baking the whole for three-quarters of an hour in an oven. But this does not always answer, and should not be tried with green leaves, as it is apt to turn them brown. In short, the more rapid the drying process the better ; and hence the necessity of having recourse to these contrivances in order that the colours of the blossoms may not be injured through being kept damp by the slow drying of the thicker parts. ( To be continued. ) MICROSCOPY, " Cutting it fine." — At the usual conversazione which followed the ordinary meeting of the Quekett Microscopical Club on April 26th, Mr. E. T. Newton exhibited thirty-three sections of the head of one cock- roach ! — Blatla Orientalis. Fossil Diatomace^e. — The Diatomaceze in the Cementstein are described and figured (very beauti- fully) by Dr. Heiberg, in his " Kritisoversigt over de Danske Diatomeer." The richest in diatoms is the Cementstein from the island of Mors, situated in the Liimfjord, lat. 560 50' N., long. 8° 40' W. This fjord is the largest in Jutland, and runs from east to west, connecting the North Sea with the Kattegat. The material is also known as "Jutland slate." A similar deposit occurs in Fuur ; it is less affected by acid, and bears considerable resemblance to the de- posit known as "Brown coal." Another deposit is found at Nykjobing, a village on the western side of the island of Mors. This is much more difficult to prepare, neither acid nor alkali making much im- pression upon it. The following forms have been described and figured by Dr. Heiberg in his treatise, and by myself in the "Journal of the Quekett Micro- scopical Club," in the Parts for 1870 and 1871. The following are the most abundant forms in the Mors deposit : — Trinacria regina, Heiberg; T. cx- cavata=.Triccratium solenoceros, Ehr= T. A'ittou- ianum, Greville ; Trinacria Hcibcrgia, Kitton ; Do. var., Kitton; Triceratium maculatum, Kitton; Solium exsculptum, Heiberg ; Corinna elegans, Heiberg ; Stictodiscus angulatus, Grunow ; Stcpha- nogonia Danka, Grunow; Trochoscira mirabilis, Kitton ; T. spinosa, Kitton ; Hemiaulus protcus, I leiberg ; II. host His, Heiberg ; //". februatus, Heiberg; Do. (q. sp. ), Kitton; Coscinodiscus sicl- latus, Roper ; C. radiatus, Ehr ; C. octdus Iridis, Ehr ; Stephanopyxis (qu. sp.) ; Aidacodiscus yut- landkus, Kitton. Triceratia occur in the Barba- does, Californian, and Morsa deposits, as well as in the Virginian "earths." — F. Kitton, Norwich. Aquaria for MicROSConc Work. — In answer to W. D. B., I would suggest that I find several small aquaria (none of them holding more than a quart) HA RD WICKE 'S S CIENCE ■ GOSSIP. i37 much better for microscopic work than a large one, for we can hold one vip to the light with one hand and use the dipping-tube with the other. We are able to keep a better and more varied assortment, and the depth is better for dipping. Anatomical specimen-jars and beakers I find to be most con- venient, but wide-mouthed bottles maybe substituted on account of cheapness. I have usually about thirty in use, some of them being very small, and I never find it necessary to change the water. Covers of muslin, cardboard, paper, or glass can be used. Among the plants I find to be useful are Elodca canadensia, species of Chara, Callitriehe verna, Sca- pania undulata, Pilularia globidifera, Moniiafontana, and species of bog and water Hypna. — Wm. West, Bradford. Small Aquarium for Microscopic Objects. — It is likely that W. D. B. may have some difficulty in finding his animalculce, &c, if he should put them into a tank of thirty inches length and proportionate depth and breadth. I recommend him to make much smaller ones upon the following plan : — buy at the grocers some of the empty tin boxes which have held between two and three pounds of Huntley & Palmer's Water Biscuits (mind, Water), cut out the ends and sides, leaving a framework sufficient to sup- port the glass, and you have at once the skeleton of a handy and well-proportioned tank. Cement the glass with a mixture of red and white lead, let it set for two or three days, then fill the tank with water and let it remain for a week, so that the taint of the lead may be removed ; empty out, put a layer of well- washed Calais sand at the bottom, and the tank is ready. Mount it upon a slab of wood, and put four slips of thin wood to retain it in position. The tin frame should have two coats of paint or Brunswick black. I prefer the latter.—^. P. W. Canada Balsam in India. — Will slides mounted in balsam stand the heat of India ? Would it be suffi- cient to surround the cover with some heat-resisting cement ? If balsam will not do, what other medium Mill ?—//. F. Blaekttt. The Hackney Microscopical Society. — This society, which specially devotes itself to the study of microscopy and natural history, has just issued its first annual report. We are glad to see abundant signs of vigorous health, although the society is only a year old. The president is Mr. H. Ramsden, M.A., F.L.S. ; and the hon. secretary, Mr. Collis Willmott. The list of members is numerous, and includes many names well known in science. Papers on various natural history subjects, chiefly entomological, have been read, and five field excursions made during the summer. The foundation of a good natural history library has also been laid, and with such a start we shall look forward with interest to the progress of ihe society during its second year. ZOOLOGY. The Uraniid.-e. — At a recent meeting of the Zoo- logical Society, Professor Westwood communicated a memoir on the Uraniida:, a family of Lepidopterous insects, with a synopsis of the family, and a mono- graph of one of the genera, Coronidia. These insects were remarkable for their extreme beauty, and the difficulty which had attended their systematic classifi- cation. Their relations with other groups of Lepido- pterous insects were discussed at considerable length, and their numerous affinities were shown to be with certain other moths belonging to the great division of the Bombyces, whilst their connection with the Hes- perian butterflies, the Pseudo-sphinges, Erebideous Noctre and Ourapterygeous Geometra2 was disproved by their general structure, the venation of their wings, and their transformations. A synopsis of the species of all the genera was given, and a complete mono- graph with figures of the genus Coronidia. The Brachiopoda of the Atlantic. — At the same meeting Mr. Gwyn Jeffreys, F.R.S., F.Z.S., read a paper on the above subject. The areas from which the Brachiopoda were obtained were restricted to portions of the North Atlantic, including the Mediterranean. A table of all the Brachiopods known to inhabit the European seas was given, comprising ten genera and twenty-two species, of which latter four were for the first time described, and six figured. The table also particularized the geological and ba- thymetrical range of all the species. Two plates accompanied the paper, and were furnished by Mr. Davidson. Mimicry in Birds. — Mr. J. Young writes to Nature to say that in a tract of land on the coast of Kent called Reculver Marsh, the place is much fre- quented by skylarks and plovers, and that almost all the larks have incorporated the well-known alarm- note of the plover into their song. Professor Newton remarks that this fact has already attracted notice ; for at Thetford, in Norfolk, where the ringed plover is common, skylarks often mimic its peculiar cry. Starlings are said to have acquired the cries of various kinds of birds, notably those of the plover and swallow. Jays are also stated to imitate the note of the carrion-crow. The Nightingale in Derbyshire. — Pray let me note to you, and through Science-Gossip to others, the pleasing fact that a nightingale has made its appearance here, and has been nightly for the past week (and is still) singing its sweet song close to this village. It is but seldom that the nightingale visits Derbyshire at all, and this is the first time, so far as my knowledge goes, of its ever having come so far north in our county as Winster, which, as you are aware, is in the Peak district. It will be well, with your permission, to make known this visit through Science-Gossip. — Llewellynn Jewitt, F.S.A., &c. HARD WICKE'S SCIENCE - G OSSIP. Development of Proteus Anguinus. — Pro- fessor Schulze has recently discovered the mode of development of this blind amphibian. He found a specimen in the Adelsberg cave which had laid fifty-six eggs. The Proteus is proved, by researches on the ovary of a female from which the eggs were taken, to be oviparous. The Cumberland Association for the Ad- vancement of Literature and Science. — A capital plan is in successful action in Cumberland, whereby scientific societies in six of the chief towns are affiliated into the above association. The annual gathering was held in Cockermouth in Easter week ; when Mr. Isaac Fletcher, M.P., gave the presidential address. Afterwards, Sir George Airy, the Astro- nomer-Royal, delivered what he said would most probably be his last lecture, on " The Interior of the Earth." Mr. J. Clifton Ward, F.G.S., the hon. secretary, read a valuable paper on ' ' Quartz in the Lake District." Various other papers were read. The Northampton Natural History So- ciety have issued their second report, which shows a numerical increase in members, and a uniform success in all their efforts. The meetings have been held monthly, at all of which papers have been read. A list of the Lepidoptera of the county is being pre- pared by the President of the Entomological Section, Mr. A. Perry. The President of the Socie ty is the Right Hon. Lord Lilford, and the Hon. Sec. Mr. G. C. Druce. Early Appearance of Colias Edusa. — Mr. W. H. Liversedge saw three specimens of Colias edusa, on Monday, April 22, while driving near Ryde, Isle of Wight. They were strong on the wing, as if freshly emerged, or they may have hyber- nated in the imago. New British Crustacea. — Mr. Spence Bate has described two new species of small Crustacea, found by Mr. .Sims of Aberdeen. One species belongs to the DiastyluJa, and the other to the Amphipoda. The former has been named Diastylis bimarginalus, and the latter Lestrigomis spinidorsalis. Salmon Disease. — Mr. Worthington Smith de- scribes and figures the disease which this spring has destroyed such numbers of salmon in the Eden and other rivers. It is the result of the growth of a fungus, Saprolegnia ferox, in enormous quantities ; and Mr. Smith thinks the unusually vigorous growth may be due to the mildness of the past winter. BOTANY, Summer Lady's Tresses (Spiranthes astivalis). — I am quite sure all botanists will deeply regret to learn that this rare plant— which, like Gladiolus illyricits and Pulmonaria angustifclia, is to be seen nowhere in England but in the New Forest — is being rapidly cleared out of its station near the Lynd- hurst and Christ church Road. I have reason to fear that in two years not a single specimen will be found in the famous Spiranthes bog. This is deplorable — and I must explain how this much- to-be-deprecated eradication is being effected. The year before last a second edition of the "New Forest Handbook " was brought out, comprising, among other additions, a short paper on the botany of the district, and in this the author thought fit to describe, with almost painful minuteness, the exact locality of the bog. This, no doubt, was kindly meant, but the consequences are lamentable, as I shall presently show. In the vicinity of Lyndhurst, and in many other parts of the Forest, there are resi- dent "collectors," who collect insects (chiefly Lepi- doptera), birds' eggs, rare ferns, and anything else which is marketable, and dispose of them either to London dealers or to visitors. Now, when the hand- book appeared containing the notice of Spiranthes cvstivalis, and referring to it as "a plant quite peculiar to the New Forest, and to be found in no other spot in England," they saw at once a rare opportunity for increasing their returns ; since, by carefully pulling up every plant they could find, they would hold the monopoly, -and always be sure of a ready and certain sale. This was made more apparent when large numbers of visitors flocked to the bog last year, even as early as May, and when orders for specimens came in from all parts of the kingdom. Their anxiety to discover the plant as early as possible was very great, and on more than one occasion I have been asked what it looked like, and how they might know it, for a plant a few inches high, with a lax spike of small white flowers, growing in a very wet sphagnum bog, is not very likely to attract much attention. In the month of August I called at one of the cottages close by and inquired about the Spiranthes. I was told that the day previously it had been found by a visitor. " So," continued my informant, "as we have so many people asking about them, and so many orders, we went out last night and this morning and brought in every plant that was in blossom. I'll show you them," and— shall I say it? — to my intense dis- gust a large earthenware pan, about two feet in diameter, was brought out completely filled with, Spiranthes astivalis — roots, flowers, and all ! Besides this there was on the table a good handful of cut blossoms. I said I would walk over the bog and see if there were any more, which called forth the remark : "I don't think it's of any use, Sir; I don't think there's one left." However, I searched, and after wading half-knee-deep in water for an hour or so, succeeded in finding three specimens, two of which I took, and afterwards reproached myself for leaving the third ; for I felt sure it would be gone next day. I have not visited the cottage since, but I have no doubt that every visible specimen was ruthlessly HARDWICKE'S SCIENCE-GOSSIP. r39 pulled up. The only chance was for young plants which did not blossom — these of course are bound to go this year ; next year the last lingering vestiges will be swept away, and Spiranthes astivalis shall never again flourish at its celebrated station in the New Forest of Hampshire. Nothing can save it. Other bogs will, when this one is exhausted, be searched, and if, as is said, the Spiranthes occurs elsewhere in the neighbourhood, it will soon be a thing of the past, and one of the very rarest plants in the United King- dom will be extinct, unless specimens are procured from the Channel Islands and planted. Can anything be done to prevent its complete extirpation? I do not for a moment blame the cottagers ; if a wild plant will fetch a given number of shillings in the market, these people have, undoubtedly, as great a right to sell them as have more wealthy collectors to travel a long distance in order to gather them for themselves. The plants do not belong to anybody in particular, and the cottagers may as well make money out of them as by the sale of a Vanessa antiopa, a Montagu's Harrier, or a nest of raven's or honey-buzzard's eggs. The error lies in making the habitat of a rare plant publicly known. When will kind-hearltd uotanists learn that it is a grand mistake to publish the exact habitat of a rare or local species ? It is disheartening enough to know that a plant is gradually becoming more and more scarce in a district, yet it is some con- solation to know that it grows in other parts; but what must be the feeling of all right-minded botanists on learning that the only spot in the kingdom in which a species flourishes is being rapidly and surely shorn of its glory? Spiranthes cestivalis, compared with other orchids, has but small pretensions to beauty, and is far from being a conspicuous plant; and growing in the very wettest part of a peat bog, might have escaped destruction, and continued to flourish for many long years to come. The (per- haps) well-intentioned, but most injudicious, publi- cation of half-a-dozen lines will, in all probability, be the means of extirpating it, and robbing the British flora of one of its brightest gems. — E. D. Marquand, Brockenhurst. Orobanche on Begonia. — We have in our greenhouse an Orobanche that has arisen from the roots of a Begonia. In the field close to the house every year we have many Orobanche minor, arising, we presume, from the roots of clover. We therefore thought that it might be this plant, but from the descrip- tion, which I send you, you will see it is not. Sepal with no vein, or if with one vein, very indistinct ; ovate below, narrowed into one subulate point shorter than the tube of the corolla ; corolla tubular arcuate ; lips denticulate, wavy ; lobes of the lower lip nearly equal, middle one largest ; upper lip emarginate, sides patent. Stamens inserted near to the base of the corolla tube, slightly pilose, anthers dark brown. Stigma approximately two-lobed, pale red. Bract one. Leaves none. Stem purplish, four inches high. — T. y. Edwards. Look at the Hedgerows during June. — Mr. Hobkirk some few years since, in the pages of the "Naturalist," gave us an admirable article- on the sub-species of the Hawthorn ; until then they ap- peared to be overlooked by British botanists, or they merely regarded them as a single species. For several years they have furnished to us matter for thought and study, so that now we can generally when riding rapidly along the lanes point out any of the species, or varieties, when in flower. What we particularly wish, in fact our object in drawing the attention of our readers to them, is to ascertain their distribution. For the present, and as the space at our command must be limited, we describe only two of the species, probably both will be discovered in many counties : — i. CraLegus oxyacanthoides, Thnil, may be recognised with ease, by having from two to three carpels, and the peduncles and calyx tube being glabrous or smooth. — 2. Cratcegus monogyna, J acq. Carpel solitary, peduncles and calyx pubescent (clothed with fine down). The leaves are large, and deeply lobed. No. 2 is our common species in the North of England, No. I more rare. — F. Fertilization of Mergenia Erecta. — At a recent meeting of the Linna;an Society, Mr. R. I. Lynch read a paper on the mechanism for the fer- tilization of the above plant. It is a West African Acanthaceous shrub, bearing funnel-shaped corollas, with hairy anthers midway in the tube, their backs pressed against the wall. The lower slender flexible style has its double-lipped stigma so formed and placed, that insects alighting and entering towards the nectar at the bottom of the flower, on their return so move the lever-lip of the stigma as to produce pol- lenization. Position of the Pasque Flower. — I have noticed that whenever I have found the Anemone Pulsatilla it has always grown in belts of a certain altitude, as for instance : last year on the Blewberry Downs I found the above specimen ; it was growing in a belt at about 40 feet elevation, and the belt only being about 25 or 30 feet broad. I was rather sur- prised at this, and determined to take notice this year ; I have done so, and again noticed the same pecu- liarity. I have never found one out of the belt. I have consulted many Botanies, but have seen no record of so marked a peculiarity in this specimen. The question is whether this is a universal fact or only a partial one, occurring only in the localities in which I have found the Pasque Flower. — Albert Henry Barrett. Experiment with Mistletoe Berries. — Having just been making an experiment with the above, I thought it probable that some of the 14° HARD WICKE 'S S CIE NCE - G O SSIP. readers of Science-Gossip might be interested there- with. About a fortnight after Christmas I took some mistletoe berries, which had already done duty as decorations during the festive season, and squeezing each one separately, applied it to a branch or twig of a little hawthorn hedge. This hedge is now about three years old and is in vigorous growth. I applied, altogether, about two dozen seeds, without opening any of the bark at all, and left them to maintain their position by means of the viscous matter surrounding them. For a long time I could observe no outward difference on them, with the exception that they seemed to be swelling, so I had hope that life was present. About this period I one day observed that two or three of them had been pecked out by the birds. However, as I did not notice any more marauding behaviour of this kind, I am hopeful that a considerable percentage of the seed thus sown may grow. The next step in the way of progress — the seeds in addition to having become considerably swollen became of a bright green colour, and on several of the finest I could distinctly make out the lobed character which the cotyledons still wrapped together are beginning to assume. Last week, as I was making one of my daily inspections, I became aware of several of the little seeds having effected a junction with the branches they are attached to. Since then I have observed more of them, and I am congratulating myself that my venture will succeed. As the hedge is now fast becoming green it daily becomes a more difficult matter to find out the where- abouts of my friends. I must now wait to the end of the year, when the Hawthorn puts on its winter garb, before I shall be able to count how many have "taken." As Devonshire is famous for producing very little of the mystic parasite, I have had the more pleasure in my pursuit, and hope that the " Mistletoe Bough " may become a permanent denizen of my hedge. — J. Mills Higgitis, Silverton, Devon. GEOLOGY. Gold in New Guinea. — The discovery of gold i in this hitherto unknown country promises, ere long, to make us better acquainted with its natural history and mineral productions. Expeditions are being fitted out, both in Australia and New Zealand, for the exploration of the interior, and the collection of general trustworthy information. Ancient Vegetation. — Professor Claypole has found the remains of Lepidodendron-like plants in the Clinton limestones of Ohio, belonging to the Upper Silurian period. The provisional name of Glyptodcndron has been given to this, the oldest known American plant. As representing arborescent vegetation, it may be regarded as the oldest known specimen in the world. Fossil Insects. — Mr. Scudder is preparing a work on the fossil insects of America. He has recently spent a couple of months in the Western Territories, collecting fossil insects. Six to seven thousand specimens were obtained from Florissant ; all being remarkable for their beautiful preservation. There is every reason to believe that the tertiary strata of the Rocky Mountains are richer in the remains of fossil insects than any other part of the world. Mr. Scudder possesses more than twelve thousand specimens. Fossil Fresh-Water Sponges. — Mr. J. T. Young, F.G. S., announces the discovery of spicules of fresh- water sponges in the so-called " flints " found in the Purbeck limestones. The spicules are like those of Spotigilla Jluviatilis, only larger. This is the first discovery of fossil fresh-water sponges in Great Britain. Mr. Young has called his specimen Spongilla Pio beckensis. NOTES AND QUERIES, Irish Wolf-dogs. — Will any one kindly inform me if the' above dogs are extinct; if not, to whom they belong ? — L. M. How to Make Plaster Casts of Fish, &c. — I have read with much interest your article in SciENCE- Gossip on the making of " Plaster Casts of Fishes." Being a user of plaster in my occupation as a dentist, I venture to give you a better plan of managing that material. The process of mixing water with plaster should be as follows : — Put water first into the mixing vessel, and then add the plaster to it by shaking it from a scoop as evenly as you can into all parts of the water (in large quantities through a sieve), until the dry plaster floats on the surface ; stir it slowly a little ; then you have the proper quantity to make it of the consistence of cream, which is also the proper consist- ence to use for casting ; then shake or jar the vessel a little, and let it stand for a few seconds to get rid of air-bubbles. The plaster, in this state, will give plenty of time to mix more and add if necessary. You may use any quality ; but I should prefer "super- fine," 9s. per cwt. Trusting this will facilitate your interesting work. — E. R. Pearce. A Plague of Flies. — A small district, lying in the counties of Antrim and Derry, has this spring been afflicted with a plague of flies, entailing both inconvenience and loss to the inhabitants. The area affected was the river Bann, for about a mile and a half of its course, near Kilrea, and the pastures adjoining. The stones and plants in the river were completely encrusted with the pupa-cases of the insects, from which they issued in millions and attacked both men and cattle. The latter had to be removed from the vicinity, and many of the people had their heads and necks much swollen, owing to- the venomous nature of the sting with which the insect was armed. The flies lived only for a few days, and left their dead carcases heaped up on the river banks, in some places three inches deep ; they have now (1st May) almost disappeared. Some of those supposed to be wise in such matters think that these flies have had their origin in the battle-fields of Turkey ; others that their advent is a portent of omin- HA R D WICKE ' S S CI E NCR- G OSS IP. 141 ous coming disasters. I enclose specimens of the flies, and also of the pupa-cases : I presume they belong to the Tabanidas, or horse-flies ; but why have they appeared in such force, and taken possession of the limited area referred to, where they had not attracted attention previously? — S. A. Stewart, North-street, Belfast. Removing Surplus Balsam. — Allow me to call the attention of those microscopists who mount their own objects, to a most useful and effective implement for removing surplus balsam. It is the invention of Mr. Carey, of Norwood, and can be seen, by his permission, at Mr. Baker's, 244, High Holborn. I call it "The Carey Scraper." In using it, heat accord- ing to the hardness of the balsam, and run the scraper round the edge of the covering-glass, wiping off the removed balsam on a piece of paper. It comes off freely, and leaves but very little on the slide to be fin- ished off by benzole or other spirit.- — John Bramhall. Natterjack Toad on the Shores of the Solway Firth (p. 67).— Sir William Jardine mentions the Natterjack as occurring "in a marsh on the coast of the Solway Firth, almost brackish, and within a hundred yards of spring-tide high-water mark. It lies between the village of Carse and S otherness Point, where I have found them for six or seven miles along the coast. They are very abundant." The late Mr. Edward Newman also, in an article on the Natterjack published in the " Zoolo- gist " for June, 1869, writes :• — "In Scotland it has been found abundant on the coasts of the Solway Firth."— W. R. Tate, Blandford. The Natterjack Toad in Cumberland.— I have for several years known of the existence of this toad on the shores of the Solway, at Silloth, a few miles from the locality noticed by your correspondent, Mr. Duckworth. I have from time to time obtained specimens by digging them out of the sand, where they hide during the day. They are found in burrows, sometimes a foot or more deep, opening usually at the top of a "scree" of sand, just beneath the overhanging turf. I have found from one to three toads in each hole. Last June I found that they frequented a pond near the railway station by hundreds. Their croaking, which was intermittent, beginning suddenly and ceasing as abruptly after two or three minutes, could be heard on a still evening more than 500 yards away. This toad, like the common one, has the chameleon-like property of being able to adapt its colour to surrounding circum- stances. Those found in the sand were of a beautiful light grey, almost without any spots. Those found amid the moss and slime of the pond had large blotches of greenish yellow, not at all improving to their appearance. — T. Lattimer. Wood-Pigeons' Nests. — I was much interested a few days ago, in seeing a pair of wood-pigeons that are building a nest in a tree, in a garden a few feet from the backs of houses and a public road, and not many hundred yards from a large railway station and a busy thoroughfare, with tram-cars and omnibuses to the City and West End. Is it not curious that birds, so associated in our minds with peaceful country scenes, should choose a spot so very near the great desert of bricks and mortar? If the poor birds are unmolested and hatch their young, what long distances they must travel to procure food enough for them.—//. Budge. The Whitethroat a Mimic— A curious inci- dent occurred to my observation on Saturday afternoon, 4th May. While walking across a mea- dow I heard, proceeding from the hedge on the far side, a variety of guttural sounds, in which I recog- nised the song of the whitethroat ( Curruca eiiierea), but it was strangely interrupted by the alarm notes of the common swallow, sparrow, green and grey linnets, greater and lesser tits, and possibly a few others which I did not recognise. At first I was convinced that the several species were present. I drove the whitethroat out of the hedge, upon which he pro- ceeded to a neighbouring one, and there resumed his imitations. Being anxious to make sure of this, I lay down near the hedge where I formerly heard him. In a short time he returned to it, and I had a favour- able opportunity of seeing him. I watched him long enough to convince myself that every note proceeded from the same species. This peculiar characteristic of this bird I do not find mentioned in any books on ornithology which I have read. — John D. Osborne, Caniehfergus, Co. An trim. The Botany of the Channel Islands. — In reply to your correspondent'syf;-^ query under above heading. — Living in the Islands is not expensive. To his second : — At a farmhouse, or private lodgings, by all means. If J. Camber will send me his address I shall no doubt be able to give him all the information he requires. — J. Si net, Bagot, Jersey. Aquarium for Microscopic Work. — I use leech vases about eight inches in diameter, which I get from the chemist for three and sixpence each. I think W. D. B. would find two or three such vases better than a larger aquarium. Among several other advantages specimens can be kept separate, and the bottom of the vase reached with the dipping tube. — Richard B. Croft. R. FiCARi/EFORMis. — If some correspondent would kindly give the specific characteristics of this plant in Science-Gossip, it would facilitate search for it in the South of England. — /". H. A. Pairing of Birds. — I deny altogether that we have any proof that fowls have the slightest regard for the best fighting cock, or for the superior beauty of one male over another. Such ideas are totally opposed to science and to truth. — C. R. Bree, M.D. Colias Edusa and its Varieties. — The great abundance of this graceful butterfly during the past season has offered to entomologists more opportunities of studying its nature and habits than they have had for several years. The question naturally arises : — to what cause are we to impute the strange appearance in such numbers of this once-prized insect ? Many are the theories that have been brought forward to account for it, but the solution of this entomological problem seems as far off as ever. Although the investigation of it has been carried on for many years, we have no explanation of this phenomenon that we can receive with any particular amount of credit. The suggestion that the insect we find here has crossed the Channel, tempted by the fineness and heat of an English summer, certainly cannot be put forward as an argument in the case of last year. But to dilate upon, or even to mention, the numerous theories that have been brought forward to account for this would occupy more time and space than I have at my disposal. Another fact may be men- tioned, namely, that the number of males taken was very nearly double that of the females. The differ- ence in the appearance of these is much greater than one at first sight would suppose. The most striking 142 HARDWICKE'S SCIENCE-GOSSIP. distinction is that the male has each of its wings edged with a black border, unbroken except by very fine yellow lines that are a continuation of the veins. In the female this border is broken by greenish- yellow patches, varying in size in different speci- mens. Besides this there is another less striking difference, namely, that at the root of each hind wing in the male there is a light yellow spot, of which there is no trace in the female. In the Science- Gossip for last December one of your correspondents remarks that he noticed in a specimen of this butter- fly that the hind wings were suffused with a rosy purple lustre. If he will carefully examine his speci- mens, he will find this apparent peculiarity is common in a greater or less degree to every specimen of the male insect. Those male butterflies that had very lately emerged from the chrysalis would display it most vividly, while in the female there is not the least trace of it. — C. E. B. Hewitt, Birmingham. Preserving Skins. — Skins of small birds may be preserved by clipping wool in carbolic acid, and stuffing the birds with the same. — J. Y. The Mighty Deep. — In your issue for April, I find a very interesting paper on this subject from Mr. A. Ramsay. Will you permit me to offer to him, and to your readers, a brief remark upon it ? Mr. Ramsay says — "The great bulk of the sea is cencentrated in the Southern hemisphere " — and on the authority of several authors he gives the most probable mean depth at about 2,600 fathoms. In the reports from the Challenger, as published by the Admiralty, Nos. 1, 2, 3, 6, and 7, the mean depth of 446 soundings is about 1,716 fathoms 4 feet 1 inch. I have, put down in the Geographical Magazine for March, page 66, the mean depth of the Northern hemisphere at about 1,907, and of the Southern at 1,642 fathoms ; giving a mean depth all round the world of 1,774 fathoms 3 feet. The two means do not coincide, because I omitted certain coast soundings in the latter calculations. It follows, that the volume, as given by Mr. Ramsay, must be wrong; and though the surface-water area is more extensive in the South, the bulk of water is about the same in both hemispheres. The deepest water in the North is 4,575, in the South 2,900 fathoms ; in the Arctic regions 1,860, in the Antarctic i,Soo. There is water round the North Pole, and land round the South. The equilibrium of the globe seems perfect. The mean depth of the ocean, beyond coast soundings, may be put down at 1,750 fathoms; very nearly two miles. If Mr. A. Ramsay can turn his attention to the Geological Survey report of the Winter Moun- tains, as published at Washington, U.S., he will find some curious facts as to the depth of water in those regions in times long past. — H. P. Maid. The Natterjack Toad. — Can you tell me if it is true that the Natterjack toad (Bnfo calamita) gives forth a most intolerable odour when handled or frightened ? I should be much obliged, too, if you could inform me of any place near London where this reptile may be met with. — y. Perrycap. Our British Snakes. — In answer to a ques- tion put in the February number of the SciENCE- Gossip as to whether our British snakes eat birds or mice, I can state positively that the viper eats both. In 1876 I killed a viper, which I fcund to contain six young willow wrens, feathered, and within a few days of flying. Past year I killed a young one, which contained a large long-tailed field mouse. Can any of your readers give me any information as to how or why the blind -worm carries its young in a case, in its back, and how long this continues ? and do either the viper or ringed snake do the same ? Remarkable Nests. — This year we have noticed three curious instances of a departure from the usual habits of birds in building their nests, which seem worth recording. The song-thrush lines her nest with cow-dung and clay ; and it is usually considered by ornithologists that, as she builds very early in the spring and frequently in exposed situations, the mud lining protects the eggs and the young brood from the fierce March winds. Early in March we found a thrush's nest in our garden, containing four eggs ; but the nest had not a vestige of the usual mud lining. Unfortunately we found the nest destroyed one morn- ing before the bird had time to hatch, so it was impossible to note whether the inclement weather had any effect on the eggs. We have at this moment a blackbird sitting upon six eggs, four of which are her own and the other two those of the song-thrush. When first the nest was found it contained two of each kind, a thrush having laid in the blackbird's nest. Although sparrows will sometimes appropriate swallow's nests to build in, and though several birds will build a new nest on an old foundation, it is, I think, very unusual for one species — the cuckoo, of course, excepted — to make use of a nest built by another species. The third curiosity in nest-building is the nest of a chaffinch, placed in the fork of an elder-bush near our house. Usually the chaffinch assimilates the colour of her nest to the situation in which she places it ; if she builds in a hedge she generally covers it with green moss ; but if she builds, as she often does, on the bare branch of an old apple- tree, she uses the grey lichens, which are usually near at hand, and covers her nest with them so skilfully that though quite open and exposed it becomes hidden by its resemblance to a knob or excrescence of the tree itself. In this case, however, though the bird has recognised the necessity of covering her nest with something, she has rendered it most conspicuous by sticking little bits of white decayed wood all over it. The wood is so white that the nest looks almost like a snowball in the branches. Possibly this bird may be colour-blind, or she maybe just a little bit " want- ing" in her instinctive faculties, as human beings are occasionally in their reasoning powers. Why not ? — Robert Holland, Norton Hill, Runcorn. How long can a Fish live out of Water ? — A friend of mine some days since removed a gold-fish from a glass globe, on account of its having mildew (probably a parasitic growth of Epistylis). It was placed in a basin of water at night on the kitchen dresser. In the morning, at six o'clock, my friend discovered the fish was missing from the basin, and could be nowhere found. At past twelve o'clock at noon the fish was discovered behind some plates under the dresser ; as it moved when handled it was placed in water, when it gradually revived, and is now as lively as ever. This unfortunate fish was certainly above six hours, possibly much more, out of its proper element, and in my experience I have never known one to survive one quarter that time. — Henry Taylor, Peckham. Sparrow-Hawks and Windows.— On hearing a dash against a plate-glass window in an adjoining room, I found a sparrow-hawk lying on its back, stunned, with its wings extended ; taking it carefully up, after holding it in my hands for a minute I placed it on its legs close by a plate of water ; it gradually recovered, tried its legs, and in about ten HARD WI CKES S CIENCE - G O SSI P. m: minutes flew away, cruelty to other birds. - Kindness to -A Subscriber. it, was I fear, Early Appearance of the Swift. — I was agreeably surprised this morning (May ist) by the premature spectacle of a swift (Cypselus apus) hawk- ing over this town. This is the more singular, from the fact that the other summer migrants have been unusually late in their arrival in this neighbourhood. The swallows appeared first on April 19th. I heard the cuckoo for the first time on April 26th, and the nightingale on the 28th.' — IV. R. Tate, Blandford. What is the best Mixture for "Sugar- ing " ?— I have generally used coarse sugar, beer, and rum. Can any of your readers suggest anything more attractive for moths ? Is it ever successful except in autumn ? — Walter IV. Walter, The Gables, Stoke- under- Ha in . How to Destroy Ants.— Can any of your readers inform me of the most successful mode of destroying ants, so great a nuisance to many house- holders?— George Pearce. "Dittany," &c. — Will some botanical expert assist me to the exact name of the species of ' ' Dit- tany" or " Dittander," and " Dictamiuni '? The words frequently occur in the Elizabethan writers ; but as their learned modern editors hold all natural history in contempt, they merely copy from the old dictionaries one after the other. The synonyms are all confused ; as Floris says dittany is garden rue, while Cotgrave gives garden ginger, peppermint, ■&c. ; then Halliwell says, the first is cayenne pepper, and another authority that there is no such thing; and Bentham (Handbook) adds that Dittany is " the Fraxinella of Gardens," and not a British spe- cies, while Dictamiuni is always got over as a bastard sort of Dittany. Also, what species is the Man- drake, so common of mention by our early poets ? Bentham has merely, " Mandragora, an exotic " ; and your notice of the " Rolls MS." says "White Bryony," a name not found in Bentham or Sowerby's " Wild-Flowers." The glossaries, of course, afford no help as to species. The English Dialect Society have long promised us a book of "Plant names," under the most competent editorship, but the long ■delay makes us despair of it in any reasonable time. — Henry F. Bailey. Aquarium Matters. — Your correspondent Ed- ward Step seems to have been lucky in hitting upon a mode of keeping aquaria without difficulty, and I am glad his system gives him satisfaction ; but I think, if his washing-tub arrangement is correct, most of the readers of his letter, with any knowledge •of the subject, will think that he is deluding himself with the idea that he is keeping aquaria, whereas he is only keeping a small ditch ; for, that water can be kept clear and inodorous for any length of time in .a tub in which there are all sorts of aquatic plants, .animals, insects, &c, I much question ; and that such fish as dace, roach, perch, trout, &c. will live many days in such water, my experience makes me deny. The tub, mud, and water arrangement may do very well for Edward Step if he only wants to keep objects for the microscope, but to fill a vessel with mud and water, and to place in it animals, fish, snails, insects, and plants, irrespective of quantity or selection, and let them fight and devour each other until they have •established what he calls the balance of power, is about the queerest way of keeping aquaria I know of. It is r.cting upon such injudicious advice that has made aquaria-keeping so rare in private houses. People have been told that they have only to get a vase or glass tank, fill it with water, put some mud or sand at the bottom, place water, plants, snails, fish, caddis-worms, reptiles, beetles, or any- thing they find in a river, ditch, or pond in it, and they will at once have a thing of beauty and a joy for ever : they do so, and, after weeks of patient waiting, they find they are keeping a mass of slimy decaying plants, dead fish, &c, in water which the wife or housekeeper declares is not only very odorous but very dangerous. If fresh- water aquaria are to be kept to be of any use or pleasure, they must be so upon a judicious selection of situation, plants, and live stock, which live stock are most accustomed to still waters, and if your correspondent had had a little more field and river experience before setting up his tub, he would, perhaps, have discovered that there are plants of the river, pond, ditch, and stream; and fish, mollusks, &c, of the same, each having its own habitat in which it will flourish. — Ben Plant, The Crescent, Leicester. V. Antiopa. — I always thought that the dif- ference between a foreign and a British specimen of the above-named insect was, that the former had a 1 VIC RE'S SCIENCE-GOSSIP. deep-sea fishes and crustaceans also emit a pale phosphorescent light, and, illumined in the darkness, are enabled to prey on each other, a marvellous in- stance of adaptation to natural surroundings. The John Dorey [Zeus faber), like the Angler, is also somewhat of a rarity in captivity, hut the speci- mens exhibited in this Aquarium continue to thrive admirably, feeding on the shoals of live sprats and sand smelts sharing their abode. All the tanks, well stocked with healthy inmates, are in excellent order, testifying conclusively to the efficient care and atten- tion of Mr. Lawler, resident curator and naturalist. The sea-lions {Otaria Stelleri) are again on view, the lioness having completely recovered from her late serious indisposition. Two young female seals {Plwca vitulina) now share the new seal-pond in the con- servatory with the two males of the same species, old inhabitants of the Aquarium. A fine specimen of the curious Japanese Salamander {Triton Sieboldi), measuring nearly 3 feet, has recently been added to the collections. It is thoroughly acclimatized, existing in fresh water at a normal temperature, and feeding principally on raw beef and liver, which it seems to prefer to the species of fresh-water fishes offered alike for its acceptance. It is a sluggish, weak-limbed reptile, covered with a dark-brown skin, the head and throat being thickly dotted with the glands so characteristic of the "warty newts," and the large pores serving to distribute the viscous matter shed over its exterior are distinctly visible. The mouth is remarkably capacious, and the eyes so minute and dull as to be hardly perceptible. Repre- sentatives of the genus were first brought to Europe by Dr. Von Siebold, who discovered them inhabiting a lake on the top of a basaltic mountain in Japan. It is the Sieboldtia gigantea, Bonap., and the Sala- mandra maxima, Schelegel, but is now classed with the Tritons, and bears a close resemblance to the gigantic American newt (Mcnopoma) of the Alleghany mountains, the generic difference consisting chiefly in the permanence of the gill-slits in the one form, and their disappearance in the adult Japanese species. It is also interesting as being nearly allied to the huge fossil salamander (Andrias Scheuchzeri), from the fresh-water Miocene beds of CEningen, in Switzer- land, so famous as the "Homo diluvii testis" of Scheuchzer, who long maintained it to be a fossil man, and therefore an indisputable relic of the Noachian deluge. His views were put forth with such persistence as to be accepted by many naturalists, until the illustrious Clavier finally settled the contro- versy. He obtained permission to remove the matrix, and having previously made a rough sketch of the animal he expected to find, proceeded to lay bare some hidden portions of the specimen, and thus irre- futably proved, in the presence of a group of asto- nished spectators, that the much-vaunted fossil-man was merely a gigantic salamander. A. Crane. THE HABITS, FOOD, AND USES OF THE EARTHWORM.— No. II. By Professor Paley, M.A. 1. TN the first place, they bring up fresh under- -L earth to the roots of the grass : this useful office is done on a much larger scale by moles, which live on worms, and throw up those heaps of well-crumbled mould which are intended to relieve at intervals their tunnels, made a few inches below the sod. We know that farmers, who generally dislike what they regard as superfluous trouble, and rarely possess much scientific information, will pay a mole-catcher con- siderable sums for the destruction of this harmless and even useful creature, which they seem to regard as a kind of rat ! If they would pay a tenth part of the money to send into a meadow a small boy with a small rake, and get the mole-heaps spread over the grass, they would get a third more in their crop of hay. 2. All grazing animals eat a great quantity of earth. They cannot avoid swallowing the worm- casts, and they like to do so. Earth seems comfortable to their insides, and it is certain that they enjoy it. I used to ride a horse which, being regularly fed on hay and corn, and not turned out to grass, pined for a little dirt. Finding out this, I sometimes let him go to a hedge-bank, slackened the rein, and watched him scoop out with his tongue earth enough to fill a pint-pot. This, I think, is the reason why a horse so often stirs up the mud in a pond with his hoof be- fore drinking. Many horses will paw the water even when passing a clear stream, giving their riders the fear that they want to lie down in it. Some races of American Red Indians eat earth. The fact is attested by Humboldt and others. It is said that the Jamaica negroes will do this when other food is deficient or not procurable.* 3. Seeds of trees are dragged by worms into their holes, and there germinate. This is most commonly the case with the seeds of the ash and the sycamore, both of which have their winged appendages set slightly on one side, like the sails of a windmill, or the screw-propeller of a ship, so that they are carried by the wind and fall aslant at some distance from the trees. I have repeatedly drawn both of these seeds out of worm-holes, after they had begun to germinate. The fact is established by the carrying down of seeds, strewed on the surface, by worms kept in a pot. There can be no doubt, therefore, that it is one of the provisions of nature for the propagation of vegetable life. If you examine a worm-cast, you will find that it is composed partly of the earth ejected from the hole, in small clods, slightly coherent (probably from some admixture of the slime), and partly of excrementitious matter. The latter is easily distinguished by its • See '• Races of Mankind," by Robert Brown, vol. i. p. 290. HARD WI CKE'S SCIENCE- G OS SIP. i55 granular and mammillated appearance, somewhat re- sembling mouse-dirt. It does not seem to be thrown out of the hole mixed with the rest of the earth, but it is deposited separately, often in considerable quantity. If you crumble it when dry, you will find it full of vegetable fibre, which has the appearance of undigested moss, or small blades of dried grass, curiously rolled up in rather hard little pellets, which do not easily crumble with the rest of the earthy excreta. It is clear, therefore, that the dirt of the lob -worm is part vegetable, though the greater part of it is simply earth. If the excreta are dissolved in water, the vegetable debris is still more easily col- lected on the top of the muddy sediment. It is not surprising, from the nature of their food, that the richest earth is generally most full of worms. They are scarcely ever found in digging in sand or gravel, and this is the reason why you so rarely meet with mole-hills in sandy or pebbly soil ; viz., because these clever little creatures find out that worms are not lo be had there for their trouble in boring. How the worm ejects these little pellets on the outside it is perhaps impossible to say. The head is always pro- truded first from the hole ; can it be that the pellets, after being discharged, are conveyed to the surface by some special process ? Or does the worm emerge entirely from its hole during the night ? The excreta, however, are never found apart from the worm-cast covering the hole. I enclosed three large worms in a flower-pot of moist earth, covering it so as to prevent their escape, and occasionally sprinkling a little water on the surface. I found, as I had expected, the next morning that a hole had been bored, opening to the surface, and the bits of earth were thrown out, but not a particle of the excreta. I then placed some leaves, with bits of stick and string, on the surface of the pot, in order to see if they would be used as a plug for the hole. I was desirous also to ascertain if the worm came to the surface to feed, or if it in any way disturbed or fed on the leaves, the positions of which and their condition I took note of. I found that the bits of string and the leaves had been all moved, and some of them drawn into the aperture of holes they had opened against the sides of the pot ; also that the leaves were in part nibbled away, if one may use such a term of a creature which has only some power of sucking up or sucking off. It seems certain then that worms swallow both earth (rich earth in pre- ference to poor or sandy earth) and also fibrous vegetable matter. Every effect that the worm leaves visible on the surface seems done at a time when its enemies, the birds, are not abroad. How a blind creature can tell night from day seems surprising ; possibly the warmth of the sun, or the dew at night may serve it for this end. By keeping one or two worms in a flower-pot, I once or twice found one partly exposed. It was ! passing, by peculiar jerks made, with intervals of rest , from one hole into another. From this I suspected that, as in a rabbit-warren, the same creature has several holes communicating with each other under ground. To ascertain this, after keeping the worms fo some time in a flower-pot, I let them escape, and by drying the earth I was able to dissect it so as to expose all the galleries and passages. I found these very numerous, and towards the bottom of the pot containing portions of leaves which had been drawn down for food. Grains of wheat and other seeds had been carried down to the bottom, and it seemed to me that the worms had fed on the tangled roots which these seeds had sent out through the whole thickness of the earth. The excreta in some cases were adhering to the sides of the pot. I think they must have some way of conveying it or pushing it out of their holes, as birds are said to eject the dirt of the young nest- lings. I think, also, that it is got rid of as soon as deposited. For, though worms are very shy of making themselves visible by day, it is common to find worm-casts so moist and fresh that they have evidently just been thrown up. This is the case with mole-heaps ; but I never saw, and I never met with any one who could say that he had seen, the earth actually being thrown up. The mole, like the worm, is evidently very sensitive to the tread of a foot. Both remain quiet when they feel the vibration of the ground. Worms by no means invariably draw into then- holes leaves or bits of sticks, or cover them over with pebbles. The reason of their doing so at all is there- fore the more obscure, since it is not a necessity. Very often the hole is marked only by the little heaps of earthy excreta, and however carefully you remove these, you will find the hole itself is completely stopped. They nibble off the ends first, and then pull the remainder down lower, till little more than the stalk and mid-rib is left. And a little observa- tion will show that the leaves have really been devoured, and have not rotted away in the moist earth. This fact I ascertained to a positive certainty by repeated supplies of diy leaves put into the flower- pot, the whole being clean eaten up except short por- tions of the stalks. It seems then that a very large part of the decaying vegetable matter in gardens is consumed by the numerous lob-worms, for they are greedy eaters, though they seem to do no harm to growing plants, even if they do eat some of the fibrous roots. In this respect the worm resembles the mole and the dung-beetle, which never leave the hole to the upper surface open to the air, as most of the burrow- ing animals do. Nevertheless, it is certain that worms do feed on leaves or bits of stick drawn into their holes. My grass-plot in late autumn quite bristled with the tufts of fallen willow-leaves (the weeping willow), but in a few weeks they had vanished, entirely consumed by i56 HA RD Wl CKE 'S S CIENCE - G OSSIP. the worms, which had drawn them there for food. I laid about a dozen of these dead willow-leaves on the top of my flower-pot, and in a day or two they were all drawn in (always with the stalk uppermost), and so gradually devoured. I put in a fresh supply, and one evening, on gently removing the cover, I detected a worm with its head affixed, or stuck by the slime, to one of the leaves. It did not stir in the least, and seemed perplexed by the stalk of the leaf resting against the side of the pot. But in the morning the clever creature had turned it round, and there was the stalk-end sticking up in the worm hole ! It had turned it completely round, and whereas it had lain like a bar across the hole, it had contrived to pull in the narrow end. All this is evidently done by the creature feeling the position of the leaf. But to turn it when it is the wrong way is a process that resem- bles a kind of low reasoning rather than mere instinct — if, indeed, we have any right to regard the two motives of action as essentially distinct.* Not only leaves were thus drawn in and devoured, but grains of wheat, canary, and rape-seed, sprinkled on the top of the earth in the flower-pot, were gra- dually carried down, and soon entirely disappeared, so that after a few days not a single seed was to be seen. I tried bits of stick, bread-crumbs, scraps of ginger-bread, and biscuit, but they were not much noticed, though the sticks were generally moved. After a few days, the seeds came up, thus affording a pretty conclusive proof that one province or function of the earth-worm is to promote the growth of plants by burying seed which might otherwise perish, or be picked up by birds. In the above purely popular account of the earth- worm, no attempt has been made at a scientific descrip- tion. The anatomy of the earth-worm, and the organs and process of reproduction, which are extremely curious, are very fully explained in an elaborate paper by Sir Everard Home, Bart., in the " Philoso- phical Transactions of the Royal Society" for 1S23, part 1, pp. 140 — 151, illustrated by four plates, xvi. — xix., containing magnifieddiagramsof the various internal parts. f These are, to enumerate them briefly, a head with a distinct mouth, having some serrated apparatus, not very unlike teeth, a brain (cerebral ganglia), spinal cord, artery, with six lateral lobes or cells on each side, containing red blood, perhaps equivalent to a series of hearts, an oesophagus, crop, gizzard, intestinal canal, and anal aperture. The creature is divided through its entire length into com- partments, containing eggs enclosed in membranous * Sir Emerson Tennent, in his "Natural History of Ceylon," p. 90, relates, as a singular instance of the sagacity of an elephant, his turning sideways a log, which he was carrying balanced across his tusks, so as more easily to make his way through the trees. t See also Dr. Nicholson's " Manual of Zoology," p. 2oo> ed. 3, and especially Prof. Huxley's " Manual of the Anatomy of Invertebrated Animals," pp. 219 — 226. bags. Near the middle is a thick swollen ring * of rather darker colour. This is connected with the generative process, and appears to have given rise to the popular opinion that a worm cut in two will ' 'mend itself," or grow into two worms. The roughness which is felt on handling a worm arises from minute bristles which grow out of the rings, and doubtless assist the creature in its movements. The slime exuded is not nearly so tenacious as that of the snail or the slug, but it probably facilitates the progress of the worm through its labyrinthine home, and it ap- pears to impart some solidity both to the walls of the passages and to the substance of the excreta. THE DEVELOPMENT OF SPECIALLY ADAPTIVE APPLIANCES IN PLANTS. THERE is perhaps no branch of scientific know- ledge which has received greater stimulus of late years than that part of physiological botany which Fig. 104. Flower showing stamens in juxtaposition with style in keeled lip a (nat. size). Fig. 105. Flower showing the deeply-cut petals (nat. size). Fig. 106. Flower showing the dropped keel a (nat. size). refers to the colours of flowers and the origin of their forms. The observations of Drs. Darwin and Miiller, of Sir John Lubbock, and others, have supplied material for modern scientific thought to explain the whole scheme of vegetable creation, and attempt is now even being made by some to connect with the development of vegetable life the colour sense of the animal world, including that of man himself. A writer in Cornhill Magazine for May has striven to show that all irregular-shaped flowers, especially those which combine with colour attractive- * In a full-grown worm, a part of the body into which more or fewer of the segments between the twenty-fourth and thirty- sixth inclusively enter, is swollen, of a different colour from the rest, provided with abundant cutaneous glands, and receives the name of cingulum or clitellum. — Huxley, p. 221. HA RD WICKE 'S S CIENCE - G OS SIP. *57 ness, sweet-scentedness, such as the Labiate?, are the most recently evolved, and that with this development have been correlated the colours of insects. Also similarly is it so in the case of coloured fleshy fruits and the development of the colour sense in the higher vertebrates to suit their frugivorous tastes. And it is interesting to remark that these higher stages have been observed to be intensified even in historic times, as in the case of the human race ; for the mere mention of colour itself — that is to say, in any sense of appreciation — is entirely absent from the most ancient literary works which we possess. and also of both colour and the colour sense in the vegetable and the animal world.* A recent observation of my own upon a member of \h&ScrophularineaJ>ilio>iaccits, both in the structure of the flower and habit of growth. — G.N. HARDWICKE'S SCIENCE-GOSSIP. x59 BOTANICAL WORK FOR JULY. SUPPOSE any one absent from England for many years, were to be landed, or placed on our shores about the early part of summer, but to be totally ignorant as to the month of the year, rambling along the lanes and fields, and seeing a profusion of the various though elegant species of Veroniac, he would naturally say, "This must be the month of May ! " So, in like manner, a little later in the season, finding the willow-herbs scattered here and there with a lavish hand— would he not exclaim: "This is July!"? Our subject this month then must be to work up the willow-herbs. We trust we shall make them so simple and plain, that our meaning or descriptions cannot be misunderstood, but make a large addition of new forms to our herbaria of curious and distinct varieties, which have hitherto been passed over : — Section i. Corolla irregular, "wheel-shaped {rotate). In this section we have only one British species, the handsome Rose-bay, Epilobium august/folium, Linn., with its garden variety, E. brachycarpum, Leight. Section 2. Elowers regular, campanulate, or fun n el-shaped. Note. — By carefully observing the characters of the following divisions, it will be easy afterwards to recognize the different species and varieties, without having the least doubt as to thier identity. Division i. Stems terete, stigma \-cleft. 1. Epilobium hirsutum, Linn. Whole plant very- hairy. L. opposite, oblong-lanceolate ; flowers large, showy, rose-purple, often \ in. diameter ; the four lobes of the stigma curled backwards (revolute) ; buds erect. 2. E. paivifiorum, Schreb. (E. molle, Lam., in Fl. des Environs de Paris). A much smaller plant than No. 1. Stigma lobes short, not bent back; L. alternate ; flowers i in. diameter, rose-purple, more or less pubescent. Var. a. E. rivulare, Wahl. Often quite glabrous or smooth ; not unfrequent on the borders of shallow brooks. Var. b. E. intermedium, Merat. Covered with fine silky hairs. L. all alternate. Frequent by stagnant ponds, &c. Yar. c. E. molle, pubescent. L. in threes, verticil- late (whoiied) ; more rare than the above. By the river at Kew. 3. E. vwntanum, Linn. L. quite smooth, except veins, ohXow^-ovate ; buds drooping ; flowers pale purple. Var. a. E. gracile (Fl. des Environs de Paris). A smaller plant, and much branched. L. oblong, on short stalks ; flowers all drooping gracefully. Var. b. E. verticillatum, Thuret. L. small, whorled in the lower part of the stem. Another variety, though probably not a permanent one, with white flowers, is occasionally found in plantations. 4. E. lanceolatitm, Sebast. -Very rare. L. stalked, lanceolate, narrowed to an entire base ; buds droop- ing, ovate. Division 2. Stem with raised lines, or 2 to 4 angles, stigma entire, club-shaped. 5. E. tdragonitm, Linn. Stem with 4 unequal angles ; L. strap-shaped, smooth, stalkless ; buds erect. A much-branched species. Var. a. E. obscurum, Schreb. L. tapering from a rounded base, lanceolate, not shining above. We regard this as a true species, as do most continental authorities. ( Vide Gren and Godron.) 6. E. paluslre, Linn. Stem 1 foot, simple, with 2 lines of hairs, seldom branched. L. mostly opposite, downy on upper surface, smooth beneath, except midrib, lanceolate, with -wedge-shaped base. Flowers small, in leafy clusters. Var. a. E. pubescens, Cuss. Whole plant covered with downy hairs, and densely branched. Var. b. E. ligulatum, Baker. L. toothed ; style simple ; partakes much of the characters of palustre. In this month we must also keep a look-out for the Loosestrife, Lythrum Salicaria, Linn. Being so well known, it is not needful to describe it particularly ; first , let us observe, Hooker, in ' 'S tudent's Flora, "notices two varieties growing by the Thames, at Kew, — a long- styled and short-styled plant. These have recently attracted considerable attention, by observers of the modes of fertilization, and justly so, for, even viewed in this light, they are full of instruction. In the Floras of France, three varieties are enume- rated. Having occasionally detected these, we mention them with confidence, — it may throw a new charm upon an old face to many of our readers. 1. L. alter nifolium. Floral leaves alternate (rare- ment toutes les feuilles alternes — Fl. des Environs de Paris). We have not seen the whole of the leaves alternate; as here described. Flowers pink. 2. L. verticillatum. L. in threes, verticillate, styles long. A smooth plant, slender, with narrow leaves. Flowers bright or pale pink. 3. L. pubescens. Style short, a large coarse plant. Flowers dark dull-purple, very hairy (Plante tres- pubescente, or plant very pubescent). Fl. des Environs de Paris. The Sundews (Drosera) are becoming just now so conspicuous that we may be pardoned by a passing though brief reference to one of the species. Probably Drosera oboz>ata (Mert. et Koch) has hitherto attracted very little attention, from the fact, it is supposed to be a hybrid betwixt D. anglica and D. rotundifolia, but any one knowing the true plant, and observing its habit, style, and capsule carefully, will never so regard it. D. obovata, Mert. and Koch. L. truly oboz'ate, i6o HA RD WI CKE'S S C1ENCE- G OSSIP. broader at the summit than the type, capsule half as long as the sepals. Style notched, \ Fig. 10S. Leaf of Dro'sera Fig. 109. Leaf of Drosera anglica. obovata. We give an engraving of the leaves, natural size, of both the type and variety ; this may help in its identification. F. MICROSCOPY, Diatomaceous Material. — Mr. Clark, the Se- cretary of the San Francisco Microscopical Society, announces to diatomists that the Society is now enabled, by the kindness of the State Geological Survey, to offer return exchanges of the Pacific Coast diatomaceous deposits on receipt of any valuable microscopical material. The Quekett Microscopical Club. — We have received the latest issue of the Journal of this vigorous society, containing a description by Mr. J. G. Waller, of a new British sponge, of the genus Microcionia ; a paper on "The New Autographic Process," by Mr. A. Cottam ; an abstract contribution by M. M. Hartog, B.Sc, on "The Investigation of Floral Development"; and a " Record of the Proceedings of the Meetings of the Club." A Wet Process of Mounting in balsam is well described by Mr. Stokes, in the May number. I have for some years used a similar method, and which for large and whole insect preparations I prefer. It is diffi- cult to set out all parts of an insect, and at once apply balsam without again disarranging your work. I there- fore proceed thus : — The object having been sufficiently soaked in potass to soften it, and washed well in distilled water and freed from dirt, &c, I place it for a minute or two in alcohol, then lay it out on a piece of glass in a little alcohol, cover with another piece, press and tie with cotton, and throw into a bottle of alcohol — the longer it stays here the less likely to alter form, — take it out after a day or two, put into turpentine and again brush ; it may be then mounted after a few minutes' soaking in the turpentine, but I generally prefer to tie it up again and throw it into turpentine for a few days. To mount, lay object on slide on some balsam (liberally), and cover with thin glass, which hold down lightly with clip of some kind; boil, until a portion of the balsam around the cover, taken on the end of a needle, is tolerably stiff. There may be very many bubbles, but if they only arise from vapour of turpentine, and the balsam is not too hard, they will all go out in a few days. The boiling need be for a very short time, and a little practice will make perfect work. It is the simplest method of balsaming I know of, much more easily managed than damar. — An Old Mounter. Canada Balsam in India.— An experience of twenty years enables me to give a satisfactory answer to the inquiry of Ff. F. Blackett as to the heat- resisting power of Canada balsam in India. I have brought back with me many specimens, mounted in that medium, which I took out with me twenty-five years ago, and they are as perfect as ever they were. My experience of mounted slides is as follows, though it may possibly not accord with that of others. Canada balsam stands well, and so (and I was much surprised at the fact) does sealing-wax varnish as a surrounding cement ; though much, no doubt, depends upon the quality of the sealing-wax. The black asphalt cement is apt to run in under the thin glass. I have some specimens surrounded with this material entirely spoilt, while a few have stood well. All chemical preparations are spoiled by the climate. — C. S. P. Parish. Plant-Crystals. — Mr. Hammond's paper, in the June number of Science-Gossip is likely to lead to valuable microscopical work. Now, micro- scopists need no longer be advertising for good materials for the preparation of interesting slides, for they everywhere surround us, in our walks through the green lanes and excursions to the conservatory, and to the shops of the druggists. In the latter may always be had guaiacum bark and quillaja, in both of which the long crystal prisms exist in great abundance and beauty ; while the short prismatic crystals are very plentiful in most of such common plants as the Leguminosce, and in the testa or seed-skin in the Elm, Black Bryony, and Scarlet Pimpernel. All these crystals are admirably fitted for experiments on the polarization of light. The sarsaparilla of the drug- gists affords true raphides ; but these do not polarize light well, nor do the cystoliths or other sphrera- phiclcs. All of them are figured either in Science- Gossir, May, 1875, or in the Monthly Microscopical Journal, December, 1873 ; anc^ ** 1S understood that Professor Lionel Beale will devote two plates to all these interesting crystals in the forthcoming new edition of his great work, entitled "How to Work with the Microscope." — G. R. HARD WICKE'S SCIENCE- GOSSIP. 161 ZOOLOGY. The Hemipterous Fauna of St. Helena.— At a recent meeting of the Zoological Society of London, a communication was read from Dr. F. Bucha- nan White, entitled " Contributions to a Knowledge of the Hemipterous Fauna of St. Helena, and specu- lations on its origin." In the first part of his paper the author, after briefly noticing what was known with regard to the Fauna and Flora of that remote and interesting oceanic island, and mentioning the various theories that had been brought forward to account for their origin, discussed the difficulties of the animals, and argued that they had evidently been derived at a remote period from the Patearctic Region by way of Madeira, the Canaries, and the Cape de Verde Archipelago. In the second part of his com- munication Dr. White described the Hemiptera collected in St. Helena by the late Mr. T. V. Wollas- ton, during the recent visit of that naturalist to the island. The collection included thirty species, of which five were probably introduced ; one appeared to be indigenous, but seemed identical with European species ; and the remaining twenty-four were regarded by the author as new and peculiar to the island. Seven new genera and one new sub-genus were created for the reception of ten of the species, the rest, with one exception, being referred to European genera. Testacella haliotoidea in Jersey. — This slug, though recorded as occurring in the sister isle of Guernsey, seems not to have been reported from this island. On the 21st of April last, about 9 a.m., I observed a specimen crawling at the foot of a dry bank, after rain. It carried a prominent oval lami- nated shell, of an ashy- white colour, about \ an inch in length by \ of an inch in breadth, just in front of the hinder extremity. But it appears that an intel- ligent observer, R. Macdonnell, Esq., by whose kindness I have since seen a second specimen, has noticed it occasionally, for several years, in his garden, about half a mile from the other locality. Whether it is indigenous in Jersey, or imported from France with soil, I must leave to those who, unlike myself, are learned in the history of mollusca. — Martin M. Bull, Jersey. The Cuckoo at Night. — On the 24th of May I heard the note of the cuckoo at 2T5 a.m. The night was very dark, and it was raining heavily, yet the cuckoo was singing as loud and as cheerfully as it would in the daytime. Is it usual for the cuckoo to sing during the night? — A. M. McA., Stoke-on- Trent. Irish Wolf-Dog. — Lord Talbot of Malahide formerly had a clog said to be the Irish Wolf-dog ; he probably can give "L. M." the information he requires. BOTANY. Meyenia erecta. — It must have been obvious to Science-Gossip readers that the name "Mergenia erecta," which headed a paragraph in the June num- ber, page 139, and which had reference to fertiliza- tion adaptability, was a misprint for the above. Acanthacece, to which natural order this plant be- longs, approach Labiate and Verbenacere, Scro- phularineae and Bignoniacece in the irregular anisos- temenous corolla : they differ from the latter two orders in the aestivation of this whorl, and by the absence of albumen. All these groups of irregular- shaped flowers are specially adapted for insect fer- tilization, and, as regards the favoured theory of the origin of species, they doubtless constitute the last link in the developed series of flowering plants. I am inclined to suggest that there is a field open in connection with the investigation and study of the floral structure of these groups, and that special attention devoted in this direction will be attended with fresh interesting discoveries. — George Newlyn. Epilobium ANGUSTIFOLIUM (Rose-bay Willow- herb). In " Flora Lapponica," Linnasus describes the hut of the Laplander encircled with the tall stem-, and elegant blossoms of this species ; he goes on to state they in state emulate the palaces of the gods. The Swedes call it Himmelgnvs, or " herb of heaven." The only true wild form found in England is the E. macrocarpum, Steph., whilst the one often found in cottage-gardens is the E. bracliycarpum of Leighton's " Fl. Shropshire " ; they are quite distinct. — R. Destruction of Rare Plants. — As this sad work is still going on, Mr. E. D. Marquand deserves the thanks of all botanists for his judicious remon- strances, in the June number of Science-Gossip, against the rooting out of the New Forest such interesting species as Spiranthes ccstivalis and Pul- monaria angustifolia. It would be a libel to attribute such wanton destruction to botanists, since it is done by mean dealers. But it unfortunately happens that the destruction is too often encouraged under the pretence of science, especially by sorae of our pro- vincial societies offering rewards for the best col- lections, as if mere collectors had any pretence to be regarded as botanists or zoologists. If the rulers of such societies had any intention of encouraging, by rewards of money or otherwise, the promotion of botanical or zoological science, that might be more easily and effectually done by proposing investigations of the species and intimate structure of common plants and animals. For example, the species of the Wild Roses, Brambles, Willows, Sedges, Grasses, &c. , would afford excellent exercises ; and so would the examination of the intimate structure of the glands, hairs, pollen, and distribution and significance of raphides and other plant-crystals, &c. It is really- 162 HARD WICKE 'S S CIENCE - G O SSIP. aggravating that Mr. Marquand should have been called on to protest now against a crying evil ; especially as it has long since been denounced by Professor Gulliver and others in Nature, May 22, 1873, and in the Nineteenth Report of the East Kent Natural Histoiy Society ; and all this about the same time that Professor Babington and other eminent botanists were protesting strongly but ineffectually in the same cause. — Q. F. A Glass-eating Lichen. — My friend Mr. John- ston-Lavis's lichen seems probably of more interest than the unpainted surface of much old glass. If this lichen — for lichen it very probably is — really has the power of dissolving glass, it is certainly of the very deepest interest. I quite agree with the disco- verer in setting aside the "workman" theory ; but I much regret that the extent to which the figures are magnified is not given, the method of drawing not stated, and the "various re-agents" used to remove the growth not named ; for in Mr. Johnston-Lavis's paper I see no evidence that would make me attribute a solvent power equal to that of hydrofluoric acid, to thislichen, ratherthan believeinthe simpler hypothesis that it is filling up by its growth previously existing holes. I hope my friend will prosecute this inquiry, and produce some more decisive evidence one way or the other. — G. S. Boulger. Old Plant-Names.— In answer to Mr. Henry F. Bailey, I may say that Dittany does not occur in Turner's " Libellus de re Herbaria " (1538). In Ge- rard's " Catalogus " (1596), Dictamnum crceticum and fraxindla are mentioned, and in the second (1599) edition, the former is called ' ' Dittanie of Candie," and both "Fraxinella Bastard Dittanie" and "Fraxinella altera, Great Bastard Dittanie," are recorded. The Dictamnum crceticum is described on p. 651 of Ge- rard's " Herbal" (1597), and is identified by my friend Mr. Benjamin Daydon Jackson, editor of the "Cata- logus" and "Libellus," with Origanum dictamnus of Linnaeus. Fraxinella is described on p. 1065 of the "Herbal," and is, according to the same high authority, Dictamnus albus, L., whilst F. altera is on the same page of the "Herbal," and is Dictamnus fraxinella of Persoon. Dictamnus belongs to the Rue tribe. It is remarkably inflammable, owing to its oil-secreting glands. D. albus is now commonly known as Dittany. Origanum belongs to the Labi- ates, and our Marjoram is a species of this genus. On p. 61 of the " Herbal," and in both editions of the "Catalogus," Gerard also mentions " Pseudo- dictamnum, Bastard Dittanie," which Mr. Jackson makes Ballota pseudo-dictamnus of Bentham. Garden Rue is, and was in Gerard's time, Rula graveolens, though then known as Ruta saliva. I am not at all sure about the Mandrake, but the probabilities seem in favour of a solanaceous plant, rather than the White Bryony, which is the popular name by which Bryonia dioica is distinguished from Tamus communis, the Black Bryony. Tournefort named the genus of Solanacea?, now known as Mandragora, of which the species officinalis is commonly known as the Man- drake, "The insane root which takes the reason prisoner," is often said to be the Dwale, or Deadly Nightshade ( Atropa Belladonna). I may refer Mr. Bailey to the Rev. H. N. Ellacombe's " Plant- lore of Shakespere," an excellent work, which I have not by me at present, and I may perhaps also take this opportunity of calling attention to the exist- ence of a "Turner Printing-Club," for reprinting early works on British botany, under the superin- tendence of Mr. B. D. Jackson, of 30, Stockwell- road, S.W. In Gerard's "Catalogus," and the "Herbal," p. 274, the Brinjal, Aubergine, or Egg- plant of Asia, Solarium Melongena, L., is mentioned as Mala insana, Mad or Raging Apples. I take this opportunity of publishing, for the justification of our early authors, their meaning in the various Maiden- hairs. The true Maidenhair is Adiantum capillus- veneris. Possibly the foliage of Thalictrum minus, the Lesser Meadow Rue, was sometimes mistaken for it. The common or English Maidenhair is As- plenium Trichomanes ; the Black Maidenhair is A spl<- nium Adiantum-nigrum ; the White Maidenhair is Asplenium Rula-muraria, the Wall-rue Fern ; and the Golden Maidenhair is the moss Mnium kygrome- tricum, also called Little Goldilocks. The Goldilocks is Ranunculus aurlcomus. — G. S. Boulger. Bible Plants. — An interesting little volume with this title, by John Smith, ex-curator of the Royal Botanic Gardens, Kew, has just been published by Hardwicke & Bogue. One plant, however {Lycium EuropcBiim), appears to me calculated to mislead ; it is described (page 207) as "a rambling, prickly shrub, well "known in this country as Boxthorn or Tea-tree, and often used for covering garden-seats, arbours, and the like, and is a hedge-plant in Palestine." At plate 9 is a figure of the plant, marked C, which is no doubt correct as it is found in Palestine, but bears no resemblance to the tea-plant so well known in England. Mr. Baker, curator of the Royal Herbarium at Kew, says, "it is Lycium Barbarum not Europttum that is commonly cultivated, but they are very near to one another, and the genus is in a great muddle and wants re-monographing." He says, "The Lycium of Syria is L. vidgare of Lin- nceus, L. Mediterraneum of Dunal, and copiously spiny when wild, but loses its thorns when under cultivation." The Lycium Mediterraneum, Dunal, D.C. Prod. ; Lycium Furopeum, Linnaeus, Mant. 47 ; Desf. Atl-kock syn., is described in the "Flore de France," by Grenier et Godron, as with leaves a little fleshy, oblongues-obovees, insensibly attenuate in a short petiole, common on the whole littoral of the Mediterranean. No one looking at the figure at plate 9 could suppose it represented the tea-shrub, so HARD WICKE'S SCIENCE - GOSSIP. 16 well known in England. The plant is stated in the " Treasury of Botany " as being known as " the Duke of Argyle's tea-tree," the leaves being recommended for use in the place of tea, a piece of advice not generally acted upon it would seem. The leaves appear in the figure so extremely diminutive that they never could have been used as a substitute for tea. There appears, therefore, to be some confusion ; the plant in the figure should have been referred to as the Lycium Europceum of Palestine, but altogether unlike the tea-tree, sometimes found in a semi-wild state in England, where it is so well known as the tea-tree. Mr. Baker says he has not seen the Bible plant, and of course he can give no opinion as to the figure in plate 9. — T.B. IF., Brighton. Definite and Indefinite Inflorescence. — Sir J. E. Smith thought the distinction of not much importance, on account of the difference found among the species of Allium in the order of expansion of their flowers. Nor did Professor Lindley seem to recognize the distinction as of primary importance, for in this little work on Descriptive Botany, the spike, the raceme, and the corymb are represented by figures each terminated by a central flower. Such a central flower may indeed be found in the spike of Agrimony, the corymb of the Pear, the umbel of the Apple, and the panicle of London Pride. After noticing such facts, one may be pardoned for enter- taining a doubt as to the existence of any form of inflorescence strictly indefinite, i.e., incapable of pro- ducing a terminal flower on the axis of inflorescence, or a lateral bud below the flower upon its pedicle. Such a mode of inflorescence does, however, seem to be in the orders Crucijine and Primnlacea, and it may be in other natural orders, only subject to such exceptions as belong to the province of teratology. For nearly twenty years I watched the inflorescence of cruciferous plants before finding an indisputable case of a flower-stalk with a flower on the summit and another below it on the side. This was on one of the ramifications of a much-branched stem of a perennial stock which flowered last year, and of which a note appeared in Science-Gossip of July, 1877. This year a similar phenomenon has appeared on another plant of the same kind. Foliar prolifi- cation of the inflorescence is, however, much more common, though I have observed it only in perennial plants, not in annuals or biennials. The stem of the watercress will sometimes grow beyond the series of flowers on its sides, producing leaves above the raceme as freely as below it. Cardamine pratense may be occasionally found with a tuft of leaves on the top of a flowering stem, and I have now in bloom in my garden a stem of a wallflower which bore flowers, produced pods, and ripened seeds last year. Between the two series of flowers came a tuft of leaves, and this year there is a branch above the mortal remains of last year's pods, which, as well as the main stem, has blooming flowers. If the stem be not exhausted too much to ripen seed, I will allow it to do so, that I may see if such a variation is hereditary. It thus appears that in cruciferous plants median prolifica- lion of the inflorescence is always foliar, median prolification of the flowers floral. — John Gibbs. Orchis-hunting in Surrey.— Surrey is to me associated with many delightful rambles, and none of them more so than those I have deno- minated "Orchis-hunting." Living at that time close upon the North Downs, I was able to make acquaintance with some of the chalk-loving species of theJDrchidacere seldom met with now, especially as I am at present located amongst the Red Sandstone of Devonshire. My "happy hunting-grounds" at that time consisted of the parish of Ockham as a centre, from which I made pedestrian excursions into the surrounding neighbourhood. Most of the species I find referred to in my notes were found within some five or six miles of what was then Ockham Middle- Class Schools. In the moist meadows around, and up what everybody knew as the "Rides," were found very plentifully, 0. masatla, O. maculata, O. latifolia, ATeoltia Nidus-avis, and the Listera ovata. (The Adder s Tongue Fern was very plentiful in a meadow by the side of the Rides.) In a meadow near a pond called the " Sheepwash," I came upon the Habenaria bifolia, and on several occasions 0. niorio. It was, however, by walking some few miles and getting upon some of the chalk ridges that I made acquaintance with some of the more strange-looking species. In the adjoining parish of East Horsley was a hilly piece of ground known as the "Sheep Leas," as far as I can remember the name. I am not sure of the ortho- graphy of the word, — I give the name as it sounded to me. This was a favourite place for a holiday of the pic-nic order, and our people often resorted to it in clays of yore. Many a pleasant day's botanizing I have done there. It was there I made aqcuaintance with the Aceras anthropophora and the Ophrys nntcifera. The Ophrys apifera I found here most plenti- fully distributed, in fact, almost carpeting the ground. This odd-looking Orchis I also found in great abun- dance in a " rough field " near the Fox, on Ranmoor Common. I also remember a few being found in Ockham Park one season. As to the 0. mucifera I think it was under the beech-trees on the Sheep Lea> that I found it. In the same neighbourhood I found the Ophrys aranifera, and the Orchis hircina. I think it was in the Sheepwash meadow already men- tioned that I also found the Orchis' conopsca. — y. Mills Higgins. Colias Edusa. — Can any of your readers of Science-Gossip give me a reason for calling the clouded yellow butterfly " Colias Edusa "? " Colias " meaning a kind of tunny-fish, and "Edusa" the goddess who presides over the nourishment of child- ren. — Ha z 'ila nd. 164 HARDWICKE'S SCIENCE -GOSSIP. GEOLOGY, The Glacial Phenomena of the Long Island, or Outer Hebrides. — A paper on this subject has recently been read before the Geological Society by James Geikie, LL.D. The author gave a detailed account of the glacial phenomena of Harris •and the other islands that form the southern portion of the Outer Hebrides. Evidence was adduced to show that Lewis has been glaciated from S.E. to N.W., and the shelly boulder-clays and interglacial shell-beds of that part of the Long Island were de- scribed in detail. Harris, North Uist, Benbecula, South Uist, Barra, and the other islands that go to form the chain of the Long Island were successively described under the headings of Physical Features, Geological Structure, Glaciation, Till or Boulder-clay, Erratics and perched blocks, Morainic debris and Moraines, Freshwater Lakes and Sea-lochs. Numerous bearings of stride, which abound, were given, and these were held to prove that the whole Outer Hebrides have been glaciated by ice that flowed out- wards from the mainland of Scotland. The position of abundant ?-oc/ies moutonnees points to the same con- clusion, and this is still further supported by the "travel" of the Till. That deposit is generally absent or very sparingly present on the rock-faces that look towards the mainland, but it is heaped up in their rear, and spreads over the lower tracts that slope gently towards the Atlantic. On the west side of the islands not a few boulders occur in the Till, which have been derived from the east ; and the same is true of certain erratics lying loose at the surface of the ground. The islands are well glaciated up to a height of 1,600 feet above the sea ; and the line of demarcation between the glaciated and non-glaciated areas is extremely pronounced. Above 1,600 feet the hills show rugged, splintered, jagged, and sometimes serrated tops. The author regarded the Till or boulder-clay as the morainic material that gathered underneath the ice, and proof of this is given. Erratics and perched blocks are very numerous, and most of these, as well as much of the morainic debris, are believed to have been dropped where we now find them during the final melting of the ice-sheet. It was shown, however, that certain erratics and perched blocks and some well-marked moraines are due to local glaciers, as are also some of the striations in a few of the mountain valleys. The origin of the rock- basins, which are now lakes, was discussed, and attributed to the erosive action of ice. To the same cause were assigned the rock-basins which occur in certain of the sea-lochs. In concluding, the author pointed out that we may now arrive at a true estimate of the thickness attained by the ice-sheet in the north- west of Scotland. If a line be drawn from the upper limits of the glaciations in Ross-shire (3,000 feet) to a height of i,6co feet in the Long Island, we have an incline of only 1 in 210 for the upper surface of the ice-sheet ; and of course we are able to say what thickness the ice reached in the Minch. Between the mainland and the Outer Hebrides it was as much as 3,800 feet. No boulders derived from Skye or the mainland occur in the Till of the Outer Hebrides, and this was explained by the deflection of the lower portion of the ice-sheet against the steep wall of rock that faces the Minch. The underpart of the ice that flowed across the Minch would be deflected to right and left against the inner margin of the Long Island ; and the deep rock-basins that exist all along that margin are believed to have been scooped out by the grinding action of the deflected ice. Towards the north of Lewis, where the land shelves off gently into the sea, the under strata of the ice-sheet were enabled to creep up and over the district of Ness, and thus gave rise to the lower shelly boulder-clay of that neighbourhood, which contains boulders derived from the mainland. The presence of the overlying inter- glacial shell-beds proves a subsequent melting of the ice-sheet, and a depression of the land for at least 200 feet. The overlying shelly boulder-clay shows that the ice-sheet returned and overflowed Lewis, scooping out the older drift-beds and commingling them with its bottom moraine. The absence of kames was commented upon, and shown to be in- explicable on the assumption that such deposits are of marine origin ; whilst if they be of torrential origin their absence is only what might be expected from the physical features of the islands. The only traces of post-glacial submergence are met with at merely a few feet above present high-water mark. The Fossil Fungus. — Too much credit cannot be given to Mr. Butterworth for his labours on fossil plants, carried on for so many years under great diffi- culties but with great perseverance, and with most important results. Prof. Williamson has again and again expressed his obligations to Mr. Butterworth ; and the collections of the British Museum have several valuable specimens prepared by Mr. Butterworth's own hands, the importance of which I have testified to on several occasions. No doubt Mr. Butterworth observed the fossil fungus in his specimens before they were sent to London, although Mr. Smith and myself were ignorant of it. But the fungus had al- ready been observed by myself, and shortly described from specimens in the British Museum prepared by Mr. Norman, and the interest of Mr. Butterworth's specimens to me, when they were shown me by Mr. Young, was that they confirmed the specimens I already possessed, and added to my knowledge of the fungus. The two Pahrozoic fungi which Mr. Butterworth refers to could not include the Neozoic parasite in the fern-stem from Heme Bay, as he sup- poses. These two Palaeozoic fungi were — 1. The curious mycelium masses found at Newcastle by Mr. Atthey, and described and figured in his "Annals and Magazine of Natural History"; and 2. The HARD WICKE >S S CIENCE -GOSS IP. 165 parasite fungus in the stem of a Lepidodendron de- scribed by myself without a name, and afterwards, by the help of Mr. Butterworth's specimens, de- scribed at greater length by Mr. Smith. — William Carruthcrs. The Tkrtiary Flora of America. — Thanks to Dr. Hayden, we have received the seventh volume of the Report of the United States Geological Survey, containing Prof. Lesquereux's "Contributions to the Fossil Flora of the Western Territories," Part II. "The Tertiary Flora." It is a large and handsome quarto volume of nearly 400 pages, and contains 65 magnificently-lithographed plates. In every- thing, type, lithography, quality of paper, and even binding, these publications shoot far ahead of our own " Memoirs of the Geological Survey," whose small type seems intended to deter people from reading them — a plan which is considerably aided by the extravagantly high prices charged for them I Our geologists are not particularly fortunate in the possession of large salaries, and the high price charged for their memoirs almost places them be- yond the reach of ordinary readers, and thus con- demns the labours of some of our ablest scientific men to an undeserved obscurity. Moreover, the niggardly way in which the publications of our own survey are doled out to the authors, and the plan adopted of sending none out for review, must be a mode of treatment keenly felt by the authors, who at least ought to be publicly credited with the scientific value that would be attached by all geologists to their work. In this respect the United States Go- vernment is the very opposite of our own. Their splendidly got-up volumes are sent over to the scien- tific journals of Europe without stint, and so the American States geologists obtain a recognition which the unaccountable stinginess of the British Government denies to ours. Prof. Lesquereux's volume is the best we have seen of the series, and it will surely take its place as a most valuable contri- bution to Fossil Botany. Ancient Vegetation. — The notice on this sub- ject in last month's " Gossip " on American Silurian plants is not quite correct, as plants have been known long since in the " Glengariff " or " Dingle beds " of Ireland. These rocks were taken by Jukes out of the Silurians, and put provisionally in the "Old Red Sandstone," on account of the plants found in them. The "Dingle beds," however, pass downward into typical Silurians, while they are capped uncon- formably by the " Old Red Sandstone."— G. H. K. NOTES AND QUERIES, Starlings and Sparrows' Eggs. — Having occasion to enter the roof of our house, I came across the nest of a house-sparrow, and on looking into it found that it contained three young ones just hatched, one egg that was rotten, and to my great surprise a starling's egg. This making me rather curious, I pro- longed my search, and about three yards from the nest occupied by the sparrows I discovered a starling's nest containing five or six fully-fledged young ones. I must not forget to state that the starling's egg found in the sparrow's nest had apparently only been sat upon but a few days. Will any of your readers kindly state if such an occurrence is rare ? — C. If. Sharp. The Grey "Lag." — Can anyone give the mean- ing of the word "Lag," as applied to the goose? The proper grey wild-goose, as recognized by natu- ralists, is popularly called the "grey lag," and the universal summons to a flock of geese, in part of Gloucestershire, is — "Come lag, Come lag, Come lag." Now, whence "Lag"?— G. L. Visits of the Cuckoo. — Does the Cuckoo, like the Swallow, revisit the same place yearly? I feel interested to know, for this reason. Last year I noticed many times one of the same colour as the Kestrel, quite red ; unfortunately I was not able to secure it for my collection of birds. This year again I have also seen the same bird or one very much like it, and from this circumstance I am inclined to think that the bird does return to the same place ; but whether I am right or not I cannot say. At the same time, will you be good enough to describe for me the Cuckoo's egg. I have the Rev. F. O. Morris's " British Birds," but the Cuckoo's egg is not described there, I mean the colour of it. I procured a little while back a very peculiar skylark, of a fine cinna- mon colour. I have it stuffed in my collection. — \Vm. Bennett. The Swift's Appearance. — The fact of the Swift appearing on May 1st is not a very unusual occurrence. I live to the north of your correspondent, I should therefore see it a little later ; yet I find, on referring to my notes, that I saw numbers on April 30. Stragglers put in an appearance about the 28th, which is about the average date for this city. — J. B. P., Herefoid. Varieties of Camberwell Beauty. — In reply to Mr. Morse's inquiry, I can most certainly say that he is misinformed. I have seen numbers of specimens of European V. Anliofa, and several British ones ; there is a distinct difference in the shade of the border : in the former it is pale yellow, in the latter a pearly white or pale cream-colour. American examples vary again ; the ground is the same or a little deeper, but more dappled with black specks than the Euro- pean specimens ; they are also much larger. I have one that measures rather more that 3§ inches. — 7- B. P. How to Destroy Ants. — In reply to Mr. George Pearce's question, as regards the most successful mode of destroying ants, he will find Keating's insect powder good, as it will at once kill them, and if scattered about the rooms and furniture infested by them, will effectually drive the ants away. — E. Edwards. Colours of Dried Primroses.— Can any of your readers kindly inform me how it is that the beautiful colour of the Primula vulgaris and clatior should, when destroyed, change to a bright green, leaving only the centre of the corolla (and that a small portion), together with the stamens, the original primrose-colour? The leaves turn brown. Is theie any method of preserving this lovely flower, so as to retain the primrose colour of the petals ? — E. Edwards. 66 HARD Wl CKE'S SCIENCE - G OS SI P. Dittany. — There is a foreign species of Marjoram called " the Dittany of Crete," much used in medi- cine, and known as Origanum Dictamtius, genus Labiate?, and the "Bastard Dittany," Dicta minis Fraxinella, one of a small order of Rutacea found in Southern Europe and Asia Minor, and also the Cunila mariana, called Dittany, likewise belonging to the genus of Labiates. This is all I am able to find in my botanical books concerning Dittany, and I have much pleasure in forwarding it. — Helen Watney. Mandrake. — Mandragora is the name applied to a genus of Solanacece or Atropaceee, natives of South- ern Europe and the East. Mandrakes have poison- ous properties, and are somewhat like in their effects to belladonna. The roots of the Bryony are often trained round a mould, and then sold as Mandrakes. Linnaeus considered the red-berried Bryony a variety of the Bryonia alba, or White Bryony, which is a Central European species possessing like properties to the English species. --Helen Watney. Robins' Eggs. — I found myself some years ago a robin's nest, containing five white eggs, of a larger size than any eggs of a robin that I have ever seen, more the size of a cuckoo's egg. The other day I was asked to name an egg, which from the nest I had no hesitation in setting down as a robin's, too ; this nest also had contained five eggs. As both these nests contained the full complement of eggs, all of the same size and colour, they must have been an abnor- mal production from the birds. If there had been a single egg, I should have concluded it to be a while cuckoo's. Is this an unusual variety ? I have, you see, come across two such instances myself; others may have done the same. — C. A. Haden. The House-Martin and House-Sparrow.— At the commencement of the past week two martins began to build under the eaves of my house. Being a great admirer of them I was pleased, and hoped nothing would hinder the completion of the nest. It was not long, however, before I noticed two sparrows taking more interest than I liked, and after five or six days, when the nest wanted but little to finish it, they drove away the rightful owners, and took possession. I could not remain neutral ; so with small pebbles I tried at intervals for two hours to drive away the sparrows. This proved effective only for the moment ; so I thought of another expedient. Taking my trout-rod, I tied a piece of string to the end and placed it within a foot of the nest. I never saw more of the sparrows, but in less than an hour the martins recognized the altered state of things, and soon completed the nest. — H. G., Horbling Lodge. Birds Singing at Midnight. — In Science- Gossip for April i of this year there is an account of "Birds Singing at Midnight," by Mr. R. Standen. Goosnargh, "Lancashire, in which he states that he heard the various songsters on the night of Saturday, 15th February. As I am rather anxious to fix the exact date of the occurrence, I should be greatly obliged by your informing me whether Friday, the 15th February, or Saturday, the 16th, is meant ; either the day or date being evidently a misprint.— X. Position of the Basque Flower. — Mr. Barrett asks in the June number of SCIENCE-GOSSIP whether the finding of Anemone Pulsatilla at a certain eleva- tion "is a universal fact, or only a partial one"? from my own experience I should say the latter. I have found it in both situations ; but if I remember rightly, in greater abundance in some of the chalk ridges of the North Downs than in the lower-lying country around. I have found it growing in the corner of a hay meadow, the land being quite flat, in the parish of Ockham, .Surrey, in close proximity to some woodlands. I have also found it growing some two or three miles off, in the adjoining parish of East Horsley, on a piece of rising ground, or hilly pasture, and called the "Sheep Leas." — J. Mills Higgins. Soi.anum Dulcamara. — In reference to the notes lately given about this plant, I forward the fol- lowing facts. In 1869 one of my pupils partook rather freely of the berries while he was searching one evening for "haws." On reaching home he became sick, and for several hours he was in a wild and violent delirium, requiring to be forcibly held down. This happened, too, after the stomach had been emptied of its contents, the poison having had time to extend itself into the system. The physician who attended him at his house told me that the pupils of the eyes were much dilated, and the symptoms closely resembled those resulting from taking the berries of Atropa Belladoima ; in fact, he concluded that these were the berries the boy had eaten. Ice in large quantities was applied to the head, and the patient soon recovered. I copy this from notes which I made at the time. It could not be ascertained how man)* berries had been eaten. — Henry Ulyett, Folke~ stone. Queries as to Flowers. — To what flowers do the following lines allude ? " One blossom, 'mid its leafy shade, The virgin's purity portrayed ; And one, with cup all crimson dyed, Spoke of a Saviour crucified." Holy Flowers, M. Howitt. " So have I seen some tender flower, Priz'd above all the vernal bower, Shelter'd beneath the coolest shade, Embosom'd in the greenest glade, So frail a gem, it scarce may bear The playful touch of evening air ; When hardier giown, we love it less, And trust it from our sight, not needing our caress." Kedle. C. F. IV. Hop-gardens. — I am living in the midst of hop- gardens. Can any of your readers kindly tell me if there are any curiosities of vegetable or insect life to be gathered during the season ? — A. C. Smith, Crowbo7'o\ Lob-worms. — In reference to this subject by Professor Paley, in Science-gossip for last month, permit me to say that the materials found at the entrance of their holes had adhered accidentally to their slime, and were rubbed off on entering. Leaves with stalks forward they do not carry, with the thin end forward they do, and frequently pass into the hole. Lob-worms clear away the things they have brought home, because it is not convenient for them to adhere again when they go out on visits of ceremony. In clean-swept lawns these encumbrances are not met with, and the entrance to the holes is not obstructed. Crass and leaves may be eaten by these worms, but I do not think they are taken to the hole, and then left at the entrance for breakfast. Fifty years ago and more I used to handle these creatures as Isaac Walton did— tenderly.— //. P. M. Blackbirds' Nest. — A pair of blackbirds have built a nest just six" feet from the ground in a honey- suckle climbing up a verandah outside our drawing- room window, and close to a door which is in constant use for going in and out of the garden. They have now hatched their young ones in spite of all the dis- turbance arising from curious eyes watching them, HARDWICKE'S SCIENCE-GOSSIP. 167 and from three little terriers constantly playing and barking immediately under the nest. — M. T. Palmer. Batrachospermum, &c. — I cannot say whether I shall be giving any or new interesting information when I inform your readers that recently the Misses Willis brought some fine examples of the lovely fresh- water alga, Batrochospermum monilifornu from the stream at Ewell. And that Mr. Morse, of the original Epsom nurseries, discovered in the same parish, a habitat for Cystopterts fragilis. — John E. Daniels, Epsom. Malformation in a Sheep. — I saw lately in London a handsome well-grown wether sheep two years old, with five legs, the extra one being apparently anchylozed to the right scapula. The shank-bone was full-sized, but instead of one set of the other feet bones there were two, the four hoofs being prolonged into claws. I have often met with monstrosities, but not often so full-grown. — A. Bell. Double Lilac— In a garden at Southend I have observed a lilac-tree covered with double flowers. The owner told me that five or six years ago this peculiarity was first remarked on one or two branches only. The quantity gradually increased, and now the whole tree is nearly covered with double blossoms. There are other lilac-trees in the garden which have never shown any disposition to become double. Is this an uncommon circumstance ? I have never met with it before. — E. Fisher. Superstitious Dislike to the Wren. — In February's Science-Gossip, Mr. H. Allingham, in an interesting note, speaks of the bitter dislike which the country folk in some districts entertain to the Wren. I have occasionally met with instances of this superstition myself, but have always been unable to trace the reason for such an aversion. Mr. Allingham says the Wren has been designated the "devil's bird." Has he heard the old couplet which says — "The robin and the wren Are God's cock and hen ? " Apropos of this bird, I may mention that on Satur- day, the 1 2th January, a newly-built wren's nest, containing five eggs, was discovered at Galley Hill, near Gravesend. — G. O. Howell, Shooter's Hill. Double-blossomed Horse-chestnut. — In the New London-road, Chelmsford, during May, a horse- chestnut tree in the garden belonging to Weston Villa was in full bloom. The flowers were apparently all the subjects of multiplication, for in a panicle, which I took the liberty to pluck, I found twenty-four petals, and twenty stamens in one flower, and from the general appearance of the flowers on the tree they seemed more or less like it. The tree is well-grown and vigorous, equalling in height the villa near which it stands ; but is by no means old, so that it may be a study for botanists during many years to come. — John Gibbs. Ranunculus repens. — In Cheshire the curious or strange name of DeviPs-claw is applied to this species, but in "Flora Vectensis" it is stated the term is used to an allied species, the R. arvensis. The Natterjack Toad (p. 142).— This reptile emits a rather strong sulphurous scent when frightened ; but only extremely fastidious persons could consider it "a most intolerable odour." The locality nearest to London in which I have found the animal is Barnes Common, where it was very abundant seven or eight years ago. It is also to be. found on Coombe Warren, between Wimbledon Common and Kingston.— IV. R. Tale, Blandford, Dorset. Cheap Aquaria.— For the benefit of "W. D. B.," who asks for a way of constructing a cheap aquarium, I will describe the primitive one I have in use. It is simply a "carboy," such as can be procured at any chemical works for a small amount of money. To convert it into an aquarium lay a ring about ten ] inches in diameter on top of it for a guide, and run a glazier's diamond around, then use a hot wire, and you have a clean cut edge, which you can set off a little by binding with tinfoil or something of a similar ■ nature. _ I don't know the exact capacity of mine, but believe it approximates something near fifteen gallons. For keeping in stock objects for the micro- scope, such as entomostraca, infusoria, &c, I prefer a small globe holding not more than two or three pints.— H. F. Atwood, Chieago, U.S. NOTICES TO CORRESPONDENTS, To Correspondents and Exchangers. — As we now publish Science-Gossip a week earlier than heretofore, we cannot possibly insert in the following number any communi- cations which reach us later than the oth of the previous month. V. G.— The insect, of which you sent us a sketch, is Lioellula deprcssa. E. E. Evans (Brimscombe).— Hewitson, in his " Eggs of British Birds," gives no markings on the eggs of the Martin (Hirundo urbica). They are nearly white, with a slight plum- coloured tint at the smaller end. T. Spencer Smithson.— Your letter inquiring the name of a diatom did not contain any specimens when it reached us. R. J. S.— The plants are not "Rushes," but " Cotton- sedges " or "Cotton-grasses" {Eriophorum potystachynnr) common in all marshes. Its economical employment has been frequently attempted, but hitherto, we believe, without suc- cess. W. C. Penny (Frome). — The figure of Nynrphon gracile, m the last number of Science-Gossip, is ten times the size of the animal. You will find an account of it in Taylor's "Half- Hours at the Sea-side," from which the above-mentioned illus- tration was taken. Warrawarra (St. Vincents, W.I.). — The specimen en- closed was a species of Mistletoe {Viscum). Could you send a larger specimen ? C. T. M. (Plymouth).— The ferns were respectively, Uliairtnm trapcziforme and Pteris tremula. S. K. A. (Stafford). — Your specimens are — No. i. Weasel- snout {Galeobdolon Interim, L.). No. 2. Wood Sanicle (Sani- crtla curopczd). C. S. (Sevenoaks).— Many thanks for the specimens of orchids. R. R. (Earlstown, N.B.).— The fern No. 1, is very rare (Asplenium lanceolatum). No. 2, the Common Male-fern {Las- trea Filix-mas). No. 3, Lastrea dilatata. G. Clinch.— Many thanks for your excellently-mounted specimen of fossil wood. L. L. — Get the " Collector's Handy-book of Algse. Diatoms, Desmids, Fungi, Lichens, and Mosses," translated and edited by the Rev. W. XV. Spicer, and published by Messrs. Hardwicke & Bogue, 192, Piccadilly, at 2s. 6d. Prof. Tempere. — The plant you enclosed was Brassier monensis. It is confined in its distribution to the western and south-eastern coasts. E. W. Andrews. — Your specimen is Ranunculus divergens, Schulz, though a much smaller one than we have seen before. G. S. Mitchell.— Yes ; the place of birth does not affect the children. R. Bolton. — The following are well known elementary books on geology: — Taylor's " Geological Stories" ; "Geology," by J. Clifton Ward, F.G.S. ; Jukes' "Geology," new edition, by Jukes-Brown : Skertchley's " Geology," and Tate's " Geology," published by Lockwood & Co. N. O. (Brompton). — Your insects are — No. 1, R. crattrgata ; 2, Y. ruberaiit ; 3, M. hastata ; 4, T. balis ; and 5, X, camelin 7. EXCHANGES. Aceras anthropophora, Gagea Irrtea, Silene coniccr, Scirpus pungens, &c. , for Orchis incamata, Scirpus triqrteter, Pynts communis, Potentilla rnpestris. Carcx tomortosa, Lychnis alpina, dr*c. — G. C. Druce, Northampton. i68 HARD WICKE'S SCIENCE- GOSSIP. Having about two dozen duplicates, well mounted, I shall be glad to exchange them. For list, &c, write to F. M. Swallow, Charing Cross Hospital, London. Wanted, good gathering of Plcurosigma angulation, for Diatoms, slides, material, or cash. — Eug. Mauler, Travers, Switzerland. Diatoms. — Material from Santa Monica, containing, among other good forms, Aulacodiscus pulchcr, Actiuoptychus Griin- dlii, &c. &c. Also material from islands of Fur, Trinacria, &c, very fine. Guanos and recent material required. Send list. — W. M. Paterson, Westfield-terrace, Loftus. Can offer sets of many rare and valuable British Eggs, side- blown, for others equally rare and valuable. — All letters answered. — T. \V. Dealy, 140, Clarence-street, Sheffield. Fossils from the Red Crag, to exchange for those of the Barton Series, or from the Gault. — Rev. H. B. Capel, Great Easton Rectory, Dunmow, Essex. " Cultivated Vegetables," by Philips, handsomely bound in calf, 2 vols., 1822, ten inches by six. Also " Pomarium Brittanicum," by same author, in 1 vol., same binding, &c, in exchange for back vols, of Science-Gossip, Monthly Ento- mologist, or Ray Society's publications ; value 20s. — G. N. Minnitt, 5, Regent-street, Nottingham. Nitella translucens, showing circulation, in exchange for well-mounted Slide. — J. B., 36, Windsor-terrace, Glasgow. Send well-mounted Slide in exchange for an Anatomical specimen (mounted). — E. Atkins, 200, Essex-road, Islington, London. Wanted (about one dozen each) Fresh Specimens of 513 and 875 (7th edition); also Ecbolium. Exchange rare plants, &c. — Higginson, Newferry, Birkenhead. A few well-mounted Slides to exchange. Lists to Tho. Shipton, Chesterfield. An Album of eighty Micro-photographs of nearly 200 of the Diatomaces, magnified 250 to 4000 diameters, in exchange for first-class J-inch Objective, or first-class Micro Slides (ap- proval).—Address, Dr. Redmayne, Bolton, Lancashire. Wanted, foreign Land and Fresh-water or Marine Shells, also British Birds' Eggs, in exchange for British Land and Fresh-water Shells, and foreign Land and Marine. Dupli- cates of about 100 varieties of each. — W. Sutton, Upper Clare- mont, Newcastle-on-Tyne. Well-mounted Physiological specimens in exchange for unmounted material of interest. — George Baker, 37, Cross- street, N. For sEcidium tussilaginis send stamped directed envelope, and object of interest, to Charles F. W. T. Williams, King- meade, Woolcott Park, Redland, Bristol. Orchis Simia, Lam., for either 37, 106, 459, 511, 546, 949, 955, 1222, 1223, 1279, 1286, 1329, 1410, 1669, or 1678, 7th edition Lon. Cat. — A. B., 107, High-street, Croydon. Parasite of Crow, or other insect preparations, mounted in balsam, in exchange for Eggs of insects, Diatoms or soundings, mounted opaque. — J. Horn. 5, Belle-vue-square, Scarboro'. For unmounted Hair of Vampire Bat and Seal, send stamped envelope and object of interest. — E. J. Wilson, 14, Albion-road, Dalston, E. I should be glad to exchange Lepidoptera with collectors on the Continent or elsewhere. — Roland Green, Rainham, Kent. C. cdusa, M. cinxia, V. polycliloros, L. adonis, L. cory- don, A. ulmata, and others, offered for Lepidoptera in any stage.— W. Jordan, Cockfield, Sudbury, Suffolk. Sea Birds' Eggs (such as Guillemots, Razorbills Kitta- wakes, Puffins), to exchange for other Eggs, side-blown, or Butterflies. — Geo. W. Coultas, High -street, Bridlington, Yorks. Polariscope Object. — On receipt of stamped and addressed envelope, will be happy to forward a small portion of "' Arra- gonite " from coal measures. Described in Science-Gossip, 1877, page 192, in reply to J. J. M.— Address, J. J. Morgan, 5, Prospect-place, Tredegar. Beautiful opaque object (mounted), Orbulina, from Ber- muda, for other good Foraminifera or Diatoms. — J. Ford, Wood View, Newbridge Crescent, Wolverhampton. Nos. 171, 625, 1071, for 477, 500, 517. Lists exchanged. A very extensive list of duplicates can be supplied by C. A. O., 76, Trafalgar-road, Old Kent-road. Plants of Asarunt curopa-um, or Asarabacca, in exchange for rare British Ferns or flowering plants. — James W. Lloyd, Kington Herefordshire. Well-mounted Slide of part of Caterpillar, showing spira- cles. &c, offered for good clean material, unmounted. — J. Neville, Wellington-road Handsworth, Staffordshire. I have fine specimens (collected last month) of Fritillaria meleagris, which I should be glad to exchange for an example of Utricularia vulgaris, if collected this season, or Hiero- chloc borealis. — G. Garrett, Harland House, Tyler-street, Ipswich. Hcematopinus spinulosus from rat, and H. vituli from calf, offered for other animal paraMtes. Send list to H. E. Freeman, 1, Templeton-road, Finsbury-park, N. Scientific Books and Microscopic Slides, offered for Marine Animals in spirits, especially Cephalopods and Echinoderms. — Wm. Cash, 38, Elmfield-terrace, Halifax. | Side-blown Eggs, 300 varieties, including Golden and other Eagles, Ospreys, Falcons, Owls, Greenshanks, Buzzards, Cup- bills, Stints, Chough, Bartram's Sandpipers, Cranes, Storks, Aquatic Warblers, Bohemian Waxwings, Pine Grosbeaks, Great-spotted and Yellow-billed Cuckoos, Belted Kingfishers, Bustards, Buff-backed and great White Herons, Green Sand- pipers, little and glaucous and other Gulls, and many other varieties. Write for list. Exchange wanted. — J. W. Sissons, 11, Priory-road, Sheffield. Pathological Specimens wanted, either hardened or recent. Choice Slides of very superior finish, or select unmounted materials (of which lists will be forwarded) are offered in exchange. — Dr. Marsh, Duke-street, St. Helen's. Wanted, one or two good specimens of Calymene Blumcn- bachii. I will give a good exchange in Cambridge Greensand fossils. — J. W. Carr, Union-terrace, Cambridge. Several thousand specimens of British Shells, Fossils, Minerals, Slabs of Polished Coral, Madrepores, also specimens from Deep-Sea Dredgings, for Foreign Shells, Fossils from the Gault (if good specimens), and all other kinds of Fossils, particularly Trilobites, or Fossil Crustacea of any kind. — A. J. R. Sclater, 4, Bank-street, Teignmouth. Wanted, Avicula Tarentina, Anomia striata, A. patelli- formis. Area tetragona, Pandora rostrata,, P. obtusa, Tliracia couvc.xa, Thracia pubescetis, Psammobia vespcrtina, P. costnlata, P. tellinelta, Venus casina, V. verrucosa, V. fasciata, Astarte \elliptica, A. sulcata, A. crcbricostata, Pecton Audouinii, Pcctcu danicus, P. tigrinus, P. similis, P. striatus, P. furtivus, for British Shells, if in stock. — A. J. R. Sclater, 4, Bank-street, Teignmouth. "The Zoologist," 2nd Series, complete, in parts, January, 1866, to December, 1876, and vol. i. of the 3rd Series, 1877. 12 volumes ; also Gmelin's (S. G.) Historia Fucoruni, 33 plates, 4to., old calf, 1768 ; also a Mahogany Box (16" x 8") containing specimens exemplary of the manufacture of Alum, from its raw state up to the perfect crystal (a large crystal of Alum, 14 inches long), for works on Fungi, &c. Greville's Crypto- gamic Flora, or Sowerby's Fungi wanted. — C. Perceval, Hanbury, Bristol. For specimen of Anemone Pulsatilla, send address to John W. Carr, Union-terrace, Cambridge. For parasites from Horse or Mole, send well-mounted Slide to George Turvill, East Worldham, Alton, Hants. Birds' Eggs, side-blown, labelled ; well marked and^selected specimens ; all ready for placing in cabinet ; 300 varieties. Exchange arranged by letter. Send at once for full list, post- free, Henry Sissons, Westbourne-road, Sheffield. A naturalist, who is going on a dredging cruise round the South and West coast of England, would be glad to hear from a gentleman having similar tastes who would be willing to join him and pay a small part of the expense. For further particu- lars address C. P. Ogilvie, F.L.S., Sizewell House, Leiston, Suffolk. BOOKS, &c, RECEIVED. " Contributions to the Fossil Flora of the Western Terri- tories." Part II. The Tertiary Flora. By Prof. Lesquereux. Washington : Government Printing Office. 1878. " The Insect Fauna of the Recent and Tertiary Periods." By H. Goss, F.L.S., F.G.S. " Industrial Art." June. " Midland Naturalist." ,, " Land and Water." ,, " Chambers' Journal." ,, "American Naturalist." ,, " Botanische Zeitung." May. " Der Zoologische Garten." No. 4. " Comptes Rendus." No. 20. " Feuille des Jeunes Naturalistes." June. "Journal de 5licrographie." May. " Boston Journal of Chemistry." "Ben. Brierley's Journal." &c. &c. &c. Communications received up to June 8th, J. M. M.— S. G. P.— A. B.— L. L.— R. W.— A. A W. H. P.— E. W. A.— J. T.— J. F. R.— G. H. K.— _W. B.— W. H. S.— A. C. S.— G. N.— E. de B. M.- _S. W.— W. E. R.— T. B. W.— Col. G. E. B.— J. J. M. H.— G. N. M.— W. P.— H. G.-H. U.— G. P. — E. M.— T. W. D.-C. S.— W. W.— M. J. P H. B. C— A. R.— A. B.-W. C— J. W. C— V. G. G. C. D. — J. H. M. — H. E. W. — H. S. — J. W. C. P.— C. A. S.-E. L— W. F. A.- A. M. McA. — Q. C— Prof. B.-R. J. S. -J. P. G.— G. S.-G. J. B. P.— J. W. L.— Dr. R. B.— J. F.— B. M. J. J. M.— M. M. B.-J. W. N.-H. E. F.-H. E. S.-G. W. C.-J. H.— M. V.— W. J.— W. W. C. P.— G. C— E. E. E.— R. G.-E. J. W.- A. B.— F. W. E. S— J. B.-C. F. W. T. W.— J. J. W. S.— Dr. M.— J. W. B.— H. N. B.— G. G.— G. B.— W. S.— W. A. H.— C. F. W.-J. T. G.-C. E. E.— I. C— E. D. B.— T. S. S.— F. M.— T. S.- Dr. R.— J. T. G.— C. S. P. P.— &c. &c. &c. from : — .-]. B.- W. H. P. -F. M. S. M. W.— -J. E. D. -J. C- — E. E.— K. A.— —Prof. G. M. D.~ O. L.— P. M.— R. T.— -J. H.- M. C- W. D.— W. B.— H. H.— HARD WICKE 'S SCIENCE-G OS SIP. 169 ANOTHER WAY OF MAKING PLASTER CASTS OF FISHES, &.C By J. H. LAMPREY, Editor of "Industrial Art." M 1! illi§il I ^vSftfi^+r AVING made many hun- dreds of casts of sea and fresh-water fishes, and having tested every method I have seen employed, I have come to the con- clusion that the simplest and most effectual plan is the following : — Place the fish on a board, pin out its fins and tail neatly with ordinary pins, pass some brown paper or tow inside the mouth, in order to raise the eye if sunken from any cause, or to force asunder the lines of the mouth and operculum, which become contracted after death ; place some putty under the dorsal fin, and then trim away all that extends beyond its outline. The fish is now ready to mould from. Next, take a long strip of thin sheet zinc, about two or three inches deep, and place it in the form of a wall all round the fish, and about one inch from it, at every point ; partly split asunder a fire- wood stick, and with it clip the free ends of the zinc wall, drive in a twelvepenny nail at each end to keep this wall steady. Bear in mind that both the pin points and the nails need only sticking in the wood in the most temporary way. Now take some plaster of Paris in a cup, and, after mixing it as thin as cream, smear the inside of the zinc along its edge where it comes in contact with the board, and pour some down the place of junction near the clip. In a few minutes this extemporized dish is water-tight ; now nearly fill it with the cleanest water procurable, and sprinkle rapidly from a ladle some common or second-rate plaster of Paris, coloured with a little washing-blue, over the fish until it is just covered with plaster ; now lay four pieces of strong cord across the fish, leaving the .ends over the sides of the zinc receptacle ; having arranged these cords so that they just touch the plaster, without any loss of time continue to pour in the dry plaster until the vessel is full, or there is at No. 164. least one inch of plaster over the highest part of the fish, then remove the cords by lifting each end at once ; as soon as the plaster is set, break away the zinc band, and strike the board sharply with a hammer until the plaster becomes detached ; if it sticks closely, pour a pail of water over the plaster, and it will at once give way. Turning over the mould we have the fish buried in the case, or mould of plaster, with only a very small portion of the underside of the fish exposed where it rested on the board. Proceed to break away the thin coat of plaster which has settled along the margin until only an inch of plaster, or even less, remains from the fish outline ; remove the putty from the under portion of the back fin, pull out the padding from the mouth, and then lift up the tail, draw the thin end of the fish slightly backwards and upwards; be careful not to injure the surface, but get out the jaws and raise out the back. Use no force that would break the fine surface of the mould. If need be, open the fish, and remove the intestines, and so give more space for getting out the fish ; this being successfully accomplished, dip the whole mould in water, and then pour in a spoonful of naphtha, which will cover the cast with its oily adhesion ; wash it again with water, and place the mould in a vessel of water ; pour in the plaster so that it will fill the interior of the mould, but have ready some copper bell-wire bent to fit the tail, back fin, and pectoral fin, if raised at all. No care need be bestowed upon the shapes of these wire supports so long as they are flat and just roughly define the form of the tail and back fin ; the plaster must be poured over the mould in sufficient quantity to represent the board on which the fish was resting. By casting under water there are no air-bubbles, and the plaster is homogeneous. After a few hours, which may be profitably spent in cleaning up the work-table of all the filthy plaster, the plaster-mould must be plunged into cold water, and the table on which it i-ests must be struck with a mallet. To cause the mould to separate from the cast, take a chisel, and where the line is defined by the 1 170 HARD W1CKE 'S SCIENCE ■ G OSSIP. plaster of the mould tinted with washing-blue and the perfectly white plaster of a better description used in the casting, insert the edge of a broad chisel, and tap it gently with the mallet ; make several very cautious attempts along the edge of the two plasters, until there is an evident sign of a parting having taken place ; now plunge the whole under water, or pour some over the edge, and the shrinkage will give the desired cleavage. If, in endeavouring to break open the plaster, a portion of the cast is knocked away, it can be replaced, the cords drawn up through the half set plaster have served to cut it up, but if the fish is round, and the plaster has much "under-cutting," it will require much skill to break away the mould without injury to the cast beneath. It will be well, therefore, to commence operations with a flat fish, whose head, mouth, and eyes are the only highly developed portions ; the fins can be pinned out, after the skin has been washed with great care, to remove all the slime with which most fish are covered. The body of the mould taken from a flat fish of course will come away like a seal, the impression beneath being devoid of undercutting, but the head of the fish cast requires great care, as about it are portions of great delicacy of structure which may break away, Casts of fishes in plaster are only of value to the student ; they are heavy, and liable to injury ; to be worth having, fish-casts should be made in paper. From the plaster moulds we have described these paper casts are made by successive layers of clean white paper, and paste made from rice flour, backed by coarse paper, chips, and thick wood shavings, inter- spersed in the work, or a bit of common wire netting cut to fit the mould, if the fish to be represented is large in size, as a salmon or pollack. The first layers of white paper need being spread with extreme care, and if edges do occur in these first layers, the paper must be torn and not cut, as the joining cannot other- wise be concealed. The plaster cast cannot be painted, all the attempts to make plaster and colour agree having hitherto failed, andwhere gilding is resorted to, the sharp- ness of the cast is utterly ruined. The paper cast can be painted in fine washes of water-colour, or gold and silver. The varnish over water-colour does not.injure the sharpness of the mould, and it is possible so to imitate a fish, in this way, that the veiy keenest angler may be deceived as to the material. l There are some fishes which can be cast showing both sides, as a gurnard, or a cat-fish. Suspended by a fine line, these casts are capable of accurately representing the originals, but there is one difficulty about plaster casting, — it is, without exception, the dirtiest occupa- tion upon which an amateur can engage himself. The plaster (if not properly dealt with) will follow the operator over the house, adhering to his boots and clothes, and hands, to the great discontent of servants and others, who object to the filthy traces which are so difficult to remove from floors and carpets. IS THE BLACKNESS ON ST. PAUL'S MERELY THE EFFECT OF SMOKE ? By Professor Paley, M.A. MANY years ago I took a great deal of pains to investigate a question which to many, perhaps, will appear both trifling and useless, but Avhich really has an important bearing on the aspect of our great public buildings. It is often said, that Paris is not such a smoky city as London, because the stone buildings are much whiter. The north side of St. Paul's Cathedral must, from its extreme black- ness (curiously relieved as it is by lines and patches of light), have attracted the attention and excited the regret of most observers. There are other buildings, of course, built with the same kind of stone, which are equally black ; there are even towns, such as Bath, built entirely of a similar (oolite) stone, where all the new houses are of a rich creamy colour, but most of those built a hundred years ago are as black as a piece of black cloth. From investigations I made, and which I think worth being recorded, in order that further inquiries may be conducted with patient and scientific care, I was led to believe that this blackness is due to a hitherto unknown and undescribed species of lichen. Two of its peculiarities are, that it only grows upon some kinds of limestone, and it will not grow where the rays of the sun fall directly upon the sur- face. I first noticed the latter fact in a wall of rusticated Italian work at Cambridge. It faced due west, and it overlooked the country for many miles, so that smoke was not likely to have caused the blackness. The whole wall in this part reminded me somewhat of the lights and shades of a photograph. Those surfaces were quite black on which the sun could not fall, and those remained quite white on which the rays were directly incident. I concluded that, at least, sun-light was in some way concerned in the appearance produced. But what reason can possibly be alleged why a stone should contract less soot in the light than in the dark ? I proceeded to scrape off some of the black sur- face, which I collected, in the form of black dust, exactly like gunpowder. If, I argued, the blackness is really soot, surely a washing in hot water with soap or soda will bring me white lime-dust, or lime- sediment. But no ! I might as well have tried to "wash a blackamoor white." The gunpowder was gunpowder still, as far as the look of it went. Then I tried the microscope. The washed granules were intensely black, somewhat amorphous in aj)- pearance, and more or less angular. My power was not very high, and my knowledge of such very minute cellular structure was too small : I could not say whether the object was organic or inorganic. I was afterwards told that under a good microscope it HARD WICKE 'S SCIENCE - G OS SIP. 171 had been conclusively proved to be vegetable, i.e. -a lichen. I found by extended inquiry that the Portland, the Bath, and the Barnacle (also lower oolite) stone were all liable to the blackening in the course of time. But the churches and buildings of sandstone, in that most smoky of towns, Wolverhampton, were not blackened at all. Evidently it was an effect peculiar to limestone. I observed further, that in fluted columns, window- jambs, arches, &c, the blackness was always in pro- portion to the absence of sun-rays, and that the stone remained quite white where the sun shone full upon it. If any one will walk round St. Paul's, and com- pare the south with the north side, he will see the difference. Let him also notice the lines left white by the oblique rays of the summer sun on parts of the north wall. In Bath, you may see whole ranges of buildings, like the Circus, so black on the sunless side, that in many cases the walls have been painted with black paint, as giving at least a more shiny and respectable black than my mischievous little lichen, which has a dingy, sooty, uncanny appearance. In other parts you may see a wall on the north side perfectly black, while the east wall of the same building is perfectly white. On the smoke-theory, this is inexplicable ; on the light-theory, it is precisely what we might expect. For if this blackness is really, as I now fully believe, due to the gradual growth of a lichen, we may conclude that it dislikes surfaces warmed and dried by the sun ; and it is also to be inferred that the lime is a necessary part of its food. I examined a curious lichen, that grew in circular patches on the Barnack stone in Peterborough Cathedral, and I found that it had the property of extracting quantities of lime from the texture of the stone. But its extremely slow growth, requiring a long series of years before complete blackness results, its very hard and stony texture, its amorphous form, and its extremely low organization, — the lowest, perhaps, that vegetable life can possibly possess, — render its history a very interesting one. The practical result of the inquiry would be, to ascertain if Portland and Bath stone can be treated with some chemical solution, such as sulphate of copper, which would prevent the growth of the lichen, sup- posing it really to be such. It would be a valuable scientific discovery that a brush and a pail would restore surfaces that no water-washing will keep dean, and not only restore, but prevent from future discoloration. If it be true that the beautiful Caen stone used in Paris does not become thus black, it must be due to causes well deserving of investigation. One cannot help hoping that some process of "pickling" build- ing-stone may be discovered, which will tend to make churches and mansions less like an undertaker's hearse. I have not given, in this brief paper, the substance of nearly all the observations, experiments, and reasonings, which led me to the result I have de- scribed. But I think some grounds of probability have been shown, enough to encourage those who are competent to prosecute the inquiry. It is still open to conjecture, that some chemical change in the texture of the stone, — some oxidizing process gradually effected by the air,— may be the cause of the blackness. But the singular effect of sun-light in preventing it is a fact beyond all question, and one that must be borne in mind in forming any conclusion on the subject. A CHAPTER ON MICROSCOPIC FUNGI. (Perisporicurei. ) By Greenwood Pim, M.A., F.L.S. THIS is a small but very interesting group of leaf parasitic fungi, and includes most of the forms popularly known as Mildews. In their immature condition three species of this order form the mildew of the rose, vine, and hop, respectively. That the vine mildew is a member of this group is to a certain extent an assumption, as its perfect fruit has never yet been discovered ; and it is only by its analogy to, almost its identity with, the rose, pea, and hop mildews that it is believed to be the conidiophorous condition of an allied species. All Perisporiacei consist at first of a woolly growth, consisting of delicate threads of concatenate cells, arising from a mycelium, which makes its way through the parenchyma of the stems and leaves of the plant on which it occurs. Under a low power of the micro- scope a mildewed rose-leaf looks like a delicate forest of crystalline vegetation. The threads break up very easily into their component cells, each of which, on meeting with a suitable nidus, immediately com- mences a separate existence, and, as is well known to rose-growers and others, spreads with a rapidity almost marvellous. In this condition the various species obtained the name of Oidium, and it is only comparatively recently that the identity of the Oidium with the fully-developed conceptacles of the mature form has been demonstrated. In the case of the vine mildew, only the oidium or conidiophorous condition is known ; the cells of these threads being known as conidia. In the other species, towards autumn a kind of spherical capsules are formed, each containing one or more sacs or asci, which include 2, 4, 8 or more spores. These concept- acles are usually furnished with curiously-formed ap- pendages, threadlike, curved, hooked, horned, needle- shaped, forked, &c. By these characters, as well as he number of asci and spores, the species which were I 2 172 HARD WICKE 'S S CIE NCE - G 0 SSIP. formerly almost all included in the genus Erysiphe, have been divided into the following genera : — Peri- sporium, Lasiobotrys, Spharotheca, Phyllactinia, Unci- nitla, Podosphcera, Microsphezria, Erysiphe, Chcrto- mium, Ascotricha, Eurotium. I will endeavour to describe the forms most usually met with, and would refer any one who wishes for fuller and more detailed information to Dr. Cooke's " Rust, Smut, Mildew, and Mould," and to his "Handbook of British Fungi," to the latter of which I am indebted for the generic and specific descriptions. PERlsrORlUM, Kunze. Perithecia (conceptacles) subglobose, without manifest mycelium or append- ages ; spores numerous. The three species described are far from common, and appear to approach in character the neighbouring order Sphariacei. Lasiobotrys, Kunze. Erumpent, central peri- thecia between fleshy and horny, proliferous, collaps- Fig. no. Phyllactinia guttata. ing above, attached to radiating fibres ; secondary perithecia ascigerous ; asci cylindrical. There is only one species, which is parasitic on living leaves of Lonicera — L. lonicercc, Kze., which, though not com- mon, appears widely distributed. It differs from the rest of the order in being subepidermal. Spplerotheca, Lev. Perithecia globose, spring- ing from an arachnoid mycelium, containing one many-spored ascus. Sphrerotheca is distinguished from Erysiphe by having a single many-spored ascus, while the latter has several asci, each containing but few spores. Appendages numerous, floccose. S. pannosa, Lev., the Rose Mildew, occurs on leaves, petioles, &c. of roses. The conidiophorous condition is extremely common, while the perithecia, which are very minute, occur but very rarely. S. castagnei, Lev., which differs but little from S. pannosa, is found on Hops, Meadow-sweet, &c. Phyllactinia, Lev. Perithecia hemispherical, depressed ; appendages needle-shaped, stiff, and brittle. P. guttata, Lev. Conceptacles large, easily distin- guished by their straight acicular appendages. Occa- sionally very abundant on Hazel, also on Ash, Elm, Alder, Birch, Oak, Hornbeam, &c. (fig no). Uncinula, Lev. Perithecia globose ; appendages numerous, simple, or dichotomous, always hooked. U. adunca, Lev. Perithecia scattered, small ; appendages simple, hooked ; asci 8-12, containing 4 spores. On leaves of Willows, Poplars, Birch, &c. Rather common (fig. in). U. bicornis, Lev. Mycelium effuse ; perithecia rather large ; appendages bifid, hooked ; asci 8, Fig. in. Uncinula adunca. Fig. 112. Uncinula bicornis. containing 8 spores. Sycamore-leaves, — common, (fig. 112). U. Wallrothii, Lev. Perithecia minute; asci 12-16, 6 spores ; appendages very long, hooked, simple. Distinguished from U. adunca by the greater length of the appendages (fulcra). Podosph^ra, Kunze. Mycelium arachnoid ; perithecia globose, containing a single 8-spored ascus ; appendages few, repeatedly dichotomous, thickened at the extremity, hyaline. P. Kunzci, Lev. Perithecia minute, scattered, globose ; appendages 3 times the diameter of the perithecium. On plum-leaves. P. clandestina, Lev. Similar to P. Kunzei, but appendages much shorter and more numerous. On HARDWICKE'S SCIENCE-GOSSIP. 173 leaves of hawthorn, common ; the conidia stage very 1 abundant in spring. Microsph^ria, Let'. Perithecia globose, with many asci ; appendages dichotomous. M. Hedzuigii, Lev. Hypophyllous ; conceptacles minute ; appendages few, scarcely longer than the perithecia ; asci 4, containing 4 spores. On mealy Guelder Rose (fig. 113). M. penicillata, Lev. Appendages 8-12, equal to diameter of perithecium ; asci 4, containing 8 spores. On Guilder Rose and Alder. M. mougeotii, Lev. Appendages loosely dichoto- mous ; asci 12-16, 2-spored. On leaves of Lycium barbarum. M. berberidis, Lev. Mycelium web-like, persistent; appendages 5-10, long, divaricate, obtuse; asci 6 ; spores 6-8. On Berberry, — abundant. M. grossularitz, Lev. Mycelium web-like ; perithecia scattered ; appendages 10-15, vaguely dichotomus ; asci 4-8, spores 4-5. On gooseberry-leaves, — very common. M. comala, Lev. Perithecia scattered, minute ; asci 8, ovate beaked, containing 4 spores. On Euonymus. Fig. 113. Microsphteria. Fig. 114. Erysiphe Montagtui. Erysiphe, Hedw. Mycelium arachnoid ; appen- dages floccose, simple or irregularly branched. * Asci 2-spored. E. Liukii, Lev. Perithecia minute, scattered ; asci 8-20, pyriform ; appendages interwoven with the mycelium. E. laiHprocarpa, Lev. Perithecia minute, globose, scattered or gregarious; appendages coloured; asci 8-16, shortly pedicellate. On Salsafy, Plantain, &c. ** Asci 3-8 spored. E. graminis, D.C. Mycelium effuse, floccose; peri- thecia large, hemispherical, at length depressed and semi-immersed ; appendages simple ; asci 20-24. On various grasses — autumn. E. Martii, Lk. Mycelium web-like, often evanes- cent ; perithecia globose, varying from yellow to black ; appendages short ; asci 4-8, globose, with 4-8 spores. On Peas and Umbelliferse, — very common. E. Montagnei, Lev. Perithecia minute, globose; appendages distinct from mycelium ; asci 8, spores 2-3 (fig. 114). E. tortilis, Lk. Perithecia minute, globose ; ap- pendages veiy long, 10 times diameter of perithecium ; asci 4, with 4 spores (fig. 115). E. communis, Schl. Mycelium effuse, evanescent or persistent ; perithecia small ; appendages short ; asci 4-8, ovate-rostrate, 4-8 spores. On various Legu- minosre, Ranunculus, &c. E. horridula, Lev. Mycelium web-like ; perithecia clustered ; asci 20- 24, oblong, attenuated, with 3-4 spores. On Bugloss. Ch^tomium, Kunze. Perithecia thin, brittle, mouthless ; asci linear ; spores lemon-shaped. C. datum, Kze. Perithecium sub-ovate, hairs on vertex very long, interwoven, branched ; base of perithecium fibrose ; sporidia broadly apiculate. On straw. C. chartarum, Ehb. Perithecium subglobose, black, surrounded by a bright yellow spot ; spores subglobose (fig. 116). On paper. C. glabrum, B. Recorded by Berkeley, not de- scribed ; cf. " Grevillea," ii. p. 165. C. murorum, Corda. Gregarious, glaucous blackish ; perithecium sub-globose, brown, hairs circinate, Fig. 115. Erysiphe tortilis. Fig. 116. Cluttomiitm chartarum. pulverulent, erect, septate ; spores oblong. On plaster. C. griseum, Cooke. Subgregarious or scattered, grey or cinereous ; perithecium globose, brown, sub- membranaceous; hairs long, elastic, circinate, pellucid; asci clavate, fasciculate ; spores lemon-shaped, colour- less, endochrome granular. On old sacking. (Cooke in " Grevillea," i. p. 175.) C. funiculum, Cooke. Perithecia scattered, sub- ovate, black ; hair on vertex veiy long, dichotomous or simple, erect, slender, acute, black ; sporidia lemon-shaped, dingy brown. On twine. British Museum. (Cooke in "Grevillea," i. p. 176.) Ascotricha, Berk. Perithecium thin, free, mouthless; threads loose, branched, conidiophorous; asci linear ; spores, dark elliptic. A. chartarum, B. Perithecia olive-brown. On paper. Eurotium, Link. — Perithecia reticulated, ves- cicular, coloured, attached to mucedinous threads. E. hcrbariorutn, Link. — Perithecium spherical, 174 HARD WI CKE ' 6" S CI EN CE-GO SSIP. flattened, yellow, seated on radiating, branched, intri- cate flocci. On various decaying substances, tan, &c. This is the fully-developed form of Aspergillus glaucus. A word in conclusion as to mounting these fungi for the cabinet. They seem to be best put up in shallow varnish cells, filled with glycerine and water. Deane's gelatine, so invaluable a medium for most other vegetable preparations, is too viscid, the appen- dages enclosing a myriad of air-bubbles, which in gelatine are almost impossible to get rid of. More- over, without a cell the covering-glass presses too closely and is apt to cause the perithecium to rupture from pressure. The modus operandi is a simple one. When the cell is ready, filled with dilute glycerine, scrape the leaf on which the parasite grows with a sharp knife, which will remove a good number of perithecia ; push gently into the mounting fluid, and finish as in any other wet mounting. ON TANKS FOR THE BREEDING AND MAINTENANCE OF MICROSCOPIC ORGANISMS. IN the May number of Science-Gossip a corre- spondent seeks information on the subject of the establishing and management of tanks or receptacles for the preservation and development of microscopic organisms. To the microscopist it is a matter of some importance, and one of which there seems to be no record of any valuable, reliable, or actual experience. The subject is of deep interest, and possibly your corre- spondent and readers generally may consider the few following notes, founded on many years' experience, worth attention, more especially as the mode of esta- blishing a permanent tank, containing microscopic plants and animals only, is not generally studied or even understood, the popular idea being that a collec- tion of organisms found in the water of a rich pond turned into a glass vase will at once afford and possibly maintain and develop objects of interest and curiosity for immediate examination, when in fact a keeping or breeding tank requires many months, sometimes years, for the perfect development of its contents. No one could hope to raise the most interesting features (to a microscopist) of a garden in a few days. Time and the seasons are required to develop the mosses, lichens, fungi, and obscure growths to be found on good rockwork : the same prolonged causes developing life, apply (perhaps in a lesser degree) to the microscopist's breeding-tank ; it is a question of patience. As a notable instance, the statoblasts of the most beautiful of fresh-water polyzoa (Lophopus) are frequently found in early autumn in the muddy sedi- ments of ponds, rich in microscopic life. This sediment, transferred to a well-ordered perfectly- balanced tank, will produce the young polyps freely in the spring, and there are numerous instances of a similar character where time is a factor in the appear* ance of microscopic life in captivity. In the practical management of these tanks two points are of essential importance : first, size, and, as regards light, position ; secondly, the internal arrange- ments, and the character, requirements, selection, and management of the occupants, both vegetable and animal, so as to ensure development and repro- duction. The shape and place of occupation of the receptacle claim the first attention, and are of great importance. It is true that ordinary glass jars or vases of various sizes ai-e continually used with more or less success in preserving living objects, but they utterly fail as breeding or developing places : their circular forms impede observation ; again, their portability causes them to be frequently shifted into different aspects, which is fatal to steady development. They are too often placed in positions overwhelmed with light, when they rapidly become choked with filamentous algae, destructive to the preservation of the higher microscopic forms. The proper adjustment of light seems to be the touchstone of success in the cultivation of organisms, both animal and vegetable. The vitality of some water-plants, under what would seem the most unfavourable, but, as it turns out, the most favourable circumstances, is very singular ; the merest fragment of Nitella will live for months in a wine- glass of water, or even in a small test-tube, if kept in a cool and rather dark place, but abnormally excited by exposure to sun, light, and heat, it soon fades and collapses. This is a lesson of importance, as un- doubtedly the same influences affect minute animals. The tanks for the purpose in question should not be too large ; a convenient proportion, and meeting all contingencies, is a vessel made of narrow iron frame-work, glass sides and ends, with slate bottom, measuring fourteen inches wide, fourteen deep, and twenty-eight inches in length. Two or more of these tanks are necessaiy : two are indispensable, as there is a marked difference in the character of the occu- pants of a tank facing a wall with only side light (and no sun) and another facing a window (north aspect) with occasional rays of setting sun. Besides these permanent and larger receptacles, sauare glass vases or vessels, such as are sometimes used for galvanic batter}- cells, of the capacity of three pints, are very valuable to contain objects dipped from the larger tanks for special observation on the study table. The permanent tanks should be placed in position and never again moved. A good aspect is north- east, fronting a window catching an hour's early morning sunlight, but a better is against the wall of a room or hall with a full side-light, and no sun; the difference between the life contained in tanks placed in such positions is strikingly apparent. Of the internal arrangements anything approaching the idea to make it "pretty" should be studiously HARD WICKE 'S S CIENCE - G O SSIP. i75 avoided : nothing should be included but with the object of use — the more useful the more beautiful it will be ; two pieces of goodly-sized stone or irregu- larly shaped brick should be placed nearly touching the front glass ; these stones soon become covered with organisms, and may be so adjusted as to be within range of an ordinary magnifying lens. Two or three plants (not more) of vallisneria, or chara, are to be planted in one corner in well- washed gravel, banked up with one of the pieces of stone ; the other part of the floor of the tank should be left bare, to facilitate the picking up, free of sand or gravel, of anything that may appear. If a pond be accessible, three parts of the tank are filled with water from it ; if it be cloudy or even muddy the result may be more favourable. After being left in repose for at least a week, the character of the contents (if the pond be fairly productive) will be seen ; the water will be clear and probably reveal a variety of common objects, such as larva; of insects, entomostraca, planaria, and hydra; ; in a week or more vegetable growth will appear, covering every portion of the interior. The tank is now in a condition to be inoculated with whatever choice objects can be obtained, the result of special and favourable gatherings, and this should be repeated frequently ; the front glass must be occa- sionally cleaned with a sponge tied to the end of a cane, but on no account be tempted to touch the sides or back : the water will soon become as clear as crystal, however muddy it may have been when first introduced. The pieces of stone will show signs of vegetable growths, with patches of such forms of in- fusoria as vorticella; and stentors. The waste from evaporation must be supplied by additions of pond water (the richer the better), and such a tank will be, in a month or two (not before), a marvel of micro- scopic beauty and interest. The untouched back glass will be covered with a dense mantle of dark- green velvety vegetation, in the midst of which will be discovered groups and patches of the fixed infusoria, and it is essentially the habitat of the polyzoa; hydra?, and the rarer rotifera philodina, even melicerta and^stephanoceros, may be found under such circumstances, to say nothing of the countless tribes of free infusoria, ever ready for observation in all their various phases of existence, and such con- ditions will preserve and increase them indefinitely. Enemies to eliminate are larva; of insects (but these soon disappear naturally), the fluviatile arachiada;, and the larger molluscs; the latter in browsing through the vegetation on the glass are apt to destroy perhaps a favourite group of stentors. Other enemies are the floating filamentous alga; ; they should be removed, but if the tank be well watched as regards light no trouble in this respect may ensue. Nothing ought to he planted in the middle, as it is of importance the back glass should be clearly seen, and much may be lost if anything impedes this view. It needs hardly be said that the water must never be changed. Tanks so established will greatly improve by time, even when it extends to years. It is worthy of note, as a matter of practical observation, that a great excess of animal life (of a certain character) much conduces to the development and well-being of microscopic life. In a tank measuring fourteen inches deep by fourteen wide and twenty-eight inches long, five full-grown Mexican axolotls (nearly as large as water-rats) have existed and thriven for more than four years. In every part of this tank there are swarms of Crustacea, infusoria, and rotifera, and the back glass facing a wall is covered with the velvet- like growth, shading off into patches of pale browns and purples, imbedded in which are considerable masses of living animal objects. It would seem as if the rejectamenta of these axolotls (they are fed once a week with strips of raw beef) is conducive to the development of life. In large ordinary tanks with growing plants of vallisneria, and not devoted to the special object of these notes, it is desirable to have a piece of floating wood ; it will in a few weeks or months form the nidus or habitat of many strange organisms. Vegetable forms requiring running or moving water, as desmids, vol vox, &c, cannot be reared or even kept in captivity. Much might be said of collecting to supply tanks with objects did space admit, but hydra; and countless forms may be procured in abundance by the very simple process of bringing in a handkerchief-full of duckweed, washing it thoroughly in a pan, rejecting the weed, and pouring the resulting water into the tanks. Crouch End. E. D. HOW TO USE THE MICROMETER. By F. Kitton, Hon. F.R.M.S. ALL interested in microscopic studies have been more or less inconvenienced by the frequent absence of a scale of measurement attached to the figures ; this is a great blemish in that otherwise valuable work, " The Microscope," by Dr. Carpenter. This in many cases was no doubt unavoidable, no scale having been given with the original figures. As the measurement of microscopic objects is by no means difficult, eveiy one using the microscope should make it a rule to ascertain the dimensions of the objects he is examining. The only additional apparatus required is some form of camera lucida : personally I prefer Wollaston's ; others give the preference to Beale's neutral-tint camera lucida (the former costs 21s., the latter 7s. 6d.), and a micrometer ruled in txits a"d r^ls. The chief difficulty in using the camera of Wollaston is bisecting the pupil of the eye with the edge of the prism ; if this is not care- fully attended to either the paper or the object be- comes invisible : practice soon overcomes the diffi- culty. In using either form of camera it is necessary that the body of the microscope should be horizontal. 176 HARD Wl CKE 'S S C1ENCE - G OS SIP. In using the camera lucida two things have to be considered : the dista nee of the prism or the reflector from the object, and its distance from the paper. (In my own instrument the edge of the prism with B ocular, and i-in. Ross objective, is exactly 12 inches from the object ; this distance with the paper 10 inches from the edge of the prism gives a magnifica- tion of 369 diameters.) As the length of the body and the magnifying power of the objectives and ocular are variable, it is best to construct a scale for the purpo se of ascertaining in the first instance the amplification employed ; the most convenient is the following : Rule a line 10 inches in length, a, (fig. 117), and from the centre of this rule another from 300 to 500 diameters by using the A B and C oculars, and adjusting the amplification by means of the draw tube or the elevation of the microscope. A memorandum may be kept of the ocular used, the length of tube, &c, but I always measure off a "Ol with micrometer, which should of course represent I, 2, 3, 4, or 5 inches, according to the amplification employed. The eye-piece micrometer, in its simplest form, con- sists of a disc of glass upon which a series of equi- distant lines are engraved; this is placed on the diaphragm in the ocular, the lines being magnified by the eye-lens. The distance of these lines is not important, but, whatever their distance, they must be Fig. 117. Diagram to illustrate Micrometer Measurements. C3 PL. o ■t H Bj Ten Centimetres. One Decimetre. Ten Millimet res. Illlllll line, b, of the same length at right angles to it ; care- fully divide these lines into inches and tenths, then rule lines commencing at a to the point c parallel to the vertical line a ; rule nine other lines 1 inch apart : each of these divisions represents one hundred diameters. The inner margins of the lines b c should be divided into tenths, and we shall then have a series of diameters increasing by tenths 100, 1 10, 120, &c. This space between the lines a and e should be ruled as accurately as possible with lines "i'o of an inch apart ; this will give measurement to the •0001 of an inch. I always prefer using such diameters as are easily divided, viz., 100, 200, 300, 400, &c. With my i objective I obtain a range of made to coincide with the divisions on the stage micrometer ; when this has been done the object is placed on the stage, the number of divisions occupied by it gives the diameter in parts of an inch or milli- metre, according to the divisions of the stage microme- ter. This method, although somewhat less trouble- some than that just described, is not so accurate, and if the object is somewhat opaque (e.g., Aidacodiscus formosus), the divisions on the eye-piece micrometer are very indistinct. For very delicate measurements eye-piece microme- ters with fine screw adjustments are used, but for ordinary measurements the camera lucida and stage micrometer will be found sufficiently accurate. HA RD WICKE 'S S CIENCE - G OS SI P. 177 Microscopic dimensions in England and America are usually given in parts of an inch ; Continental observers now generally employ some division of the millimetre, such as 'I, 'OI, "ooi ; the latter is sometimes written thus : 1 /* (/* = 1 millieme) -ooi of an English inch = 25 /* -399. An English inch contains 25 mm. "3995- A millimetre may be roughly estimated as being equal to ^ of an inch. Ehrenberg, Kiitzing, and the earlier microscopic observers used fractions of the Paris line, or the ■£? of a Paris inch ; the latter equals 27 mm. "12 ; the Paris line equals 2 mm. '255. Rees gives the Paris line -088815 of an English inch ; the nearest vulgar fraction to this is 2-23rds = 087 12 1, differing by less than I -500th of an inch. Practically the French inch is equal to iT'ff English inch. The scale used by Ehrenberg was i-25th of a Paris line, magnified 300 diameters equalling two Paris inches in length. NOTES ON THE RHODODENDRON. (~\N Saturday, the 1st of June, on our visit to the ^~*f Rhododendrons, at Cobham Park, my atten- tion was drawn to the form of the flower by a query from one of the party as to how fertilization was brought about, seeing that the stamens and style all pointed upwards, and the style was greatly exserted beyond stamens. I was thus led to pay particular attention to the point ; and, I think, was enabled to arrive at a just solution. A very small amount of attention demonstrated quite clearly that the plant is proterandrous, i.e., that the stamens arrive at maturity before the stigma is in a receptive condition ; and that, therefore, although the flowers are bisexual, they are to all intents and purposes unisexual, as the stamens of a given flower cannot fertilize the ovary of the same flower. This might be inferred from the size and showiness of the flower, as such plants, it has been clearly shown, are usually entomophilous, i.e., are fertilized through the agency of insects. We were soon enlightened as to the peculiar fitness of the upturned style and stamens for the purpose of securing cross fertilization by the agency of large honey-loving insects, such as the bee. While examining a cluster of flowers a large bee or bee-like insect was seen to enter a flower ; and, alighting upon the stamens, to apply its long pro- boscis to the upper part of corolla at a point about half-way down the tube. An examination of other flowers showed in every case at this part a large drop of fluid matter resembling dew or rain, but which proved, on tasting, to be honey. The modus operandi of fertilization was now patent enough. Large insects, such as the bee, are attracted by the honey ; and, from its position within the tube of the corolla on the upper side, and from the form and position of the 7tp-curved stamens, are unable to reach it without, in the male condition of the flower, literally dusting the under-side of the thorax and abdomen with pollen, and without, in the female condition, where the style protrudes beyond the now pollenless stamens, depositing a portion of their trea- sure upon the expanded glutinous stigma. Thus, as they flit from flower to flower, in search of honey for their own benefit alone, do these insects unwit- tingly carry on a work that is absolutely essential to the continuance of the specific life of the Rhodo- dendron. We may thus in a general way see and admire the mutual adaptation of insect and flower for each other's good, but a closer examination of the flower will reveal to us many small modifications in the form of corolla, stamens, ovary, &c, which cannot fail to increase our admiration. ULftlNUS CALYX oVARr I IMPERFECTLY 1 0 CELLED Fig.* 119. Ovary of Rhododendron. Fig. 118. Pistil of Rhododendron. INTERIOR Fig. 120. Stamen of Rhododendron. HONEY CANAL -1 DORSAL RIDGEv^^* A Fisr. 122. Cross section of tube of Corolla. First, with regard to the colour of the corolla. This is of an almost uni- form tint, varying in different plants, from deep rose-colour to pale pink, or even white. Within the tube, how- ever, on the upper side a number of yellow oblong splashes will be found forming more or less distinct lines, clearly converging upon the drop of d£i^"a?W honey already alluded to. Sir J. Lub- of Stamen (mag.), bock has shown by direct experiment that insects profit by experience, and having once learnt that certain lines or striae lead to their food, use them as guides in their future excursions. Hence, doubtless, s78 HARDW1CK&S SCIENCE-GOSSIP. the raison d'etre of these lines or splashes in the Rhododendron. Secondly, with regard to the form of the corolla. This, as in all Ericaca?, is monopetalous. When pulled off and examined, it is found to be curiously folded and plaited, especially near the base of the tube on the upper side. A cross section taken near the base is fairly represented by fig. 122 (magnified). It will be seen from the figure that the dorsal fold is so deep and perfect as to form a tube or canal. This channel gradually shallows out at the point where the honey is always found. What is its use ? At first sight it appears as though the honey were secreted by the corolla itself at the point where found, but such is not the case. On pulling off the corolla, the honey will be seen oozing from the upper side of the base of the ovary. The use, then, of this fold appears to be to act as a tube for the passage of honey from the base of the corolla to a point nearer its mouth where it is more readily accessible to insects of a large size. The honey, doubtless, passes up this tube by means of capillary attraction. The stamens are very peculiar, as will be seen from fig. 120. The lower half is thickly covered with stiff glandular hairs of very various forms and lengths. Some of these forms are represented in fig. 121. One use of these hairs is, perhaps, by firmly interlocking, to strengthen the stamens, and enable them the better to resist the pressure of insects alighting upon them ; but the principal one, I should think, is by means of their crowding and intertwining, to prevent smaller insects, that would be incapable of carrying on the work of fertilization, from penetrating to and carry- ing off the honey, which is the incentive to the visit of those larger insects that are capable of performing the task. The bottom of the stamens, as shown in fig. 120, is free from hairs, and rests in a groove in the hypogynous disc that surrounds the base of the ovary. This insertion in a groove and close application to the ovary cannot fail to give additional stability and strength to the stamens as a whole, while it most effectually prevents any insect from arriving at the source of the honey. The imperfectly ten-celled ovary, with its surround- ing secreting disc, is represented by fig. 119. The upper two lobes only of this disc, which are larger than the rest, appear to be concerned in secreting, or, at all events, in pouring out the honey. This paper is written, not as an exhaustive account of the flower of the Rhododendron, but as an incen- tive to further examination by others. As my oppor- tunities of observation are small, I feel sure that those more favourably situated may, by a little atten- tion, show us many curious and highly-interesting points that I have altogether overlooked ; and I, for one, should be very glad to get a fuller and more perfect account of this plant. Rochester. J. HF.rwoRTH. ACCLIMATIZATION OF PALMS. By Staff-Surgeon R. Nelson, R.N. PLANTS differ greatly from animals in the close- ness of their adaptation to meteorological and other conditions ; hence, on the one hand, while in England, we can have parrots, monkeys, lions, tigers, and other tropical and sub-tropical animals, live with us during winter, and even the polar bear look as pleased as a bear can look during our hot summer months ; we lose, on the other hand, the enjoyment of many beautiful wild flowers and magnificent forest trees which enliven the scenery and greatly enhance the pleasure of the traveller abroad. Who that has travelled much does not remember the pleasure, nay, the rapture which he felt as he neared his first foreign port — say Madeira, for in- stance— in beholding the luxuriant "feathery palm- trees rise," as Heber sung when he linked them together with other of our earthly conceptions of "the better land." They are undoubtedly the first objects which forcibly strike the wanderer, and enable him to realize that his dear old home is far behind, and that he is, indeed, in a distant land. There is nothing so thoroughly foreign to the eye, and few objects in nature more attractive. The long-tailed Celestial, the almond-eyed "Jap," and the black- skinned negro, have been long familiar in our streets, but the palm stands out in broad relief as the first novelty which attracts attention abroad. Having lately spent some months in Shanghai, I have been led to these remarks by observing, during the present severe winter, how well the few palm- trees planted there have withstood the rigour of the climate, and was first forcibly struck with the subject when, one bitterly cold morning, a friend called my attention to the almost anomalous condition of nature, that the palm-trees were covered with snow ; and very pretty objects they were. What genus or species of Palmacese they belong to I cannot at present discover, but doubtless many readers of Science-Gossip know which are the hardiest of the order. That the specimens planted along the Bund of Shanghai are as graceful as the lofty cocoa-nut trees of Ceylon, or the Sago-palm of Borneo I do not maintain ; but they are well worthy of the attention of those interested in the acclimati- zation of plants, for few things would add more to the beauty of our parks, or better set off a landscape than endogenous trees, of which our climate has, or is supposed to have, deprived us. Shanghai is situated on the Woosung river, about twelve miles above its junction with the mighty Yang-tze-Kiang ; the country around is perfectly flat, and the soil alluvial. Although so far south as 31° N. lat., 200 below the south of England, the winter is rigorous, and altogether the climate bears a most remarkable contrast to places in the western hemi- HARD Wl CKES S CIENCE - G O SSIP. 179 sphere situated in nearly the same parallel of latitude e.g., Malta and Bermuda. The following table shows the average mean monthly temperature of several years past : — January February March April ... May . . . June ... 400 Fah. 42° ,, 5o° „ 58° „ 69° „ 76° „ July ... . August September October November . December . °3 83' 67 55 47 Fah. >) During the recent winter there has been at least ten days continuous skating, and the thermometer during the month of January was frequently below 200 Fah. or 120 below the freezing-point. During the last six months there has been an extreme range of 820, i.e. from 990 to 17°. This subject is well worthy of enlargement and development, but meantime this is perhaps enough for Gossip. SKETCH OF THE GEOLOGY OF DUBLIN AND WICKLOW. By Wm, Hellier Baily, F.L.S., F.G.S., M.R.I. A., &c. THE metropolis of Ireland is most favourably situated with regard to its position, its eastern extremity being bounded by the sea, to the north- east the peninsula of Howth forms the limit of Dublin Bay in that direction, to the south that of Kingstown and Dalkey ; south of Dublin the granite range of mountains are a conspicuous feature in the landscape. Of the igneous rocks, granite, the most important, is well displayed near Dublin, commencing about three miles south, extending in a south-westerly direction for a distance of twenty-nine miles to near New Ross, in the county of Wexford, with an average width of eight or ten miles, and a maximum, at one part, of eighteen miles. It forms the Dublin moun- tains, rising to an elevation of 1,763 feet from the sea-level, above the Three Rock Mountain at Fairy Castle. The lower hills, near the sea-coast, such as that of Killiney, are 480 feet, and Dalkey 472 feet, in height. The outline of this range shows a suc- cession of gently-undulating and rounded eminences, descending more rapidly towards the sea. In the adjoining county of Wicklow the mountains rise to a greater height ; Lugnaquillia, in the southern part of the county, being the highest, is 3,040 feet elevation, consisting of a mass of mica schist resting on the granite ; all the loftiest parts of the adjacent mountains are also composed of mica schist. The granite may be seen along the coast from Blackrock, south of Dublin, to Kingstown and Dalkey ; from the latter place it has a superficial breadth of about eight miles. From the quarries at Dalkey Hill was obtained the stone used in the con- struction of the harbour and piers at Kingstown, about 6,000,000 tons being used in the formation of the two breakwaters. A large quarry in the town of Kingstown was also extensively worked for mate- rial used in the construction of the harbour and piers at Kingstown ; other quarries have been opened on the eastern side of the Three Rock Mountain for supplying stone for building purposes and for flagging. The Killiney and Dalkey granite is coarsely crystalline, varying somewhat, however, in different places. The Rev. Dr. Haughton, F.R.S., &c, has fully described the Dublin and Wicklow granites in a memoir of the Lower Palaeozoic and associated Igneous rocks of the south-east of Ireland. ("Trans. Royal Irish Acad.," vol. xxiii., 1859, pp. 564, &c.) Veins of a closer and whiter texture, in which the mica is scarcely or not at all perceptible, are fre- quently found to traverse the granite of this district ; it is called Enrite, and is evidently intrusive ; occa- sionally it assumes larger dimensions than that of mere veins. Black mica (Lepidomelane) is not uncommon in this granite ; a remarkable plumose variety of white mica (Margarodite) has been found at Ballybrack. In the Dalkey quarries it is not unusual to find perfectly-formed crystals of black quartz in the joints ; fine crystals of Tourmaline are also occasionally met with in the granite of Dalkey, and the mineral called Killinite, from its having been found in the granite of Killiney and also at Dalkey. Metamorphic Rocks. — Mica schist, or altered Lower Silurian slates, these again blending into unaltered Lower Silurians, flank the granite from a point near Killiney to near New Ross, in the county of Wexford, spreading out, as shown on the southern boundary of sheet 121 of the Geological Survey maps to a breadth of over four miles. The junction of the Granite and Metamorphosed Slates is clearly observ- able along the sea-shore under Killiney Hill, at Roche's Hill, and to the west of Killiney Park ; in the road and railway cuttings of the neighbourhood ; as well as their metamorphism into mica schist, which often contains crystals of chiastolite. The manner in which the granite has been forced into the slates, penetrating them in wedge-shaped masses and veins, may be observed on the shore at this place. From the Killiney Hills a fine view of the Bay of Dublin, with Howth to the north and Bray Head south, may be seen. The Scalp, about two miles north of Enniskerry, and about three miles south of Carrickmines station, on the Dublin, Wicklow, and Wexford Railway, is a picturesque pass, the granitic rocks showing great erosion ; its junction with the mica schist may be readily observed. In the glen of the river Dargle, near Enniskerry i8o HARDWICKE'S SCIENCE-GOSSIP. Fig. 123. Navan. Alhhcn 'alhriggccn Skerries Lambay 1st. J o 000 > c o o 0000 a me or Chara aspera, send well- mounted Slide, or any of the following : — Cristatella inucedo, Plutnatella repeus, Hydra fusca, Ophrydium versatile, to M. H. Robson, 7, Clayton-street East, Newcastle-upon-Tyne. Side-blown Eggs for exchange, — Golden Plover, Ring Plover, Sandpiper, Curlew, Dunlin, Red-shank, Oyster- catcher, Tern, Grey Wagtail, and others. — J. Lancaster, 24, Prince's-street, Carlisle. An Injection Syringe and twelve parts of Science-Gossip for 1874, for well-mounted Slides, or offers. — A. Alletsee, 11, Foley-street, London, W. Will exchange Fossils (including sponge from the chalk) for British Birds' Eggs or Lepidoptera. — J. Wrangham, 93, Tyrvvhitt-road, London, S. E. Will give Parasite of Crow, or other insect preparations, mounted in balsam, in exchange for Diatoms, or Insect Eggs, mounted opaque. —J. Horn, 5, Belle-Vue-square, Scarboro'. London Catalogue, 7th edition. Nos. 41 and 1620 given in exchange for 44, 280, 346, 455, 392, 395, 495, 496, 484, 557, 615, 613, 626, 627, 676, 682, 683, 692, 706, 709, 749, 767, 768, 772, 826, 844, 851, 855. 895, 933, 1649, 1659, id64j 1665.— A. Wheldon, 8, Albion-street, Darlington. Wanted, autographs of celebrated English or Continental scientists, or letters. No signatures only, but letters, essays, treatises, or writings of interest. Particularly wanted, letters, &C, of J. J. Audubon the ornithologist. In exchange small specimens of our beautiful Emys picta, a turtle very suitable for Aquaria, or some of our native moths, or anything procurable by a collector here. For anatomists could procure Necturiis lateralis, our representative of the Mexican A.xolotl. — Address, Chas. Mann, 44, Lake-street, Chicago, 111. Send object of interest, with stamped addressed envelope, for packet of Eoraminfera from sponge sand, to E. W. Wilton, 1, Northfield-villas, Leeds. A few Silkworms (will soon spin) for other objects of interest, shells, fossils, &c. Please state how many required. — Mrs. Skilton, Brentford-end, Middlesex. Viola sepincola offered for 101, 156, 159, 467, 535, 544, 598, 855. 9°7t 95°. 9S4> 985, 1029,1059 c, 1115, 1133, 1194, 1212, 1286, 1295, 1319, 1453, 1655, 1672, L. Cat., Ed. 7.— \V. H. Beeby, 2, Outram-road, Addiscombe, Croydon. Orbiculina, from Bermuda, a beautiful object, well mounted, in exchange for other good slides.— J. Ford, Wood-view, Newbridge-crescent, Wolverhampton. sEcidium Urticie, sEc. Rauiatculacearum, and Pnccinia Malvacearum to exchange for other unmounted micro-fungi. — List to H. J. Roper, 5, Lausanne-road, Peckham S.E. For Snake's-head Coralline {Auguinaria spatulata), un- mounted, send stamped envelope and object of interest to W. H. Skan, 15, Brownlow-street, W.C. Wanted Slides or Material (Triceratium Diatoms) and Polyzoa tentacles extended, for well-mounted slides of Alyssum or HippopAae r/ia/uuoides. — E. W. Burgess, 35, Langham- street, London, W. First-class Micro-slides offered in exchange for live Water Beetles — Dyticus marginalh, Hydrous piceus, and Acilius sidcatus.— H. Vial, Crediton, Devon. A quantity of Cambridge Greensand Fossils in exchange for others, especially Crustaceans and Echinoderms. — John W. Carr, Union-terrace, Cambridge. Orchis incarnata and Liuuiu perennc for other rare plants. — John W. Carr, Union-terrace, Cambridge. I have a 4-joint Telescope, draws to 17 in., to exchange for Lepidoptera. — G. F. B., 23, Rosemary-street, Islington, N. 1 have eight numbers of Science for A 11 (from commence- ment up to present month), a capital stuffed squirrel, and good nests of Butcher-bird, Yellow-hammer, and Bullfinch. — Wanted, British birds' eggs, in sets, side-blown, Lepidoptera or store- box ; Natural History books; or offers. — W. Barrett Roue, 165, White-Ladies'-road, Bristol. Lond. Cat., Nos. 31, 102, 162, 183, 273, 277, 295, 296, 464, °34> 5i5. 560, 609, 865, 1013, 1053,1123, 1213,1276 1318, 1342 b, 1378, 1383. 1411. 1418, 1428, 1462, 1472, 1476, 1527, 1535, 1537, I538, 1556, 1641, 1657, 1661, and 1666, for 623. 626, 631, 637, 640, 647, 649, 657, 658, 663, 676, 691, 693, 698, 725, 733, 746, 747. 759. 772> 802, 826, 864, 870, 905, 938, 965, 975, and 1007.— Win. West, Chemist, Bradford. Well-mounted physiological specimens in return for any unmounted material of interest. — George Baker, 37, Cross- street, Islington, N. Send well-mounted slides of Foraminifera or Polariscopic objects for others, or mounting materials. List sent. — E. Atkins, 200, Essex-road, Islington, London. Wanted, Blackwall's " British Spiders," vol. ii., in exchange for Science-Gossip from the commencement, 12 vols., bound in cloth ; or cash. — Address, James Grant, care of Editor of Science-Gossip. Wanted, a pure and clean gathering of Volvox globator, (communicate before collecting). First-class slides in exchange. — E. Wheeler, 48, Tollington-road, Holloway, N. BOOKS, &c, RECEIVED. " West Yorkshire : An Account of its Geology, Botany, Sic." By J. W. Davies, F. L.S., and F. A. Lees, F.L.S. London: L. Reeve & Co. "The Physical System of the Universe." ByS. B. Skertchley, F.G.S. London : Dalby, Isbister, & Co. " The Creation of Moses and Science in Harmony." By the Rev. Dr. Stewart. London : Eliot Stock. " The House of Life." By Mrs. Miller. London : Chatto & Windus. " A Science Primer." By Dr. McVicar. London : W. Blackwood it Sons. " Phosphates in Nutrition." By M. F. Anderson. London : Bailliere & Co. " Science Made Easy." By Thos. Twining. London : Hard- wicke & Bogue. "A First Catechism of Botany." By John Gibbs. Chelms- ford : E. Durrant & Co. " Popular Science Review." July. " Land and Water." ,, " Chambers' Journal." ,, " The Country " (New York). June. " Familiar Science." ,, " Potter's American Monthly." ,, "Journal of Applied Science." July. &c. &c. &c. Communications received up to July Stii, from: — A. J. R. S.-T. H. C— J. W. C— J. C. A.-H. S.-C P.— F. W. S.— G. T.— J. S.— M. R. W.— C. L. B — T. W. D.— J. H. L.— J. C— J. A. K.-J. P. S.-A. B. M.— A. J. R. S.— J. F. R.— J. H. M.— E. E. E.— E. W. H.— Dr. R. B— C. P. -J. A. W. — E. W. W.-E. W. A.— J. B. B.— B. M. \V.— R. L. P.— C. M.-J. W. J.— J. T. G.— T. H. C — F. H. A.— Dr. J. S. H.-M. S.— W. H. L— W. H.— G. P.— G. S.— Prof. P.— A. J. R.-D. D.-F. A.— C. M. B.— B. K.— H. W. -S. C. S.— J. H.— W. W. I.— M. S.— J. W. S.— R. A. D.— W. E. R.— H. G. R.— W. B. R.— F. J. B.— G. S.— H. V.— W. H. S.— E. W. B.— J. C— W. S. S.-C. H. G.— W. C. C— A. P.— J. W. C— A. A.— G. F. B.-J. L.— J. W. -W. M. P. J. F. -T. W. B.— W. H. B.— R. S.— A. C— T. S. S.— H. J. I. L.-W. U. B. P.— T. H. C.-W. H. C.-M. H. R.— G. F. B — D. W.— J. C— R. W.— M. J. W.—J. P. G.-W. W. —J. I.— H. J. T.— E. A.-H. B.— G. B.— H. T. S.-Dr. E. de C— E. B. G.— &c. &C. HARDWICKE'S SCIENCE-GOSSIP. i93 NOTES ON CELERY AND OTHER SMALL SALADS, By H. G. GLASSPOOLE. ELERY {Apium graveo- Icns) belongs to the Umbellifene order of plants, and in its wild form is found growing in ditches and marshes near the sea, in Europe and in Britain, where it is known under the name of Smallage ; but in this state it is wholly unfit for food, having a peculiar coarse rank taste and smell, being considered poisonous to man, and is not even relished by animals. Cultivation, however, has transformed this suspicious plant into one of the most agreeable and wholesome of all our esculents. This species of Apium appears to have been known to the •ancients, for it was reckoned by them as one of the greater aperient roots, and Pliny states that it hath a peculiar virtue against the biting of venomous spiders. There is no account from which we can gather that the ancient Greeks and Romans were -acquainted with the method of bleaching this plant, and thus rendering it fit for food. By most of our old herbalists, it is mentioned under the name of Smallage, and only used by them as a medicinal plant. Gerard tells us that the leaves of it boiled in hog's-grease and made into the form of a poultice, taketh away the pain of whitlows on the fingers, and healeth them. Culpeper recommends that the juice ■of this plant, mixed with honey of roses and barley- water, be used as a gargle by those who suffer with sores and ulcers in the throat and mouth. Bartho- lomseus Lorn, in his " Botanologia," (published in 1 7 14), mentions that the roots and seeds of Apium were used medicinally in his day. This esculent appears to have been cultivated for the table at the early part of the seventeenth century, for John Ray, the celebrated botanist of that period, says that, if this plant is neglected, it will degenerate into its first unpalatable state. We are indebted to the Italians No. 165. for the method of its cultivation, and also for its name. Evelyn, in his " Acetaria " (published 1699), says " Sellery was formerly a stranger with us, and not very long since, in Italy itself." He tells us that it is not a distinct species of Smallage, or Macedonian parsley, though, by its frequent transplanting, somewhat more hot and generous, and sweeter-scented. We have, he says, " the best seeds from Italy, whose tender leaves and blanched stalks do well in our sallets, as likewise the slices of the whitened stems, which being crisp and short, first peeled and slit longwise, are eaten with vinegar, oil, salt, and pepper. And for its high and grateful taste is ever placed in the middle of the grand sallet, at our great men's tables and Pnetors' feasts, as the grace of the whole board." In our oldest seed-lists we find that two varieties of celery were introduced from Italy under the name of Red and White upright Italian celery. It is stated in the " Monthly Maga- zine and British Register," for July, 1797, that the seed of a new sort of celery, from the island of Samos, had been introduced into the county of Nor- folk, which grew to the height of three feet, and possessed other superior properties. Celery may be grown to a very large size, for Loudon states that, in 1815, a plant was taken up at Longford, near Man- chester, which weighed 9 lb. when washed, with the root and leaves still attached to it, and measured 4 feet 6 inches in height. It was of the red sort, perfectly solid, crisp, and firm, and remarkably well- flavoured. There is a variety of this plant called Celerica, or Turnip-rooted celery {Apium graveole its napazeum) ; it is more hardy than the upright varieties : of this the root is the only part used. It attains to a considerable size, especially in Germany, where it is . much esteemed, both prepared by itself and in con- junction with other herbs as a salad. It rarely forms an object of cultivation in English gardens. Sir Joseph Banks and Dr. Solander found in considerable quantities, on the coast of Terra del Fuego, wild celery, which appears to be possessed of wholesome K 194 HARD WI CKE 'S S CI EN CE-GO SSIP. qualities, as it was found a very useful ingredient in the soups for seamen, because of its antiscorbutic properties. Celery contains sugar, mucilage, starch, and a substance resembling manna sugar, which acts as a stimulant. A decoction made from the seed and drunk as tea is often recommended in some diseases by village herbalists. Celery is regarded as a lucky plant by the modern Greeks, and is hung up in rooms, placed on silkworm-frames, and given to children. The common name appears to have been derived from Italy, — sellari, under which it was introduced in the old seed-lists into this countiy, but it is found in old works, spelt in various ways ; thus, Sellery, Celeri, and Celery. The etymology of the botanical name, Apium, appears uncertain. Some authors think it is derived from the Celtic Apon, water, from the place where the plant grows ; others state it is from Apis, a bee, because these insects are fond of it. Celery has quite supplanted our native Alexander's (Smyrnium Olusatrum), which our forefathers used to eat as a common salad. Among other herbs which are sometimes to be found in the salad-bowl, are the various Valerianella, or Lamb's lettuce. The French call them Salade de pretre, from their being eaten in Lent. Evelyn says they certainly deserve a place among the penitential herbs, for the stomach that has admitted them is apt to cry peccavi. The leaves of Burnet (Poterium sanguisorba), when bruised, have the smell of cucum- ber : in former time this plant was in great repute. A small low thistle {Picridium vulgare), is often used in France and Italy, both as a salad and greens. Bon Jardinier says it tastes a little like mutton. The flower of the Judas-tree (Cercis siliquastrum) and leaves of the Wood-sorrel {Oxalis acelosella), when mixed with other herbs, give an agreeable acid flavour to the salad. Dr. Thomas K. Chambers, in the "Manual of Diet in Health and Disease," says, " Salads ought to form an important article of diet in every family. The salad ought to be dressed by one of the daughters of the house after she has dressed herself for dinner, singing, with her clean cool fingers, sharp silver knife, and wooden spoon — " Weaving spiders, come not here : Hence, you long-legged spinners, hence ; Beetles black, approach not near ; Worms nor snails, do no offence. " The purity of the salad-bowl is also of great im- portance. In the days of the Tudors the cooks were accustomed to mix their salads in a silver saladier, or some other vessel of metal which was affected by the chemical action of the acids so composing the mix- ture, and must have proved deleterious to those who partook of it. Evelyn, the great reformer in the art of salad-making in those days, says, the proper material for the salad-bowl should be porcelain, or of Holland delf-ware. We find in the writings of our old poets and dramatists allusions to salads, as is shown in the following conversation between Lafeu and the Clown in " All's Well that Ends Well ":— "Lafeu. 'Twas a good lady, 'twas a good lady; we may pick a thousand salads, ere we light on such another herb. Clown. Indeed, sir, she was the sweet marjoram of the salad, or rather herb of grace. Lafeu. They are not salad herbs, you know, they are nose herbs. Clown. I am no great Nebuchadnezzar, sir ; I have not much skill in grass." The author of the " Book about the Table " states that Poetry seized the dish to use it as an emblem of vernal freshness and greenness. Shakespeare's Cleopatra says — " My salad days, When I was green in judgment." Our forefathers were accustomed to introduce the salad into some of their wise and pithy sayings, for among our English proverbs we find the following : — "A fool can pick a sallet as well as a wise man." "He would live for aye, must eat sallet in May." The following is a translation of a Spanish proverb r " Four persons are wanted to make a good salad. A spendthrift for oil, a miser for vinegar, a coun- selor for salt, and a madman to stir all up." Dr. Doran, in his "Table Traits," tells us of a certain Frenchman who made his fortune by making salads for the aristocracy of England. Chevalier d'Albignac, one of the refugees which the great Revolution had cast on our hospitable shores, where he, like many of his unfortunate countrymen, contrived to subsist on a small pittance allowed him by the English Government, was one day dining with an affluent friend in the coffee-room of a fashionable hotel ; he took upon himself to make a salad, and the way he handled and mixed the preparation at- tracted the attention of a young nobleman who was- dining with another party in the same room. The nobleman approached the foreigner, and politely entreated him to mix a salad, French fashion, for his table. M. d'Albignac consented, and made such a one that put the four gentlemen into a state of un- controllable ecstasy. His complaisance and com- municativeness to the young nobleman and his friends had agreeable results, as they did not let the poor Frenchman depart without slipping into his hand a golden fee. A few days after M. d'Albignac received a letter from a certain lord, politely request- ing him to repair to his house in Grosvenor-square for the purpose of mixing a salad for a dinner-party he was about to give. The Chevalier obeyed the summons, and after performing his mission returned home, richer by ^"5 than when he went out. His marvellous salads were soon the talk of the town. The "gentleman salad-maker" was the hero of the hour, and ladies of the highest fashion, we are told, HARD WICKE'S S CIENCE ■ G O SSI P. *95 were heard rapturously commending his " works " in gilded salons, or avowing they could not live another week without devouring one of them. The lucky Frenchman was soon enabled to start his carriage, and might be seen driving from house to house during the dining hours of the aristocracy, attended by a servant, who carried a mahogany case, which contained the various ingredients for concocting his salads, according to the taste of his employers. He opened a shop, where he drove a lucrative trade in sauces and other culinary dainties. Being a prudent and saving man, he managed to realize some 80,000 francs, 60,000 of which he invested in government securities, which stood just then at 5° per cent., and with the other 20,000 he purchased a little estate at Limousin, where he spent the rest of his days en- joying his well-earned fortune. I conclude by introducing a Receipt for a Winter Salad, written many years ago, j at Castle Howard, by the Rev. Sydney Smith : — " Two large potatoes, passed through kitchen sieve, Unwonted softness to the salad give ; Of mordent mustard add a single spoon — Distrust the condiment which bites so soon ; But deem it not, thou man of herbs, a fault To add a double quantity of salt. Three times the spoon with oil of Lucca crown, And once with vinegar procured from town. True flavour needs it, and your poet begs The powdered yellow of two well-boiled eggs. Let onion atoms lurk within the bowl, And, scarce suspected, animate the whole. And lastly, on the flavoured compound toss A magic tea-spoon of anchovy sauce. Then though green turtle fails, though venison is tough, And ham and turkey are not boiled enough, Serenely full, the epicure may say, ' Fate cannot harm me — I have dined to-day.' " A HOLIDAY ROUND DORKING. LIKE most of those who are engaged during the day with the bustle of City life, we were anxiously looking forward to rest and quietude in the country, where we could throw off for a while the routine and formality of business, and enjoy that sense of freedom which only the lover of nature can appreciate. The longed-for time came at last, and after the usual amount of preparation we arrived at Cannon- street station, and were soon spinning away from dusty London into the more picturesque country. The sun was shining brightly into the carriage, and the atmosphere was anything but cool ; but we were in excellent spirits, and such weather led us to hope that we should spend a very happy holiday, being particularly suitable for our chief pastime, entomology. At length we arrived at Dorking sta- tion, and everything around looked bright and promising, as we got into the conveyance which was to take ourselves and luggage to the town. We con- tented ourselves for the remainder of the day with a general survey of the town, which presents the appearance of a thriving but quiet country place. We were greatly delighted on waking next morning to find that the weather promised to be a repetition of the day before. The first thing for us to do, after having enjoyed a good breakfast, was to settle in what direction we should go, as we were very anxious for the chase, and our nets and boxes were all in readiness. Leaving Dorking at ten, and not for- getting to fill our flasks with lime-juice, we took a friend's recommendation, and started off in the direction of Ranmer Common, distant about two miles. Just past the railway-station, South-Eastern Railway, we found a chalk-pit, and were not long in discovering that some sport was to be obtained therein. Getting over the railings a very bright-blue butterfly was seen ; the gauze soon enveloped him, and he turned out to be the Adonis, Clifden Blue. He was sadly battered, as it was quite a month late for him, so we gave him his freedom, and away he went, no doubt happy to be released from our clutches. No sooner had we done this than we noticed a dull-looking little insect tripping sharply along, and settling for a moment on the blue flowers that grew in the chalk. This we soon found to be Alsns, the Bedford Blue, and we were very pleased to find them in great plenty and very nice condition. After another parting look round the chalk-pit, and having beaten a few blackthorn bushes unsuccessfully, with the exception of taking one Jacoba, we went on our way to the road which leads to Ranmer Common. We had been told that parallel with the road was a grassy path, adjoining a very pretty estate called the Denbighs, and that we should very likely have some sport if we went that way, and, moreover, avoid the dust of the chalky road. Immediately we got into this path we noticed the intense contrast which the fresh foliage of the trees afforded from the dry chalk. On our left was a thick plantation of pine and fir- trees, and on our right a hawthorn hedge, separating us from the road, whilst peeping out from the grassy bank was an occasional patch of wild strawberry- plants, some in bloom, and others loaded with the pretty rosy-coloured fruit. This path soon widened into almost a glade, with a wonderful variety of herbage : blackthorn, whitethorn, juniper, clematis, privet, honeysuckle, and almost every imaginable kind of vegetation. The sun was now blazing forth, and we were out of the shade which the pines afforded ; moreover, insect life was swarming all around us. The two common skippers, Lima and Sylva7ins, were buzzing about in the utmost profusion ; the Meadow Brown, Mctgeria, was lazily flitting from one flower to the other, sometimes with that sombre quiet-looking butterfly, Hypcranthus, the Wood Ringlet ; every- thing seemed so quiet and happy, affording such a contrast to the noisy city which we had only the day before quitted. Soon we came to another plantation, and then sport began in real earnest. What is that flying round the top of the pines, and occasionally descending to within reach of the net? We strained K 2 196 HARDW1 CKE 'S S CIENCE ■ G 0 SSIP. our necks trying to capture one, and soon found it such hot work that our coats were off and satchels laid down, whilst F., who was not an entomologist, was not sorry to take a rest by seating himself on the stump of an old tree. Our nets had only got short walking-stick handles, so our chance of success seemed very small at first, more especially as there was a hollow between the path on which we stood, and the ground on which the plantation was situated ; if we made an extra effort in our excitement to Fig. 130. Underside Fig. 131. Clifden Blue (Lyarna Small Blue {Lyccena alsits).] adonis) upper side of male. Fig. 132. Small Skipper, female Fig. 133. Upper side of (Hesperia linea). Small Blue \L. alsus). Fig. 134. Large Skipper, Fig. 135. Small Skipper, male male (Hesperia sylvanus), {Hesperia linea.) Fig. 136. Large Skipper, female (Hysperia sylvanus . secure our prize, we were thrown from the path amongst the bushes below. But we were not thus to be disheartened, so taking a pull at our flasks, and wiping our perspiring faces, we again set to work. This sort of thing continued for nearly an hour, in which time we obtained about a dozen each of Pittiaria, and discovered that it was nearly time to return home, without reaching Ranmer after all. On looking around from the elevated position which we now occupied we were all struck with the marvellous view which presented itself. The railway lay in a valley, and on rising groun beyond stretched the well-wooded district around Leith Hill and Cold Harbour, and the contrast between the various kinds of vegetation was wonderful ; towering above all was Leith Hill itself, standing out boldly from the clear blue sky, while on the right of the railway could be seen the long ridge of hills in the direction of Guild- ford. Streams meandered here and there, and the Fig. 137. Upper side of Ringlet (Epinep/iik hyperaitthus). Fig. 138. Underside of Ringlet (Epinep/iik hyperantkus). Fig. 139. Under side of White Admiral (Limenitis sibylla ) Fig. 140. Upper side of White Admiral [Limenitis sibylla.) sun shining on them made them sparkle like dia- monds. We were indeed glad that we had come to Dorking, for we had never seen a finer piece of landscape before. Moreover, the intense heat, the cloudless sky, and the buzzing of the bees, gave a lazy look to everything around ; the cows in the HARD WICKE'S S CIENCE- G O SSI P. 197 adjacent meadow were swishing their tails and stamping their feet to release themselves from their summer pests, the flies, and we, too, found them by no means pleasing companions. Common, and accordingly made arrangements to have a late dinner. This time we took the road, on the right hand side of which was a stone wall, with a plantation above. Flying up and down this was Fig. 141. Bordered White, male {Fidonia fihiiaria). Fig. 142. Clay Triple-lines [sEphyra trilinearid). Fig. 143. Small Emerald {loin's vernarza). Fig. 145. Lace Border {Acidalia ornata). Fig. 144. Humming-Bird Hawk Moth {Macroglossa stcllataruiii). Fig. 146. Buff Arches {Gonophora derasd) Fig. 147. Fox-Moth {Bombyx Rubi). Fig. 148. Gold Swift [Hepialits fwctus). 149. Chalk Carpet {Eubolia bipunctatd). Fig. 150. Chalk Carpet {Melanippe procellatd). Fig. 151. B\ood-Ve'in{T/i/ia;idrai7mahzriii). Fig. 152. Bird's Wing {Dipterygia pinastri). *"~?^/.firi ft Fig. 153. The Gold Spot {Plusia fiducte). In the afternoon we went for a drive to Shiere, a village about half-way between Dorking and Guild- ford, which we enjoyed very much, after having had a good tea, and partaken very freely of strawberries, which the landlord had just gathered from his garden. The next day we determined to reach Ranmer Stellatarum, the Humming-bird Hawk-moth. It j gave us a rare chase, with no success, so we made up our minds we would hurry on towards the Common. On arriving at the end of the road, and unfastening 1 the gate, we found ourselves on a large tract of wood- ' land and common, which seemed to invite us to more i98 HARD Wl CAGE'S S CIENCE . G OSS IE. closely examine it, which we accordingly did, and set off down a long glade, which made us think it should be called a wood rather than a common. The trees were chiefly oak, with an undergrowth of bramble, honeysuckle, and blackthorn, and on going a little farther in, we came upon a magnificent group of wild foxgloves, all in full bloom, and some of them as much as seven feet high. What was that large golden butterfly which just flew over our heads? exclaimed J, It must be Papkia, and sure enough it was, for no sooner had we spoken than back he came, and settled on a bramble, right in front of us, flapping his wings in the sunshine as if making fun at us. For a moment we were speechless with plea- sure and admiration, for this was the first time we had seen any of the large Fritillaries on the wing. Then quickly raising his net without letting the shadow intervene, J. gave a swift stroke over, and the silver- washed Fritillary was safely in his net. We did not have to wait long before seeing several others as we went farther down the glade ; they all flew very swiftly, and appeared very fresh on the wing, it being only the second week in July. After we had obtained about half-a-dozen each, and having captured a few Tliec. quercus flying round the oaks, together with some Trilinearia, which we beat out of some beeches, we resolved to try the old wall again, and return to the Common next day. On our way back we man- aged to capture three Stellatarum, and then we turned into the grassy path before mentioned. In one of the fields the grass was particularly high, and we thought it not unlikely something might turn up in it. We soon found that we were to be rewarded for our trouble, for we obtained about twenty of that delicate little geometer, A. oruata, and also dis- covered^. Galathea in the neighbourhood. We espied the first one, seated on a thistle-head, evidently only just emerged from the chrysalis. This was a very agreeable surprise, as we had neither of us taken Galathea before. We took as many as we wanted, and then lay down under the shade of a yew-tree, and watched them bobbing up and down in the long grass. Whilst dreamily passing the time in this way, suddenly something whizzed by like a great bee, and then back again, circling round the meadow in a very giddy way ; then it seemed as if making straight for me, so getting my net in readiness, with a swift sweep, I secured it. What could it be ? It buzzed up and down the net with great vehemence, and I was very anxious to see it safely bottled in the cyanide. When this was done we found that we had captured B. rubi, the Fox-moth, and a very hot chase we had for the other two we secured. We also took a few specimens of Cory don, but it was rather early for them, and we knew that each day would make them more plentiful. In the evening, by beating the neighbouring bushes, we obtained A. ornata, emarginata, amataria vemaria, and procellata. The whole of the week was just as fine as our first day, and on looking over our diaries, we had captured one Sybilla, one Syriu- ga?-ia, seven Albieillata, about twenty Imitaria, and nine Adippe, and we could have taken as many Galathea, Paphia, Corydon, and Alsits as we cared for, not to mention the swarms of Burnet moths and commoner butterflies which frequented every meadow. We tried sugar, but with no success, but by dusking and beating, we had obtained Chrysitis, Urticce, Derasa, Pinastri, Fidvata, Pyraliata, Didymata, Albitlata, Rubidata, Trilinearia, and several other geometers, whilst, settled on thistle-heads in the day- time, we took a few specimens of Conigera. We had during the week paid a visit to Box Hill, and very much we enjoyed the cool shade afforded by the copious foliage. On arriving at the top a very extensive view is presented, stretching right away to the downs of Sussex, the marvellous variety of woods, rivers, and villages, forming a panorama beyond description. Height 800 feet. So far we had had wonderful weather, not a drop of rain had fallen, and the same bright prospect was- before us when Monday morning came, and we decided to go for a walk in Betchworth Park, about a mile distant from Dorking on the Reigate Road, in which is a magnificent avenue of lime-trees, and we were told that had we come a month earlier we should have found the scent of the bloom almost overpowering. The river Mole runs through the park. It is a dull-looking stream, moderately wide here and narrow there, deep here and very shallow there. I think most of the fish to be obtained in it are tench, carp, eels, &c, those kinds which frequent muddy still streams. But although the water itself is not very inviting, the scenery along its banks is very pic- turesque, especially at this particular spot, where the foliage of the park sometimes forms quite a bower over the water. After walking through the park we came out again into the road, and then across some corn-fields in the direction of Box Hill, on climbing the sides of which we were greatly delighted to again find our friends the wild strawberries in plenty, with which we regaled ourselves for some little time, thus we worked round to Burford Bridge, and then home along the road to Dorking. In the afternoon we went for a drive to the Holm- wood, a large tract of common and forest land, south of Dorking, on the Horsham Road, where a camp was being held, the white canvas of the tents stand- ing out boldly against the green of the forest, whilst about every hundred yards we went we came upon a fresh batch of geese, which always greeted us with a quack ! quack ! or hizz ! hizz ! In all our rambles on the commons we met with these con- sequential creatures, who seemed as if they were enjoying themselves while they had the chance. On we went until we arrived at Ockley, and then back along quiet country lanes by Abinger and Wotton- HARD WICKE >S S CIENCE - G O SSI P. 199 The nut-bushes seemed loaded with the young nuts, and the banks covered with a profusion of ferns ; moreover the woods and meadows adjoining Leith Hill seemed to present an unusually fresh appearance for the time of year. In the evening we tried sugaring in the Glory, a wood almost in Dorking, leading on to the Holmwood ; it was, however, no good, but on our way back, flying over the corn, we could have taken as many as we wanted of Palleus, besides the following insects by dusking, Hectits, Ocellata, Sambncata, Thymiaria, Albicillata, and Adustata, and flying round an old wall we discovered Perla in plenty. The next day we again went to Ranmer, on our way turning out swarms of Bipunctata from every bank. We went down our old glade until we came to a spot where the wood had only latterly been cleared, and which abounded in thistles, teasles, nettles, &c. We sat down for a minute or two to rest, and found that we had discovered a regular stronghold for Paphia. They came sailing over our heads and settled on the tallest thistles, and then off again to exercise their wings. This sort of amusement we very much enjoyed ; we also took several specimens of G. rhamni, and I had the good fortune to take a battered specimen of Sibylla. We then went through a gate into a sort of plantation, with waste ground on the right ; every fresh step we took turning out a lot of wild rabbits, which were on the path enjoying themselves in the sunshine. On this waste land was a great deal of ragwort, and on inspecting the same we found several larva; of yacoba, in fact on going a little further the ragwort heads were quite tinted with their orange-coloured bodies. Here we also saw a specimen of Aglaia, but we were not able to get near him, a few T. querciis only rewarding us. During the week we came several times to the common, and always found some new employment in walking along the glades, sometimes under the shade of the oaks, sometimes penetrating into the thick, and getting ourselves nicely pricked with the brambles, listening to the song of the thrush or blackbird, sometimes hearing the melancholy Coo ! Coo ! of the ringdoves, or pausing to catch the distant sound of Cuckoo ! Cuckoo ! All these delights are only to be realized, they cannot be recorded. Our next visit was to Leith Hill, five miles distant from Dorking, which was particularly enjoyable. We walked to Cold Harbour through wooded lanes, in which the trees sometimes met, forming a beau- tifully-shaded walk, and being exceedingly pic- turesque and romantic. Here we had some lunch, and then commenced to ascend the hill. The path is very rough, especially for a pony, which we saw pluckily struggling up. The sides of the hill are covered with a growth of bracken and furze, with an occasional plantation of young fir-trees. On arriving at the top and going up into the tower, a magnificent view presents itself ; and it is said that on a clear day twelve counties are visible. We could distinctly see without the aid of a glass the clump of trees at Chanctonbury Ring, near Worthing. A few children were scattered here and there gathering the whortle- berries which grow on the hill, and from which they say a very delicious jelly is made. Leith Hill is 993 ft. above the sea-level, and is the highest eleva- tion in this part of the country. Like everything else, this sort of thing was not to last for ever, as the time was quickly passing on, and rapidly bringing our holiday to a close ; so we resolved to have a good turn at collecting for the two or three remaining days. During this time Colias Edusa had been coming out in plenty, and we captured as many as we wanted, flying over the lucerne fields near the railway-station, and amongst them were fortunate enough to come across two Helice. I also took one Ochroleicca settled on a thistle-head. We obtained moreover Cardui and Rhamni in fair abundance, besides turning out Semele on the dry hill-sides. If we had only had good sugaring we should have had a very successful holiday in an entomological point of view, for novices like ourselves ; but we were far from discontented, as the lovely weather and variety of the country would require a very peculiar indi- vidual not to appreciate. Our only regret was that we had got through the time allotted to us ; and it was with somewhat of chagrin that we said adieu to the shady woods and open meadows, and returned once more to our usual vocation, a great deal the better both in mind and body for our fort- night's holiday. A. J. R. LIVE TOADS IN LIMESTONE ROCKS. I HAVE lately been working geologically among the culm-measure limestones of North Devon, and there I heard the oft-repeated story of a live toad having been disinterred from the solid rock. Un- fortunately it was an event of the past, and I did not see either the toad or the rock from which he came. But I can testify to the good faith and general in- telligence of my informant, who assures me that he saw the toad, which had just been wantonly crushed by the quarrymen, and that he also saw the mass of rock which had been cleft, and the cavity in which the toad had been. He further assures me that the rock was perfectly solid, without flaw, joint, or per- foration of any kind leading to the cavity. He has no reason to think that the quarrymen intended to deceive him, and he himself evidently intends faith- fully to describe what occurred. At about the same time that this information was given me, a similar case was reported to me from the limestone near Totnes, in South Devon. In this instance the quarryman who saw the toad taken from the rock has been well-known to me for years as a steady honest man of superior intelligence. But here again I was not an eye-witness, and can only repeat 200 HARD W1CKE 'S SCIENCE- G OSSIP. what I am told. I am, however, firmly convinced that the man himself fully believes what he reports. Concurrent testimony, if sought, would be obtained from many independent sources, and yet I find that scientific men are generally disposed to treat such stories with simple incredulity. But surely the phenomenon is worth investigation. No British jury would believe that the quarrymen in all parts of Eng- land were leagued together to impose upon the public ; nor would any man of science believe that the toads were really imbedded in homogeneous rock. Until a better solution can be offered, I may venture to suggest the following : — It is well-known that all limestone rocks abound in fissures and joints, which may be and often are filled up with angular debris. At Westleigh, in North Devon, there are many thick beds of breccia alter- nating with highly inclined and vertical strata, the breccia being just as hard and serviceable as the stratified rock. In some cases where the cementing carbonate of lime has not been coloured,* the two varieties of rock might not be distinguished at first sight, even by a geologist, still less by an ordinary observer. These breccias may be of any post-car- boniferous age, and may be still in the process of formation. We have then only to imagine our toad to have accidentally or purposely got into a fissure, and to have there found himself in what (from a batrachian point of view), we may call comfortable quarters. There, being of a phlegmatic temperament and of sedentary habits, he stood (or rather squatted) his ground, indifferent to the angular fragments which, from time to time, fell around him. Like Horace's " Vir Justus ac tenax propositi," of whom it is further said, " Si fractus illabitur orbis Impavidum ferient ruinre," so he also was not shaken in his sense of tenant's right by the "wreck of matter" which, in the form of rock-debris, threatened his cranium. Dripping water bearing carbonate of lime by degrees would change his home into a prison, cementing the congeries into the semblance of homogeneous rock. How long a toad might live under such conditions, I do not venture to conjecture, but the many instances of modern conglomerates, and the stalactites which rapidly collect under newly-built bridges, would argue that the process of forming such a breccia as I have described need not necessarily have occupied many years. I submit, at least, that the independent testi- mony of quarrymen from many places remote from each other ought not to be set down as mere inven- tion or exaggeration, but should be accounted for as above, or upon some better hypothesis, if such can be suggested. W. Downes. Kentispcaic, near Colhtmpton. * It is generally coloured red, owing to the proximity of Triassic rocks. THE BIRTH OF A ROTIFER. THE water from which my Rotifer was taken had been standing for some months in one of the marine tanks at the Brighton Aquarium, and was filled with dead mussels. The body, which was sur- rounded by a single row of filaments, resembled a Paramecium, but was longer and not so broad. The head was blunt, and was beset with strong cilia, amongst which were three or four long fila- ments. This part of the animalcule was sack -like, and a broad sinus formed the mouth, which was fringed with cilia smaller than those at the margin of the head. A row of globules, about thirteen in number, commencing from near the mouth, extended the whole length of the body, within which could be traced three distinct bulbous sacks, connected by alimentary canals ; near the posterior extremity a single dark spot was observed. Fig. 154. First appearance of Rotifer. Fig. 155. Rotifer in act of emitting young. The integument was marked with a fine series of horizontal lines. The animalcule had a peculiar mode of feeding. It first rubbed its gelatinous body against a mass of vegetable matter with which it happened to come in contact, to disintegrate it, as it were, and then pushed its head amongst the debris, grovelling like a pig, and using its cilia to draw the particles into its mouth. On moving the stage, another of the species was brought into the field. The upper part of the head was shrunken and dead, and was almost separated from the body ; but round the lower part of the gullet the cilia were in rapid motion. The other part of the body was perfectly quiescent, even to the filaments, and was compressed and colourless. About midway down the Rotifer, a slight swelling commenced, which gradually increased. It then burst, and a violent disruption took place, which resembled a mimic Vesuvius. A jet of water issued from the orifice, followed by six minute, pellu- cid, oval creatures. Their motion was at first very sluggish, but they soon gained sufficient vital energy to prove beyond all doubt that they were endowed with life. The young lingered over the body of the mother HARDWICKE'S SCIENCE-GOSSIP. 20I for some time, and then, joining a community of atoms no larger than themselves, were lost beyond all identification. The vortex round the head of the parent ceased. The animal slowly dissolved through- out its entire length ; and, in a few seconds, became one indistinguishable mass of inanimate matter. Having fulfilled its mission, it ceased to exist, leaving nothing but the integument, which retained its pristine outline. John Davis. TERATOLOGY OF A CABBAGE-LEAF. A CORRESPONDENT has kindly forwarded to us a specimen of cabbage-leaf, showing one of the most peculiar malformations we have seen. Fig. 156. Malformation of Cabbage-leaf: two-thirds nat. size. The midrib of the leaf has become detached about an inch from the base, and exists as a separate stalk, exactly simulating an ordinary flower-stalk. Meantime the true leaf only just shows in its vena- tion the place where the midrib ought to be, whilst the laminae of the leaf are abbreviated so that the stalk extends nearly a couple of inches beyond the apex. At the summit of the stalk (or detached mid- rib) the lamince have again grown, but the two external edges have been fused together in growth, so as to present the appearance of a gamosepalous calyx. We have shown the specimen to several botanists, who had not the slightest idea of its being a malformed cabbage-leaf. The accompanying sketch by Mr. J. W. Buck, B.Sc, is two-thirds the natural size of the specimen. On page 113 of "Vegetable Teratology," Dr. Masters figures and describes a similar malformation in a lettuce-leaf, and mentions the cabbage-leaf as occasionally liable to malforma- tions of this kind. The fruit of the rose, he remarks, is only the dilated end of the flower-stalk, in which the true carpels become imbedded. "Between such a case and that of a peltate leaf with a depressed centre, such as often occurs to some extent in ATehan- bium, there is but little difference." These mal- formations thus throw interesting sidelights, not only on the origin of such pseudo-syncarpous fruits as the rose, but also on the peculiar leaves of Sarracenia, Cephalolns, Aristolochia, and others. HOW TO START A NATURAL HISTORY SOCIETY. WE have repeatedly been applied to for in- formation how one or two individuals fond of natural science should proceed in starting or founding a society for the furtherance of its study. We have had some experience in this matter, and can honestly say we know of few organizations which may be made so mutually helpful or so socially plea- sant for such a small outlay of money. What Mrs. Glass said of the hare is true of societies of this kind. You must first catch one or two people interested in some department of natural science. There are few towns or districts in Great Britain now where there does not reside some one who is a Fellow of one of the learned societies, and who has so far won his spurs. Such an one is generally willing to act as president, and to throw the weight of his influence into the scheme. The secretary should always be selected on account of the greater interest he takes in science, for we regard a good secretary as really more useful to a society than a president. The meetings of a young society should not be held too often, or there will soon be a dearth of papers. Once a month, in the winter, is quite often enough ; and one paper only each night, the rest of the evening being taken up with discussion. It is a good practice to encourage members to bring something at every meeting for exhibition — something which strikes them as singular, and which they do not under- stand. This practice causes members to look out for objects, and develops the observing faculties. It is also useful in raising discussions and oral descrip- tions at meetings, and perhaps, eventually, in origi- nating papers. >02 HARD Wl CKE *S S C1ENCE - G O SSI P. New societies should not aim too high. Let them accept papers on any subject connected with natural history, and endeavour to raise good discussions on them. The subscription fee should not be too much — never more than half-a-crown or five shillings a-year, or the pocket will affect the members. We have in- variably found the most prosperous societies and clubs those which charged the smallest subscriptions. In almost every village, to say nothing of towns, there would be little difficulty in hiring, or even in obtain- ing free, some school-room, either in connection with church or chapel. Indeed, numerously attended churches and chapels have started scientific clubs of their own, so beneficial has it been found to found a society that will find intellectual work for young men. The rules of a young club should be as few and simple as possible, and as free from penal clauses. At first, it would be as well to think of nothing but mutual instruction in scientific matters. Afterwards, the careful study and cataloguing of the plants, insects, birds, fossils, &c, of the neighbour- hood might be considered. Some very young societies are ambitious early to appear in print, and to publish their own "Trans- actions" or "Proceedings." This is well enough when there is anything really worth publishing, but even then there are plenty of magazines willing to publish such papers, and able to give them a wider publicity than they could have obtained locally. Young societies soon find printing and publishing very expensive, and it is frequently a source of vexa- tion to the members. This matter, therefore, should be left out of consideration when it is intended to start a new society. If there be any surplus money, let it be spent in purchasing such high-priced stan- dard books or magazines as would perhaps be beyond the pockets of many members, and these could be circulated in the usual manner. We have known successful instances of members specially combining to circulate such books among themselves, in addi- tion to any which might be obtainable from the society's library. The summer excursions should not be numerous —not more than two or three during the season. Half a day will be often found long enough to do a great deal of real good work in. If the society limits its members to the male sex, there is no reason why they should not enjoy the pleasure of ladies during the summer excursions. To con- clude, the chief things to be considered are, (i) earnest study (no matter by how few, for the numbers will increase if the original members can only "learn to labour and to wait") ; (2) an absence of any pretension to intellectual superiority ; (3) an endeavour to make the membership as cheap and inexclusive as possible, so as to throw the society open to all classes — the only specification being a love for scientific subjects, even if there be not always the means or the opportunity to cherish it. "BRUCE," THE MANCHESTER FIRE HORSE. AT the latter part of the spring of 1864 " Our Bruce " was born ; he soon began to show signs of a very promising hunter, of over sixteen hands, and in due course commenced his training for the chase. At five years old he had grown to a beautiful animal, very docile and tractive — his mottled grey coat the pride of the groom and the admiration of his master. "Our Bruce," in the hunting-field, once stumbled, and, in consequence, lost the con- fidence of his master, who disposed of him to the Manchester Carriage Company. In the early part of the year 1870, he was sold by the Carriage Com- pany to the Manchester Corporation for the fire- engine department, and commenced his duties on the 24th March. His general appearance, and kind, tractable, willing ways were soon noticed by the firemen, and in less than a month after he joined the brigade he was the favourite of the whole estab- lishment, having pretty well the free run of the yard, in which he caused much diversion by his singular and funny ways. He was always full of innocent mischief, and one of his greatest delights was to chase the men about the yard. It sometimes hap- pened that he was let out for a gambol when the children were playing. On such occasions it was most interesting to notice how careful he was in not going too near them. At other times, when the engines were in the yard, he seemed not to forget his early training as a hunter, and would amuse him- self by jumping over the poles. When tired, lie would lift the latch of the door and go into his stable, and just as easily, after a rest, when the stable- door was closed, he would let himself out again, or knock loudly at the door to attract attention. Near the stable-door there is a water-tap with a revolving handle. "Our Brace " would turn the handle with ease and help himself to a drink. It sometimes happened that a hose-pipe would be attached to the tap ; this would not cause him the least inconvenience ; in such a case, after turning on the tap, he would lift up the end of the hose-pipe with 'his teeth and hold the end in his mouth until he had satisfied his thirst. Many curious anecdotes could be told about our pet : how on one occasion he picked up the end of the hose and wetted one of the firemen who had offended him ; how, at a fire, he would stand amidst the greatest noise and excitement, with showers of sparks falling around him, and on his beautiful coat, only to be shook off ; and at other times completely enveloped in smoke ; but there was no shying or fretting under fire or smoke with "Our Brace." He seemed to know that he had brought those who would fight that ruthless tyrant fire, and he stood proud and confident that before long he would return home with the victors, when, after being refreshed and groomed, he would again be ready, always first, for the next " turn out." HA RD WICKE 'S S CIENCE- G OS SIP. 203 For nearly six years "Our Bruce" never missed going with the first machine, at the end of which time he was, in consequence of his fine appearance, and our desire to give him a less active duty in his old age, transferred from the fire-engine to police- patrol duty; We did not altogether lose our faith- ful animal's services, for one of his duties was to attend fires with the mounted police-sergeant (whose name was also Bruce) to keep back the onlookers, which he most effectually did for nearly two years, during which time he was as great a favourite with the policemen, rarely leaving a police-station without an apple, a piece of bread, or some mark of affection. On the 7th of June " Our Bruce " fell sick ; the veterinary surgeon was sent for, who pronounced him suffering from inflammation of the bowels. The usual remedies were applied, and everything was done to relieve his pain and make him comfortable, but to no avail. For three days afterwards he was never left for a moment, night nor day, and at the end of the third day he drew his last breath, surrounded by those who loved him well, and who had been taken by him to the scene of many a hard fight. A post- mortem examination was held the following morning to ascertain the cause of death. A stone (calculus) six inches in diameter, weighing five pounds eleven ounces, was taken from his bowels. This was, no doubt, the principal cause of the disease which led to the death of the fire horse, " Our Bruce." Chief Fire Station, Manchester. A. Tozer. BRAMBLES ABOUT LONDON. By Dr. E. De Crespigny, Author of "A London Flora." "In the days when we went blackberrying, A long time ago," WE knew that blackberries were distinct from dewberries, and no more : happier in our ignorance then, than we now are in our knowledge, that there are blackberries and blackberries ; and that Rulnis pmticosus represents an aggregate of forty species, regarded by collectors as distinct, besides varieties. Of these, twenty-eight species are classed as occurring in the home counties, province III. of the " Cybele Brit. " (see Compendium) ; but to what extent they severally prevail there are at present no records to show. Something, therefore, might be attempted towards ascertaining the range, compar- ative frequency, and particular habitats of the more uncommon kinds, assuming that the ordinary forms are generally distributed. The difficulty is not so much in being able to find them, as in the ability to appreciate the small and inconstant shades of difference by which many of them are to be distinguished, not only from each other, but also from intermediate forms or variations ; because, placed as all are now on the common footing of separate species, we are no longer at liberty to assign any values to the difference between what were formerly considered species and what sub-species; added to which there is, com- paring the London Catalogue with the books, no little confusion with regard to nomenclature. The difficulties in the way of correct diagnosis is only lessened to a certain extent by arranging the species into groups or sections ; for unfortunately the lines of demarkation are by no means distinctly defined, and in doubtful cases we are at a loss for fixed rules by which we may be guided in determining to which of the sections our specimen should be referred. Brambles are arranged in sections as follows : — i. Suberecti ; ii. Ccesii ; iii. Glandulosi ; iv. Villi- caules ; v. Nitidi. I. Suberecti : type, R. suberectus. This, found in boggy woods, is a northern plant, and is nearest the raspberry, R. IJaus, in habit ; it is not found near London, but R. plicatus occurs in Tilgate Forest, near Tunbridge Wells, and R. affinis has been re- ported from Epping Forest. We have not met with either species ; they may be known by their suberect, slender, terete stems, furnished with a few weak uniform prickles, and glabrous leaflets, which are often arranged in a sub-pinnate manner ; that is to say, the terminal leaflets are either ternate with two pair of basal leaflets, or they arequinate with a single pairs of basal leaflets, but there is no continuity between the sets. Another characteristic of the group is a distinct white border to the margins of the sepals. II. C.esii. Subsection a : type, R. ccesius. We venture to suggest that the proper position of this group is next in order to the preceding one ; with which subsection a has very much in common. R. arsiits may be regarded as a trailing form of suberectus. They are much alike in flowers and fruit, besides other points. R. ccFsius is readily diagnosed, but when met with in its more robust form it may some- times be mistaken for corylifolius. There are several varieties : tenuis, ulmifolius, &c. The stems are usually very slender, terete, and glaucous, furnished with many slender unequal prickles ; leaves ternate, terminal one often lobed ; sepals setose, and clasping the glaucous few-grained fruit. Plentiful by the banks of the Thames about Kingston, and in one form or another not unfrequent on damp, shady ditch - banks, which are seldom cleared or trimmed, at a little distance from the environs. It grows also by the Bave stream in the hollow W. of Wimbledon Common. Subsection^: type, R. corylifolius. This is a very common and also a very variable plant. Its characteristics, however, are so well marked that it can seldom be mistaken for a bramble of any other section. The stems are terete, although strong young shoots are sometimes obscurely angled ; smooth, of a greenish subglaucous hue, somewhat rufous when old, furnished with uniform weak prickles and a few subsessile glands ; generally 204 HARD WICKE'S SCIENCE- G OSS IP. prostrate when unsupported ; the leaflets are broad, doubly dentate, serrate, or biserrated, and remark- ably imbricated, owing to the lateral pair being sub- sessile, and the basal ones entirely so ; rugose above, pubescent below;* sepals ovate and tomentose ; petals rotund white, sometimes pale blush (in pur- pureas they are pinkish) ; the panicle always corym- bose ; its flowering is both early and prolonged. It are somewhat elliptical. They may be found on damp shady places and ditch-banks. We have gathered them in a lane between the "Spaniards" (Hamp- stead Heath) and Hendon. III. Glandulosi. This section will also admit of subdivision, a. Transition of the prickles into aciculce, seta, and hairs, abrupt ; that is to say, the prickles are clearly distinct from the other appen- Fig. 157. Portion of stem and trans- verse section of Rubus ccesiits. Fig. 158. Ditto of R. cerylifolius. Fig. 159. Ditto of R. glandulosus. m. Fig. 160. Ditto of ./v. rudis. Fig. 161. Ditto of R. umbrosus. Fig. 162. Ditto of R. kochleri. Fig. 163. Ditto of R. discolor. is a common hedge bramble about London. On the Finchley-road, near the station, for instance, and in the lanes leading to Willesden, it is plentiful. The leaves are often ternate by abortion ; that is to say, the lateral pair are two-lobed, a peculiarity by no means confined to this species. R. Balfourianus and R. althaifolius are straggling forms belonging to this section, with large flat leaves, usually ternate, and large arsius-like flowers. In althaifolius, the leaves * The pubescence of the under surface of the leaflets is seated on the veins ; even when glabrous below th; principal veins are never quite free from hairs. In brambles with strong arching stems, such as the nitidi and larger species of glandulosi and villicaules, the veins and pedicels are also furnished with small hooked prickles. dages ; type, R. glandulosus. Stems subterete, trailing when unsupported ; of a dingy dark-greenish or dark-red hue ; prickles small, straight, weak ; aciculre, seta?, and hairs copious ; leaves dull and green, slightly pubescent below ; leaflets ternate, rarely quinate ; of a rhomboidal or ovate form, with biserrated margins ; sepals very glandular and fur- nished with a long acumen ; petals narrow, white or pale blush ; the panicle broad-topped ; pedicels very slender, prickly, and glandular. Frequent in hedges, in the lanes and roadsides about London. R. Gun- tha-i is a form of it with large, flat, thin, dark green leaves ; leaflets ternate ; straggling, decumbent, less prickly stem, and a long, open, leafy, few-flowered HARD WICKES SCIENCE- G OSSIP. 205 panicle ; petals similar, but sepals without the long ' beneath, with coarsely serrated jagged margins ; acumen of glandulosus. It grows in shady places ; shorter panicle ; pink petals and sepals furnished abundantly by the palings, northern border of Bentley with rather broad, leafy points ; the prickles are Priory, Harrow Weald. A'. radula : not frequent in hedgerows ; more generally on the borders of copses in upland situations : on the outskirts of Harrow Weald Common and Pinner Woods, for in. Fig. 164. Portion of stem and transverse section of R. rhamnifolius. Fig. 165. Leaflet of R. coryli/olius. stance. Stems arching, angular, of a dark, purplish hue ; prickles strong (or rather, slender, from a strong broad base), nearly equal, patent ; setae and aciculte short, numerous ; hairs few ; leaflets dull green, paler beneath ; obovate, acuminate, narrow below, sharply and moderately dentate ; sepals ovate, re- flexed ; petals white, obovate ; the panicle is rather long, with lanceolate leaves and short corymbose branches ; the prickles of the rachis are remarkably deflexed. R. rudis differs from the above in having much narrower leaflets, of an elliptical form, felted Fig, 166. Leaflet of R. glandulosus. Fig. 167. Ditto of R. umbrosits. conical and slightly deflected. It is of less frequent occurrence than R. radnla. We have gathered it on Harrow Weald Common. It is probably not very rare. R. hystrix : this is a trailing 206 HARDWICKE'S SCIENCE -GOSSIP. bramble, with angular prickly stems of a light red colour, abundantly furnished with aciculae, &c, all shorter than the prickles ; the leaflets are of a light grass-green colour, finely serrated and of an oval form ; panicle in shape, like that of radula ; rachis wavy ; petals obovate, pinkish ; sepals lanceolate, with a long, leafy point. Rare : outskirts of Worm- 169. Ditto of if. discolor. . 170. Leaf of R. ccvsius. ley Wood, Broxbourne. Allied to this is R. pallidas (or rosaceus), also a trailing but more prostrate bramble than hystrix ; with bright red stems, and leaves of a lighter green and of a different shape ; leaflets obovate acuminate, the terminal one some- what cordate ; the panicle simple and racemose ; petals white ; sepals ovate, not leaf-pointed. Harrow Weald Common. On Hampstead Heath and on the sandy heaths adjoining the Basingstoke Canal there is a trailing bramble, with an open panicle of pink flowers, remarkably leafy, pointed sepals, and leaflets green on both sides, which would seem to be R. blffxami* The stems are much less setose than in any other species of this section. /'. T/ansilion of prickles into aciczdce, seta, and hairs, gradual. Type, R. Kahtevi. — Stems trailing, terete ; abundantly furnished with prickles aciculae, setae, and hairs of unequal lengths : this bramble is not very common ; at any rate, we have only gathered it in Broxbourne woods : the prickles are slender and patent ; the leaflets obovate, coarsely dentate, and scarcely acuminate ; somewhat cuneate ; pale green beneath and hairy on the veins ; panicle, with short leafy corymbose branches ; sepals ovate, attenuated, and reflexed from the fruit ; petals white, obovate. R. fusco-ater differs considerably from the preceding plant : it occurs sparingly on Harrow Weald Com- mon, and is equally unfrequent. The stems are dark purple, bluntly angular, and prickles declining ; the leaves ovate acuminate, the basal ones oval ; the toothing of the margins subpatent on the stem leaves, finely serrate on those of the flowering branches ; leaflets coriaceous, rugose, dull green above, paler below ; the panicle long, leafy, narrow, with very short few-flowered branches ; rachis wavy ; petals pinkish, obovate ; sepals ovate acuminate, reflexed ; thickly beset with dark purple setae. R. nemorosus, or dumetorum [dvuersifolius of the London Catalogue), is a form of corylifolius intermediate with this section and the cccsii. The leaves are variable, of the same character as regards imbrication, but the stems, and especially the rachis pedicels and sepals, are abun- dantly furnished with setae ; the petals, however, are obovate and not contiguous ; not narrow, as in R. glandulostis ; and the sepals not furnished with a long acumen, as in that species. It is also of frequent occurrence in hedges. [To be continued.) THE LAND AND FRESHWATER SHELLS OF TASMANIA. By W. F. Petterd. ALTHOUGH the descriptions of many species of the Conchological Fauna of Tasmania have appeared scattered through various scientific publications, I do not think a brief and condensed sketch of what is up to the present known concerning the land and freshwater shells of this island will be altogether an unacceptable contribution to the columns of Science-Gossip, for I feel assured it must number many among its readers that take an interest in Conchology. My design in writing the present paper is not to enter into elaborate and ex- haustive details of the description and distribution of the various species, but to give a general idea of the land and freshwater shells of this far-off land. Tas- mania is situated about 120 miles south of the south- eastern corner of the Australian continent ; it is 165 miles average length and 155 average breadth, and, exclusive of adjacent small and numerous islands and indentations, has about 700 miles of a coast-line HARD WICKES SCIENCE- G OS SIP. 207 of diversified aspect, often rugged in the extreme, their beautiful snow-white sands stretching for miles. It is watered by numerous streams, which meander through its wild mountain-ranges and undulating hills that intersect the island, mostly covered with dense vegetation of gigantic trees and almost im- penetrable undergrowth. These natural barriers and the physical character of the island, by dividing it into districts, may to some extent account for the extremely restricted localization of many of the species of land and freshwater shells, which is very marked and noticeable to the conchologist, although the disper- sion of animal life in the other departments of zoology is not so generally restricted. The marine species have received much attention, and the richness of the Tasmanian coasts is well known among the lovers of nature, comprising, among its numerous members, some of the most gorgeous and attractive of the collector's cabinet. Among the number may be mentioned Cyprceaovida umbilkata, Valuta fusi- formis, V. manulla, V. papulosa, V. Sclateri, and V.Augasi, with the beautiful Venus lamellata, Tryonia viargaritifera, Phasianella Australis, and many others of equally attractive appearance. Recently many new species have been described in the Proceedings of the Royal Society of Tasmania, mostly from dredging operations on the coast, comprising species of genera hitherto unrecorded from this island, and some even from Australia. They include new species of Murex, Trophon, Ranella, Siphonalia, Dentalium, Gibbula, Cyclostretna, Scissurella, Margmella, Comes, Pleurotoma, Columbella, Conionella, Styloptygma, Stylifer, Rissoa, Mytilus, Gouldia, Kellia, Macro- schisma, Turbonilla, Clanculus, Diloma, Daphnella, Fustts, T'riforis, Nalica, Crossea, Liolia, Acmcca, Callista, Myadora, Gasterochana, and a new Aslele, a genus of Swainson's, described by that talented naturalist when in Tasmania, in the Proc. Royal Society of Tasmania for 1854. The land shells of Tasmania have received a fair share of attention from Australian scientists, ^and numerous species have been described by Dr. Cox and Mr. Brazier. The former, in his monograph of Australian land shells, enumerates twenty-two species as from Tasmania ; the latter gentleman has many descriptions in Proc. Zoological Soc. of London (vide Proc. for June, 1870, &c), and a general cata- logue was published by Mr. Legrand, in 187 1, of all the sorts known up to that year. Since then several additional have been described in the Proc. Linnean Society of New South Wales, and Proc. Royal Society of Tasmania. The number of de- scribed species now known is eighty-seven, dis- tributed in the following genera : Bulimics 2 ; Vitrina 2 ; Succinea 2 ; Truncaiella I ; and Helix 80 ; and during my last collecting tour in the northern portion of the island I obtained twenty-two additional species, seven Helices, which are as yet undescribed. The Helices are strikingly different from those of the mainland of Australia, although I have collected several undescribed species in Victoria with a some- what general resemblance to some of the Tasmanian species ; nevertheless, the general characteristic difference is very distinct and noticeable. The number of species, more especially of the smaller forms, is surprising, particularly when it is taken into con- sideration that but a very small portion of the island has been searched for land-shells, for the workers in natural history are extremely few in number. I have never, to my recollection, collected in a fresh locality without finding one or more new species, which is certainly a great stimulus for further investigation in this attractive department of science, so that we may reasonably anticipate a great augmen- tation in their number as the unsearched localities are worked up. Among the most remai-kable sorts may be men- tioned Helix Launcestouensis, Reese, a fine large and unique form, of a black colour, with a broad yellow band on the under surface. It is confined to the dense myrtle forests in the north-eastern portion of the island, where it is comparatively plentiful about decaying vegetable debris. Helix lampra, Pfr., a pretty glossy wild chestnut shell, found generally distributed along the northern coast-line. Helix lamproides, Cox, which reaches occasionally the size of //. Launcestouensis, and is possibly the H. bisulcata of Pfeiffer. Helix dispar, Brazier, is the only species recorded with a tooth in the interior of the aperture, either from this island or Australia. Helix vitrinaformis, Cox, a curious form dis- covered by myself on Mount Wellington, with a peculiar Vitrina-like appearance, and Helix Weldii, Tenison Woods (Proc. Royal Soc. of Tasmania, 1877), a'very interesting minute shell from Circular Head, as it is the only reversed Helix recorded from Australasia. The majority of the remainder com- prise a group of small Helices very different from those of any other part of the world, of which only three species have been ascertained with any cer- tainty to be common both to the mainland and Tasmania; viz., H. Sydneyensis, Cox, which is abundant in cellars and such-like places in Sydney, New South Wales ; Auckland, New Zealand ; and similar localities in Launceston and Hobart Town. It may possibly be the European H. cellaria, intro- duced by some means. H. Alexandra; Cox, which is abundant in gardens about Sydney, New South Wales, and like localities around Hobart Town. This I consider the acclimatized H. costala of Europe. The other is H. Norti, Cox, which is generally distributed through Southern Australia, and may have been brought over by accident with plants, or by some such means. The identification of this species is somewhat doubtful, for I think, upon careful examination, the Tasmanian specimens will prove to be a distinct species. 208 HARDWICKE'S SCIENCE-GOSSIP. Of the Bulimi, B. Dufresnii, Leach, is an unique form, distantly represented by B. Angasianus, Pfr., in Australia. It is widely distributed, and varies much in general coloration and size. The larger specimens are found in the dense jungle, and the smaller dwarf varieties in the more open and dry parts. B. Tasmantcus, Pfr., is allied to B. Kingi, Gray, of King George's Sound. It is distributed around the northern and eastern coasts, always near the sea, clustering on trees and rocks, almost invariably in considerable abundance. Vitritia Milligani, Pfr., is one of the finest species of the genus ; it is of a beautiful shiny black colour, and is truly the gem of the land shells of the island, for its remarkable colour and size render it very attractive. It represents in Tasmania H. attramen- tasia of Victoria, Australia, and H. Busbyi of New Zealand. The animal is of a bright and showy red colour. It is confined to the western portion of the island, where it is tolerably plentiful in the dense fern scrubs, particularly about the Duck River. V. Verreanxi, Pfr., the only other species, is gene- rally distributed, aud reaches a somewhat large size in favourable localities. I obtained a species in Gibb's- land, Victoria, bearing a close resemblance to this shell. Like the land species, the fresh-water are very local in their distribution, almost every creek and mountain-stream affording a distinct species. The Rev. J. T. Woods, in a paper read before the Royal Society of Tasmania, enumerated 32 species ; that is to say, 28 univalves and 4 bivalves, belonging to the following genera: — Physa, 12; Limnea, 4; By- thinea, 7 ; Ancyhts, 2 ; Pomiatopsis, I ; Planorbis, I ; Assiminm, 1 ; Unio, 1 ; Pisidium, 2 ; Cyclas, 1. More recently he has described a species each of the genera Valvata and Ampitllaria. Mr. Brazier, in the Pro. Linnean Society of New South Wales for 1876, describes two species, which he places in the genus Amnicola, — A.Petterdiana and ,4. Simsoniana, and he has also described, in the Pro. Zoological Society of Londonz two species which he assigns to the genus Pahtdestrina. The Physa and Limnea are of the ordinary forms, having mostly close representatives in the mainland of Australia ; and the same may be said of the re- mainder, with the exception of two, viz., the Ancylus, A.Cumingianus, Bourgingnat, a remarkably fine and pretty species, — in fact, the finest of the genus known up to the present time. It is peculiar to the Upper Derwent River, in the southern portion of the island, and is without doubt the most remarkable and inte- resting of the fresh-water shells of Tasmania. The other is a small shell, which the Rev. J. T. Woods has placed in the genus Ampullaria, to which genus it very doubtfully belongs, for, in all probability, upon close examination of the animal, it will be found to require a sub-genus, if not an entirely new genus, for its reception. The specimens were col- lected in a creek on the northern coast of the island. Several species still remain undescribed, and no doubt, as further investigation proceeds, many more novelties will be brought to light in this highly inte- resting portion of natural science ; as it is, the number of species now known is great for its comparative small size. Still, much remains to be done before we shall have a complete and exhaustive knowledge of the land and fresh-water shells of Tasmania. Should this short and rough sketch prove of interest to the readers of Science-Gossip, I shall be only too happy to contribute something more concerning the conchology of Australasia. MICROSCOPY, An Improved Wax Cell. — The following plan of mounting in wax is a modification of that sug- gested by Professor H. L. Smith, of New York (Science-Gossip, December, 1876). To my mind it possesses two great advantages over that of the professor, being cheaper and more easily accom- plished. Into the centre of a clean glass slip place one of Pumphrey's vulcanite rings, and into this put a few chips of white wax ; then hold the slip over the flame of a spirit-lamp until the wax is melted, and set aside to cool, taking care that the ring does not slide out of position. When well set the wax will be found to have formed a capital cell on the inside of the ring, and to have filled up the angle formed by the outside of the ring and the glass slip. This form is meant essentially for opaque objects, but it can be easily made available for transparent mounts by placing the slide upon the turntable, and with a broad-pointed scalpel turning out the centre of the wax cell. An exceedingly neat opaque mount is made by filling up this central space with asphalte or other black varnish whilst it rests on the turn- table. To fix the cover-glass, rub the end of a piece of warm wax round the upper surface of the vulcanite ring, when sufficient will be found to adhere for the purpose; place the cover in position, and pass a heated iron round the edge, and the whole process is complete. In this way a great many objects may be mounted, ready for the cabinet, at a single sitting, which for neatness, durability, and sim- plicity of construction are unrivalled. — H. C. Crew, Net her ton. Quekett Microscopical Club. — The 13th annual meeting of this flourishing society was held at University College on July 26th, Hemy Lee,. Esq., F.L.S., President, in the chair. The report of the committee briefly reviewed the work of the past year, and congratulated the members upon the con- tinued prosperity of the club in every department of its work. A large number of books had been added to HARD WICKE'S SCIENCE- G OSSIP. 209 the library, 185 slides had been presented to the cabinet, the meetings had been well attended, and many valuable and interesting papers had been read. 49 new members had been added to the list during the year, making the present number 562. The treasurer's statement of account was also presented to the meeting, and showed the satisfactory balance in hand of £106.1 3s. 5th The president then delivered the customary annual address, taking for his subject "The commercial application of the microscope," in the course of which many interesting instances were cited to show how the skilful application of the microscope had proved of great value in the settle- ment of important questions of social and commercial interest. Much good counsel was also given to the members as to the future usefulness of the club, and a well-merited tribute was paid to the honorary secre- tary, members of the committee, and officers, to whose efficient discharge of their various duties so much of their success was due. Votes of thanks were unanimously passed to the president and officers of the society for their services during the past year, also to the council of University College for continued per- mission to meet in that building ; and an announcement that a donation from the funds of the club of twenty pounds had been voted towards the building fund now being raised for enlarging the college, was received with cheers. Some further interest was also excited by the presentation of a valuable gold watch to Mr. R. T. Lewis, as a mark of appreciation of his services as honorary reporter since 1866. Dr. Harkness, of San Francisco, having been introduced to the meeting as a distinguished foreign visitor, was requested to con- vey the greeting of the club to the microscopical society of San Francisco, and briefly acknowledged the compliment on behalf of himself and his colleagues. The result of the ballot for officers and council for the ensuing year was as follows :— President, Professor Huxley ; Vice-Presidents, Dr. Matthews, Messrs. Henry Lee, C. Stewart, and T. C. White ; Trea- surer, Mr. Gay ; Secretary, Mr. Ingpen ; Foreign Secretary, Dr. M. C. Cooke ; and to fill four vacancies on the committee, Messrs. F. Crisp, A. D. Michael, E. T. Newton, and F. Oxley. A Theoretical Limit to the Apertures of Microscopical Objectives.— At a recent meeting of the Royal Microscopical Society, Professor Stokes read a paper on the above subject, in which he showed that theoretically a pencil of rays from a radiant in glass (or under equivalent conditions) of 1800 could be refracted by a single refraction at a spherical surface so as to present to the second lens a pencil of about 8l° free from spherical aberration ; and, while not asserting the possibility of utilising the whole of the pencil of 1800 in glass, he thought a very large part of it might be available in a practical construction,— a far larger part than can be used in dry lenses. ZOOLOGY. Birds' Eggs in Wrong Nests.— The circum- stance mentioned by Mr. Sharpe in the number for July must be veiy unusual. Last year, on May 9th, I found a blackbird's nest with three blackbird's eggs and a thrush's ; the blackbird was sitting, but I do not know if they were hatched off. In April, 1873, I found a coot's nest near St. Albans with seven coot's eggs and one moorhen's. On going again a few days afterwards I found an eighth coot's egg and a second moorhen's, with the coot sitting on them. These are the only instances I can recollect to have met with of one species of bird laying in another nest, besides the ordinary custom of the cuckoo, during several years' experience of birds'-nesting. Single eggs of various birds, partridges, thrushes, and black- birds, more especially, are frequently found dropped on the ground, probably either because the bird has not finished its nest in time, or else because its nest has been torn out. In pulling out an old partridge's nest some years ago, from which all the young birds had run (by the way it was, as I should say they usually are, rather elaborately concocted of dead leaves, grass, &c.) ; in the materials I found an egg which had evidently been laid while the nest was in making, and had been covered up so effectually by the lining that it was addled. I have also a red- start's egg which my brother found in a corner of an old tree, between the trunk and a branch, where it had evidently been dropped for lack of a nest. Very probably the starlings not having a nest of their own ready, made use of their neighbour's from the same cause.— A. F. Griffith, Cambridge. Appearance of Papilio Machaon.— On the 25th of June, 1876, the weather was warm and fine. At noon on that day P. Machaon made its appearance out of the pupa ; the wings were developing at the time. Another machaon emerged from the pupa just before 8 a.m. on the 25th June 1878; its wings were fully developed ; the weather was warm and fine. Both imagos emerged on the same day of the same- month in different years. This may be of interest to those who notice the influence of insects. The usual month for its appearance is May.— R. A. Dent. Testacella Haliotoidea I have lately found in considerable abundance in my garden ; they are generally found whilst turning up the ground. The nearest recorded locality I believe to be Taunton, in Somerset. I have some in confinement, and have been watching their habits, which are very interesting. — H. T. Johnston-Lavis, Stalbridge, Dorset. BOTANY. The Pronunciation of Scientific Names.— Cordially agreeing with the principles laid down by Mr. Charles Browne, I only write once more on this subject with reference to three names mentioned by him. 2IO HARD WICKE 'S SCIENCE - G OSS I P. — Veronica, Clematis, and Gladiolus. Not presuming to give an opinion as to the origin of the legend and name, or name and legend, of the saint who bears a name derived from the Latin vera and the Greek eikon, I venture to think it highly probable that, as a plant-name, Veronica is simply a corruption of Betonica, and is therefore rightly accentuated on_the second syllable. Clematis is now rapidly giving place to the more natural, as well as the more accu- rate, Clematis. Gladiolus is no worse than Gladiolus. The probably classical alternative, Gladjolus, does not seem to occur to the ordinary gardener's ear. — G. S. Boulger. Notes on Silene inflata. — Is it commonly known that this widely-distributed plant is di-, if not tri-, morphous ? On Wednesday evening, the 1 2th June, I was forced to seek shelter beneath a tall hedge from one of those not very seasonable storms that were this year so disagreeably characterising this month. Amusing myself by examining various flowers within my reach, I was struck with the apparent fact that there were two well-marked forms of the common Catchfly. In one form the three styles (sometimes 4, sometimes 5) projected fully \ from the tube of corolla, no stamens being visible. A closer exami- nation showed that the stamens were present, but that their filaments were extremely short, seldom much exceeding the average in length ; and, more remarkable still, that the anthers were contabescent, i.e., dry and shrivelled, containing no pollen. In the other form the stamens projected \, while the styles were rarely visible. On pulling to pieces these flowers, however, the styles were found more or less closely oppressed, and evidently quite immature. Further examination showed that this form was decidedly proterandrous ; for, though the stamens suc- cessively arrive at maturity, commencing with those on the under side, all the anthers have shed their pollen before the styles are fully grown. At this time they are largely exserted, and have their receptive stigmas widely spreading. I have since passed many hundreds of plants in review, and find these two forms about equally distributed in this district, and wonderfully persistent in the characters mentioned. There does not appear to be any other striking points of difference between them, so far as I can at present determine. The first form is evidently to all intents and purposes always female ; the second, first male and then female. I found a very few plants in which the presence of a few dry anthers (the rest being per- fect) seemed to indicate a transition stage between the two. Fertilization must, I think, be brought about by a small dipterous fly, but how is not very clear. Its common name of Catchfly is fully justified, as any one may see who will take the trouble to examine a number of plants in the earlier part of the day. Almost every flower will then have a tenant. I applied to Dr. Morton, who informs me that Sir John Lubbock quotes Axell, to the effect that there are three forms, one with stamens only, another with pistils only, and yet a third with both stamens and pistil. This scarcely agrees with my observations on British specimens. If it be correct with regard to con- tinental species, it is highly interesting as showing that the modification in them has proceeded much further than in ours, and along a somewhat different line, as I can find no tendency to the production of purely male plants in ours. — J. Hepworth, Rochester. Variability of Colour in Hollyhocks. — In the autumn of 1873 I picked up a spike, or rather stem, of a hollyhock, with ripe seeds, which had been thrown on a heap of rubbish where it was customary to dispose of the refuse of neighbouring gardens. It was kept through the winter, and then the seeds on it were sown in a row in which the seeds from the lower part of the spike were sown at one end, those at the upper part at the other end, and the others between them in positions corresponding with those they occupied on the plant. When they had come up I took one, as from the lower part of the spike, and planted by itself, and another from the uppermost part and planted by itself, in perhaps a better situa- tion. These two plants flowered in 1875. The one which grew from a seed produced on the upper part of the parent stem was rather stronger in growth and earlier in flowering than the other, which I attributed to its more favourable situation ; for I find that holly- hocks are very much affected by circumstances. This earliest flowering plant had blossoms of a crim- son red, those of the other were of a much darker colour. The plant with crimson blossoms was the one from which I took the seed which I sowed in 1876, putting in the ground the seeds from each flower separately as well as I could, — though I cannot be perfectly sure there was no error, as a few seeds fell out of their places on the ground. The plants, however, which came up in irregular places I de- stroyed, that I might ensure as much accuracy as possible. I had expected a difference in habit among plants raised from seeds proceeding from different parts of the inflorescence, but did not think of colour. Of two plants from seeds at the bottom of the spike, one was left on the seed-bed, where it is now alive, having made no attempt to flower. This seems to show the necessity for planting out seedling hollyhocks in order to their becoming vigorous. The other which I planted out in 1S77, flowered, as did also four plants from seeds taken from a lateral spike which sprung from the. same stem. The seedling plant from the spike of the main stem produced crimson flowers, like those of its parent ; the plants from seeds on the lateral spike were white, with only so much of a reddish tint as to indicate their parentage. Not having much ground at my disposal, I did not take heed of the seedlings from the middle of the spike, but planted out nine grown from the seeds yielded by one of the uppermost flowers. Seeds from the upper- most flowers of all, which were hardly ripened, ger- HARDWICKE'S SCIENCE-GOSSIP. 211 minated, but the plants had not vital force enough to live through the summer. The nine which I transplanted did not flower till this year, and they have not all flowered now. Three of them are like the one from the lower part of the spike one is much darker, and with many a blossom, having six petals. The plants from the lateral spike having all white flowers, that those from the main spike should pre- sent this richer colour, is what I did not expect. I suppose the variability displayed in this instance may be dependent on the fact that the parent plant from which the seeds were gathered was itself derived from a seed on the upper part of a stem. But there is one plant whose flowers are yet unopened ; and from what I can make out by examining the bud, it seems as if its flowers would be white. This is so inexplicable as to make me examine my memory as to the possibility of errors, but I trust you will believe me that I cannot imagine any source of error as to the seeds being those of the same plant, and so far as I have reason to believe, four plants with crimson flowers, one with rather lighter, two with deeper, richer colour, and one whose blossoms will also spring from seeds proceeding from the same flower. I enclose flowers, the two white being of plants from seeds on the lateral spike, the others from the main spike, the most diverse from one of the upper flowers ; the one from the lowest flower undistinguishable from three others. — John Gibbs. How to grow Filmy Ferns. — A writer in The Garden gives the following interesting instructions. Any one interested in these most beautiful of ferns may grow them successfully without covering them with bell-glasses or keeping them in warm houses. In confirmation of this we may refer to a houseful of them in the Boxhill Nursery. It is of small dimen- sions and sunk in the ground, so that the eaves of the roof, which is of octagon shape, are only just above the surface. It is entered by means of rustic steps through a narrow span-roofed house, in which hardy British ferns are growing amongst virgin cork. The inside of the Filmy Fern-house is lined in the first place with old railway sleepers, placed in an upright position, and which support the roof. These are covered with virgin cork, on which are growing various kinds of ferns. The Filmy varieties consist of fine specimens of Trichomanes. Radicans, Todca Superba, T. Pdlucida, and others are growing in pots or pans placed on a bank raised three feet or so above the ground-floor, and extending all round the house, excepting at the doorway. The side walls are built with rough stones, among which grow club- mosses and small ferns. A canvas shading under the roof is left there summer and winter, but no means are provided for heating the house artificially. Inside it is easily kept damp and close, and under such conditions Filmy Ferns grow remarkably well, both in summer and winter. Dimorphism in the Rubiace^e. — Mr. C. B. Clarke, in a paper on this subject read before the Linnoean Society, shows that there are two kinds of dimorphism in the RubiaceiE. The group is known to be largely dimorphic, the variations consisting chiefly in the lengths of the style and stamens. Mr. Clarke's two forms of dimorphism are as follows : — I. Where the point of insertion of the stamens is altered, being situate in one form high above the middle of the corolla tube, and in another form at the base of the corolla tube. 2. Where there are two kinds of fruit, one corresponding to a sessile flower, and another to a peduncled flower. "Flowers, their Origin, Shapes, Per- fumes, and Colours." By J. E. Taylor,F.L.S., &c. A second edition of this work has already been called for, and has just been published. The author has corrected various errors which almost un- avoidably creep into a work of this kind, touching as it does on such a multiplicity of subjects. An American edition has also been prepai-ed and sent over. The rapidity with which this book has gone off, whilst gratifying to the author, is a sure token of the widespread interest taken by the public in the leading scientific questions of the day. Botanical Notes. — Arum italiatm. — This plant as many of your readers are aware, is much more abundant than Macidatum in Jersey, and, I believe, Guernsey. Orobanche major and Linum perenne. — Can your correspondent, C. Parkinson, inform me if the specimens of O. major, " parasitical on ivy," and Linum perenne," in field," noticed in Isle of Wight, have been verified, as the undoubted occurrence of these plants would be interesting? — G. C. Druce. GEOLOGY, The Physical History of the English Lake- district. — This was the subject of a paper read by Mr. J. Clifton Ward, F.G.S., in which the authortraces the physical history of the Lake-district from the com- mencement of the period when the Skiddaw slate was deposited. To this succeeded the volcanic Borrowdale series, which is followed, after a physical break, by the Coniston Limestone. Between this and the succeeding Silurian deposits there is little, if any, break. Thus, in the Lake-district, the break between Upper and Lower Silurian is physically below the Coniston Limestone, though palseontologi- cally it is above it. The Old Red Sandstone period was one of denudation, which was continued into the Carboniferous period ; and perhaps the whole district was actually covered by the sea during the maximum depression of the Lower Carboniferous epoch. Since then it has probably never been sub- merged, but exposed to continuous subaerial denu- dation. The physical significance of the Mell Fell (Lower Carboniferous) conglomerates received special 212 HARD WICKE 'S S CIENCE - G OS SIP. attention. The author then, from consideration of the amount of deposition and rate of denudation, attempts to estimate the period which has elapsed since the commencement of the record, and sets it down as 62,000,000 of years. The author then considers the age of the Skiddaw slates. From litho- logical resemblances he is led to correlate the Skiddaw grit with the basement grit in the Welsh Arenig series, and thus to regard the beds below the grit as the equivalent of the Tremadoc, and perhaps of part of the Lingula Flags. The palasontological evidence for the correspondence of the Arenig series with the whole of the Skiddaw slates rests chiefly on Grapto- lites and Trilobites. The author holds that the evidence from the former is inconclusive, and that from the latter to some extent contradictory, so that the physical evidence can in no way be overridden by it. StromATOPORA and Loftusia. — Principal Dawson has contributed a statement of his views as to the nature of these problematical fossils from the palreozoic rocks, which are commonly known as Stromatopora. They are massive fossils, often showing concentric structures when weathered, and have been referred by different writers to the corals, to the Hydroida as allied to Hydractinia, and to the Foraminifera. Principal Dawson says that Strotna- topora is " a calcareous, non-spicular body, composed of continuous concentric porous lamina;, thickened with supplemental deposit, and connected by vertical pillars, most of which are solid " ; and he maintains his old opinion, that " Stromatopora is a foraminiferal organism and the paleozoic representative of the Laurentian Eozoon." Norwich Geological Society. — We have re- ceived Part I. of the " Proceedings " of this old- established society, containing a list of all the papers read before the society since its foundation in 1864, and abstract of papers read during the recent session. Ancient Man.— Mr. Thomas Belt, F.G.S., the well-known naturalist, has made the interesting dis- covery of a human skull in the section of a railway cutting in the neighbourhood of Denver, Colorado. The skull was imbedded in perfectly undisturbed ground, at about three feet and a half from the sur- face. Neither the lower jaw nor any other bones were found with the skull. Fossil Saurians from the Cape. — Mr. Thomas Bain, F.G.S., the well-known African traveller and geologist, has just sent home a splendid collection of fossil Saurians, many of which are new to science, tind which have been found in the carboniferous and triassic formations of Cape Colony. They include skulls and other remains of DicynoJon, Galcosaunts, Cynodracon, Oudcnodon, &c. The Coralline Crag.— Dr. Gwyn Jeffreys, in a communication to the Linnrean Society, on some shells dredged in the Korean straits, said that of fourteen species enumerated, six are now, for the first time, found living in the North Pacific as well as the Atlantic. Micinella ovalis and Kcllia pumila, which had been supposed to be extinct, are shown to be living in the Korean region. No fewer than nine of the above fourteen species are Coralline crag fossils. Dr. Jeffreys holds that these facts support his view, that Mollusca common to the North Atlantic and North Pacific Oceans may have originated in high northern latitudes and have found their way to Japan on the one side and Europe on the other, by means of the bifurcation of the great Arctic current. Our Water Supplies.— Mr. De Ranee has re- cently read a paper, " On the Palaeozoic and Secondary Rocks of England as a Source of Water Supply for Towns andDistricts, " before the Manchester Geological Society. The paper contains much useful informa- tion on a subject growing every year more important, inasmuch as the demand for water increases, while springs and rivers do not increase. Instances are given which show how vast are the underground stores of water within the region occupied by the rocks above-named. A spring at Barrow-in-Furness yields, from a depth of two hundred and fifty feet, thirteen thousand five hundred gallons of water daily. Nearly three million gallons a day are pumped from a single well at Liverpool. Three- fourths of the seven million five hundred thousand gallons supplied daily to Birmingham is got from wells in the New Red Sandstone, and the water is described as of a uniformly excellent quality, and the Perry Well as one of the best waters for dietetic and domestic pur- poses ever inspected. Kidderminster has deep wells, one of which gives one hundred thousand gallons a day, and yet the present domestic supply is entirely derived from dangerously polluted shallow wells and streams. NOTES AND QUERIES. Double Egg. — Last year a friend brought me two hen's-eggs which were joined together in a very curious manner. The shell was continued at the apices in the form of a tube connecting the two eggs, about i in. long and \ in. thick. It formed ap- parently a perfect communication, being filled with albumen. The eggs had the appearance of leaning one against the other, one being quite depressed where the other came in contact with it, which was about a quarter of an inch below the points of junc- tion. I may mention that the shells of the eggs were very imperfect, be;ng almost soft in some places. — G. M. Doc, Torrington. Fungus on Flies. — I have seen a somewhat similar instance to that mentioned by Mr. E. Wheeler, but with this difference, that the flies so affected seemed to be confined to one particular plant. The plant was withered and dried, and the flies (several dozens) were stuck about it in all directions, and in very natural attitudes. I was not at that time botanist or dipterist enough to identify either the plant or the I insects, but the latter were very similar in appearance HARD WICKE 'S SCIENCE - G OSSIP. 213 to the Yellow Dung-fly (S. stercorarius). They appeared to be all of one species. — IF. H. Warner^ Standlake. Book on Dragon-flies, &c— Can any reader of Science-Gossip inform me of a work on the British LibelluLv (or Dragon-flies) giving plain and satisfactory descriptions of each species ? The price must be moderate. Also of a similar work on the British Ants.— W. H. Warner. Bees and Paint.— In answer to Mr. Smith's query on this point I must confess my utter inability to assign any probable cause for his bees' apparent fondness for paint— my sole reason for replying to his question being to draw attention to another curious penchant of bees, viz., their partiality for smoke. In early spring, when engaged in gardening operations, I have often noticed the few bees out at that time hovering about the weed fires, and endeavouring to penetrate into them, even when the thick dense smoke has been issuing in volumes from the fires. This proceeding has often puzzled me exceedingly. The genial warmth given out by the fires is doubtless the attraction.— ^F. H. Warner, Standlake. Cuckoo (Cttculus canorus. )— Towards the middle of July I caught in the garden (within two miles of the centre of Birmingham) a young cuckoo. It flew i into the greenhouse, and was there caught. I sup- : pose that the bird was enticed by the great quantity of magpie moths with which the kitchen-garden swarmed, so much so that (much as I disapprove of killing creatures uselessly) I destroyed over fifty cater- pillars in twenty minutes, and have caught in a net almost as many perfect insects in the same time. As I have never seen a cuckoo similar to this one before I give below measurements and general description :— Extreme length from tip of bill to end of tail, \i\ inches; length of wing, 9A inches; spread, 20 inches; third primary, 74 inches ; tarsus, f inch ; and tibia, i± inches. The plumage was dark iron-grey, except primaries and secondaries, which were of usual colour barred with " rufus." The barrings of throat as in the adult bird, but with a great tendency to very dark brownish-grey, so as to appear at a little distance to be almost black. Tail, greyish-black, with "rufus" markings on inner webs. Iris, dark hazel-brown ; cere, very light lemon-yellow. Upper mandible of bill, hair-brown ; lower mandible, lighter brown at tip ; suffused with light-yellow gape ; and inside of mouth as usual, orange ; legs and toes, light lemon-yellow, suffused with pink. — G. T. B. Dittany.— Your June issue contains a request preferred by Henry F. Bailey, for information re- specting "the name of the species of Dittany." It is an American plant, and is described in Professor Asa Gray's " Manual of Botany." It belongs to the Mint Family (Labiat.e). The Common Dittany is Cumla Mariana. It blooms, with us, from fitly to September. Gray affirms that the Latin name is of "unknown origin." The Mandrake is also an American plant {Podophyllum peltatum). It is a member of the Barberry family (Berberidacea), and is the well-known Podophyllum of the Pharmacopoeia, so valuable a specific in complaints of the liver. We read, Genesis xxx. 14, that " Reuben went in the days of wheat harvest, and found mandrakes in the field." This, I need scarcely add, is an older quota- tion than any that can be culled from the works of "our early poets," referred to by Mr. Bailey.— V. dementi. Vanessa Antiopa.— \Y. R. Morse inserts a query respecting the Vanessa Antiopa. This is one of our commonest Butterflies. There is no doubt that our specimens have a yellow margin to their wings. At the same time West wood, to whose beautiful work I refer your correspondent, says that the margin of the English specimens is "of a white or -whitish colour"; also that "the pale margin of the wings varies to deepish yellow." I was under the impres- sion that this handsome butterfly had become extinct in England. — V. Clementi. COLIAS. — The Colzas mentioned by C. E. B. Hewitt is a very common butterfly in Canada, and may be frequently seen, in larg- numbers, fluttering over ram-puddles on our roads, or settling on their margin. This pretty butterfly is thus described by the American entomologist, T. W. Harris : "Their wings are yellow,' with a black hind border, which in the females is quite broad on the fore wings, and spotted with yellow ; the fringes of the wings, the antenna:, and the shanks are red ; the fore wings have a small narrow black spot on both sides near the middle ; the hind wings have a round orange- coloured spot in the middle of the upper side, which on the under side is replaced by a large and a small silvery spot close together, and surrounded by a rust- coloured ring."— V. dementi, Ontario, Canada. Lapwings ( Vanellus cristatus). — During the snow- , storm in the end of March and beginning of April, the Lapwings, who had returned to their breeding- grounds, were so pressed with hunger, that some entered the very houses in search of food. After the snow had disappeared, the remains of hundreds who had perished were to be seen. It appears they will rather die of starvation than leave their favourite haunts in the breeding season. — W. S. Fyvie. Intelligence of a Magpie. — Some years ago, when residing at Stowmarket, I was much struck with the intelligence of a Magpie belonging to my next-door neighbour. In a very short time, and without any effort to teach it on the part of any one, it learnt the names of several members of my family, and never misapplied them. This proves that birds, in acquiring human language, connect the object and the word, and do not use the latter at random. The Magpie in question was evil-disposed, and loved to annoy girls by pecking their feet; but on the approach of a man or a boy it scuffled away, uttering most unparliamentary phrases. Its leg having been acci- dentally broken, it repudiated all surgical aid. It used to sit on the sound foot and hold up the maimed limb, looking at it disconsolately, and pecking at the bandages with continual ejaculations of "D it !" and died at last worn to a skeleton. — J. W. Slater. Gigantic Mullein. — When botanizing on the 15th of August last in Spittlesea Wood, near the place I was gratified by finding an extraordinary specimen of the Great Mullein ( Verbaseum thapsus)K It towered up to the height of eight feet and a half, lifting its spike of yellow blossoms above the sur- rounding undergrowth, which had been cut down about three years ago. The total length of the raceme was three feet six inches, and at the base of it were two small lateral flower spikes, the one about six and the other about eight inches in length. Not far from the spot other specimens were growing, the height of which was five and a half feet, but this appeared quite diminutive by the side of its gigantic fellow. This excessive growth may be accounted for by the humidity of the season and the sheltered position in which it grew. The soil is light gravel, over chalk, with flint.— J. Sau7iders,_ Luton. 214 HARDWICKE'S SCIENCE-GOSSIP. Natural History Notes from Ireland. — J A hen was found in a loft, the flesh eaten and picked off, leaving as perfect a skeleton as could be desired. The feathers were lying about. Rats or mice would ! have broken the bones. What animal could have done it ? A young black rat was killed at Port- more, Antrim, October, 1877. The gamekeeper j of Mr. Lowry, Pomeroy House, told me, within the last two years he has caught, in traps set for rabbits, two wild cats. I questioned him respecting them, in case he might have mistaken them for the domestic cat gone wild, but he stated they were perfectly dis- tinct, having bushy tails like a fox, and dark grey in colour. He could hardly be mistaken, as he is con- stantly trapping the domestic cat. The water-vole is found near Pomeroy ; the squirrel is also to be found in the neighbouring woods ; the water- ousel frequents the streams. — Sam. Arthur Breiian, clerk. Rare Birds. — It is with great regret that I read of the slaughter of rare birds, recorded from time to time in Science Gossip and other papers. I am sure no real lover of birds, or true naturalist, would so ruthlessly destroy birds, as they are destroyed, for the sake of their skins, whenever they come to our island. Hardly a season passes but that beautiful bird the Hoopo appears in Berkshire, and I believe it would breed, if it were not so eagerly sought after, and shot.— J. L. H. The Cuckoo and Water- Wagtail. — Last August, before 9 a.m., a young cuckoo was observed perched on a croquet-hoop on the lawn, in front of our house, full in view of spectators from the win- dows. A water- wagtail was busily engaged in feeding it, flying on the hoop each time it fed its strange foster-child. The cuckoo remained for half an hour on the hoop, then flew on to a small rockery near, and from thence to an adjacent railing, the wagtail following it to both places, and continuing to feed it. Both birds afterwards disappeared from sight in a large sycamore-tree. The feeding-time lasted nearly an hour, the wagtail often going some distance in search of food for the cuckoo. Our gardener told us he had noticed before the same birds thus occupied in the early morning, and had also seen a young cuckoo being fed by robins in a similar manner. — ■ C. M. Baynes. A Mysterious Gift. — I remember reading in an old book (which also gave an account of the first ascent of the Peter Bolte Mountain, near Port Louis) an account of a French Creole in Mauritius, who possessed the marvellous faculty of discerning objects far out at sea long before they were visible to the ordi- nary human eye. His powers were repeatedly tested, and he was officially employed by the governor or mer- chants there to announce coming ships. He foretold the arrival of the British fleet, which came to take possession of the island, several days before it hove in sight. He stated that he saw these objects upside down (refracted?) on the horizon, and professed to teach his art ; but the attempt only proved that he was possessed of some exceptional natural gift, perhaps akin to what the Scotch call "second sight." I was under the impression that the foregoing account was to be found in one of the volumes of Charles Knight's "Useful Knowledge Society's Series"; but as I have failed to discover it there, perhaps some of your older readers can help me. My present pur- pose is to point out a striking confirmation of the above narrative, which I have recently met with on p. 185 of Boddain-Wheltham's "Pearl of the Pacific." In narrating a visit to the Samoan Archi- pelago, or Navigators' Islands, he alludes to "a man now living iu Tutuila, I believe," he says, " but who formerly resided near Apia, who possessed the extra- ordinary power of seeing in the clouds, or in the sky, vessels that were bound for the island. Credible wit- nesses told me," he continues, "that he had fre- quently foretold the approach of ships days and days before their arrival, and had accurately described them, their rigging, their build, and the weather they were having— sometimes storm and sometimes calm ; reference to the ships' logs on their arrival in port confirming the truth of his statements. He himself attributed his remarkable visions to the state of the atmosphere — a sort of mirage — at a certain point where he took his observations, but I never heard of 'anybody else witnessing similar phenomena." I thought the concurrence of these totally distinct and independent accounts worthy of your attention, as they may tend to establish the general fact of the existence of a sort of "double sight " in certain gifted individuals, and thus refer the mysterious power of the ' ' seer " to a physical rather than a spiritual source. — F. A. Allen. A Spider's Instinct. — Dr. J. Lawrence-Hamil- ton writes from 34, Gloucester-terrace, Hyde-park : — "The following incident, which I witnessed, may possibly interest some of your readers : — A boy re- moved a small spider to place it in the centre of a big spider's web which was hung among foliage, and distant some four feet from the ground. The larger animal soon rushed from its hiding-place, under a leaf, to attack the intruder, who ran up one of the ascending lines by which the web was secured. The big insect gained rapidly upon its desired prey, the smaller creature (spiders are cannibals, notably the larger females, who are given to devour their smaller male lovers). When the little spider was barely an inch in advance of its pursuer, the small spider cut with one of its posterior legs the line behind itself, so that the stronger insect fell to the ground, thus affording time and opportunity for the diminutive spider to escape along the ascending rope of the web. This is not the only fact which seems to indicate that a spider's instinct may almost equal reason." How to exterminate Mites. — In answer to "M. R. D.," in the April number of Science- Gossip, as to how to exterminate small mites, I have myself found Keating's Insect Powder quite successful, after having tried other remedies in vain. ■ — Alfred Patersoii. Reasoning Power of Dogs. — I should like to call attention to what I think to be a remarkable instance of reasoning power in a dog (a setter, if I re- member rightly). The yard in which this dog is kept at large is separated from a very narrow lane by a wall about five feet in height, from the top of which our four-footed friend is wont to study humanity. On an interesting occasion he loves to leap into the lane ; but, when once down, he is unable to jump up again without a long run, and this is apparently rendered impossible by the narrowness of the roadway. The dog, on wishing to re-ascend, begins to trot round and round in the centre of the path, gradually increas- ing his pace and the diameter of the circle in which he moves, until he is galloping round at full speed, taking a good "kick off" from the stone at each revolution as soon as his orbit extends from wall to wall. When he feels that he has acquired sufficient momentum, he bounds on the top of the wall with ease. I hold that the above performance involves a process of reasoning. Instances of dogs pulling bell- ropes and turning door-handles may result from mere HARD WICKE ' S S CIENCE -GOSS IP. 2I5 imitation, but the case in point cannot be thus ex- plained. This dog, having discovered that a recti- lineal career was impossible, must have, somehow, hit upon the idea that he could run round the circum- ference of a circle to any desired distance, and this principle he has applied to the solution of the diffi- culty in a truly ingenious way. — C. W. Carringlon. Clams. — I have noticed for two seasons past " Preserved Clams " in tins, on a Liverpool Trade Circular. I think they are new candidates to gastro- nomic favour in this country. I take them to be the " Otter" shell {Lutraria maxima), found so plentifully on the coasts of Vancouver's Island and British Colombia. Tridacna gigas is also known as the "clam," and is, I believe, eaten, but its habits render it difficult to procure in large quantities. The " Otter" shell on the other hand is known to be one of the staple foods of the Indians of the North-West Coast, and J. K. Lord tells us that it is, in fact, a "molluscous cereal," which the squaws dig in summer from the sand and mud-banks of the coast, and dry and smoke in the interior of their dusky wigwams for winter use. I have not tasted the "preserved" clam, and cannot therefore speak of their edible qualities, but Mr. Lord's experience of "smoked" clam does not appear to have been a pleasant one, as he compares it to chewing " good old tarry rope yarn." Are any of your readers able to speak of its worth as an addition to our food stuffs? — IV. A. Cairns, Leominster. Preserving Animals. — I, like "W. G.," have met with an article mentioning the method of pre- serving animals, practised by Mr. Waterton. This article occurs in the Cornhill Magazine, January, 1863. It tells what has to be done, but not how to do it. " The tools required hardly deserve the name, for all these wonderful effects are produced with a penknife, a lump of wax, half-a-dozen needles, and three or four wooden skewers. In simple fact, the modus agendi is pure modelling, the skin being used as the material, and reduced by art to the plastic state of sculptor's clay, a temporary stuffing being placed within it to keep the skin moderately distended during the pro- gress of its drying." I should be very glad if some one among the many readers of Science-Gossip would give better the directions, or name some work where they may be found. — JV. L. Beaumont. Rose-coloured Pastor is not the shelah, a thrush, nor ever will be. It is a starling, and closely allied to our well-known birds. It is a visitor to all parts of the United Kingdom. There is a most interesting account of its visiting and breeding in Italy, in the "Zoologist" for last January. See also Harting's "Handbook of British Birds."— C. H. Bree, M.D. The Opercula of Shells. — Among those who take an interest in the science of Conchology there are many who almost leave out of sight the opercula or lids by which the mouths of many shells are closed. They ought, however, to be noticed, because, according to Gray, the typical form of a shell-fish is the bivalve ; and he considers the oper- culum but as a variation of the other valve. There seems to be some reason for this, because, as we all know, in many bivalves, as in the Oyster, the smaller valve takes very much the place of it ; and in that curious shell, the Anomia, it seems hardly needed, and — one step further — in the Limpet it is altogether wanting. There is a curious provision of nature in those cases of Univalves in which this lid is wanting ; they secrete in very dry weather, and in the winter, what is called an epiphragm, or thin membrane, which covers the opening as a substitute for the operculum. An example of this is to be seen in the common garden snail {Helix aspersa). The variety of form among the opercula is very remarkable. In the case of Cyclostoma elegans, our only land-shell having this lid, it is nearly circular ; that of Turbo Sarmatictis has a coralline appearance on the upper side, or, as Woodward calls it, like some of the tufaceous deposits of petrifying wells. Some again are very thin and brittle, as in the Whelk {Buecinum undatum), and not at all the same shape as the former, but brown and horny, and in shape an ellipse. — S. Cream - coloured Blackbird. — A cream- coloured Blackbird was shot in Easingwold church- yard some time in March. It is a very fine specimen, and in very good condition. I may also mention that a cream-coloured mouse was trapped in a house in this city on the 7th. They are both in the possession of Mr. Ripley, Bird-skiffer, Feasegate, York. — Percy Thompson, York. Poisonous Properties of the Fluid of the "Solanum Dulcamara." — To my certain know- ledge, the berries of this plant are injurious to chil- dren. I have seen more than one instance of very serious effects having followed the eating of "dead men's cherries," as the fruit of the bitter-sweet or woody nightshade is often called, — effects which would probably have ended sadly had not prompt measures been taken. The children had fortunately in each case eaten sufficient to produce sickness, and this was aided by emetics until all the berries were dislodged. One little fellow had slight convulsions for days, therefore, I have not the slightest doubt on the subject, though Majendie and others state that they would not hesitate to take them, because they are innocuous to animals. "Seeing is believing." The twigs and leaves of the Solanum Dulcamara possess medicinal properties. — H. G. Watney. " Sorrel, from the Low German snur, sour." NOTICES TO CORRESPONDENTS. To Correspondents and Exchangers. — As we now publish Science-Gossip a week earlier than heretofore, wo cannot possibly insert in the following number any communi- cations which reach us later than the gth of the previous month. R. G. — Thanks for the slide. The mounted arachniae taken from the legs of the House-fly appears to be a species of Ganiasns, allied to the Beetle-mite (G. Coleopti-atorum, L.), but another species. W. H. N. — Your bald-headed sparrow had, perhaps, been in the " wars," a not uncommon occurrence ; or it had been affected too considerably by mites. M. H. Robson (Newcastle-on-Tyne). — The box containing glass tube in which you enclosed a variety of Hydra, reached us with the glass smashed to pieces. It should have been posted with a luggage-label attached, on which the address and stamp should have been placed. The blow given when stamps ing had shattered the glass. M. J. Wilde. — Your specimens are : — (1) a piece of Trap, with calcite crystals on joint-face ; (2) fragment of Copper ore (Cupric sulphite) ; (3) piece of Milk-quartz ; and (4) portion of water-worn nodule of Flint. F. Norris. — The plant you sent us is a fine specimen of the Blue Fleabane (Etigervn acris). Anonymous. — We are obliged to call attention to an old rule of ours, which declares that anonymous communications cannot be attended to. R. G. C. — The insect found on the dog is a well-developed specimen of the Dog-tick {Ixodes ricinus). We cannot under- take to answer your latter question without fuller information. Newquay. — The grass you inclose is the Annual Meadow Grass (Poa annua), and the other species intermingled with It is the common Spurrey (Spergula arvensis, L.J. 2l6 HARDWICKE'S SCIENCE-GOSSIP. F. L. St. A. (Hants).— The shrub labelled No. i is a Buck- thorn {Rhamnus Frangula, L.), and the other specimen is very imperfect, and too small to judge correctly ; but we believe it to be Calamintha Nepeta. Many thanks for your kind note respecting orchids. B. M. W. (Treaddow). — We detected only one rust, or clus- ter, at the margin of one of the leaves, which is undoubtedly Trichobasis Geranii, B., but we believe it is attacked by an- other fungus unknown to us ; but it is immature, therefore difficult to decide in its present state. G. A. H. (Manchester). — It is what we have recognised as Chara hispida; however, we confess they are too little studied, and very little seems to be known about this class of plants. C. H. Bould. — Your plant is the Soap-wort (Saponaria officinalis). W. H. Legge. — We have forwarded your account of "a strange bird " to several first-rate ornithologists for identification, but all, without exception, state they cannot make anything out of it. G. S. Barnes. — See an account of your peculiar malfor- mation of cabbage-leaf in present number. E. E. Evans. — Your eggs were completely smashed when they reached us, so that it was impossible to name any of them. W. E. Richardson. — We have received the Trilobite, which is a fine specimen of Calymene Blumenbachii. What you took to be a "fin" is merely the rim of the cephalic shield. The Trilobites being Crustaceans (allied to King-crabs) did not possess " fins." R. H. N. Browne. — The eggs grouped on the backs of oak- leaves are not those of Coccus, but of a species at Aphis. Two of them hatched whilst the leaf was under the microscope, so that the aphides were visible. A. Lury (Southampton). — The white substance you sent us from the bark of a young Scotch fir is not a fungus, although it was formerly considered, and even described, as such, under the name of Psilonia nivea. It is of animal origin, however, like the "Apple-blight," and formed by an insect, a species of Cynips. E. C. — From your specimens we can only make out the male and female of the common gnat (Culex pipiens) ; except that they are smaller specimens than usual under the micro- scope, they exhibit all the characters of the common gnat. S.— -It is Mr. Lankester's "Wild Flowers worth Notice " to which we referred. F. R. S. — Prof. Hull has already published a work on the Geology of Ireland, and another and a fuller work on the same subject by Mr. G. H. Kinahan is about to be published. See papers called " Sketches in the West of Ireland," by Mr. Kinahan, in Science-Gossip for 1873, 1874. and 1876, giving archaeology, botany, and geology of the district. J. Cass. — A potato tuber is only an underground bud ; and the monstrosity you sent us is not an unfrequent one, as it con- sists of pseudo-tubers, or buds, forming at the base of the leaf- stalks. We have seen several examples this summer. J. A. Floyd. — The specimens sent us from Cambridgeshire are of Lower Cretaceous age, but, perhaps, not sueh excellent phosphates as the so-called " coprolite " stones, on account of their containing a large percentage of iron oxide. No. 1 are the teeth of Spherodus. 2. Tooth of Saurian, probably Cam- py/osaurus. 3. Ammonites lautus. 4. Tooth of Saurian. The others are fragments of fossil wood, impressions of A mmo- nites, casts of chambers of A mmonites, &c. EXCHANGES. To dispose OF. — Eleven volumes of the Pateontological Society's publications, viz., for the years 1848 (2), 1849 (2), 1850, 1851, 1852, 1862, 1863, 1864, and 1865 ; also a Ten Guinea Smith & Beck microscope. — S. J. B., Rectory, Beaconsfield, Bucks. WELL-rooted plants of good varieties of Ferns, blooming Greenhouse Plants (not bedding), and Cacti, in exchange for rare British and foreign Shells, polished Stones, and Fossils. — Address, F. R. E., 82, Abbey-street, Faversham, Kent. Wanted in exchange for Lepidoptera, or a small hand Printing-press, British Birds' Eggs, side-blown.— R. Cross- key, Castlegate, Lewes. WELi.-mounted Slides of Foraminifera (Lagiua), or Diatom (Campy lodiscus cyp.), in exchange for good Mounts, not Polariscope. — A. Alletsee, n, Foley-street, London, W. Wanted, unmounted, scales of fish, palates of mollusca, spines of star-fish, parts or entire foreign beetles and butterflies, stained anatomical and vegetable preparations, zoophytes, wood sections, sori, mosses, marine alga;, fungi, and micro-geoiogical specimens. Good exchange offered. — Alpha, 16, Brunswick- street, Blackwall, London, E. Botanical exchanges desired. —Send lists to F. W. E. S., Hadlow, Tunbridge. Birds' eggs, side-blown. Having collected during late tour, can offer collectors many extreme rarities in exchange. — •Sissons, Sharrow, Sheffield. To American Entomologists. — East Indian, African, and other ■exotic Butterflies sent in papers in the finest condition and good species for Cocoons of Cecropia, Luna, To, Polyphemus, and Cynthia. — William Watkins, 36, Strand, London, W. C. Offers.— " Lond. Cat.," 7th ed., Nos. 81, 82, 97, 100, 133, 141, 145, 280, 296, 301, 316, 319, 326, 354, 369, 373, 376, 491, 531. 564, 612, 622, 627, 753, 761, 917, 984, 1147, 1 160, 1241, 1317, 1447, 1448, 1502, 1577, and many others, in exchange for British Mosses or Flowering Plants. Lists exchanged. — W. E. Green, 24, Triangle, Bristol. Cerastium holosteoides, Listera cordata, y uncus triglumis, Herniaria subciliata, &c, for 101, 103, 153, 202, 309, 358, 374, 404, 477, 481, 526, 767, 1046, 1082, 1438, 1484, 1507, 1521, &c— G. C. Druce, Northampton. For unmounted Scales of Carp, Sole, Perch, Roach, Pike, and Haddock, send unmounted Object to J. Moore, 12, Por- chester-street, Birmingham. Micro-Fungi. — Wanted, unmounted Specimens of the order yEcidiacei, first-class slides or material for good specimens only. — Dr. Marsh, Duke-street, St. Helens. For mounted Chelifer muscorum send a well-mounted Slide (named diatoms particularly wanted), to George Turvill, East Worldham, Alton, Hants. Wanted. — Set of the Human Eye : Optic nerve, cross and per. sect. ; sclerotic coat, sect. ; cornea, sect. ; retina, sect. ; chrysaline capsule ; iris ; ciliary process ; choroid coat, long, and trans, sects. ; eyelid, with hair on eyelash. Will give Geo- logical Transparent Slides in exchange. — Address, M. Fowler, 45, Burn-row, Slamannan, N.B. Mammalian Fossils from the gravel and caves, in exchange for others. — W. G, 10, Newcastle-street, Tuxford, Newark, Notts. All or part of Design and Work, cost 4s. iod. ; English Mechanic, 5s. ; Fancier's Gazette, 6s. 9d. , for back numbers of Science-Gossip, or offers. — E. V., 41, Peckham-grove, S.E. Spines of Amphidotus cordatus and Algae, with Diatoms in situ, in exchange for other objects of interest. —J. Wooller, io, Farm-road, Hove, Brighton. Anatomical sections, mostly human ; lung, heart, liver, &c. Will send some in exchange for any well-mounted objects. — C. P. White, the Priory, Lewisham. F. atomaria, piniaria, P. rota, and others, in exchange for Moths, Plants, Mosses, or Shells. — R. Renton, Fans, Earlston, N.B. A large case, containing two well-stuffed Squirrels ; also a preserved stuffed Snake (Python), to exchange. Wanted, side- blown British Birds' Eggs, Natural History Books, or offers. Correspondence invited, all letters answered. — W. Barrett, Roue, 165, White Ladies'-road, Bristol. NEATLY-finished Slide of Scorpion Fly, mounted whole, offered for good Slide of picked Diatoms, or Diatoms in situ. — J. Neville, Wellington-road, Handsworth, Staffordshire. To Conchologists resident at home, abroad, or in the colo- nies.— Having Duplicates of nearly a hundred species of the British Land and Fresh-water Shells, including many of the rarer Vertigos, such as subslriata, antivcrtigo, alpestris, pusilla, and augustior. Will be glad to exchange these for Foreign or Colonial Shells, equally good, either land, fresh- water, or marine, or would exchange foreign duplicates only for the same. — W. Sutton, Upper Claremont, Newcastle-on-Tyne. Good side-blown Specimens of the following Eggs for ex- change : — Cormorant, Puffin, Sandwich, Arctic and Common Terns, Dunlin, and Eider Duck, Desiderata : other good Eggs or Lepidoptera. Send offers. — John D. Walker, 21, Holly- avenue, Jesmond, Newcastle-upon-Tyne. BOOKS, &c, RECEIVED. " Science pour Tous." " Land and Water." July. "Journal of Applied Science." July. "The Natural History Journal." " Potter's American Monthly." June. "American Naturalist." ,, "Chambers' Journal." July. "Ben Brierley's Journal." July. " Botanische Zeitung." " Collecting Butterflies and Moths." By Montagu Brown. London : Bazaar Office. Appendix to " Contributions to Natural History." By James Simson. &c. &c. &c. Communications received up to 8th ult.. from: — S. A. B.— H. T. G— Prof. B. A. T.— H. W. S. W. B.-G. T. — H. C. C— T. B.— E. C— E. W.— V. C— J. G— T. G. B.— G. H.— R. H.— C. H. B.— G. T. B.— G. S. B.— W. G. P.— Dr. E. de C— G. C. D.— E. B. S.— A. F. G.— R. H. N. B.— - F. K. — C. P. O. -F. B. N.— F. R. M. — J. W. S. — F. W. E. S.— A. J. R.— J. M.— W. E. G— W. W.— H. C. C. — R. G. C— J. C. C— R. G— Dr. M.— M. S.— W. H. N. - A. A.— G. C.-C. E. R.— H. E. W.— M. J. W.— R. C— E. R. F.— S. J. B.— Dr. M.— M. H. R.— J. S.— P. T.— J. D. W.— W. S.— J. N.— F. R. S.— H. L.— J. G. G — W. L. B.— W. M. C. C. S.— W. B. R.— H. M.-F. H. A.— R. R. — C. P. W. — H. W. T. —J. W. — R. S. — J. W. S. — G. R. -E. V.— J. C— J. A. F.— G. H. H.— W. G. -M. F.— C. C— &c. &c. HARD WICKE'S S CIENCE - G O SSI P. 217 QUARTZ^ AS IT OCCURS IN THE LAKE DISTRICT; ITS STRUCTURE AND ITS HISTORY, By J. CLIFTON WARD, F.G.S., F.R.M.S., &c. {Read at the Annual Meeting of the Cumberland Association for the Advancement 0/ Literature and Science.) INTRODUCTION. HERE are few minerals more widely spread than Quartz, a chemical com- pound of the two ele- ments, Silicon and Oxy- gen. Common though this mineral is, however, its study opens out questions of deep inte- rest, and may lead us from the contemplation of a pretty piece of rock-crystal to the consideration of subtle and hidden processes in the formation of the crust of our globe. 1. Geological Distribution. — Quartz occurs among cur lake-country mountains in several forms, but never as a rock by itself, in thick-bedded masses, as is occasionally the case in other mountain tracts. Vein Quartz exists under four conditions. (1.) Constituting the whole thickness of a lode or vein, in which case the latter may be said to be a quartz vein, unless the quartz contains much valu- able ore, such as lead or copper, for then it will more frequently be called a lead or copper vein with a quartz veinstone. Some of these quartz veins are of considerable width — many yards, — and run in straight lines, sometimes for several miles, though often broken by faults. That they contain gold in small quantities is certain, and I have in my possession some small grains of this precious metal extracted from a vein of quartz in Borrowdale. It is well known that gold has been mined in Wales for a great many centuries, but it seems not to exist in any of our Cumberland quartz veins in workable quanti- ties, so far as I have been able to judge. (2. ) Instead of being itself a lode or vein, quartz frequently forms strings or courses running in or through a lode formed of various mineral substances . No. 166. Supposing the lode to be lead-bearing, it often be- comes an important question how much of the vein- stone may be quartz, and how much calc-spar, barytes, or other minerals ; for the quartz is very much harder than most other constituents of veins, and if the ore has to be extracted entirely from such a matrix, the labour is much increased. Nevertheless, sometime1-, even quartzose vein-stuff is quite crumbling, and, when so, the working is comparatively easy. This is the case with several lead-veins occurring in the Vale of Newlands. (3.) Quartz, when occurring either as a massive lode or a slender string, is opaque, and generally of a pure white colour ; but it occurs, thirdly, in the form of clear transparent crystals, lining the sides of cracks and fissures either in massive quartz or in some other mineral substance. These crystals have the general form of a six-sided prism, terminated by a six-sided pyramid, but owing to variations in the relative size of the several faces, the appearance of the crystals may vary. Sometimes also they are coloured in various tints, clue to oxides of iron, manganese, &c, mingled with the oxide of silicon, or silica, as it is more usually called. It will be noticed that the pointed ends of the crystals project away from the sides of the crack or fissure which they line. (4.) Lastly, vein quartz occurs in indefinite lenticular masses and strings among the strata of many geological formations. Thus, occasionally it may be seen to occur between the planes of bedding of strati- fied rocks, more frequently, however, traversing those planes in an irregular and stringy manner, and some- times much developed along the cleavage planes, as may be seen in the Skiddaw Slate between the sum- mit of Hindscarth and Scope End. Quartz as a Rock-constituent : — [a.) Of Stratified Rocks. (b.) Of Unstratified Rocks and Volcanic Rocks. [a.) Of Stratified Rocks. In the Skiddaw Slates there are many parts, L 2l8 HARDWICKE'S SCIENCE-GOSSIP. especially the lower, seen on Whiteside and Gras- ' moor, which have been produced by sandy or gritty ■deposits, and the grains of quartz may frequently be distinguished clearly with the naked eye. Again, in a well-marked bed of grit, in the upper part of the Skiddaw series, to be well studied in Great Cockup, north of Skiddaw, in the sides of the southern breast of Skiddaw, and notably at Lank Rigg and Latter- barrow, in the south-west of the Lake District, the grains of quartz frequently approach the size of small pebbles. In all these cases the quartz fragments are more or less rounded, showing that they have been rolled in the water, and are formed of white quartz, such as occurs in veins, or such as may be won from the disintegration of granite. Even in the clay-slate proper, the microscope reveals the presence of small j grains of quartz amongst the aluminous matter. In some of the beds of Carboniferous Limestone that wrap round the mountainous tract, quartz occurs both in the form of small pebbles and of curious amorphous masses, very similar to the flint in chalk, but known as chert. In the sandstones, interstratified with the limestone, quartz, in more or less rounded grains, is the chief constituent. In the Penrith sand- stone, of younger age than the Carboniferous, the small grains of quartz are specially interesting, because, in some parts of the sandstone, at any rate, each grain shows the form of a doubly-pyramidal crystal, the crystals being of very uniform size, and their form often not a great deal affected by rolling. Whence these little crystalline particles could have been derived, to form the sandstone, is somewhat of a puzzle. Among the Blue Mountains of New South Wales, Darwin observed a similar case, and remarks : " It is difficult to imagine how these crystals can have been formed ; one can hardly believe that they were separately precipitated in their present crystallized state. Is it possible that rounded grains of quartz may have been acted on by a fluid corroding their surfaces and depositing on them fresh silica ? " The silica in old glass sometimes regains its crystalline structure, as shown by Sir David Brewster in 1840. Quartz as a Constituent of Unstratified and Volcanic Rocks. ( 1 . ) Among Granitic and Granitoid Rocks. — Gene- rally speaking, in true granites, quartz occurs uncrys- tallized, being the last of the constituent minerals to solidify ; it then appears to fill up all the interstices of the other minerals, the felspar and the mica. This is the case with the Skiddaw, Eskdale, and Shap granites in the mass ; though sometimes very locally, or in the form of dykes proceeding from the main mass, the disposition of the quartz is not interstitial, but crystalline. This latter mode of occurrence may be well studied in the quartz felsite of St. John, and notably in the Armboth Dyke. In these cases the quartz and some of the felspar have crystallized out in a felsitic base, and the cross sections of the quartz crystals often look nearly square from the unequal development of all the six sides. In the Armboth Quartz Felsite Dyke, the embedded crystals are most clearly seen, and the pyramidal termination of both ends may be well observed. (2.) Among intrusive Diorites, Dolerites, cj-y. ( Greenstones). — I know of no cases of quartz occurring in a crystalline condition in the rocks of the Green- stone class. Nor is quartz generally a conspicuous constituent in any form among such rocks. Micro- scopic study of the class, however, reveals the very frequent existence of this mineral in small portions among the other constituent minerals. In some cases its presence may be due to deposition subsequent to the first formation of the rock, and such belong to our next group. (3.) Quartz as an Accidental Constituent. — -By an accidental constituent is meant one that forms no essential part of the rock, but has been introduced, perhaps, long after that rock was formed or solidified. Its manner of occurrence in these cases clearly shows that the quartz has been deposited from solution, — water containing silica infiltrating through the rock- mass. It thus fills up cavities, and sometimes replaces other minerals dissolved away. Among the volcanic rocks of the district, quartz is very common in this form. In beds of lava, and sometimes in those of volcanic ash, vesicles or long almond-shaped cavities are generally produced by the escape of vapour and gases from the molten or heated matter, on its first eruption from the volcano. Subse- quently, when such lava-beds have been covered up by great thicknesses of overlying strata, the water, which is for ever percolating the crust of our earth, and contains very various mineral substances dissolved in it, deposits these in the cavities and vesicles, and amongst other minerals thus left to fill the vacant spaces quartz is very common, and may often be found filling the same vesicle with the minerals calcite (carbonate of lime) and chlorite. When a large vesicle has been thus filled with quartz, vari- ously coloured and under different physical forms, it sometimes happens that the surrounding rock is subsequently broken up and destroyed, and then the hard kernels of quartz are isolated in the form of agates. Such are the agates of Wallow Crag, Keswick. {To be continued.) BRAMBLES ABOUT LONDON.— II. By Dr. E. De Crespigny, Author of " A London Flora." iv. VI: LLICAULES.— In this section the aciculce and setae disappear : the stems are angular, strong, prickly, and furnished with hairs, which are usually duplicate or fascicled, and spread- ing; orstellately downy and adpressedj a difference HA RD WICKE'S S CIENCE- G 0 SSIP. 2ig sufficiently well marked to admit of the species of this section being also subdivided. a. Villicaides proper; type, R. Umbrosus (Macro- phyllus, var., of some authors). — The stems of this bramble when old, are frequently apparently glabrous, from the hairs being deciduous ; the young shoots and flowering branches are, however, always shaggy with spreading pubescence ; the leaflets round with a short acumen, moderately thick, smooth, and dull green above, pale and furnished with short hairs beneath ; prickles strong, conical, patent ; panicle pyramidal, with ascending branches ; not unfrequent in copses and shady places : Pinner woods, Putney Heath, Broxbourne woods. R. villicaulis. — Stems and general habit similar to the preceding ; leaflets thick, obovate, or broadly oval, often cuneiform below ; obtuse or mucronate ; patently dentated, green above, whitish and velvety beneath veins of the upper leaflets often reddish ; panicle compact above, more open below, with ascending branches ; petals white, obovate, not contiguous ; sepals ovate, with a mucronate point, setose and aciculate ; prickles moderately strong and straight ; rachis and pedicels frequently remarkably velvety : Broxbourne and Wormley woods. R. macrophylhts. — The leaves in this species are large, broadly obovate, thin ; panicle elongated, with ascending branches. It is a variable plant, and occurs in the woods about Broxbourne, or intermediate, with the following species : — R. leucostachys may be easily recognized by its close-set panicles of pink flowers, with fila- ments of a still pinker hue ; the petals are large, obovate, and contiguous ; the stems angular and hairy; leaves soft, dull green, hairy above, and more so beneath, of a roundish or obovate form ; those of the upper part of the young stem and of the flowering branches whitish beneath, the rachis is whitish, with a soft tomentum, as are also the pedicels ; the calyx is rather dark, hairy, setose, and aciculated. — N. B. In common with all brambles of this subsection, a few seta; are sparsely scattered on the rachis, &c. b. Tomentosi. — In this group the spreading hairs of the stem, and especially of the rachis, appear in the altered form of adpressed stellate down ; type R. discolor. This is the bramble of general occur- rence in wayside hedges ; it is so well known that, except to indicate the chief points in which it differs from others, it is hardly worth while to refer to it. The stem is angular and armed with strong, usually recurved prickles ; hoary when young from the stel- late down ; leaflets quinate below, ternate above ; narrowly obovate, small (usually) coriaceous, slightly convex, dull green above, white or grey below, with a close-set felt or tomentum ; rachis, pedicels, and calyx felted in the same manner ; panicle narrow, with short branches ; petals contiguous, obovate, pink ; styles more or less deeply tinged with purple, as are also, not unfrequently, entirely or in part, the filaments. R, tkyrsoideus : less common, but by no means rare. The stems are as stout and strongly angled as are those of R. discolor, but the stellate down is less closely adpressed ; the leaflets are broader and more acuminate upwards, larger, and not convex ; the under-side similarly felted ; rachis and calyx both hairy and felted ; panicle long, nar- row ; lower branches many, axillary ; petals white. R. rubeolas (Sallcri) .— This bramble is the connecting link between the Villicaules and the Nitidi. The stems in this species are nearly terete, reddish ; hairs scattered and deciduous ; prickles rather strong, declining, straight, not curved ; leaflets obovate, or lanceolately acuminate, grey and slightly pubescent below ; rachis loosely pubescent ; panicle narrowly thyrsoid and prickly ; petals pale rose, obovate ;. contiguous sepals, hairy, aciculate, obovate. It flowers early : gravelly commons, — Barnes, Putney Heath. V. Nitidi. — Stems thorny, strongly angled, en- tirely free from hairs, acicula;, and setae ; but the rachis of the panicle is hairy more or less : type, R. rhamnifolius {cordifolius ?). Arched stems of a lively red colour, angled, and furnished with strong prickles, straight and deflected, sometimes patent ; leaves quinate, of a bright green colour, lighter below, ovate, the terminal one cordate, acuminate, or sub- cuspidate ; the basal ones narrowly ovate and strongly directed backwards, finely serrated ; petals- white or faintly tinged with pink, obovate ; styles green. Copses and on the borders of woods, not often in hedges : Hampstead Heath, Putney Heath, Harrow Weald Common. On Barnes Common and elsewhere there is a variety with smaller and more coriaceous leaves ; terminal leaflet not cordate ; a smaller and more compact panicle and smaller flowers of a pale blush colour. This is certainly R. rhamni- folius proper ; R. Lindleyanus (/iMrfus) differs from both in the form of its inflorescence, which is corym- bose somewhat, with short patent branches below, and not pyramidal. It has shining bright red stems ; shin- ing light-green leaves, whitish underneath, narrower than those of R. rhamnifolius, and coarsely and doubly toothed ; petals pure white ; filaments turning crimson as the flowers fade. It occurs on Harrow Weald Common and Stanmore Heath. R. incurvatus* — This bramble, uncommon elsewhere, is plentiful on Putney Heath and on Barnes Common ; there are also a few bushes on the lower part of Hampstead Heath. The stems are green, reddish when old,, smooth, angled, and furnished like its congeners with rather strong prickles, which are patent on the stems, but decurved on the rachis ; the leaflets dark- green and glabrous above and below, deeply and sharply toothed, concave, the margins incurved and wavy ; the panicle is narrow, branches short and patent ; petals white, obovate ; sepals ovate, hairy, greenish. (The peculiarity of the leaves is not seen when they are pressed and dried. ) The foregoing is by no means an exhaustive notice L 2 220 HARD WICKE'S SCIENCE- GOSSIP. of the London Rubi. Probably other species and varieties are known to observers ; we have several doubtful specimens ourselves, which would, if really out of the common, warrant the inference that much may be done in this field of research. Altogether, the subject is not a very satisfactory one ; but some practical gain would result from a determination of the extent to which certain deviations from the cha- racteristics of a definite number of typical forms occur under certain conditions of locality, and whether they are constant in such conditions. The Fig. 171. Prickles, aciculae, setae, and hairs of stem of R. koehleri. Fig. 172. Setae and hairs (magnified). the nitidi ; and that which is narrowly obovate to the tomentosi ; but we could do so only in a general sense, because the exception; in every case would be too frequent. Specific nomenclature, therefore, de- rived from the form of the leaflets, should be dis- carded.""" The down and pubescence of the stems, on the other hand, are often deciduous : true, these characteristics are frequently apparently wanting, but the lens applied to that portion of a stem which has not been exposed too directly to the sun or vicis- situdes of temperature will often reveal its presence Fig. 177. Adpressed stellate down (mag.). Fig. 178. Spreading fasciculed hairs. Fig. 173. aciculae, and R. nemorosus es, of Fig. 174. Gland and tomentum of sepal of R. discolor (mag.). 181. Glandular sepals of R. glandu- losus. Fig. 180. Flower-bud of R . neiuorostis, with few-grained fruit, and sepals ascending, often reflexed. Fig. 182. Glandular sepals of R. hystri.x. Fig. 179. Hair (mag.). Fig. 175. Sepals of/?, cusius, clasping the fruit. -3? Fig. 176. Flower-bud of R./nsco-ater. Fig. 1 S3. Flower-bud oiR. umbrosus. Fig. 184. Flower-bud of R . discolor. characteristic distinctions of the sections above de- tailed are deduced entirely from the stems ; no reli- ance can be placed upon those derived entirely from the leaves, still less from the form of the panicle. This may be racemose, corymbose, pyramidal, or what not ; and we may assign the corylose leaf to one section, the oval or elliptical form to the glandu- losi ; the rotund or broadly obovate shape to the villicaules ;* the ovate or obovate acuminate one to * No definite idea seems to be attached nowadays to the term " carpinifolius " ; formerly it was the general expression for a villicaittis, or hairy-stemmed bramble. Specimens so labelled in herbaria seen by us had no resemblance to the typical form of the section whatever, nor to any of the others composing it. in the form of withered shreds interspersed with small black specks, the points of its former attachment. In September the blackberries are ripe, the right time for gathering specimens as well as fruit ; the panicle, the new leaves, and the young or barren stems are then full grown and formed ; not that flowering specimens should be dispensed with. The localities from which the fruiting ones and cuttings of the stems have been obtained should be carefully * The terminal leaflet is always more or less different to the others. It may be cordate acuminate while the lateral ones_ are ovate, and basal oval or elliptical. As for the situation of the prickles, these are on the angles of the stems when these are angled, and rarely elsewhere ; their bases are often glan- dular or hairy as well as the stem itself. HARD WI CKES S CIENCE - G O SSI P. 221 noted and remembered, in order, when July comes round again, to obtain the flowers. Sometimes in a brake three or four species of bramble will be found growing together, their branches intertangled : care must be taken in such cases, when making cuttings, to avoid mistakes ; flowering branches should always be taken with sections of the old stem attached, and in making sections of the new stem it should always be so done as to include a leaf. Notes also should be entered in a memorandum-book relative to soil and locality ; habit of growth ; colour of the leaves, on the upper as well as under-surface ; shape and colour of the petals ; colour of the styles, filaments, stems, &c, — points which cannot be de- termined from dried specimens. Good localities for research arc the borders of copses in open upland situations, bushy places in old chalk and gravel pits, shady unfrequented lanes, swampy woods, gravelly commons, and the bushy borders of sandy and peaty heaths. ON A "TANGLE" DREDGE. By H. C. C. M. HAVING spent my holidays for several years past in shore-collecting on the North Welsh coast with considerable success, T determined this further communications on the subject before having a dredge made. In the following number of Science • Gossip Mr. E. Lovett, of Croydon, recommends a dredge of hemp "tangles " as being superior in some respects to the ordinary form. Not clearly under- standing how Mr. Lovett would construct his dredge, I wrote to him for further particulars, and the con- struction of the dredge, which I will now attempt to describe, is the result of several suggestions made in his courteous reply. My thanks are also due to David Keid, Esq., of Oldham-street, Manchester, for one or two valuable hints. A, fig. 185, is a piece of brass wire, about the thickness of a lead pencil, and 16 inches long, each end of which is firmly soldered into a boat-shaped piece of lead, BB, 4 inches in length. Lengthwise through each piece of lead a piece of brass wire, CC, about half the thickness of A, and 10 inches long, is fastened, with the ends bent round in the form of a ring. D is a V-shaped piece of brass wire of the same thickness as CC, the two arms of which are each 15 inches long, and the ends are firmly hooked to the rings of CC. To this the towing line is tied. EE are bundles of rope 4 feet long, the strands of which are untwisted, and the fibres pulled out, until they resemble bundles of coarse, rough string. These are firmly tied to the bar A. Fig. 186 shows the bar A and the boat-shaped 186. Diagram showing the Tangle-dredge at work, supported by runners. "runners" in section, and it will be seen that the bar is bent upwards, to allow of its passage over large specimens without injuring them by its weight. Fig. 187 shows the complete dredge as it appears when travelling over the ground. I found that, in order to make the machine fall to the bottom with the keels of the runners on the ground, it was necessary to have Fig. 185. A New Tangle-dredge. year to attempt dredging in the Menai Straits^ Happening to notice a query in Science-Gossip for March about dredging, I thought I would wait for Fig. 187. Section of Tangle-dredge as it appears when travelling over the ground . the boat rowed against the current, and to put it into the water in the proper position, allowing it to fall to the bottom very gradually. Although I did not get a large number of specimens, my captures included sponges, sertularians, echinoderms (including some very fine specimens of O. rosula and 0. neglccta), 222 HARD WICKE'S SCIENCE- G OSS IP. polyzoons, mollusca, and Crustacea, not one of which was injured by the tangles. A pair of scissors were, I found, very useful in removing the specimens. I am afraid that with one exception (the channel between Penmon and Puffin Island) my choice of localities for dredging was unfortunate. One place, about half a mile from Beaumaris pier, in the direction of Puffin Island, was recommended to me by several fishermen as being likely to repay the trouble of dredg- ing, but I was much disappointed with the results of my efforts. However, I feel quite certain that the tangle- dredge will prove to be a useful implement in the hands of marine zoologists, and I shall be glad if some of the readers of Science-Gossip will try it, and record their experience. Manchester. CANADIAN NATURAL HISTORY NOTES. I SAW in last October number of Science- Gossip, an advertisement offering specimens of the notorious Doryphora decem-lineata for sale at one shilling each. We pay for specimens also, but we pay a few cents a pint, or so much a hundred, for them. I also read, in a recent English newspaper, a re- port of the mulcting of a labouring man, the fine being likewise, if I remember aright, a shilling, for having a living specimen of that beetle of evil reputation in his possession. If such a law as that brought to bear upon the unhappy rustic were in existence here, it would superadd a large amount to our revenue, inasmuch as few of us are able to dis- possess ourselves of such specimens. It is not, however, my intention, in troubling you with this communication, to treat, at any length, on the Colorado Potato-beetle, for your September number (1877) contains an interesting article on the natural history of that garden pest from Mr. Rye, amply sufficient for your purpose at the present time. I say at the present time, for if the insect reaches your shores in any numbers, and if it breeds thereon, you may be glad of hints from those of us who have been overrun by this unconquerable enemy, and who have spent nights in an attempt to devise some plan for its extermination, and days in an endeavour to carry out such plan if regarded as at all feasible. The beetle is commonly called the Potato-beetle, but it by no means follows that that all-important esculent is alone subject to its attacks. I think it will be found that, under certain circumstances, it is omnivorous, and that, at all events, it will not succumb to starvation even where potatoes are not grown, provided other vegetables are at hand. For instance, where the egg-plant, Solatium melon- gena, is cultivated, my experience induces the belief that the beetle prefers this plant even to the Solatium tuberosum. It also attacks, although less ravenously, tomato and pepper plants, and, somewhat singularly, the latter in preference to the former. Inasmuch however, as these three plants are grown only on a small scale, hand-picking, the most effectual method of removing all insect-pests, can be resorted to ; and therefore the beetles do not, as in the case of potatoes, at the period of hybernation, burrow in their neigh- bourhood, and, as a further necessary consequence, do not emerge therefrom in the spring. Where hand-picking, from the large space to be traversed, is impracticable, Paris green is the only panacea ; the powder being mixed with water in a pail and sprinkled over the plants by means of a whisk. There is, however, a principle of compensation pervading nature, which has a tendency to check the ravages of noxious insects. Thus, with the advent of the Potato-beetles into Canada, there appeared, attendant upon their flight, large quantities of lady-birds, the Coccinella novemnotata, and others, with the object of preying on their eggs. And it should be noted, lest friends and foes be involved in simultaneous destruction, that the eggs of these two insects are very similar in appearance, being much the same in size and shape, of the same colour (deep orange), and deposited alike on the under-sides of the leaves of the plants on which the insects feed. And now we are told of another enemy of the dreaded beetle, — the Lydella doryphora, — to which allusion was recently made at a meeting of the Toronto Entomological Society, by its president, Mr. Brodie, in the following terms: — "It is by far the most reliable and valuable of all the enemies of D. decem- lineata ." When the Colorado Beetles make their unwelcome appearance in England — far distant be the day ! — I would recommend the enactment of a law for the preservation of rooks ; for, if I mistake not, those Corvi will be found most useful coadjutors to children in a potato-patch. These beetles are seen more frequently on the wing in the day-time than any other Coleoptera I am acquainted with, and present a some- what brilliant appearance in their flight. It may hap that the English climate will prove too damp, and the soil, in winter, too moist for their comfortable hybernation, but these conditions should not altogether be relied on : they will be upon you in time, just as the Scotch thistles have become an "institution" in the United States, and the English Cabbage Butterfly, Pieris rapiv, has become accli- matized in Canada. By the way, par parenthlse, while alluding to mi- grations, I noticed a communication from A. Wyles, p. 188, respecting some eggs he "obtained in the village of Roundhay, near Leeds," and which he supposes to be those of the Red-winged Starling. He describes the eggs as being of "a greenish grey, streaked with deep yellowish brown." I have none of these eggs by me at present, but Wilson informs HARD WICKE 'S SCIENCE- G OS SIP. us that they are " of a very pale light blue, marked with faint tinges of light purple, and long straggling lines and dashes of black." The Stitrnus predatorius is very common with us, and up our lakes hundreds of them may be seen of an evening on the rush- beds, just as I have seen the common starlings in England, where I have killed a dozen or more at a shot. While submitting my notes on the parasites of the Colorado Beetle, it occurs to me that perhaps a few more instances of the principle of compensation may not prove uninteresting. We have in Canada a great variety of Ichneumon- flies, from the large Pimpla lanator, with its four- inch borer, to the Ichneumon minntiis, each in its own peculiar way, whether by piercing the living insect, or its egg, doing its providential work in the destruction of hurtful life. Some time ago my eye was attracted by the eccen- tric motions of one of the larger steel-blue Ichneumons that was flying round and round a currant-bush in my garden, ever and anon darting at an object which, on approaching it, I found to be a spider in her web. The contest, for such it was, was a long one, and put me in mind of the description of an arena-fight between a retiarins and a sccutor. The latter, on this occasion, was victorious : the rete proved an in- sufficient protection, and the fuscina, or ovipositor, was thrust into the victim's body, with what result is well known to naturalists. On another occasion I saw one of our larger grass- hoppers, Locusta Carolina, struggling in apparent agony and certain helplessness on the ground. On examination I discovered a small ichneumon, not much larger than a winged ant, upon its body, intent on the insertion of its ovipositor, and although the fly was so much smaller and so much weaker than the unhappy grasshopper, the latter was unable to make use of its powerful legs or its wide expanse of wings as a means of escape. Another singular parasite, if parasite it may be called, is the Hair Worm, Gonlins. I once obtained two of these Abranchiata from the body of a large spider — a somewhat uncommon habitat. These worms were tightly rolled up into small balls of the Gordian-knot type, and were, when unfolded, only about two inches each in length. At another time I found one of our common crickets, the Acheta abbreviata, with a Hair Worm curled around it. Whenever the miserable insect made an effort to release itself from the coils of its tormentor the latter lashed itself into apparent fury, and seemed to paralyze its victim until at length it accomplished its horrible design. Are these egg-depositing operations painful to the subject ? It would be interesting if observers would state their opinions, and give us the results of their observations, on this interesting subject. Ontario. V. Clementi, B.A. 223 SOME REMARKS ON HORSE-TAILS. THE Horse-Tails compose the order Equisetaccce, and this order of Cryptogams is a very inte- resting one, both as regards the structure of the plants contained in it, and the curious hygrometric move- ments of their spores. The stem is underground, and in the spring sends up branches, some of which are barren, while others bear the spores. The branches are hollow, except at the joints, which are numerous ; at these points the different segments of the stem are separated by a sort of cellular membrane. Each joint likewise terminates in a sheath, which is membraneous, and embraces the base of the succeeding joint. The branches are fluted, and the sheath at its upper extremity is cut into teeth, the number of which corresponds, or bears some simple proportion, to the flutings on the stem. These plants are devoid of true leaves ; but the latter are represented by branchlets, which are of a green colour, and often assume a verticillate arrange- ment. A very interesting microscopical object is furnished by the cuticle of the Horse-Tail — the sto- mata being seen with great clearness under a mode- rate power. The epidermis is likewise peculiar, on account of the large quantity of silex which it con- tains ; this is so abundant in many species that they have been used by the Dutch housewives for polishing brass. The most interesting points, however, about these plants is their fructification. All the branches are not fertile, but those that are bear at the terminal extremity a cone-like body, which, on examination, is found to consist of a great number of disks, more or less polygonal in outline, borne in a peltate manner upon a central stalk, by which they are attached to the central axis. On the under surface of these disks the spore-cases are arranged, and these discharge their contents (the spores) by a lateral slit, which looks towards the axis of the plant. The spores themselves are more or less rounded bodies, each provided with two filaments called elaters, and to the contraction and expansion of these the move- ments of the spores are due. The elaters end in club-shaped extremities. If the end of a branch of Equisetum bearing fructification be shaken gently on to a glass slide, and the latter be then breathed upon, and placed upon the stage of a microscope of low power, the spores will be seen to be undergoing the most curious movements. Some will be quite closed up, the elaters being so closely applied to the spores as to be scarcely distinguishable ; others, again, will be seen gradually unfolding the filaments, and a few may be observed to move with a sudden start, as it were, from the contracted state of the elaters to that of full expansion. The ultimate cause of this move- ment is quite unknown. That it depends upon the 224 HARD WICKE 'S S CIENCE - G OS SI P. amount of moisture with which the spores are sur- rounded there can be no doubt. Most probably it takes place by the contraction and expansion of the cells of which the elaters are composed, under the varying influence of the moisture contained in the air. The phenomenon is a very curious one, and should by all means be seen by every one who possesses a microscope. Fig. 188. Sporangium of Equisetum arvense. Fig. 189. Transverse section of Fruit- spike of ditto (twice nat. size), snowing how sporangia are attached to the axis. Fig. 190. Fruit spike of ditto, twice nat. size. Fig iqi. Fragment of the branched stem of Equisetum fialustre. Doubtless the spores are endowed with this suscep- tibility to hygrometric changes in order to ensure their distribution, and thus the species is continued in distant places. The spore on germination gives origin to a cellular structure called a prothallus, upon which the antheridia and archegonia are borne — much as in Ferns. In former periods of the world's history the Equisetacese occupied a much more pro- minent situation in the vegetable kingdom than they do at present. If we turn to the Palaeozoic strata we shall find in the Carboniferous formation of that period abundant evidence of this. The reed-like fossil Calamites most likely belonged to this order, and the vegetation of the Carboniferous period is made up of the genera Lepidodendron, Stigmaria, Sigillaria, &c, belonging to the Lycopodiacea?, Equi- setacere, and allied orders. This order also affords an instance of what has been called homoplasmy, or likeness between plants belonging to totally different orders, and even different divisions of the vegetable kingdom. Thus the Equi- Fig. 192. Spore of E. arvense, showing elaters clasped round (mag.). Fig. 193. Spore with four elaters un- coiled (mag.). Fig. 194. Fertile stem of Equisetum arveuse, springing from rhi- zome (natural size). setacerc of the acrogenous sub-kingdom has its coun- terpart in the Hippurus, or Mare's - Tail, which belongs to the division of flowering plants. It is often the case that botanical collectors give a great deal of attention to the Ferns and Mosses, and treat with comparative neglect the humble Cryp- togams, including the Equisetacea;. This neglect seems to be unmerited ; for, although the flowering plants, doubtless, at first sight, form a more attractive field for the display of the energies of the popular botanist, yet any one who will take the trouble to work at the Equisetacea; and allied orders, with lens and microscope, will find, in the adaptation of means HA RDWI CKE 'S S CIE NCE - G O SSI P. 225 to ends and delicacy of structure, quite as beautiful a series of phenomena as is presented by the structure and economy of the flowering plants. H. W. S. NATURAL HISTORY IN THE SEVENTEENTH CENTURY. F. Kitton, Hon. F.R.McS. IN the eighth volume of Science-Gossip we called the attention of our readers to the Bestiary of Philip de Thaun, written in the twelfth century, during the long period that had elapsed between the publication of that treatise and the work I now propose to give some extracts from, we might expect to find a consi- derable advance in Zoological knowledge. Such, however, is not the fact, not the slightest attempt seems to have been made to verify the descriptions of the early writers, and their accounts of monsters are implicitly believed in. This book is much more pretentious than the Bestiary, as the following verbatim copy of the title- page will show : — " The HISTORY OF fovre-footed Beastes, Describing the true and lively figure of every Beast with a discourse of their several Names, Conditions, Kindes, Vertnes (both naturall and medicinall), Countries of their breed, their love and hate to man- kinde, and the wonderfull work of God in their Creation, Preservation, and Destruction. Necessary for all Divines and Students, because the story of every Beast is amplified with Narrations out of Scriptures, Phylosophers, Physicians, and Poets : wherein are declared divers Hyerogliphicks, Emblems, Epigrams, and other good Histories, collected out of all the Volumes of Conradvs, Gesner, and all other Writers to this present day. By Edward Topsell. London : Printed by William G. laggard. 1607." The book is a small folio, and contains about 900 pages (including the "Epistle Dedicatory" and index.) It is dedicated "To THE REVEREND AND RIGHT Worsiiipfull Richard Neile, D. of Divinity, Dean of Westminster, Master of the Savoy, and clearke of the A'iug his most excellent Majesties closet all felicity, Temporall, Spirituall, and Eternall. The library of English Bookes and Catalogues of writers (Right Worthy and Learned Dean, my most respected Patron) have growne to the height not only of a iust-number, but also innumerable : and no maruell, for God himself hath in all ages presented lerning in the next place to life, for as life is the Ministereall Governor, and moouer in this world, so is learning the Ministeriall Governor, and moouer in life .... As life is different, and diuers according to the spirit wherein it is seated, and by which it is norished, as with a current, as also is Learning according to the last vse and practise of rules, Canons, and authors from whan as from a fountaine it taketh both beginning and encrease euen as the spirit of a Serpent is much quicker than the spirit of an Oxe, and the learning of Aristotle and Pliny more lively and lightsome then the knowledge of other obscure Philosophers vnworthy to be named, which either through enuie or Non proficiencye dursl- neuer write." The dedication then proceeds to dilate upon the Fig. 105. Sphinga, or Sphinx Ape. desirability of a knowledge of the history of animals which the writer thinks will tend to make mankind better. "Were not this a good perswasion against murder, to see all beasts so to maintaine their natures that they kill not their owne kind. Who so vnnaturale and vnthankfull to his parents, but by reading how the young Storkes and Wood-peckers do in their olde age feed and nourish them, will not repent and amend his folly and bee more naturale '? What man is so void of compassion that hearing of the bounty of the Bone breaker Birde to the young Eagles, will not become more liberale ? Where is there such a sluggard and drone that considereth the labours, paines, and travels of the Emmet, Little bee, Field mouse, Squirell, and such others that will not learne for shame to be more industrious and set his fingers to worke ! Why should any man living fall to do euill against his conscience, or at the temptation of the Deuill seeing a Lyon will never yeeld. Mori scit unici nescit — and seeing the little 2 26 HARD J VI CKE 'S S CIE NCE ■ G 0 SSI P. Wren doth fight with an Eagle contending for soueraignty ? Would it not make men to reverence a good king set over them by God ? Seeing the bees seek out their king if he loose himself, and by a most sagacious smelling sence never cease untill he be found out, and then beare him upon their bodies if he be not able to fly, but if he die all forsake him. And what king is not united to clemency and dehorted from tyranny, seeing the king of the bees hath a sting but never useth the same ? . . . . I have followed D. Gesner as neer as I could, I do professe him my author in most of my stories, yet I have gathered vp that which he let fal, and added many pictures and stories as may apeare by conference of both together. In the names of the beasts I have not swarved from him at all. He was a Protestant Physitian (a rare thing to find any Religion in a Physitian) although Saint Luke a Physitian were a writer of the Gospell — Your Chaplaine in the Church of Saint Buttolphe, Aldergate, Edward Topsell." In the "Epistle to the Learned ReaJas'' he gives "the Catalogue of the Authors which have wrote of Beasts," viz., Hebrew, Greek, Latin, Ger- man, Italian, French, and the following English writers, Edward Wooton, William Turner, M.D., John Estwyck, John Falconer, M.D., Thomas Bonham, M.D. Thomas Gybson, M. D. The Rev. E. Topsell adopts a very simple arrange- ment, viz., an alphabetical one, thus avoiding all the troubles of orders, families, and genera. The first animal he describes is the Antelope. "The Antalope called in Latin Calopus, and of the Grecians Analopos or Aptolos. Of this beast there is no mention made among the auncient writers except Suidas and the Epistle of Alexander to Aristotle, interpreted by Cornelius Nepolius. The vertues of this beast are vnknowne, and therefore Suidas saith an Antalope is but good in part." The woodcut represents the animal with slightly curved horns conspicuously serrated on the upper margins and a long tooth in the lower jaw. The next beast described, according to the author's arrangement, is the Ape, of which he remarks that it "is held for subtell, ironical, rediculous, and un- profitable beast, whose flesh is not good for meate as a sheep, neither his backe for burthern as an asses, nor yet commodious to keep house like a dog, but of the Graecians termed Gelotopioon, made for laughter. And as the body of an Ape is ridiculous by reason of an indecent likeness and imitation of man, so is his soul or spirit ; for they are kept only in riche men's houses to sport withall, being for that cause easily tamed, following every action he seeth done, even to his owne harm, without discretion." The female, the writer tells us, "mostly has twins, whereof they loue the one and hate the other ; that which they loue they beare in their armes, the other hangs at the dam's back, and for the most part she killeth that which she loueth by pressing it to hard r afterwards she setteth her whole delight upon the other. The male and female abide with the young one, and if it want anything, the male, with fist and irefull aspect, punisheth the female. When the moone is in the waine they are heauy and sorrowful, but they leap and rejoice at the change, for, as other beasts, so do these feare the defect of the starres and planets. They are full of desimmulations and imitation of man ; they readiler folow the euile then the good they see. They loue conies very tenderly, for in England an old ape (scarse able to goe) did defend conies from the weasell, as Sir Thomas Moore reported. They feare a shel-fish and a snaile very greatly, as appear- eth by this history. In Rome, a certaine boy put a snaile in his hat and came to an Ape, who, as he was accustomed, leaps upon his shoulder and took off his hat to kil lise in his head, but, espying the snaile, it was a wonder to see with what hast the Ape leaped from the boyes' shoulder and in a trembling manner looked backe to see if the snaile followed him. A Lyon ruleth the beasts of the earth, and a Dolphin the beasts of the sea. When the Dolphin is in age and sicknes, she recovers by eating a sea-ape j and so the Lyon by eating an ape of the earth, and therefore, the Egyptians paint a Lyon eating an Ape to signify a sicke man curing himself. The hart of an ape, sod and dried, whereof the weight of a groat drunk in a draught of stale Hunny sod in water, called Mellicraion, strengthened the heart, embolden- eth and driveth away the pulse and pusillanimity thereof, sharpeneth ones understanding, and is soueraigne against the falling euill." The following is a list of Apes described by Topsell : — Vulgar ape, monkey ape, marline ape, callitriche ape, Persian ape, baboun ape, Tartarine ape, satyre ape, monster ape, Norwegian ape, pan ape, sphinx ape, Sagon ape, ape called beare ape, ape called foxe ape. Figures are given of these forms. We need scarcely say that they were in the majority of cases evolved from the artist's inner conscious- ness. As a specimen, we give a copy of the head of the Sphingu or Sphinx ape. Of this species the writer gives the following description: — "The Sphinx, or Sphiiiga, is of the kind of Apes hauing his body rough like Apes, but his breast, up to his necke, pilde (bald) and smooth without hayre : the face very round, yet sharp and picked, hauing the breasts of a woman, and their fauor or visage much like them." To the utter confusion of the anti-Darwinites, we quote the following from the history of a Satyre ape, clearly showing the existence of an intermediate form. Topsell's authority for this is unimpeachable, for he says: — " S. Ierom, in the life of Paul the Eremite, reporteth there appeared to S. Antony an Hippo- centaurc, such as the poets describe, and presently he HARDWICKE'S SCIENCE-GOSSIP. 227 saw in a rocky valley, adjoining, a litle man hauing croked nostrils, homes growing out of his forhed, and the neather part of his body had goat's feet : the holy man, not dismayed, taking the shield of faith and the breast-plate of righteousnesse, like a good souldior of Christ, preased toward him, which brought him some fruites of palmes as pledges of his peace, upon which he fed in the iourney, which same Antony perceiving, he asked him who he was, and received this answer : I am a mortall creature, one of the inhabitants of this desart, whome the Gentiles (deceued with error) doe worship and call Fauni, Satyres, and Incubi. I am come in ambassage from our flock, intreating that thou wouldst pray for vs unto the common God who came to saue the world : the which words were no sooner ended but he ran away as fast as any foule could fly. And least this should seame false, vnder Conslantine, at Alexandria, there was such a man to be seene aliue, and was a publike spectacle to all the world, the carcase whereof, after his death, was kept from corruption by heat through salt, and was carried to Antiochia that the Emperor himself might see it." " Satyres are very seldome seene, and taken with great difficulty, as is before saide, for there were two founde in the woods of Saxony, towards Dacra, in a desart, the female whereof was killed by the darts of the hunters and the biting of dogs ; but the male was taken alive, being in the vpper parts like a man, and in the neather parts like a goat, but all hairy through- out : he was brought to be tame, and learned to go vpright, and also to speak some wordes, but with a voice like a goat, and of this kind there are store in Ethiopia." " Of the Asse. — Asses are of very foolish condicions and slender capacity, but yet very tame, not refusing any manner of burthen although it break his back. Ammonianum was in such love with an asse, and holding him of so great capacity, that he had one continually to heare his lectures in Phylosophie. Callen affermeth that an ass understandeth, genus species et individuum ; because, if you shew him a camell that never saw one before, he is terrified and cannot endure his sight ; but if he have been accus- tomed to such a sight, if you shew him never so many he is not moved at them. In like sort hee knoweth men in general, being not affraid of them ; but if he see or heare his keeper he knoweth him for his keeper or maister. The asse being overcome with melancholy humour naturally looketh for the hearbe Citterach, or Finger- feme, to cure him. The asse is neuer at peace with the cro, because he longeth for the asse'seyes ; likewise the bird Salem, for when the asse commeth to the thornes to rub himselfe where the same bird buildeth her nest, the asse spoyleth it, wherefore the said bird maketh continual assault vppon him. In like sort the Colota, or Stellio, for it sleepeth in the mangers, and creepeth up unto the asse's nose to hinder him from eating. The woolfe is also an enemy to the asse, for he loveth his flesh, and with small force doeth he compasse the destruction of an asse ; for the blockish asse when he seeth a woolfe layeth his head on his side that so he might not see, thinking that because he seeth not the woolfe the woolfe can- not see him ; but the woolfe vpon this advantage setteth vppon the beast on the blind side and easily destroyeth the courageless asse. Another argument of an asse's stupidity is that he careth not for his own life, but will with quietnesse starve if meal be not laid before him. Wherefore it is apparent that when a dull scholler not apt to learne is bid to sell an asse to signifie his blockishnes, is no vaine sentence ; therefore they which resemble asses in their head, round forehead, or great face, are said to be blockish ; in their fleshy face, fear- full ; in broad or great eies, simple, and like to be mad ; in thick lips and the vpper hanging over the nether, fooles ; and in their voyce contumelius and disdainfull. . . . The Ieiaish people, who like asses, could not understand the evident truth of Christ in the plaine text of Scripture, wherefore our Saviour secretly vpbraided their dulnes when he rode upon an asse. Touching such medicinall vermes as have been tried and found to be in the several parts of asses in learned and approved writers, now in this history they shall be briefly remembred, and so this narration finished." These remedies would occupy more space than the editor would grant me, an example must therefore suffice. "If any be hurt by the starres wash them in asses stale mingled with Spiknard, the same force has it against comes and all hardness or thicknesse of skinne." " Of the Indian Asses. — It is questionable whether the Monoceros, commonly called a Vnicorne, the Rhinoceros, the Oryx, and the Indian asse be one beast, or diuers ; for the Vnicorne and Rhinoceros haue the same things attribvted to them in stories, and differ in verie few reports, both Aristotle, Pliny, and ^Ehanus coyntly agree that they differ from all other whole-footed beasts, because they haue one home in the forehead, and so have also the Rhinoceros, Monoceros, and Orix, but the Indians cal a Vnicorne Cartagono ; and the home so highly prized at this day is thought to be of the Rhinoceros, but ^Ehanus and Philes acknowledge no other Vnicorne, but the Indian Asse, who in bignes equalleth a horse among the Indians, being all white on the body, but purple- headed or red (as some say), black eyes, but Volatter- ranus saith blew, hauing one home in the forehead, a cubit-and-a-halfe long, whose upper part is red or bay, the middle black, and the neather part white, wherein the kings and mighty men of India vse to drink, adorning it for that purpose with sundry bracelets, precious stones, and works of gold holding for truth that all those which drinken in those homes 228 HARDWICKE'S SCIENCE-GOSSIP. shall be freed from annoyance of incurable diseases, as conuulsions, the falling euile and deadly poi- sions." We find two other species of asses described in this veracious history, viz. , the Alborach and Axis ; the former is, the author says, "the animal whereupon the Turkish priestes and blasphemous idolaters perswade the silly pilgrims of Media that Mahomet was carried up to heaven." Of the Badger, otherwise called a Brocke, a Gray, or a Bauson. — The Rev. E. Topsell most unkindly exposes the ignorance of this animal ; he commences his description by saying, " The Badger could neuer find aGreeke name. The Italians call a Badger Tasso ; the Rhetians, Tasch ; the French, Tausson, Taixen, Tasso//, Tesson, and sometimes Grisart (for her colour), sometimes Blareau (now Bla/rea/i), and at Parris Bedo/io ; the Spaniardes, Tasugo, Texon; the Ger- mans, Tachs, orDaxs; the Illyrians, Gezweez. Badgers are plentiful in Naples, Sicilly, Lucano, and in the Alpine and Heluitian coasts ; so are they also in England. In Italy and Germany they eate grayes flesh, and boil it with peares, which maketh the flesh tast like the flesh of a Porcupine. The flesh is best in September, if it be fat." (To be co/Uii/ued.) AN EDITOR'S HOLIDAY IN THE WEST OF IRELAND. ONE of the most bewilderingly lovely drives or walks in the West of Ireland is that from Westport to Cliefden. The distance is something over forty miles, and the road is tolerably good, although in many places chequered by acclivities and declivities. If walking, we should recommend the pedestrian to do the first eighteen miles to Leenane, which is, in our opinion, the most beautiful spot we visited. The road thereto lies over the mountains, and, after gradually as- cending three or four miles from Westport, we traverse the surface of a table-land, everywhere boggy and wet, and with pretty loughs or lakes studding its surface. Some of these loughs are very paradises of water- plants, and their margins are covered with the cool green leaves and exquisite white blossoms of the common water-lily. All round this table-land there rises a panorama of hills. Some of them may be called mountains, for they are three thousand feet in height, and their tops stretch upwards into the sky, so that the cloud scenery is mapped and patterned by their presence, and presents quite a different appear- ance to cloud-land in our own parts of the country. They have a riven and a weird look, these ancient hills, for they are composed of the very hardest rocks known to geologists— namely, the metamorphic rocks. The Silurian sandstones and slates and limestones, most of which once contained fossil remains, have been so completely altered by heat that scarcely a trace now remains of a fossil, and yet their geological map — for this country has been geologically surveyed by some of our ablest men — shows the whole region in a variously coloured pattern which indicates how different is the variety of rocks. The white lines on the map, which represent faults or vertical crackings and slippings of the solid rock, are exceedingly numerous. Along the line of some of these faults the valleys now extend, for they have proved the weak places where weathering action could be best exerted. The outlines of these grand old hills have been sculptured by Father Time. They are amongst the oldest of our British mountains, and no country in the world has such ancient mountains as Great Britain and Ireland ! For millions of years the storms of different climates have gathered around these ancient peaks, and have spent their fury upon them not in vain, for it is chiefly to the combined and continued action of the weather that their very shapes are now due. Fig. 196. Terraced Limestone Hills, Glen Colombkill. From the table-land we have mentioned, a peaty stream called the Erive makes its appearance, at first so small that a boy could jump across it easily. As we pass along the uneven road, the stream gathers strength from its numerous tributaries, all of them after a rainy night seaming the sides of hills like silver threads ; and anon it gains in violence and volume and brawls over its rocky bed, which latter widens as well as deepens as the stream descends to- wards the sea. Here and there it throws its volume of seething water over some rocky terrace as a water- fall or cataract, and occasionally its restlessness seems to be checked by some deep pool which the brown, peaty-coloured water causes to appear of unfathom- able depth. Everywhere, however, along the route of the stream, even in these elevated regions, there was growing such a wild luxuriance of that most magni- ficent of all British and even exotic ferns— the Royal Flowering fern (Osmunda regalis) — as we have- never before seen, except perhaps once along the HARD WICKE'S SCIENCE- G OSSIP. 229 southern side of Barton Broad, in Norfolk. The tall fronds rise to a height of five and six feet, with their brown spore-bearing branches rustling to and fro in the mountain wind. As we passed along the road we saw numbers of ordinary marsh plants, but we were on the outlook for one particular flower which occurs nowhere else in the British Islands, except these western coasts of Ireland. It is one of the heaths, known as St. Dabeoc's (named after an Irish saint), and formerly christened by botanists Dabeocia polifolia, although now, in honour of a Scotchman, its generic name has been unmu- sically changed to that of Mcuzicsia. By and by we came in view of this lovely heath. Great was our joy, for we had never seen it before except in the pages of Sowerby. The reader may well pardon the delight of an ardent botanist at the first sight of this plant, growing in luxuriance in its wild abodes, for its beauty is not exceeded even by the magnificent heaths which have been imported into our green- the primitive village and capital inn of Leenane is situated. No better spot for the tourist to rest a few days could be selected than this. Along one moun- tain pass he can proceed to Kylemore Lough, which is, perhaps, the loveliest in Ireland, with the excep- tion of one of the lakes of Killarney, for Kylemore Lough has not only rugged and bare mountains rising around it on every hand, but these are softened down near the margin of the lake by rounded bosses, festooned with honeysuckle, and bramble, and wild rose, the haunt of a thousand plants dear to the botanist, and now bright with three or four species of heath, including an abundance of our prized Dabeocia. Shrubberies of hazel bush, willows, alder, and larch come down to the very edge of the water, while above them stand stately groups of Scotch fir, whose rough stems gather 'all the light that is in the sky and reflect it in the very warmest of colours. Rarely have we been more pleased with a situation than that of Kylemore. At one end stands the magnificent Fig. 197. Distant View of the Terraced Hills of the Burren, as seen from North of Galway Bay. houses from the Cape of Good Hope and Australia. Its rose-coloured, bell-like flowers are about three times the size of those of our English heaths, which latter grow side by side with it, as if for the sake of comparison. After some miles of tramping, the pedestrian will discover that he has passed the highest point of the water-shed, for the streams are now flowing in a different direction. The mountain scenery becomes grander as he proceeds, the mountains appearing to present themselves one after another like the billows of a stormy sea. At length a glimmer of light appears between the hills where the valley ought to be, and we gradually approach Killery Bay. This is a fiord like Clew Bay, extending from the sea sinuously into this mountain land for a distance of twelve or fifteen miles, the mountains rising in some places quite steeply from the water. Various moun- tain streams pour themselves into it at the head where seat of Mr. Mitchell-Henry, M.P. for Galway, who has done good work in the neighbourhood by in- ducing the peasantry on his estate to drain the bog lands, so that they are being rapidly^converted into fertile fields. From Leenane there are beautiful roads to Delphi, through Glen Fee, and to the Pass of Saal Ruck, a walk of about six or seven miles after having crossed Killery Bay. The bay is full of fish, especially mackerel and whiting, and this delicate food can be obtained in almost unlimited quantity. From Leenane to Cliefden is about twenty-four miles, and Kylemore Lough may be taken on the road. Towards Letter- frack we were particularly struck by the signs the landscape presents of the influence which moving ice has exerted in this region. During all our journeyings we had been beset by the strongest evi- dence of this kind, but nowhere is it more plainly seen than at Letterfrack. Husre hillocks of refuse 230 HARD WICKE'S SCIENCE- G OS SIP. are composed of fragments of rocks of almost eveiy size of bigness and smallness, each fragment polished and scratched by the ancient ice-sheet which long ago disappeared. Low rounded bosses of rock, called roches moutonnk, had been seen on each side of the road all the way from Westport, many of the latter covered with scorings and strice, all of them con- verging in the direction of the valleys. There can be little question that, before these bays or fiords were filled with salt water, they had been filled with ice, and had very probably been deepened by the mechani- cal erosion of the moving ice-sheets towards those deeper and lower parts now covered by the waters of the Atlantic. Near Letterfrack we came upon some limestones which had been altered by heat until they assumed the appearance of loaf-sugar. Some of the lime- stones have been coloured green, and the well-known "green marbles" of Connemaraare obtained from this deposit. Of them many exquisite ornaments are manufactured and sold at Clifden, the deposit crop- ping out along the hillsides. A grander country for the geologist, and especially for the physical geologist, could hardly be selected than this, for there are so many varieties of rock formations, particularly of the older and more primitive rocks, that at every few hundred yards the student comes upon a new stratum on which he feels forced to exercise his hammering abilities. Perhaps none of them struck us more than the outcrop of what had once been a Lower Silurian conglomerate, that is to say, a shingle or gravel bed, which had accumulated as such in one of the earliest geological periods. The pebbles of this bed were formed of various kinds of granite, and they had been cemented together in a sandy and clayeykind of matrix, until the entire stratum had become solid. Then this bed had been exposed to the influence of heat and the enormous pressure of overlying masses, so that both the pebbles and the material in which they had been imbedded had been metamorphosed together. No more instructive illustration of the great changes effected upon the configuration of the earth's surface by the agency of heat could have been afforded. The only drawback to the geologist whilst studying these rocks is the absence of a donkey-cart and a good strong donkey, for his knapsack soon gets full and his pockets weighed down, and, worst of all, he is obliged to leave specimens behind him that he would otherwise gladly carry away to gloat over and study during the winter months. We reached Cliefden late in the evening, when the dusk was falling around us, and the neighbouring hills were gradually shading off into immaterial obscurity. We rose early next morning in order to catch the eight o'clock mail-car for Galway. Punctually to the moment, a lumbering old car, with two Irish horses harnessed thereto, made its appear- ance at the hotel door, an Irishman perched as if lie were on the top of a chimney-pot in front of the machine. The first part of our way led us by the side of the well-known and much-talked-of Twelve Pins or Bens, both the word "Pin" and "Ben" (which is common in Scotland) meaning head or peak in the Celtic language. The names, in this instance, have reference to a group of twelve tall mountains which stand clustered together in the wildest part of Connemara. The road to Galway winds in and out of the valleys formed by and along the base of the mountains, so that we had magnificent mountain scenery on the left-hand side, whilst, on the right, there extend, for miles, a series of lakes like "pearls on a string. " Some of these lakes, as, for instance, Lough Inagh and Glenda Lough, are of considerable size, and have islands in their midst upon which are the ruins of many an old castle or keep. At Ballyna- hinch, in one of the largest of these islands, we behold one of the finest of these castles, that of the Martins, an Irish family which once possessed almost regal power in this part of the country, and owned no fewer than 200,000 acres of land. At Recess there is a capital hotel, much frequented by salmon and trout fishers, their prey being abundant in the lakes and rivers of the neighbourhood. Here, too, the scenery becomes more wooded ; but the drive from Recess to a village called Oughterard is one of the wildest and most dismal that it is possible to imagine. We saw it under characteristic conditions. There was a drizzling rain descending from the mountain clouds all the way, and it seemed to bring out the misery and the sloppiness and the bogginess of the low grounds in all their intensity. As we approach Galway the country becomes more cultivated. The roadsides and walls are perfect para- dises of ferns, among which Scolopendrium vidgare, Asplenium trichomanes, and Ceierach officinarum, are most abundant. There are signs of greater wealth, and here and there mansions make their appearance with rich woods around them. Lake Corrib stretches away to the very heart of the Twelve Pins, some forty miles away, and a steamer plies up and down the water during the summer months. At Galway bridge we could see from the parapets the salmon in scores, three or four thick, lying at the bottom of the stream, waiting for the freshets, so that they could pass up the salmon leap and through the loughs into the mountain streams above. A day or two may be agreeably spent in Galway, especially in exploring that outlying suburb called the " Claddagh," where the Spanish settlers of 300 years ago still live apart from their Irish brethren, with a mayor of their own, elected every seven years, and governed by their own unwritten laws (which are obeyed much more strictly than the written laws of the Saxon in Galway town). We left Galway by the steamer which crosses the bay to Ballyvaughan. The day was intensely hot, and the atmosphere seemed full of light. Hence the white limestone-terraced hills of the Burren would HARDWICKE'S SCIENCE-GOSSIP. 231 have been unbearable for one's eye to gaze upon had it not been for the oases of greenery here and there. We think there can be little doubt that these rock- terraces are due to weathering, and that they do not represent successive sea-beaches, as some imagine. The terraces appear to coincide with the outcrop of the limestone beds, and the terraces are most pro- nounced towards the tops of the hills, the debris lying along the bases having greatly protected the lower strata from meteorological erosion. The rain- fall hereabout is 54 inches in a year, and as it mostly descends in a fine drizzle, nearly every drop must tell upon the limestone, and its weathering action must therefore be almost complete. We stayed a few clays at Lisdoonvarna, a pleasant green country, richly undulated, where the Yoredale shales abut against the Carboniferous limestones, and the water percolating through the former dissolves away its iron pyrites, so as thus to form "Spas" of notable benefit. Dr. Westropp, the kind and genial physician of the place, has made a remarkable living collection of all the varieties of the Hart's-tongue ferns found growing in the fissures and joints of the Carboniferous limestone near Black- head. These joints are very numerous, and in each of them we saw growing a wonderful luxuriance of Maiden-hair (A. capittus-veneris} and other ferns ; while on the cliffs the surface was matted with Dryas octopetala (still in flower) ; and patches of Statice spathitlata grew here and there, close by denser tufts of Aspleniiini marinum. Near Mohr Cliffs we found Lastrea recurva completely covering a bank for a short distance. These Cliffs are a magnificent spectacle, rising quite perpendicularly for nearly 600 feet out of the sea. They are formed of Lower Carboniferous rocks, the thin flagstones of which are completely covered with worm or molluscan tracks. We should be delighted to convey to our readers even a faint idea of the pleasure we enjoyed from the detailed exploration of the limestone rock- gardens, surely unknown the whole world else- where, and of the loveliness of the green western Irish land, and of its balmy atmosphere, which one can almost taste ! The Carboniferous limestone underlies the whole country hereabout — a land bare, almost as a wooden table, of grass, and yet richly feeding numbers of sheep. The real reason why sheep are able to feed over the limestone tract of the Burren hills, is that the rocks are so much fissured with the vertical cracks, in which grow the loveliest of wild plants, many of them rare to the botanist, and a profusion of such ferns as the Hart's-tongue, the Maiden-hair {Adiantum capilhis-veneris), the Ceterach, and many others. Various species of grass also grow in these chinks, and it is upon the latter that the sheep browse, and so the spectator is presented with the peculiar appearance of sheep grazing on what appears to be a region of the poorest and the baldest rock. MICROSCOPY, " New Forms of Animal Life ! ! " [vide Times report of Sir W. C. Thompson's paper on the official report of the Challejiger Expedition, August 21, 1878).—" Sir W. Thompson says that Mr. Holdich is illustrating most of the pelagic genera, these plates re- presenting several remarkable forms of 'shizopods/ to which they have given the name of Challengerida, as they seem to have hitherto escaped observation. Professor Hatchel is about to publish a splendid memoir of the Radiolari. Any one acquainted with Hatchel's classical work, ' Die Radiolariem,' would have some idea of what may be expected of that memoir. Mr. Moseby is at work on a most remark- able little series of coralloid forms of the Hydrogor, which he has named Hydrocorotmal, and on their strictures and relations Mr. Moseby's careful work, during the voyage and since their return [query, of the Hydrocorotmal '], had thrown quite an un- expected light. Professor Hatchel would describe the medusce. The Peliatozo would be described by himself (Sir W. Thompson). About twenty plates were cut stone (these will make a heavy book) illustrating the stalked crinoids. Professor Alexan- drac Ligussis was going on rapidly/with the Echiniden. Mr. Lyman was working at the Opherxides, and he expected Mr. Phere, of Upsala, to come over to ex- amine the Holtheridea, which he was going to describe under the general superintendence of Professor Lowe." A friend says I am mistaken, these are not new names, and if the following corrections are made it will be all right. For shizopod read rhizopod, Radio- lariem read Radiolarien, for Hydrogor read Hydrozoa (I still adhere to it that Hydrocorotmal is new), Opherxides is the same as OpIiiitridcF, and HoltJuridce is identical with Holoihuridce, and Professor Hatchel is vulgarly known as Haeckel. — F. K. Highbury Microscopical Society. — We are pleased to state that a Highbury Microscopical So- ciety has just been formed under the presidency of Dr. Alabone. Applications for membership should be addressed to the hon. secretary, Mr. R. B. Brind- ley, 37, Highbury Park, N. The opening meeting of the society will take place on Thursday, October 10th, at Harecourt Hall, St. Paul's Road, High- bury, with an exhibition of objects of a scientific nature, principally shown by the microscope. Tickets free on application. Measuring with the Microscope. — A very simple arrangement for measuring microscopic ob- jects has been invented by Mr. G. J. Burch, and fully described in the "Transactions of the Quekett Club," for July, 1878. It is as follows :— The body of the microscope is placed in a vertical position, and one of the forms of " Beales's " Neutral Tint Camera Lucida, placed as usual over the eyepiece, attached to the tube of the Camera, and at right 23" HARD WICKE 'S S CIENCE - G O SSIP. angles to it is a light rod, 'of any convenient length, upon which a graduated scale slides opposite to the thin glass in the Camera. On looking through the latter the object will appear to have the scale laid upon it, and its size can be easily determined. The rod upon which the scale is clamped should be graduated in order that the magnifying power of the objective may be ascertained and registered : this is ascertained in the following manner : — the divisions on the scale are adjusted to those seen on the stage micrometer, and its position noted for future reference. It is necessary the figures on the scale should be reversed. A goniometer scale for the measurement of angles can be easily substituted for the ordinary scale. The Miniature Microscope Lamp. -We have recently tried the above-mentioned lamp, just intro- duced by Messrs. How & Co., St. Bride-street, Ludgate Circus, London, and find that, although very much smaller than those hitherto in use, it affords a pure white light sufficient for all micro- scopic purposes. One of the advantages of its small size is the much less heat given off, a somewhat important matter, when a dozen or more lamps are burning simultaneously. It is fitted with the Improved "Hailes" shade; this in its original form, as most of our readers are aware, was that of a porcelain cylinder, with an aperture at the lower part, the rest of the light being obscured ; it was supported by a brass ring sliding on the upright rod of the lamp. One fault in this form of shade was that a great amount of light was visible above it, and generally on a level with the eye of the ob- server. In the new shade this has been obviated by the upper part being made dome-shaped, the eyes being thus effectually protected from glare. The shade is sup- ported by a "gallery" just below the burner; it is therefore always in position. The lamp, when not in use, is packed in a japanned tin case, about 3 inches in diameter, and 9 inches in height, and weighs under two pounds. The Painted Lady. — Have you ever observed a kind of metallic sound when this insect is on the wing? I also fancy it has a partiality for sandy patches on hedge-banks, especially under the shade of trees. It flies later in the evening than some other species, and is a bold insect — returning to the spot where an attempt has been made to capture it. — IF. M. C. C. S. Fig. 198. The Miniature Microscopic Lamp. ZOOLOGY. The Black-Throated Stonechat in Lanca- shire (Saxicola stapazina). — It is a pleasing duty to me to record the taking of a very beautiful specimen of what I consider an exceedingly rare bird in our neighbourhood {Saxicola stapazina). The specimen was shot by a friend of mine about the middle of May this year on the margin of the Bury and Radcliffe Reservoir ; and, though very mangled with shot, having a goodly number of 6's, it has been very well mounted indeed by my friend Johnson, of Prestwich. Considering the condition it was in from being killed with such large shot, I really doubted at one time whether it could be mounted ; however, it has been, and a valuable addition to our list of birds it is. We naturally ask ourselves now, if this bird is no native what is it doing here, and how came it to visit us? The most probable solution to this is, the Stonechat family are migratory, leaving us for more southern and western countries about the begin- ning or middle of September, returning to us in large flocks about the end of April or beginning of May ; and likely enough this specimen, being of the same habits as our Wheatear, has travelled along with a flock and reached our shores, whence he would drive inland in search of a mate. I have sought many works on British birds, but failed to find its mention ; and the only description I can find is in Cassell's "Book of Birds," vol. ii., p. 199. The bird I have is a male bird, in fine mature plumage, and in very good condition when shot. Its habits when alive, as noticed by several parties for a few days prior to its being captured, were very active, vigilant, and shy. It seemed to hoid itself aloof from any of the same order (Saxicola cenanthe). Cassell's de- scription of these birds in their native home is very interesting, and I here give an extract : — "Though they by no means avoid fruitful tracts or cultivated districts, these birds very decidedly prefer to take up their abode in mountainous or stony regions ; and are for this reason particularly numerous in Sweden, Southern Germany, and Switzerland ; in the latter country they are popularly known as Mountain Night- ingales, from the height to which they often ascend. Even the icy and rugged tracts of Scandinavia and Lapland seem to suit their requirements, and we have often seen them hopping nimbly over the glaciers in situations where no other living objects were dis- cernible. Individuals inhabiting more southern lati- tudes display the same liking for barren grounds, and are usually seen in localities so sterile and arid as to appear totally incapable of affording them a sufficient supply of the insects upon which they subsist ; their disposition is lively, restless, and very unsocial ; only during their winter migrations do they seem to com- mingle with others of their species, even when cir- cumstances compel a certain amount of neighbourship ; each bird lives for itself, without appearing to have HARD WICKE'S SCIENCE- G OSS IP. 233 the slightest interest in the proceedings of others in the vicinity." In order to more clearly identify this spe- cimen from our Wheatear {Saxicola cenantke), I have had a male specimen of the latter mounted along with it, from which it will be seen there is a very wide difference ; the colours of S. stapazina are, on the head, nape, and back, white, slightly tinged with rust yellow ; on the belly and breast dulled white ; the throat and cheeks, from above the eyelids, including the ear-coverts, are jet black, quite as much or more than the Pied Wagtail (Motacilla Yarellii) ; the upper and under tail-coverts are white ; the two outer tail feathers on each side are white, slightly edged and tipped with black ; while the three next on each side are white, slightly edged (but not tipped) with black, the middle tail feathers are entirely black, the wings are a beautiful glossy black, as are also the legs and toes. I did not take the dimensions of the bird when dead, but it is a trifle smaller than S. iinanthe, as will be seen on comparison. I have shown the specimen to several very able naturalists, and not one remembers having seen the species before. — R. Davenport, Bury, Lane. Animal Stupidity. — In studying the intellects of the lower animals it is no less important to note their mental shortcomings than the cases in which they reason correctly. Early this year I observed a singular piece of irrationality on the part of a large black retriever. The animal lived in the last house of a "terrace," in one of the northern suburbs of London, separated from the next terrace by a walled alley. Finding itself one day locked out, and being unable to effect an entrance either by the front door or by a side door leading into the alley, it made its way into the front garden of the end house of the next terrace, and made most persevering but fruitless attempts to leap over the wall. Had it succeeded it would, of course, only have landed in the alley which it could enter from the street. After a short time it left the garden, and ran round into the street and the alley, but still returned again and again to its endeavours to jump the wall until its master came home.— J. IV. Slater. Cannibalism among Caterpillars. — Receiving two half-grown larvae of the Goat Moth, I put them into a tin box and left them for a short time. On re- opening the box I found that one caterpillar had en- tirely devoured the other except the hard case of the head and a portion of the skin and prolegs. At first sight I thought that the larva; had assumed the chrysalis state, or had thrown off its skin, but a careful exami- nation failed to discover the chrysalis, and the box was too securely fastened to allow of the caterpillar's escape ; so the conclusion that one larva had devoured the other was the only one I could satisfactorily come at.— C. C. Parasite of the Linnet.— I am induced to write the few following remarks to Science-Gossip under the belief that this parasite is not well known. I shall be glad to hear if any subscriber has a similar specimen. Figure 199 shows this parasite magnified 50 diameters, and figure 200 shows one foot magnified 280 diameters. It is evidently a P/iysostomnm and not unlike Physostomum mystax, said by Mr. Denny .mm. ' ' Fig. 199. Parasite of Linnet x 50. Fig. 200. Foot of Parasite of Linnet x 280. to infest the chaffinch. The head is large and devoid of antennce and trabecular The legs are long, the femora thick, the first joint of the tarsus has a pulvellus. The mesothorax is wanting and the metathorax is continuous with the abdomen, which consists of 9 segments. The colour of this parasite is brownish yellow with a dark band down each side. It can move with great rapidity among the feathers of its host. — IV. A. Hyslop. The Colorado Potato-Beetle. — The appear- ance of the Colorado Beetle at Jaratschervo, in the district of Schrimm, in the Prussian province of Posen, has been officially reported. The Habits of the Field Vole. — At the British Association Meeting, Sir Walter Elliott made a few observations on the annual increase of the common vole {Arz'ieola agrestis) of late years. In the spring of 1876 they appeared in such numbers in the hill pasture farms of the Border districts between England and Scotland, and parts of York- shire and Wensleydale, as to destroy the grazing ground on which the sheep depended in spring, causing serious loss to the fanners by impoverishment and death of stock. The shepherds destroyed as many as they could without sensibly diminishing their numbers, although assisted by birds and beasts of prey — hawks, buzzards, owls, weasels, foxes, &c. At the same time that the vole was doing such mischief, another species {Arvieola arvah's), not known in 234 HARD Wl CKE 'S S CI EN CE-GO SSIP. England, made its appearance in Hungary, and attacked the corn-fields, which it had done to a less degree in two or three previous years, and this year they had attacked the wheat-fields of Moldavia, as appears by a late paragraph in the Times newspaper. Many instances are recorded of great damage being done by them, both in England and Scotland, by destroying plantations, of which Mr. Jesse described a notable instance in New Forest and Dean Forest some time ago. These examples prove that they do not confine their attacks to pastures and woods, and it is possible that they might, under favourable circum- stances, betake themselves to our corn-fields. It is therefore worth consideration whether our game- preservers should not be more forbearing towards the hawks, owls, and weasels, which are nearly extermi- nated in many places, although they live almost entirely on these and other small creatures. Sir Walter inquired whether anything similar had been seen in Ireland ; also whether, as moles and hedgehogs were the natural enemies of the vole, they should not be spared ; and with reference to a statement in " Bell's Histoiy of British Quadrupeds " (last edition) that the hedgehog was not found in Ireland, whether this was really the case ? Several speakers said that the hedge- hog was very plentiful in all parts of Ireland. Dr. Scl.vter on Specific Names. — In answer to Robin Goodfellow, in Science-Gossip, p. 189, I would observe, that it is a great error to suppose that specific names must necessarily be adjectives. In many cases they are substantives, and may then be of a different gender from the generic name, e.g. Turdiis merula, and Cervus damn. This is the case with the now scientific name of the common robin, which has puzzled R. G.'s little boy, and which is correctly written Erithacus rubecula, rubecula being a substantive like Erithacus, and standing in appo- sition with it. In the same way Linnceus called the Kestrel Falco Tiniutnculus, the Bell Falcon, from its bell-like cry. But a recent systematist, under the same misapprehension as R. G., has proposed to alter Tinnunculus into Tiununada ( !) because the genus to which he referred it, Cerchneis, is feminine. — P. L. Sdater. The Earth-worm. — Professor Paley has added a great many interesting facts to the little-known habits of the earth-worm, but he has not exhausted the subject, and I shall only be too glad if I can add an item to what has been recorded. After some very wet days in the month of last June, I spent several hours in the dusk of evening carefully noting their actions, my great object being to discover by what means earth-worms dragged leaves, string, twigs, &c, along the ground into their holes. I knew, for I had often seen them clasp objects by their prehensile heads, twining their finely-pointed heads firmly round the object, and so draw it towards their hole, but I had reason to suspect that this, No. 1, was their ordinary but not their only method. Very carefully and quietly placing a candle on the earth where a number of large worms were foraging round their holes, I look care to place decayed leaves, Sic, within the radius of the circle swept by their opera- tions. The objects placed within their reach were, however, too much the colour of the soil accurately and distinctly to be sure of the modus operandi, the thought suddenly occurred to me to try white paper. Tearing up little strips about three inches long, I gave them a single fold, and placed one within the reach of a foraging worm. Very soon its elongated head came in contact with the paper, and instead of twining its head round the paper I saw it put its head underneath. Carefully watching, I saw a lip on each side of the paper, which being compressed between the two, the paper was held firmly as in a vice, and so dragged to its hole. Continuing the experiments with my paper bait, I saw distinctly that the worm can compress and almost flatten its head as easily as it can elongate it. When the head is rendered obtuse, it can extend it on each side of the mouth so as to form two large distinct lips, between which it took hold of the papers and dragged them to the hole ; but this is only method No. 2. There is yet another, which at first I could scarcely understand. Observing a worm place its head under the white paper, so that its operation was invisible, I saw the paper, without any apparent means of motion, slowly, ghost-like moving along the dark ground to the hole of the worm. Its head was not round it, nor did its lips enclose any part of the paper, and yet it moved. Quietly and carefully, by candle-light, continuing for hours my observations, I saw that when it suited the creature's purpose best, it had yet a third method of attaching itself to its baits. The worm having retracted its head in the same way as when forming its lips, firmly pressed it for a moment on to the paper, and then apparently forming a sucker of its mouth, the paper was firmly attached to it, and so without being held, except as the leathern toy attaches itself by exhaustion of air to the stone, the paper followed the retreating worm and was dragged to its hole. I am perfectly satisfied as the result of my patient and tiring watching therefore, that the earth-worm can secure its object just according to which method best suits the thing it desires to obtain, either by encircling a part of it with its prehensile head, by pressing it between two expansions of the head-like lips, or by attaching its head and mouth in the way of a sucker. — W. Budden, Ipswich. Notes of Great Tit. — Gilbert White, in his " Selborne," says the curious notes, resembling the whetting of a saw, are the early spring song of the Marsh Tit. I have always taken it to be the Great Tit's note. Can any reader of Science-Gossip inform me to which of these birds the song belongs ? — C. C. HARDWICKE'S SCIENCE-GOSSIP. 235 BOTANY, Arum italicum. — This plant is mentioned in Hooker's "Flora" as occurring in the Isle of Wight ; but Bentham says the white-veined variety of A. maculatum from the Isle of Wight is some- times mistaken for A. italicum. I have a quantity of tubers of what I believe to be the true variety at the disposal of those readers of Science-Gossip who would like to naturalize them, by planting some in any situation where A. maculatum is established, in any shady lane or hedge-row, or in their own garden. I will forward one or more on receipt of stamped envelope. Larger tubers or extra number will re- quire two stamps for postage. — Dr. Morton, New Brompton, Kent. Mould in Herbaria. — May I suggest a plan that I have found to answer when a plant that has been insufficiently dried is attacked by mould. Let the sheet be taken out of herbarium and placed be- tween two thick pieces of blotting-paper. Then iron well with hot iron, changing paper until quite dry. By that time mould will have entirely disappeared. — Fred. W. E. S. How to Preserve Colours of Dried Plants. — In the July part (p. 165) a correspondent inquired for a method of preserving the colour of Primula vulgaris and Primula elatior for the herbarium. If the dried plant is painted all over with a mixture of ■one part of nitric acid to about twenty parts of spirits of wine it will retain its colour. I have a specimen of each treated in this manner, and though they have been mounted a long time, both petals and leaves are of the freshest colour. — Fred. W.E.$. Flowers of Hollyhock.— On reading what I wrote about the hollyhock, I perceive an ambiguity, arising probably from an error on my part in writing. From seeds proceeding from the same flower, in fact, I have nine plants, four whose flowers have been crimson, one light red, one of darker, richer colour, and one white, which has opened its flowers since I wrote to you last, besides two plants which have not flowered yet at all. Of the plants with white flowers, which came from seeds borne on a branch of the same parent plant and flowered last year, two have blos- somed again this year with white flowers as before ; another, a smaller plant, growing between those two, had not flowered this year till a few days ago, when I was startled by the sight of a crimson flower on a plant whose flowers last year had been white. Here is variability indeed. — yohn Gibbs. Verbascum blattaria. — I have found the Moth Mullein ( Verbascum blattaria) in a waste place, near Luton, Beds. It was discovered on a hill-side, above chalk, with flints, by Mr. F. Wiseman, who brought it to me for identification. That you may be assured of its authenticity I enclose one blossom. I would send you more, but after the most careful re- examination of the locality we can find no other specimens of it. — y. Saunders. Botany of Derbyshire. — The Rev. W. H. Painter desires us to say that he is engaged in editing a Plant-list for Derbyshire, and would be glad to receive communications from any botanist concern- ing it. Sugar in the Nectar of Flowers.— This was the subject of a most interesting paper read before the recent meeting of the British Association, by Mr. A. S. Wilson, M.A., of Glasgow. Nectar, he said, is the sweet-tasted fluid secreted within the cups of flowers, and is intended to provide an inducement to cause insects to visit the flowers. These insects confer great benefit on the flowers by assuring their cross fertilization, bringing pollen from other plants and depositing it on their stigmas. The result of this is that the plant is enabled to produce seeds of much greater vigour than it otherwise would. The saccharine fluid is usually contained in the most secluded part of the flower, in order that it may be protected from rain, for, owing to the solubility and the diffusibility of sugar, were it not so protected it would speedily be transferred to parts of the plant where it could be obtained by the insects without their serving the plant in the way of cross fertiliza- tion. The colour, odour, and marking of flowers enable insects to find the nectar more easily. The importance of these insects will be apparent from the smallness of the amounts of sugar found in the flowers experimented on by Mr. Wilson. Flowers of fuchsia yielded a total of 7*59 m.m.g. of sugar ; 1*69 of this was fruit sugar, and 5*9 apparently cane sugar. Of red clover each head gave a total of 7*93 m.m.g., fruit 5 '95' apparent cane sugar 1 "98. On each head of clover there are nearly 60 distinct florets. Calcu- lating from these results there was the astonishing industry of the bee brought out in an extraordinary manner, for in order to obtain the kilo of sugar 7,500,000 distinct flowers must be sucked. As honey contained roughly about 75 per cent, of sugar, a bee has then to make two and a half millions of visits in order to collect a pound of honey. It was rather a curious fact that nectar should contain cane sugar, seeing that honey never did ; indeed, were a vendor to sell honey containing cane sugar he would probably be prosecuted under the Adulteration Act. A change must therefore take place while the sugar is in the bee's possession — possibly through the action of the juices with which it comes in contact while in the honey-bag. As nectar is acid in its reaction it is, however, possible that the process of inversion may take place spontaneously. Proposed Experimental Garden. — Mr. Lax- ton, Fellow and late Member of the Scientific Committee of the Royal Horticultural Society, 236 HARDWICKE'S SCIENCE -GOSSIP. proposes to establish in a central locality and within easy access of London, an Experimental Garden, for the purpose of hybridising, cross-breeding, and selecting fruits, vegetables, flowers, ornamental and economic plants (chiefly hardy and half-hardy), for the raising and propagating of useful and choice novelties, scarce and little known plants of beauty and utility, and for the trial of new fruits, vegetables, flowers, &c. It is intended that all experiments shall as far as practicable be thoroughly and crucially conducted, and that each experiment with its results, whether apparently successes or failures shall be carefully and systematically recorded. The ad- vancement of Horticulture will be the chief desider- atum, but scientific and botanical considerations will be kept in view, and should available means and space be obtained, the improvement of cereals, forage, and other agricultural plants will also be sought. Amongst incidental objects will be that of testing the adaptability of introduced plants, &c, to the climate and soil of the district. GEOLOGY, The Extinction of the Mammoth. — Mr. H. H. Howorth read a paper on this subject, in which he examined the mode in which the Mammoth had become extinct in Siberia. His conclusion was that there had been a sudden and violent change of climate in that country, which had frozen the previously soft ground, and had also preserved the Mammoths as in a huge meat safe. The Pikermi and Sewalik Deposits.— Mr. W. T. Blandford, F.R.S., has recently published his reasons for concluding that the above deposits are of Pliocene, and not of Miocene age, as they have hitherto been held to be by most geologists. The nature of the marine shells at the base of the Pikermi bone-beds attests a Pliocene age. One mammal (Bos palieimiiais) found in the Upper Sewalik ^deposits occurs also in the Nerbudda alluvium, where it is associated with paleolithic implements. ♦ Carboniferous Amphibia and Fishes. — Mr. W. H. Baily, F.G.S., Paleontologist to the Irish Geological Survey, read a paper before the Geolo- gical Section of the British Association on the above subject, in which he showed that the remains of amphibians and fishes were impressed on the true coal, in a coal-seam, 3 feet thick, at Jarrow colliery, near Castleconner, county Kilkenny. All the remains were turned into carbon, one of the fishes {Megalichthys Hibberti) being over 3 feet in length. New Species of Star-fish.— Mr. W. PI. Baily has described a new species of Star-fish from the Lower Silurian Caradoc beds of county Wexford, Ireland, under the name of Palasterina Kinahani. A Permian Fauna in North America. — At the British Association meeting Prof. Cope described the remains of a fauna characteristic of the period which in North America succeeded the Carboniferous. It occurs in Illinois, and the remains were referred to Reptilia and Batrachia. In one genus, Clepsydrops, almost the entire skeleton was discovered. This was a clawed Lizard, with large canine teeth, and several incisors. NOTES AND QUERIES. Toads in Stone. — The stories concerning live toads which have been found inside limestone rocks are so well known and often well authenticated, that the fact can hardly be doubted. The article by Mr. Downes in your last number would seem to offer a good explanation of the phenomena. Any one who has observed the way in which the so-called " petri- " fying wells " at Matlock and other places deposit thick crusts on any articles placed in them, will easily perceive how the working up of a toad in a rock may be a question not of years but of months. We must remember, too, that though the independent testimony of quarrymen from many places remote from each other ought not to be set down as mere invention, yet exaggeration with regard to the thickness or solidity of the rock is very likely to take place. A short while ago, however, a curious story was told me about a toad having been found in the heart of an oak-tree. The toad was an enormously large one, and the impression of its body was plainly to be seen. When I saw the article in your last number, I wrote for further particulars, and have to-day received a reply- to the following effect, — that the time was thirty or forty years ago, that the tree was a large oak in Pignell Wood in the New Forest, that it was cut in the spring of the year. The three men who cut the tree are dead, but my informant, who is getting an old man, well remembered the circumstances, and, I believe, was on the spot a short time after the tree was cut and saw the impression ; at any rate, the circumstance seems to be well remembered by him. I give the fact on its own merits, hoping that it may call forth an answer in explanation or otherwise. — IV. IV. Fowler, Repton, Burton-on-Trent. Toads in Rocks. — To those interested in the subject of the frog and toad living without food, the following may be interesting : — In the Spring of 1876 I had occasion to go down a well, at Lewisham, to examine some pumps. Looking round for a place to put a few tools, I took out a loose brick from' the side of the well, and, while putting my tools into the hole, felt something soft and cold, which turned out to be a frog : it was very thin and weak. I took it to the surface and carefully put it in a suitable place. The next day it had breathed its last ; it was nothing but skin and bone. On making inquiries, I ascer- tained that during the Spring of 1875, while the pumps were being repaired, the frog had fallen down the well, and had been picked up and imprisoned, thus having been buried forty feet from the surface about twelve months. Its death, no doubt, was accelerated by the exertions it made to procure food. Shortly after this I was at Crayford Water-works, and mentioning the above circumstance to one of the turncocks, he told me that about twenty years previously he had put a toad into the hollow column of a drilling-machine he was helping to put up at a works at New Cross. I obtained permission to look HARD WJ CKE' S S CTENCE - G O SSI P. 237 into the column of this drill-machine, and there, sure enough, was the remains of the toad, nothing now but a few bones and dirt. By its side was the wick of a tallow candle, but no trace of the tallow was left ; possibly the toad had eaten the tallow, or, perhaps, the tallow had decomposed. I should state that the column was perfectly air-tight, and, as far as I could learn, had never been opened. It was about four feet high and seven or eight inches in diameter in- side. The air inside was foul, as a light would not burn. Without comment, I leave these two instances to speak for themselves. — ill. O. Hay don. The Longevity of Toads. — I have read in the last number of Science-Gossip, the account, by Mr. W. Downes, of a live toad having been found in limestone rock. I believe there are several well-authenticated instances of that nature, one of which I now send you. My informant is a personal friend, and a well-known mining-engineer of great celebrity. About two years ago, in a Yorkshire coal-seam 600 yards below the surface, a live toad was found in the middle of a block of coal. My in- formant was not present at the moment, but within half an hour he saw the toad, then dead, and the hole out of which it came. He had no doubt whatever as to the truth of the collier's statement that the toad was in the hole alive at the time he broke the lump with his pick, and came out apparently unhurt, but lived only about twenty minutes. I believe my friend has the toad in his possession. — y. D. S 'hake spear. Teratology of Leaves, &c. — I think the en- closed leaves as curious as the Cabbage-leaf of your last number of Science-Gossip. We received from South Africa some seeds of Cobicr. Capensis and some of Mimosa. We conclude, from the result, that a seed of each was set in one pot, as two distinct plants, yet united at the bottom of" the stem, came up, and, as you see, there is a second freak in the union of the two plants. Can you tell me if this is only a freak of nature, or is there a plant that is always so ? — B. H. Kirby. Goat Caterpillars. — Can any of the readers of Science-Gossip say whether there are any means of saving trees which have become infested by these caterpillars, and of preventing their spread to others in the same garden, other than cutting down and de- stroying the tree? If any know of a remedy, and would state it, it would greatly oblige, and save some valuable trees in this neighbourhood. — A. Warner, Hoddesdon. Behaviour of Lightning during Thunder- storms.— A friend and myself were talking of thunderstorms, apropos of the late ones, when he spoke of the lightning as having been observed by him leaving the earth and shooting up towards the sky. This, I replied, was owing to the position of the clouds, as electric fluid never left the earth in that manner during a storm, but might be seen darting from cloud to cloud. He, however, affirmed that it did so, and referred me to a work by Captain Snow Harris for confirmation of what he had seen. He also said that when trees or buildings were struck the injury was often done by the electric fluid leaving the earth, not, as I always supposed, attracted to it, and that the nature of its track displayed the fact. As I still doubt whether it be so or no, will you kindly settle the dispute ?— y. H. G. Roots of the Palm-Tree. — Two sermons have been preached lately in our neighbourhood on Psalm xcii. 12, " The righteous shall flourish like the palm- tree." In the first sermon special mention was made of, and a lesson was drawn from, the tap-root which we were told a palm-tree possessed. The second preacher, ignorant of the previous sermon, told us that a palm-tree had no tap-root like most other trees, and drew a lesson from its absence. " Where doctors differ disciples disagree." We should be greatly obliged if any correspondent of Science-Gossip could tell us whether palm-trees have tap-roots or not— A. B. Preserving Animals. — The whole of the "modus operandi" of Waterton's method, most exactly described, may be found in the end of his " Wanderings in America." The early editions of this work are scarce, but I am happy to say a new one has lately been issued, price 3/6, and may be obtained of any bookseller, from the London houses. W. Bairett-Rowe, Bristol. Preserving Slugs. — In "Rambles in Search of Shells," and also in the article on " Land and Fresh- water Shells" in the "Notes on Collecting and Preserving Natural History Objects," the following receipt is given for preserving slugs. " Make a cold saturated solution of corrosive sublimate ; put it in a deep wide-mouthed jar or bottle, then take a slug you wish to preserve and let it crawl on a long slip of card. When the tentacles are fully expanded, plunge it suddenly into the solution ; in a few minutes it will die with the tentacles extended in the most lifelike manner, so much so, indeed, that if taken out of the fluid it would be difficult to say whether it were alive or dead." I have tried this repeatedly, and have never yet succeeded in obtaining one specimen with the tentacles extended. In most cases the head of the slug, when it is dead, protrudes a little outside the mantle, but there is no sign of a tentacle in any of them. I should be glad if any of the readers of Science-Gossip would give me information about the preservation of slugs, as I am anxious to obtain them for my collection of land and fresh-water shells. In the same books it is also stated that the best mounting fluid is glycerine and water in the propor- tions of one to one and one-half. But I find that the fluid becomes coloured a deep yellowish brown soon after the slug is put into it. — B. E. Smith. Grey Lag. — In answer to "G. L. 's" inquiry con- cerning " Grey Lag," as applied to the goose, I beg to draw attention to the Cumbrian word laghter, brood of chickens, setting of eggs, which is from the A. S. I leegan to lay (eggs). The Grey Lag may therefore be the Grey Egg- Amy-. — y. C. Clongh. Green Hastings. — This cry undoubtedly is a corruption of Green " Hasties," for Coghan, in "The Hauen of Health," black letter edition of 1584, says, " There be three sortes of Pease common among us in Englande, — the first garden pease or hastie pease. The seconde sorte is called graie pease. The thirde greene pease, both growing in the fieldes." He then gives the cooking of them at that time, and states that " The two first sortes are used to bee eaten greene before they be full ripe. First they are sodden, then buttered, salted, and peppered. But if any student list to eate greene Beanes or greene pease, let him spare no pepper upon them, for this is a generall rule in Galen for meates that be windie." Also it appears at that day bread was made from peas, as further on he says, "If pease be unwholesome, then the bread which is made of them is unwholesome ; yet it is much used in Lecestershire. But I leave it to Rustickes, 238 HARD Wl CKE'S SCIENCE - G OS SIP. who have stomachs like Ostriges, that can digest hard yron."— W. H. Strange Friends. — In my parish, Lordington (Sussex), dwells a pretty little chestnut pony, of ad- vanced years, who has been turned out to end his days exempt from toil; and in the same park is a white goose who has gone round the world with the British fleet. Between these dissimilar animals a friendship has sprung up. When any stranger approaches the goose, it waddles off cackling towards the pony, apparently for protection. The goose was, doubtless, a great pet with the sailors. Has any one observed a like anserine attachment ?- F. IV. Arnold. Migrating Birds. — On dark nights from August all through the autumn I often hear birds passing over here. They make a constant whistling or piping noise, and begin to come over as soon as it is dark. They appear to fly in a westerly or south-westerly direction. I have never seen any of them, because it is only on dark nights that we hear these birds. Some- times they seem quite close, just above the house-tops. At the end of August in 1875, several letters appeared in the Times about this migration. One correspondent said, "Soon after eight o'clock on the evening of Saturday, the 28th instant, my attention was drawn to a strange noise over my house. It was raining in torrents at the time, but I could distinctly hear, above the .pelting of the storm, shrill cries, somewhat resembling the note of the Sandpiper, and the flapping of innumerable wings. This continued with scarcely any intermission for hours, at any rate until after twelve o'clock." This was eighteen or twenty miles from Maidstone. Another correspondent said, "These birds are frequently heard at Dover, and generally on ' dirty nights.'" I heard them here, for the first time this year, on Friday, the 2nd of August, and again on the following Sunday night, about ten o'clock. Are they Curlews and Sandpipers, and how far does their migration extend ? Perhaps some of your readers could inform me. — Henry Lamb, Maidstone. Colours of Dried Primroses. — A lady friend has been very successful in preserving the colour of the petals of Primula vulgaris by adopting the following simple method. As soon as possible after being gathered, the plant must be killed by washing the roots for two or three minutes in boiling water, then dried with a soft cloth, and immediately trans- ferred to the drying papers, which should be well warmed at the fire, and changed frequently, until the plant is perfectly dry. The corollas of a number of specimens she has treated in this way have preserved all their original beauty of colour, and the leaves have also retained their natural appearance. Some I my- self dried, without first subjecting them to the hot water treatment, lost their natural colour, and changed to the bright green, which has annoyed so many collectors. I have been very successful in drying Orchids, by following the instructions given on page 88 of Science-Gossip for 1873, where it is recommen- ded to clip the root and leaves in boiling water for a few minutes previously to putting the specimens in the press. — R. Standen, Goosnargh, Lancashire. Geology of North Devon. — If " W. Downes " would kindly give a few particulars as to his " finds " in this district, and a few hints as to localities, he would greatly oblige a native, who is now an occasional visitor, and would be glad to make the most of his time at his next visit. — IV. G. Sea Anemones. — I should be obliged if "C. A. Crimes" would kindly state in the next number of Science-Gossip how he feeds the baby sea anemones, as I find it an utter impossibility to make them take the food. After their birth does he leave them where they are or move them ? I should also like to know whether he has any peculiar treatment for his B anodes gemmacea, as I have been most unfortunate with mine. Within a few days of placing them in the tank they have a decomposed appearance, the colour fades, and they are covered with a sort of slime. Sagartia venusta I have succeeded very well with, and also Sagartia bellis, but the " gem " invariably dies directly. We once kept a Tealia crassicornis for three years, but this also seems a very difficult one to manage. — C. E. R. Protection from Forest Flies. — Having received personal benefit from the remarks in Science- Gossip on the Harvest Bug, I send a perfectly trust- worthy recipe for the protection of horses from the Forest Fly. Smear the face and flanks well with parafin oil. I have been here nearly three weeks with my two young ponies ; they are not foresters, and one cannot stand the fly at all without the oil. — Catherine Middleton, Z yndh nrst. Birds' Eggs in Wrong Nests. — The communi- cations of Messrs. C. H. Sharp and A. F. Griffith on the above subject brings to my recollection an incident which happened in the north of Aberdeenshire, in 1865. When walking along the banks of a stream which ran through a wood, my cousin disturbed a wild cluck sitting on, and attempting to cover, eleven wild, ducks and thirteen pheasant's eggs, which were all crowded together in the same nest. — A. M., M'c A., Stoke-on-Trent. Wild and Tame Ducks. — A pair of wild ducks located themselves on a moat surrounding the house of a friend of mine last October. During the severe weather they came to the feeding-place of the domes- tic ones, but otherwise kept themselves separate. In the spring, a tame duck hatched a brood of young ones near the haunt of the wild ducks, which now it is supposed were destroyed by them. Soon after- wards, the tame duck, whose brood was lost, was caught in the act of drowning the progeny of the wild duck, and succeeded in killing five of them before being discovered. She was at once sent off to another farm. In the same moat, several moor hens have reared their young for years, taking their departure regularly every winter. — J. Wiggin. Barbots. — I enclose the following cutting from a newspaper, and shall be glad if any of the readers of Science-Gossip can tell me more of these insects (?). The name is quite new to me. Are they only to be found there ? Galignani states that a terrible accident has just taken place at Biarritz. Miss Gordon, who had passed the winter in Paris, was drowned while out on an excursion. She attempted, without a guide, to go along the cliffs far beyond the point marked by the authorities as the limit for the public to go safely. She reached a place known as the Falaise de la Mort, and in stooping to pick a flower, her foot slipped, and she was precipitated into a hole known as the Barbots, a spot said to have this peculiarity, that at the end of forty-eight hours nothing more than the skeleton remains of any beings which fall into it. It contains millions of small insects which devour the body, and which are called by the inhabitants of the district barbots, and are by them held in especial horror. The Duke de Frias met his death under- similar circumstances a few years ago. HARDWICKE'S SCIENCE -GO SSI P. '■39 Egg Drills.— Where are Egg Drills, described and figured at pp. 30 and 31 of " Notes on Collecting and Preserving Natural History Objects," to be ob- tained ? As far as I know, they are not to be had at any of the naturalists' shops in London, where only very inferior implements for this purpose are sold. — Beta. Birds Singing at Midnight. — Extract from the Standard, Feb. 22, 1878.— "W. F. E.," writing on the above subject, mentions something much more remarkable in the history of our singing-birds which has occurred in the immediate neighbourhood of Little Chart Rectory, Charing, Kent, within the last few days. Between the hours of eleven and twelve •o'clock on the night of Friday last, the 15th inst., on Saturday night, and again on Sunday night, at the same hour, the blackbirds and thrushes were singing, whilst the smaller birds in the hedgerows were chirruping and twittering just as you hear them in the early morning in summer. He himself listened to them with open door and window, and he has been told by several who were out on those nights— the neighbouring doctor amongst the number — that they heard with wonder this, at such an hour, unusual melody." Birds Singing at Midnight. — The singing of thrushes, robins, and other birds for several nights in succession, during February last — although, doubtless, accounted for by the singular beauty of the weather about that time — is such an unusual occurrence, that I should be very glad to hear of it prevailing generally in the country. — X. Brotherly Love in a Guinea-pig. — Some years ago I possessed a guinea-pig which had never shown any more wisdom than the rest of its species. One day a friend gave me a young rabbit which he had caught in a neighbouring warren, and I put it into the guinea-pig's cage. I was somewhat aston- ished to see the guinea-pig feed the rabbit "with clover and other vegetables provided for its own nourishment. It also gave up to it the snuggest part of the cage. The guinea-pig continued these atten- tions till the rabbit was sent back to its native warren, when the unfortunate guinea-pig expressed its anguish in most pitiful cries. — Anna Ward, Belfast. Phosphorus in Salt Water. — I have observed that when thunder is prevalent, the flashes of light in sea water, occasioned by phosphorus, are much more numerous and distinct. — A. Ward, Belfast. Ranunculus repens. — J have never heard the name " Devil's-claw " applied to this plant. In this part of Somerset it goes by the name of " Ram's- claws," as its long trailing stems are a great annoyance to the rakers in the hay-field. — W. Herridge, Cack- lington. NOTICES TO CORRESPONDENTS, To -Correspondents and Exchangers. — As we now publish Science-Gossip a week earlier than heretofore, we cannot possibly insert in the following number any communi- cations which reach us later than the 9th of the previous month. G. A. H. (Manchester). — No. 1. Viola Curtisii, a very characteristic specimen ; No. 2. Some form of Viola tricolor, probably V. Mackaii ; No. 3. Statice auricul&folia, Vahl ; No. 4. Sagina apetala. E. H. (London). — No. 1. Everlasting Pea [Lathyrus sylves- tris, L.) ; No. 2. Erigeron, sp. ; No. 3. It is difficult to name a species from leaves only, but we believe your example to be Oxalis acetosella, L. J. A. W. (Darlington). — No. 1. Cerastium triviale ; No. 2. Mountain Willow-herb {Epilobium montanum) ; No. 3. Meadow Pea {Lathyrus pratensis, L.) ; No. 4. Common Valerian {Valeriana officinalis); No. 5. Restharrow {Ononis spinosa) ; No. 6. Bedstraw {Galium verutn) ; No. 7. Anagallis tenella. CujAS (Beauly, -Glasgow, N.B.). — Your specimens are as follow: No. 1. Bog Asphodel {Narthecium ossifragmii); No. 2. Bur Marigold {Bidcus tripartita) ; No. 3. Rough Chervil {Chisrophyllu»i temulum); No. 4. Winter Green {'frientalis europora) ; No. 5. H'ogweed {Heracleum sphondylium) ; No. 6. Field Gentian {Gentiana campestris, L.) ; No. 7. Stitchwort {Stellar ia graminea) ; No. 8. Earth-nut {Bunium Jtcxuosuiii) ; No. 9. Red Dead Nettle [Lamium purpureum) ; No. 10. A very curious and remarkable monstrosity of No. 5 ; we hope to figure it in our columns shortly ; No. 11. Dead Nettle (Lamium amplcxicaule) ; No. 12. Lesser Spearwort {Ranunculus Jtam- muta). Q. Q. (Elie Fife). — Unfortunately your example came to hand in a poor state to determine ; it was partly decayed ; it may prove to be Lycium barbarum ; have you another speci- men ? B. D. (Newport). — It is Cirsium oleraceuni. We cannot tell why it is so named. Some of our thistles are edible. E. W. (Bristol). — The Carex you send is Carex paludosa ; it is nearly allied to C. riparia. J. C. W. (Salterton, Devon). — No. 1 and No. 2 are both Lotus tenuis, Kit. According to Hooker a sub-species of L. cor- niculatus, L. ; but it is readily distinguished from that species by its filiform and often shrubby stems. G. W. Bell. — See article in Science-Gossip for July, 1877, by Mr. J. Young, F.G.S., on " How to Clean Fossil Polyzoa." A Subscriber. — The best book on British Butterflies and Moths is unquestionably that of E. Newman. There you will find illustrations of every species except the Micro-lepidoptera. Morris's "British Moths" contains coloured plates, but they are not so faithful as Newman's woodcuts. W. G. Piper. — The lias, both at Lyme Regis and in the neighbourhood of Whitby, is full of fossils. A capital hunting- ground may be found at Aust Cliff, on the Severn, near New Passage, where there is an abundance of Rhoetic fossils. The carboniferous limestone at Castleton, Derbyshire, is a splendid fossil locality. The tertiary beds in the Isle of Wight are also exceedingly fossiliferous. C. E. R. — You can purchase Sea-Anemones of Mr. King, Seahorse House, Portland-road, London. F. W. E. S. — Your article will appear shortly in our pages. J. W. S. (Sheffield). — Your exchange exceeds the three lines allowed gratis, and would have to be charged as an advertise- ment. Essex. — The insect you trod upon which gave forth a phos- phorescent light was most probably Geophilus ellctricus, one of the Millipedes. J. R. Murdoch. — Your Mosses are : — No. 1. Hypnum Sendtueri ; 2, Hypnum purum ; 3. Hypnum tamariscinum ; 4. Hypnum loreum ; 5. Hypnum piliferum ; 6. Hypnum Kneiffii ; 7. Dicranella squarrosa ; 8. Hypnum lutescens ; 10. Hypnum splendens ; n. Neckera complanata ; 12. Hyp- 7111m myosuroides ; 13. Bartramia fontana ; 14, Homalia tri- chomanoides. Hepaticae : 9. Madotheca platyphylla ; i$.PZa- giochila asplenioides ; 16. Scapauia nemorosa. A. Cole. — Your Mosses are : — No. 1. Sphagnum Jimbria- tum ; 2. Sphagnum acutifolium : 3. Sphagnum subsecundum (var. contortum) ; 4. Sphagnum cymblfolium (var. squarrosu- lum) ; 11. Sphagnum cuspidatum ; 5. Hypnum Jlagellare ; 6. Dicranum scoparium (young); 7. Hypnum rivulare ; 8. Ce- ratodon purpureas ; 9. B>yum caspiticium ; 10. Hypnum ser- pens ; 12. Hypnum sericeum. A Beginner. — The insect you describe was most probably one of the Hornet Clear-wings, a moth which simulates the appearance of the true Hornet in a remarkable degree. See Newman's " British Moths." A. W. A. — 1 here is a capital old-established Naturalists' Field Club in Liverpool, whose subscription is low, that would suit you and such as you, and we feel certain it would welcome artisan- naturalists. The president is the Rev. H. H. Higgins. C. H. G. — The caterpillar of your moth had been attacked during life by an ichneumon (a not uncommon thing), and the ichneumon had deposited its eggs in the tissues of the caterpillar. These subsequently hatched into the condition you found them in, at the expense of their host. X.— Your packet contained some of the purifying lime used in gas-works. J. Kirkham. — The six ivory slides are very heterogeneous as to objects, and old-fashioned. No. 1 contains a piece of Red Seaweed {Plocamium) and of a Sea-fir {Sertularia argentea) ; No. 2 shows wings, legs, &c. of some orthopterous insects ; No. 3, Fish-skin. Feather-barbule, &c. ; No. 4, pieces of Snake- skin and part of a Beetle ; No. 5, Coral-sand, portion of Diamond Beetle, of Sea-mat (Flustra), &c. ; No. 6, piece of Cora Una officinalis (a Sea-weed), of Flustra, and a group of Foraminifera (Gtobigerina). Please send us your address, as we have mislaid it. 240 HARDWICKE" S SCIENCE-GOSSIP. Undergraduate. — The " rough" sketches will only permit of a rough guess at the names of the objects delineated : — No. 1 are possibly the fragments of species of some Echinoderm (Spatangus or Opkiocoma ; 2. Polyotomella ; 3. Rotalina ; 4. Heliopelta Metii (diatom) ; 5. Cingulum or connecting zone of some discoid diatom ; 6. Actinoptychus (diatom) ; 7. Cosciuo- discus Uneatus (diatom) ; 8. Actiniscus Sirius (diatom) ; 9 and 10. Upper and lower apices of Sccptroucis caduccus (diatom). EXCHANGES. Wanted, in exchange or for purchase, " Natural History Review" for years 1854 and 1855 (bound or in parts, latter pre- ferred) and following numbers : — April, 1856 ; April, 1858 ; April and October, i860. I have some odd numbers of same work, if required. — Alpha, 18, Upper Fitzwilliam-street, Dublin. A Student in pathology, having constant opportunities of procuring specimens in bulk (physiological and pathological), would be happy to send his duplicates, hardened in spirit and ready for making sections, to any gentleman, in exchange for Natural History specimens. Further particulars by letter.— W. Barrett Rone', 165, White Ladies'-road, Bristol. Several Natural History curiosities to exchange, including Bat (stuffed), Python (stuffed), and a fine specimen of the Goliath Beetle; also a new copy of Rye's "British Beetles" (10s. 6,d.). Wanted, Wood's " Insects at Home " or " Abroad," Lewes' " Sea-side Studies," British or Foreign Lepidoptera and side-blown Birds' Eggs. — W. Barrett Rone, 165, White Ladies'- road, Bristol. OAK-feeding Silkworm Moth (Yama Mali) for poition of a wing. Send a stamped directed envelope to W. H. Gomm, Sandwich, Kent. WELL-mounted sections of Sponges in balsam, showing spicula in situ : Grantia compressa, Hymeniacidon suberea, H. caruncula, Halichondria panicea, offered for unmounted pieces of Pachymatisma, Spongilla, &c. — T. H. Buffham, Clarendon-road. Walthamstow. Several hundred Silkworms' Eggs for exchange, for Micro, or other objects of interest. — Mrs. Skilton, London-road, Brentford. Offered, Unio margaritiferus from river Tay. Wanted, Anodonta, or other good freshwater or land-shells. — Address, Henry Coates, Bridgend House, Perth, N.B. Wanted, Slides or Material, Triceratium, Diatoms, and Foraminifera, for well-mounted Slides, Alyssam, Eleagnus, Onosma. Material of same or other slides in exchange. — E. W. Burgess, 35, Langham-street, London, W. Wanted, Harvest Bugs, Trombidium autitmnale. First- class slides in exchange. — E. W. , 48, Tcllington-road, Hollo- way, N. Good Microscopic Slides in exchange for any of Hugh Miller's works, or a good turn-table. — E. Edwards, 8, St. John's Cottages, Penge, S. E. Offered, Nos. 42, 133, 164, 1^5, 185, 206, 242, 273, 386, 389, 390, 451, 452, 520, 550, 634, 729, 753, 761, 773, 831, 841 b, 1015, 1517, 1040, 1131, 1259, 1406, 1501, 1571, 1572, in ex- change for rare British plants. — W. J. Hannan, 6, Tatton- street, Ashton-under-Lyne. London Catalogue, 7th ed. wanted, 5, 7, 19, 23, 25, 61, and others, for 241, 120, 171, 804, 1136, 1379, and many others. — Miss H., 75, Todmorden road, Burnley. For a few scales of any six of the following send well-mounted object :— Greater Weever, Black Bream, Atherine Smelt, Blue and Ballan Wrass, Grey Mullet. Sapphirine, Red and Streaked Gurnards, Bass, Tench, Rudd, Roach, Dace ; also, skin of Spotted Dogfish and Picked Dogfish.— E. M., 20, Cropley- street, New North-road, London. For exchange, upwards of five dozen microscope slides, chiefly parasites, wanted in exchange, parasites, either mounted or unmounted. — W. A. Hyslop, 22, Palmerston-place, Edin- burgh. Palates of Helix aspersa and Patella vulgaris, neatly mounted, in exchange for good slides or material. — J. Black- sham, 78, Lozell's-road, Birmingham. Rosa tomentilla, dumetoi-um, Reuteri, &c, for C alt ha Guerangerii, Digitaria hiiDiifusa, and other Rosas and Rubi. — G. C. Druce, Northampton. Wanted, Rubbings of Monumental Brasses from all parts of England : exchange natural objects, Rubbings from Kentish churches, or Curiosities. Have Science-Gossip from com- mencement.— F. Stanley, 6, Clifton Gardens, Margate- British Land, Freshwater, and Marine Shells, and British T-epidoptera, offered for British Marine Shells or foreign Helices. — Thomas H. Hedworth, Dunston, Gateshead. Birds' Eggs, side-blown, labelled, picked, well-marked specimens. Wanted, side-blown specimens of many varieties. — Henry Sissons, Westbourne-road, Sheffield. F. S. Collins, 26, Tremont-street, Boston, Mass., U.S.A., would like to exchange American Algae for English or others. Wanted, Rev. J. G. Wood's " Insects at Home " and " Insects Abroad," or any similar works, for foreign insects, mounted orunmounted, chiefly parasites. — M., Anglesey Lodge, Godalming, Surrey. To Conchologists, resident at home, abroad, or in the Colo- nies.— Having duplicates of nearly 100 species of the British Land and Freshwater Shells, including many of the rarer British Vertigos, such as Substriata minutissima, Alpestris, Pusilla, and Angustior, would be glad to exchange these for foreign or colonial shells equally good. Also in duplicate, Limncea invohttits and Succiuea oblonga, for other English, Land, and Freshwater Shells, in quantities suitable for foreign exchanges ; many common species required. — W. Sutton, Upper Claremont, Newcastle-on-Tyne. Side-blown Eggs. — Many very rare specimens for exchange, mostly marked with collectors' own marks for authentication Wanted, Woodcocks, Ruffs, Puffins, Nightjars, Shags, Wag- tails, Hobies ; also, American and other foreign species. — Sissons, Sharrow, Sheffield. For injected human Kidney, stained section of human Inte> tine, and Japanese Grass, all in balsam, send pure gatherings of diatoms, or any well-mounted balsam slide, to J. A. Kay, Mansion House, Brompton, Chatham, Kent. " HALF-Hours in the Green Lanes," new and clean, offered for Lepidoptera, or books on Entomology. — A. Wheldon, 8, Albion-street, Darlington. Number of first class Anatomical Slides wanted, for first slides or material ; send sample and list for sample and list to James Green, the Cross, March. Cretaceous Fossils to exchange for others. Also, wanted, good books on Palaeontology. State price, &c. — J. A. Floyd, Alcester, Warwickshire. Wanted, in exchange for well-mounted microscopic slides, SciENCE-Gossir for 1870, unbound ; also, 1865-66-67. List sent to choose. — W. Wise, Broad-street, Launceston. Offered Nos. 68, 70, 140, 233, 284c, 625, 682, 1071, 1074, 1341 and b, 1577, 1600, 1634c, — for \b, 6bc, 15/;, i8'C N Fig. 204. This sketch of the fig of F. banyana was in all probability a recumbent form. The figure represents a cavity in the limestone, and shows the processes extending from the frond. — Mr. John Young, F.G.S. Fig. 4, plate 18, "Transactions of the Acad. Sci. St. Louis," vol. i. p. 450. limestone. On mentioning this to Mr. Lonsdale, he at once adopted the suggestion, and named a species of the Silurian strata Fenestella Milleri (Lonsd.).* In 1 841 Phillips himself adopted this term. This more expressive generic term has since been adopted by nearly all writers on Palceozoic Polyzoa ; and Lonsdale gave as a description of the genus, characters altogether different from Retepora, and more in accordance with known facts. It is impos- sible for me to give the exact description as given by * Phillips's " Palaeozoic Fossils of Cornwall, &C." Through the kindness of Mr. Plant, curator and librarian of the Peel Park Museum, Manchester, I have been allowed to extract whatever I required, and trace the original figures of specimens from this rare volume. HARD WICKE 'S SCIENCE- G OSSIP. 249 Lonsdale — not having his works at hand to refer to — but the following is taken from M 'Coy's " Palaeozoic Fossils " : — " Polypidom calcareous, cellular, forming a conical or fan-shape expansion of radiating branches, interstices connected by transverse dissepiments ; exterior surface of branches rounded, covered by tlense minutely porous layers ; inner surface with a keel along the middle, separating two rows of mouths of short tubular cells, which extend a variable length obliquely downwards and inwards into the interior of the branch : dissepiments usually without cells, occasionally a row of small cells on the mesial keel. Non-celluliferous side formed internally of a layer of vertical capillary tubes." This genus was placed by M'Coy among his Family, Group Myriaporid.'E, a Fig. 205. Fenestella with lateral ralicocoryue. a. Bases of cells partially exposed, b. Immature development of Fenestrule with PaUeocoryue (b) on reverse. The wider openings are the fenestrules, very irregular in shape and size. The specimen is upside down, to show the connec- tion on the branches. (Natural size, slightly over \ of an inch. group which embraced the genus Retcpora of Lamarck ; the Elasmopora of King ; the Glanconome of Goldfuss restricted by Lonsdale ; the Penniretopora of Prodomas ; the Acanthocladia of King ; together with the sub-genera Fcncstdlina and Reteporifia of D'Orbigny. The first recorded appearance of this genus is in the Bala beds of the Lower Silurian series. In Morris's Catalogue, and also in Jukes's " Student's Manual," 1857, it is recorded as appearing in the Upper Silurian, in company with many other forms of Polyzoa. In the later edition of the Manual this may have been corrected, but I have not seen it. But in Morris's earlier Catalogue, which he began in the 1st volume of the Geologist, Fencstella snbantiqna, D'Orb., and F. Milleri, Lonsdale, are given with the Lingula, Llandello, and Caradoc or Bala Bed fossils. From either the figures or even the specimens, it is very difficult to make out the true character of F. Milleri. The habit of the species as impressed upon the Bala shale is peculiar and characteristic. It is partially flabelliform, but not universally so, as some of the branches cross and recross the under ones ; thus obliterating the true character. The interstices are thin, and according to the description, the dissepi- ments are narrow and slender, and two lines apart. The fenestrules are five or six times longer than wide, with about twelve pores to the fenestrules. If this be a true description of the species, F. Milleri is a marvellous specimen of the earlier Fenestella group. Fenestella Lons- dalei, D'Orb., is figured in Sihtria, and is given by Morris in the earliest, as in the latter catalogue. It is found in the Dudley limestone as well as in the lower beds, and if the synonyms be true, the species had a very wide range, as it is figured as an American species as F. prisca, and Morris, in his catalogue, gives F. prisca as a synonym of the species. The figure before me is cup-shape, attached by a broad base to some foreign object. The outline of the margin of the cup-like form is entire, and the poriferous face will be on the inside, like modern species of Retepora and Hornera. It seems to be a good species, and habit alone would be a sufficient character. F.snb-antiqna, D'Orb., is another Silurian Fenestella ; but among synonyms of this are given F. antiqna, Lonsdale, Retepora antiqna, Goldfuss, and R. membranacca, Phillips : it may be a frag- ment of some larger specimen of F. prisca. D'Orbigny's species, as recorded and de- scribed in his Palaeozoic Fossils, has a corallum very slender, with straight inter- stices, seven or eight of these measuring only two lines ; the dissepiments are thick, and the fenestrules are rectangular or oblong, about three lines longer than wide. The pores are small, thick, with prominent edges, their own diameter apart, and six or seven to the length of the fenestrules. F. reticulata, Lonsdale, is a species that has been often confounded with Hisinger's Retepora, so much so, that M'Coy draws attention to the fact, acknowledging that it is scarcely possible to determine the specific character, as no information is given relative to the pores. Yet, as his species of Retepora Ilisingeri ? agrees in some particulars with the original, he would even add confusion to the con- fusion, and name it R. retifonnis, even though Mr. 250 HARD WICKE'S SCIENCE- G OSSIP. Lonsdale had applied the term to "a very similar corallum, which he, however, places with the genus Fenestella, and figures with only the two rows of pores usual in that genus." F. pat ida, M'Coy, and F. rigidula, M'Coy, are good forms and very well described. The corallum of F. patula is small and semicircular, about half an inch in diameter. The interstices are broad, strongly carinate, slightly flexuous ; the dissepiments are strong, and the fenestrules are a little wider than the interstices ; the pores are large and prominent, about 3 or 4 to length of fenestrule. Its general features and character are very much like some of the smaller species of the Carboniferous limestone. The figure of F. rigidula is peculiar and striking, and it much resembles some of the Devonian species of Nicholson. The following, however, is M 'Coy's note on the synonyms of the several species :— "Fenestella antiqua, Lonsdale = F. subantiqua, D'Orb. F. antiqua, Goldfuss, is a distinct Devonian form. F.prisca, Goldfuss, Silurian = F. rigidula, M'Coy. F. elegans, Hall, Silurian = F. rigidula, M'Coy. F. assimilis, Lonsdale, Silurian." My list contains the names of three other forms. Dawson describes one by the name F. Lyelli, and Hall figures and describes two other species from the Clinton series of America,—^, aibosa and F. tenui- ceps. There are figures of these species, I believe, in Dana's Manual. I could not pretend to give anything'like exactness to my review of the Silurian species of Fenestella. To say that the whole of the descriptions are very foggy, would be perhaps vulgar denunciation, but it would be nevertheless a fact. And before altering my formerly written paragraph, which was less sweeping than this, I have gone over again the whole of M 'Coy's figures and descriptions. These are good so far as they go, but they do not come up to a proper analysis of the specific characters of the genus which modern biological, or even palreontological studies demand. Too much dependence has been placed upon the isolated fragments, which give only a partial view of the true ideal of specific type. In reviewing the Carboniferous Fenestella I shall be able to make this more clear. Attercliffe, Sheffield. {To be continued.) [I should be glad to correspond with any student who has described or undescribed species of Fenes- tella in his cabinet, for the purpose of more accurate identification.] Cotoneaster VULGARIS. — Could I ascertain whether this plant still exists on Great Orme's Head ? The habitat I have down for it is, on rocks above the copper-mines. Along with two friends I worked the locality well, without avail, last month : probably it has "ot exterminated. — II. T. G. HOLIDAY RAMBLES IN ST. OUEN'S BAY' " Q HALL it be Scotland or Jersey? " was the ques- O tion put when arranging for a botanical tour; and though the flora of Clova, Glen Isla, Braemar, and the Grampians is sufficient in itself to make a holiday enjoyable, but when the additional advantages of lovely scenery and health-giving mountain breezes are added, it must indeed be a rich and peculiar flora to outweigh them ; but possibly it was the long monotonous spring, with its absence of sun, that caused the Channel Islands to exert a spell so mag- netic that not even the presence of the "silvery streak " was sufficient to break or neutralize its in- fluence. So, having prepared for work by spending a day among the oaks of Whittlebury Forest, whose natural history has yet to be written, and glorying in another at Kew, we proceeded with considerable misgivings to cross from Southampton by a passage whose horrors had been sufficiently dwelt upon by candid friends ; but, thanks to the soporific effect of the daily literature we had assimilated, we slept a dreamless sleep as we passed through the Solent and the chops of the Channel. Arriving at St. Helier's, in Jersey, we noticed the slopes of Fort Regent were brilliant with Medicago maculata, Silene Angli:a, Linum angustifolium, Tragopogon porrifolius, Sedum Anglicum, and two or three specimens of Gladiolus, which had established themselves there. But it would be wearisome to give in detail the various plants seen on the different days spent in Jersey ; sufficient to say, that, having beautiful weather we visited the rocky Corbieres, home of the seabirds, enjoyed the delightful breezes on the samphire-covered cliffs of Pleinmont, the only Jersey locality for A. ca pill us veneris, admired the ivy-covered castle of Mont Orgueil, the shady lanes of St. Saviour's, home of Arum Italicum and Sibthorpia, and had taken the rather noisy coach-rides by Beauly Bay, with its view of sunny France, and the romantic gardens of Rozel, not to speak of the sea-bathing, which the firm sands and clear water render so pleasant, and the entomolo- gical hunts after Thecla rubi, Cinxia, Edusa, Cardui, and Daplidice, on the hot slopes of Noirmont Point and Greve de Lecq ; while the enormous cow-cab- bages, the fig-trees, and extensive vineries had been properly inspected. So, in order to give some idea of the peculiarly rich and extensive flora of Jersey, one day shall be used as a sample, comprising, as it did, some of the best and most typical plants. Its route may be shortly given as follows : from St. He- lier's to Beaumont, thence to St. Ouen's on to L'Etac, returning by St. Ouen's Bay to La Moye and St. Bre- lade's. The distance walked would be from 24 to 26 miles. The success of the day was owing to the company of Mr. Piquet, who is compiling a new flora of Jersey, and the previous reading up of Babington's "Flora Samicrc." Shortly after leaving the nau- tical-looking station of St. Helier's, the rail, which HARD WICKE'S SCIENCE- G OSS IP. 251 runs round St. Aubyn's Bay, was bordered with Borago and Anchusa sempervirens, common viatical plants in Jersey, followed by great quantities of CEnotJiera odorata. Dismounting at Beaumont, and walking to Bel Royal we found Alyssum maritimum, and then visited St. Peter's Marsh, where Ranunculus cphioglossifolius, Cyperus fuscus, and Isnardia palus- tris, formerly grew, but with the drainage of the marsh and its subsequent cultivation these rarities have disappeared. Mr. Piquet, however, pointed out the exact spot where he had last gathered the Ranunculus. At Bel Royal, in Professor Babington's locality, we gathered Hemiaria snbciliata, growing in straggling dark green patches, not unlike Thymus Serpyllum. Near it we also found Allium sphero- cephalum and vineale, Silene conica, whose prettiness is lost by drying, and CEnolhera in great plenty. Passing through one of the shady lanes we gathered Scrophitlaria Scarodonia, which takes the place of our nodosa and aquatica, the two latter being rare in Jersey. On emerging into the bright sunlight we noticed the pretty Lotus hispidus and Sednm An- glicum, while the gardens of the nice little villas were blazing with Jlfesembryanthemum and Gazonia. Nearing St. Peter's, on a shady wall we came upon the Jersey Fern, Gymnogramma lentophylla, in abun- dant fruit, but losing its colour, May being the month for it in perfection. On the way to St. Ouen's Manor, about Vinchelez, where we had previously caught a fine specimen of the Jersey Lizard, Lacerta viridis, before it threw off its tail, as did another we caught near St. Brelade's. In these oak-shaded lanes ento- mologists possibly would have been pleased by the strong odour emitted from hundreds of the goat caterpillars which infect and destroy many of the trees about here ; but to us the smell of Allium trique- trum that haunted our vasculi was deemed preferable. Gratefully accepting the invitation to visit the Manor H ouse, we went over one of the ancient homes of Jersey, — the ancestral seat of the Carterets ; and had we been archaeologists, we might have reported upon the quaint oak carvings and mullioned gables ; but being only botanists, we most enjoyed the view over the island, down the well-wooded valley to the coast of St. Ouen's wide-stretching bay, and the pond, dear to botanists, the ultima Thule of our journey : while, above us, the grand old chimneys, covered with white and pink snapdragons, and the thatch-roofed outhouses, covered with such profusion of Cotyledon, surpassing any previously noticed, — not excepting Pandy Mill, delight of artists, the rocky lanes of Car- marthen, or the peat-topped walls of county Mayo. Leaving St. Ouen's we came upon a marshy piece of ground, where Lythrum hyssopifolium was plentifully growing, though, of course, not in flower. Ranun- culus hirsutus, Orchis latifolia, Bartsia viscosa, and Hypericum elodes, also occurred. Nearing L'Etac, the roadsides were bordered with Siuapis incana, and a. wet meadow was adorned with the rich purple Orchis laxifiora. Chenopodium muralc occurred in the village, Atriplex Halitnus being used as a hedge-plant. St. Ouen's Bay is about six miles long, and is bor- dered with sandy tracts cultivated wherever possible, in some cases potatoes being planted in the actual sand, where Carex arenaria and Festuca rubra are agrarian weeds ; but the uncultivated portions shone as a field of gold with Raphanus, Brassica, Cheiran- thus, Sinapis incana, and other Crucifene. The road- sides yielded Lotus diffusus, Allium vineale, Silene conica anglica, Trifolium striatum and subterraneum, with stems iS in. high ; while, growing among the silvery abundance of the long-awned Bromus maximus and Festuca unigiumis, appeared Medicago minima and Armeria plautaginea, with other sand-loving plants. On the hot toilsome walk across fields of small dimensions enclosed by stone walls of rickety struc- ture, specimens of Orchis laxifiora, Bartsia viscosa, Cyperus longus, and CEnanthe crocata were noticed. An exploration [of the shingle was next attempted, when a solitary specimen of Crambe, a very rare Sarnian plant, was seen. Euphorbia Paralias was frequent, and is occasionally frequented by the larvae of Sphinx Eicphorbii. Diotis maritima was not plentiful, but Atriplex arenaria, Salsola kali, and cakile were very common. Standing by the shingle, and looking over to the sand dunes, a beautiful sight was presented by the great quantities of Matthiola sinuata in magnificent bloom, growing with the glaucous Eryngium and glaring golden Brassica. By the second Martello tower a nice patch of Lagurus cvalus occurred, and plenty of Orobanche amelhystea, while here and there might be seen bleached skeletons of Mibora minima. Between the sea and the hills appeared great patches of Ceutaurea aspera, the lower flowers of which were only in bloom. On i-eaching the hill slopes, a complete mass of beauties presented themselves, so that the exclamations of admiration, which had been popping off at no distant intervals all day, now came by volleys ; and down we lay among thousands of Dianthus prolifer, Linum angus- tifolium, Orobanche ccerulea, Centaurea aspera, Cen- taurea paniculata, and Scabiosa maritima. Next came a descent to St. Ouen's Pond, where, having seen Cladium Mariscus, we came upon Scirpus Tabernce- montana, followed by its rarer relative pungens, and eventually maritimus and pa uciflorus ; then came the prettily-veined leaves of Potamogeton plantaginens and the fugacious flowered Alisma ranunculoides ; after which a long search was made for the leaves, — it was too early for the flowers, — of Spiranthes a>sti- valis and Epipactis palustris. On the road to the Corbieres, Kaleria cristata, near albescens, Coryne- phonts canescens, Radiola milligrana, Trifolium arvense, Lepturus filiforme, Convolvulus Soldanella, Bromus Lloydianus, and Schlerochloa loliacea were found, but Solatium mittialum searched for without 252 HARDWICKE'S SCIENCE-GOSSIP. success. On the hill-slope below La Moye came a tract of ground covered with Sarothamnus prostratus, on which grew some fine Orobanchc major. About here Mr. Piquet had a week previously found Linaria Pdisseriana in plenty, but as we had searched with- out success a few days after, were not very sanguine about adding it to our store ; but, however, we care- fully searched among the Cusitela-covered Ulex and prickly Ritscus, and then, as these became less fre- quent where the hill-side was purple with Echium violaceum, and then higher still among myriads of Sedum Anglicum, yuncus capitatus, Trichonema columnce in fruit, Radiola milligrana, Helian- t/iemum guttatum surrounded with its quickly- falling petals, Sikne conica, Lotus angustissimus, Aira pnvcox, and Euphorbia Portlandica, but no Linaria. Some Jersey cows were browsing eagerly about the gorse clumps ; and as Mr. Piquet said they are very fond of the Linaria, its disappearance was at once laid to their charge. As no ready means of revenge presented itself, another search was made, this time rewarded with Asparagus prostratus and Aspknium lanceolatum, and at last, with the real Simon pure in fruit. Having mercy upon it, we selected only a scrap or two, and, elated, set off at a fast rate for St. Brelade's, where suddenly we had to halt to avoid the desecration of trampling upon a few hundreds of Trifolium strictum growing some 10 in. high. De- scending to St. Brelade's, Silene nutans, Silene quinque- vulnera, Scdum dasyphyllum, and Delphinium Ajacis were picked. The road to St. Aubyn's was bordered with Silene nutans and Scrophularia Scarodonia ; while, with vasculi, hats, books, and hands full of specimens, we trudged along up the sandy road, scarcely deigning to notice Polycarpon tetraphyllum, Oxalis stricta, Epilobium lanceolatum, and Hie- racim pilosis si mum, reaching St. Aubyn's in time for the train to bear us round the beautiful bay to St. Helier's, where something more solidly sustaining than cocoa had to be discussed previously to putting in press our numerous and rich collection. G. C. Druce. AN AUTUMN RAMBLE IN EPPING FOREST. Part I. By Dr. De Cresitgny. TO procure specimens of a late-flowering and uncommon Chenopod (C. nrbicum) from a locality on the borders of Epping Forest, we had lately occasion to make an excursion in that direction, when the opportunity was taken advantage of for a ramble through the shaded dells and broken uplands of the forest in search of fungi, which are always to be found there on the setting in of the autumnal rains, in great variety and abundance. Many clearances have been made of late years in the neighbourhood of Walthamstow and Wanstead ; consequently, although there are still many unenclosed patches of woodland thereabouts, of which the most consider- able extends southwards of Wanstead, we can hardly consider ourselves fairly within the precincts of the forest proper until we have left Woodford behind us. Traversing, then, one of these detached woods — that which lies between this place and Walthamstow, — we Fig. 206. a. Vertical section of an Agaric ( Trichohma nudits). b. Ditto of lamella; of ditto showing the trama continuous with the pileus. Fig. 207. Filamentous Trama of an Agaricus (Amanita nibcsccns. ) Fig. 208. Persistent Scales of the Cuticle of A. {Lepiota} rachodes. Fig. 209. Section of A (rtcurctus) Fig. 210. Decurrent lines ulmaritts. and ring on the stem of Amanita rubescens. turndown the Chingford road into the hollow below, where a lane, right, leads into a copse bordered by a rill and a narrow strip of pasturage ; beyond, left, is the warren and farmhouse, well known to ex- cursionists as Queen Elizabeth's Lodge ; onwards, a footpath to High Beech Hill. Forcing our way in this direction, at one time with difficulty through tangled and almost impenetrable thickets, at another crossing some open grassy glade, or stretch of HARDWICKE'S SCIENCE-GOSSIP. 253 pollard oak and hornbeam, where bramble and blackthorn scrub gave place to an undergrowth of bracken, and where progress was easier and less irksome, we gathered as we went anything and every- thing in the shape of fungus we could see, retaining, however, only two or three specimens of each kind. From the "King's Oak," near High Beech, the high road to Epping traverses the very heart of the forest : hence it is not far from an ancient intrenchment, called " Amesbury Banks," and whence we retraced our steps through dense thickets and interminable groves of lopped beech and other trees, until we reached the picturesque slope which rises behind Loughton. As anticipated, the heavy rains of August had i produced a more than usual abundant crop of fungi ; "m lift Fig. 213. Bulbous Stem and waned Cuticle of .-J. [Ama- nita) Ccciliie. Fi Fig. 211. Ring, Bulbous Stem, and Volva of A . [Amanita) fihalloides. Fig. 212. Cuticle of A. {Amanita) ru- \ bescens, showing the scattered mealy warts of the cuticle. Fig. 215. Floc- cose Trama of a I Cortinarius r. .. c (Trichloma) y. 214. Section of '•-/___ „ *c . f c. e viotaceus. nstulose Stems ot A. (Hypholoma) fascicularis. Umbonate and Fibrillose Pileus of an Hebeloma. Subumbonate Fibrillose Pileus of a species of Hebeloma, Fig. 219. Pileus clothed with innate hairy scales of Pholiota aureus (magnified). trudging onwards, first on one side and then on the other of this road, another central station is reached — "The Wake Arms," and where it is crossed by the road from Waltham Cross to Theydon Bois ; Fig. 2 1 6. Mealy subsquamulose Pileus of Clitocybe laccatus. Fig. 217. Clitocybe laccatus. and on sitting down next day to examine and sort the contents of our pockets, hat, and vasculum, we felt fairly bewildered at the sight of the spoils, and hurried multitudinous entries in our note-book. To take them scientifically, and in proper order of sequence, let us commence with the Agaricini ; those with a gilled or plated hymenium : these, of course, were the most numerous, and were easy to separate from the rest. Referring to " Berkeley's British Fungology," we find that they are all included in fifteen genera, of which some three or four are rare, or have but few representatives in England ; on the other hand, the Agarics proper are so numerous as to comprise twenty-seven sub-genera, arranged in five sections, according as the colour of the spores is white, salmon-coloured, tawny or ferruginous, purplish or brown, and black. The characteristics 254 HARD WICKE >S S CIE NCE - G O SSIE. of the genus are persistent membranous gills and a filamentous trama continuous with the pileus ; but those of the sub-genera are very miscellaneous and confused : differences in the character of the velum or veil, whether present or present only in the form of an annulus, or wanting entirely in any shape ; con- fluence or otherwise of the hymenophorum with the stem ; decurrence or other peculiarity of the lamella; ; peculiarities of the stem, of the pileus, of its margin ; presence of a volva or absence thereof. In one sub- genus there is no stem — Pleitrotus. Of this we gathered a specimen from the dead trunk of a tree : the gills •are narrow, and margin of the pileus remarkably in- curved. Illustrative of the scaly-cuticled sub-genus Lepiota we found a few specimens of L. rachoides growing singly in a hedge ; besides this peculiarity, it has a stem furnished with an annulus, and is alto- gether a pretty little plant. Not unfrequently A. {Amanita) riibescens was met with, rather a hand- some fungus with a brownish warty cuticle and white gills, bulbous and ringed stem : the rubescent cha- racter is not very decided, sufficiently so, perhaps, to warrant the use of the term ; the bulb and stem when broken exhibited this characteristic more clearly than the pileus : edible. Less frequent was another, — not edible as this, but very poisonous species, A. {Amanita) plialloides, with stem strongly ringed, and a bulb furnished with a volva free above ; white, except the upper part of the pileus, which has a yellowish tinge. A ringless but bulbous fistulose-stemmed Amanita we found in A. Cecilia, also furnished with a volva, and with a pileus more persistently waited than that of A. rubescens. It is a much smaller species, and the brownish colour of the pileus is of a colder shade, greyish or mouse- coloured. A. {Tricholoma) nudus we observed only in one place, a handsome, but probably very dan- gerous mushroom : there was one small patch of it, three or four growing closely together (fig. 206). Pileus obtuse, moist, pale violet shaded with brown ; gills and short, thick bulbous stem of a beautiful violet throughout. The warted scarlet pileus oi A. muscarius we looked for in vain, — one of the hand- somest, at the same time one of the most poisonous of its tribe. ( Tricholoma) A. ptrsonatus is more frequent, but grows singly, here and there, in open grassy places : the pileus is convex, obtuse even, moist and of a pale ochre-colour; gills dirty white, stem ring- less, firm, and covered with a stain of pale violet. On the stumps of decayed or felled trees was the well-known A. (ITyplioloma) fascicularis, with its dull rufous-coloured pileus, passing into yellow at the borders, yellow fistulous stems, and greenish-grey gills : and in many parts of the forest growing in patches, often of a circular- form, H. sublaterilius, much like the preceding species. Examples of a section of Agarics (among our specimens), characterized as having pilei clothed with fibrillose scales, usually umbonate (a), or sub- umbonate [b), and fibrillose stems, we have in two kinds of Hebeloma ; the colour of the cuticle in a is golden brown : and in A. (Clitocybe) laccatus we have a pileus the very reverse of umbonate, viz., the umbi- licate form : it grows on dead leaves abundantly in the forest ; colour variable, from flesh-coloured to cinereous grey and pale cobalt. Clitocybe candicans is also plentiful. On the margin of a pond, not far from the "Wake Arms," we obtained several fine specimens of A. (Pholiota) aitreus, a mushroom re- markable for its pileus brilliantly coloured of a golden tawny hue, and, examined with a lens, sprinkled with closely adpressed or innate hairy scales of an orange colour, which impart no doubt a brilliancy to the plant in its living state, but which fades away when no longer fresh. Last, and not by any means least of the Agarics, is a tall species of Collybia (C. radicatus), plentiful in the wood behind Loughton. It is furnished with a long tap-root, the stems at least six inches long, slender, and tapering upwards ; pileus of a greyish brown, smooth, moist, plane, and umbonate. (To be continued.) A GOSSIP ABOUT NEW BOOKS. ON nothing does a "war fever" leave its mark more impressively than scientific literature. The tide of true progress is then stemmed, if not rolled back. The literary history of the last two years proves how few important works of science have issued from the press. And yet that period has been marked by scientific discoveries of the most important and even sensational character. It is the epoch of the Telephone, the Microphone, and Phono- graph ; of the Radiometer, Otheoscope, and other instruments, which revealed to us the molecular mys- teries of matter. It is with much pleasure that we turn to a short notice of a few books which have for the last month or two been accumulating on our library table. The short space at our disposal does not enable us to do that justice to some of them which they require. "Tropical Nature," by Alfred R. Wallace (London : McMillan & Co.), deserves a leading place in any notice of new books. The volume consists of a series of essays, chiefly relating to animal and plant life in equatorial regions, speculations as to the colours of birds and animals, flowers and fruits, and how they have arisen through the process of natural selection. All are written in that delightsome manner which characterizes Mr. Wallace's other books. The chapter on humming-birds is one of the most charming ever penned by its original writer. That on the distribution of animals as indicating geographical changes is a re- markably clear piece of philosophical generalization. By this time most readers of natural history will have read " Tropical Nature," and our advice to those who have not yet had the opportunity is that they should HA RD WICKE'S S CIENCE- G 0 SSIP. 255 read it as soon as possible. " West Yorkshire ; an Account of its Geology, Physical Geography, Clima- tology, and Botany," by Messrs. James W. Davies and F. Arnold Lees (London : L. Reeve & Co. ). This book contains much valuable work. Few counties are more interesting geologically than Yorkshire, and many books and papers have been written upon it. All of these have here been duly arranged chrono- logically, and the authors always refer to such of their literary predecessors as have furnished them with material. The geological portion is written by Mr. James W. Davies, the hon. sec. of, the Yorkshire Geological Society, and all geologists will acknow- ledge that he has done his work conscientiously and well. The second part, devoted to physical geo- graphy and botanical topography, is the joint work of Messrs. Davies and Lees. The arrangement of the material is most excellent, and so clear and sug- gestive that the reader is enlightened instead of being perplexed by its abundance. Numerous maps and engraved sections assist the text, and these are of excellent execution. The geological structure of York- shire is treated of in detail, from the Lower Silurian beds to the Glacial series. The physical geography and topographical botany then follow in order, and one sees almost at a glance the relation between plant distribution and the physical geography of the valleys in which they occur, or the geological structure of the underlying rocks. A handsomely got-up volume of upwards of 400 pages thus represents a most creditable scientific industry on the part of the authors. The new term of Physiography (as Physical Geo- graphy is now called) has called forth a series of "manuals" devoted to its exposition. How import- ant is even an outline knowledge of nature has been shown by the success of Huxley's little book on this subject. There is always the danger of causing shallow-minded students to imagine they have nothing more to learn when they have acquired a well-defined idea of natural phenomena as a whole ; and on that account we object to ' ' physiography." But if books have to be written on this subject, they may as well be in good hands ; and we are therefore pleased to notice " The Physical System of the Universe," by S.J. Skertchley, F.G.S. (London: Daldy, Isbister, & Co.), which is intended as a manual of physio- graphy. It is a book, however, which will delight those who do not intend "going in for examination" more than those who do, for it is a well-written and very clear outline of the universe as a whole, and of the unity of natural forces. We know of few recent books which comprehend so much in so limited a space. All the recent discoveries in physical, natural, and geological science are included in Mr. Skertchley's book. It is a work which we hope will be read with the same pleasure that we have ourselves derived from it. "A Science Primer," by the Rev. Dr. Macvicar (London : W. Blackwood & Sons), although a small book in comparison with those above men- tioned, is a remarkable one in many respects. It professes to deal with "the nature of things." Its author is a man possessed of great ability, extensive reading, and a brilliant power of speculating. There are many subjects briefly discussed, especially those relating to molecular physics, which strongly impress us by the undoubted ability and originality of view with which they have been treated. Our readers will not always agree with the author, but few will come away from this suggestive little book unimpressed with new ideas. " The History of Glanville's Wootton," by C. W. Dale (London : Hatchard, Piccadilly), is a detailed account of the archaeology, zoology, and botany of a district in Dorset, after the manner of White's " Selborne," only arranged in chapters, instead of being given to the world in the form of letters. The book is very well got up, with capital paper and in clear type, and the few photographs which illustrate it are excellent. As for the rest, the work consists of lists of animals, vertebrate and invertebrate, and of plants, phanerogamous and cryptogamous, which have been found in the district of Glanville's Wootton. Mr. Dale has devoted much time and careful labour to his task, and as a consequence has given a very valuable little monograph to the world. " A Handbook for England and Wales " (London : John Murray), which should give, alphabetically ar- ranged, a short and trustworthy account of every town, village, and place of importance, with all relating to them of archaeological, geological, botanical, or geographical interest, was a happy idea. A handier book of reference could hardly have been prepared than has been now compiled. All depended, how- ever, upon the author and his ability to select just such material as would be valuable to the traveller, tourist, or student. We are happy to say that this has been done in the present work, and that, having tested, from personal knowledge of numerous places referred to, the pains taken by the author to insure accuracy, we believe it to be one of the best books of its kind which the well-known publishers have issued. "Holmes's Botanical Note Book," by E. M. Holmes, F.L.S. (London : Christy & Co.), may be utilized by the student as a means of acquiring a practical knowledge of botany. It contains diagrams showing the parts of flowering plants, directions for examining plants, the microscopical examination of plants, directions for describing plants in schedules, and a glossary. The schedules, however, form the principal part of the work, and these may be obtained separately of the publishers. The printed head-lines oblige the student to note down every feature of a plant, and in this way he will soon learn to look out for particulars which are too frequently shunned, because deemed troublesome to detail. We are much pleased with Mr. Holmes's note-book, and heartily recommend it to students. "A First Catechism of Botany," by John Gibbs 256 HARD WICKE'S SCIENCE- G OSSIP. (London: Simpkin, Marshall, & Co.). This is a new and enlarged edition of a very noteworthy little book, written by a botanist who is a fre- quent contributor to our pages. We have before expressed our liking for the book, and are glad to see it revised and enlarged. All young botanists would do well to get it. " The Creation of Moses and Science in Harmony," by Dr. Alex. Stewart (London : Elliot Stock), is another of those laboured productions in which so much intellectual force is thrown away in attempting to harmonize what have never been disturbed, except by men themselves. They frequently consist of bad geology and weakened theology, and are usually unsatisfactory. Correct science needs no harmonizing : incorrect science soon gets corrected. Meantime the great truths which theology has in its keeping have a sphere entirely apart from scientific investigation. As might be expected, the greater part of the book under notice is devoted to demolishing the theory of evolution. Would that such writers were wise in time ! No " reconciliations " would then be needed. To turn from these unsatisfactory subjects to note the appearance of the ninth edition of Proctor's "Half-Hours with the Stars " (London : Hardwicke & Bogue), is a pleasant change. The twelve plates of the maps are new, and in bolder execution, so that the astronomical student is considerably aided thereby. It augurs well for the spread of astro- nomical science when books of this class are so well received and largely circulated. A capital little book on human physiology, simply but attractively written, is Mrs. F. Fenwick Miller's "House of Life" (London: Chatto & Windus). It is a work which should be in every family library, not to lie idly on the shelves but to be read by every member. "The Sight, and how to Preserve it," by Dr. H. C. Angell (London : Hardwicke ik Bogue), is another work of a similar kind, bringing within intelligent knowledge those parts of our own frames about which we have hitherto been in such culpable ignorance. Perhaps no sense is so much valued by us as that of sight, and there is scarcely any other so abused. Take one hundred people whom nobody would call other than educated, and let them answer a few questions as to the structure of the eye and the nature of vision, and perhaps not five would pass the examination entitled to an elementary certificate ! This ought not to be ; and it is pleasant to see the leading medical specialists devoting what little spare time they have to popularly instructing the masses in the subjects to which the former have devoted long and useful lives. Nothing could be more understandable, more practical, or more useful, than Dr. Angell's re- marks on " The Sight and how to Preserve it," and everybody with eyes ought to read them. "Nutrition in Health and Disease," by J. H. Bennet, M.D. (London, J. & A. Churchill). This is the third edition of a valuable work, chiefly written for public rather than special readers, but which the latter cannot fail to estimate very highly. The title is a very happy one, and rightly expresses the character of the work. Its aim is the same as that of the two little works just mentioned, — the endeavour to make people acquainted with their own bodies, and what is taking place in them every hour of the day under the name of "nutrition." " Phosphates in Nutrition." by M. F. Anderson (London : Bailliere, Tindall, & Cox), is a work of a similar important nature. Its endeavour is to show the importance of certain inorganic materials in the food, and their functions in the tissues. In this way the author's views lead him to some novel explanations of the causes of certain diseases hitherto but little understood. The chapter on the "Mineral Theory of Wasting Diseases " is especially noteworthy. "English Folk-Lore," by the Rev. T. T. Dyer, M. A. (London: Hardwicke & Bogue), cannot fail to be a popular and widely-read book. " Folk- Lore," or the wisdom of the common people, as expressed in their proverbial and other sayings, has of late years been a fruitful study. All of us are acquainted with some of these sayings, and their quaint utterance frequently carries us back to the days of our childhood. There are scarcely any natural phenomena which have not been thus noticed ; whilst the pages of our best poets frequently sparkle with the richest and quaintest of these gems of folk-lore. Mr. Dyer's book is a very attractive-looking volume, both outside and inside, for it has been given to the world in a handsome cover and good paper and print,— the very auxiliaries to make such a work successful. The author is very happy in his style, for it is light and airy without being flippant. Evi- dently he is interested to his subject, as he sometimes rises almost to enthusiasm. We have chapters on the folk-lore of plants, birds, animals, insects, and reptiles ; the moon (a fruitful source of old-world sayings) ; besides half a volume relating to birth, death, marriage, &c. MICROSCOPY. The Congress of Microscopists, held at Indianapolis, Ind., August 14th, 15th, 16th, and 17th, was a great success as regards numbers pre- sent and results arrived at. Delegates were in attendance from all parts of the Union, sixteen societies being represented by delegates. Many papers of value to the working microscopist were read. Amateurs had ample opportunity to profit by the work of older workers. Results were compared, and many delightful acquaintances formed. Dr. R. H. Ward, of Troy, N.Y., was elected President, and Mr. II. F. Atwood, of Chicago, Secretary. One evening was devoted to a "conversazione," at which the public attended, and were duly pleased with the popular slides which were chosen for their entertain- HARDWICKE'S SCIENCE-GOSSIP. ■57 ment. Perhaps the most enjoyable part of the meet- ing were the "seances," held each evening in the various rooms in the hotel. No such gathering of microscopists could come together and not bring about a discussion on "Angular Aperture"; high and low angles were both well represented, the former by such well-known authorities as Prof. J. Edwards Smith and Dr. Geo. E. Blackham, while Prof. Romyn Hitchcock, of New York, supported the latter. While the question will remain an open one for long time yet to come, it is but fair to say that many gentlemen who had always used low-angled lenses prior to the meeting, went away essentially high-angled men. Several of the American dealers made fine displays of microscopes and objectives. Of the English manufacturers, Beck & Crouch were fully represented through their respective American agents. Before the congress adjourned, the " Ame- rican Society of Microscopists " was formed, Pres., Dr. R. H. Ward, Troy, N.Y. ; Sec, Henry Jameson, Indianapolis, Ind. ; Treas., H. F. Atwood, Chicago, 111. The next meeting of the new society is to be held in August, 1879, at Buffalo, N.Y., and from its auspicious beginning, and the enthusiasm manifested by its members, it is fair to predict that the future meetings will be of more than ordinary interest. Microscopical Society of Liverpool. — The seventh ordinary meeting of this society was held at the Royal Institution, on Friday, the I Ith October. After the ordinary preliminary business, a paper was lead on "The Life History of a hitherto Unrecorded Septic Organism"; with drawings from life; illus- trated by means of the Oxy-hydrogen Lantern, by Rev. W. II. Dallinger, F.I?. M.S. At the conclu- sion of the meeting a conversazione was held, when the following subjects were illustrated : — "Alga?, Marine," T. C. Ryley ; "Carchesium Polypinum," natural state, mounted, Isaac C. Thompson; "Dia- toms," Charles Symes, Ph. D. ; " Durio Zibetha- rinus, — decolorized leaf of from Borneo," polari- scope, the President; " Oscillatoria," mounted slides and alive, the President; "Polyxenes lagurus," Rev. W. H. Dallinger, F.R.M.S. ; "Pond Life," George Thomas; " Section of Wigan Coal," John H. Day ; " Spores of Fungi," Rev. W. Bannister. A Remarkable Photograph. — The "American Journal of Microscopy" for August, 1878, describes a marvel of photographic manipulation in the form of a micro-photo of the Lord's Prayer. Our readers are well acquainted with the ordinary micro-photo- graphs of engravings, &c, and for which a power of 30 diameters is usually the extreme limit of amplifi- cation which can be used effectively, the higher powers destroying the sharpness of the outline. The above-mentioned photo is only y^ of an inch square, 01" tttuotx °f a square inch (one of the squares in Maltwood's finder would contain it four times), and will bear inspection with \ objective and B ocular- These slides are the production of Mr. Langenhcim (of New York ?). ZOOLOGY. Marine Dredging. —I have collected for years on the Lancashire and North Welch coasts, and I thought I should like to try a fresh locality. Know- ing the ruggedness of the coast scenery of the Isle of Man, I proposed making that place the theatre of my operations, and I can certainly say I never saw happier hunting-grounds for the naturalist. Ane- mones by thousands, Algce, Red, Brown, and Green, in wonderful profusion ; in fact, almost every depart- ment of Marine Zoology is well represented. I was enchanted, and determined that next year, if spared, I should devote a week or so to collecting. A friend of mine who brought some anemones back with him, sent for me to name them for him. Among a lot of Actinia mesembryanthemum, Tcalia crassicornis, Aiilhea cercus, &c., I found one I had not previously seen, but which I had no difficulty in recognizing as Bnnodes gonmacea (the Gem Pimplet of Gosse). It is a charming animal, well worthy of its name. It is still alive and healthy, having had two feeds of mussel. The only locality Gosse gives for this anemone is "the south-western and southern shores of England and Ireland, on exposed rocks and shallow pools between tide-marks." If this locality is new, I gladly record it for the benefit of brother naturalists. It is not uncommon even in Douglas Bay. In answer to " C. E. R.," I may say this anemone requires no peculiar treatment. It is easy to keep alive if the aquarium is in good condition ; also, the best method of feeding baby anemones is to let them feed them- selves, and they'll not starve. In fact, none of the animals in a large tank I had were fed for twelve months, and I can aver that there were no deaths, and the whole affair required less looking after. I am much obliged to " H. C. C. M." for description and figure of Tangle-dredge. I have no doubt it will be a very useful instrument to the marine zoologist. I was very sorry to hear of his want of success, but can readily divine the cause. Since the establishment of public aquaria there has sprung up at various parts of the coast quite an army of collectors. The locality he mentions is very familiar to me, having collected on its shores and dredged in its deep waters many times. The channel in the straits (north entrance) is very narrow, and runs close to the Anglesea shore, but my boatman took me to dredge on the low banks of mud, which I knew were exposed every tide, and it was only on showing him I knew better that I got my dredge down on prolific ground. I have tried many times to procure a "Ball's Naturalists' Dredge," but have as yet been unsuccessful ; none of the London fishing-tackle-makers know anything about 253 HARD WI CKE'S SCIENCE- G OSSIP. it. Could you or any of your numerous readers tell me where I could get it ? — J. E. Lord, Rawtenstall. A Seal in a Trap. — A seal has recently been engaged in exploring the interior of Suffolk. It ventured up a dyke near Leistbn, in Suffolk, and was shot whilst lying there. As one might have expected, it was a young animal, weighing just thirty pounds, and measuring forty-one inches in absolute length. Living Beetles as Female Ornaments. — We hope the attempts to introduce living exotic beetles as female ornaments will fail, if only in the interest of the animals themselves. We read in a fashionable newspaper of one which has been adorning a lady's shoulders for six weeks, and subsisting for that period without food ! The lady did not know (and probably did not care) how long it had been without food before she had it ; and as it came from central America, it may have been some time. Are we so hard up for ornaments that we must resort to these aboriginal customs ? They are understandable in the case of those African beauties who are obliged to dispense with any other dress, but we have not quite retro- graded to that condition. " Science Made Easy." — Under this title Mr. Thomas Twining has issued a series of six familiar lec- tures on all kinds of scientific subjects, but chiefly those bearing on economic industries. They are issued in shilling parts by Hardwicke & Bogue, 192, Picca- dilly. The type is large, and pleasant to the reader's eyes ; the illustrations of the very best and most effective kind. Science teachers and others interested in the spread of scientific education will find these "Lectures " invaluable. We should like to see them used in every Board School in the kingdom, and we would strongly advise such of our readers as are con- nected with those institutions, either as managers or committee, at once to obtain copies of these lectures, and endeavour by their means to lay that foundation of scientific instruction which to England, more than any other country, is absolutely indispensable. Popular Science. — The Popular Science Revieio for October contains articles on "The Sand and Brittle Stars," by Professor Martin Duncan ; " Coal and Colliery Accidents," by Mr. C. De Ranee, F. G. S. ; " The Radiolaria as an order of Protozoans," by Dr. Wallich ; "The Eucalyptus globulus," by M. Betham Edwards ; and on "The Extinct British Wolf," by J. E. Harting, F.Z.S. Rare Birds. — From various paragraphs in last month's Zoologist we gather that the Hoopoe has been unusually abundant this year on the south and south- western coasts. Observers mention it as being seen at Chichester, in the Isle of Wight, and near the Land's End. It has also been seen near Gloucester. As one might expect, in most places the beautiful stranger was shot! Perhaps in time natural selection will endow rare birds with more sense than to approach the English coasts. Provincial Natural History. — We have re- ceived a copy of Part 4, vol. ii., of the " Transactions of the Norfolk and Norwich Naturalists' Society," containing a most able address by the President, Mr. F. W. Harmer, F.G. S., which deals chiefly with the difficulties of the Darwinian theory, and is a capital defence of it against some recent attacks. It also contains papers on the Norwich crag, by Mr. Harmer ; a list of plants found near Cromer, by Professor Babington ; letters relating to the Natural History of Norfolk, by Mrs. R. Lubbock and Professor A. Newton ; on William Arderon, an old Norwich Naturalist, by F. Kitton ; notes on Norfolk Mam- malia, by F. Norgate ; Meteorological Notes, by John Quinton, jun. ; Ornithological Notes, by H. Stevenson ; and Heteroptera and Homoptera of Norfolk, by J. Edwards. The "Report of Proceed- ings" of the Norwich " Science Gossip Club " has also been forwarded to us, containing an abstract of all the papers read last winter, embracing a variety of scientific subjects, all ably and intelligently treated, together with the Address of the President, Mr. S. C. Sothern. This is a very popular society; and one which those young naturalists would do well to correspond with who wish to found an unpretending science club. Part 10 of vol. i. of the " Transactions of the Watford Natural History Society " is also to hand, containing index, list of members, Sec. The Kingfisher in London. — On Monday, 30th September, when crossing Westminster Bridge, I was surprised to see a kingfisher fly across the Thames from the Houses of Parliament towards St. Thomas's Hospital, and then cross the bridge and fly down the river. It seemed at a loss to know where to settle. I see by the Standard it has been noticed lately in the Serpentine. — J. L. Hawkins. The Bottle-head Whale. — On the 31st August I wrote a letter to the editor of Chambers's Journal respecting the capture of a cetacean. It happened on the 22nd ult. near Nice. He advised me to for- ward to you the drawing and description of the same. As to external appearance, this cetacean had a great likeness to the Bottle-head, of which a de- scription is given in Chambers's " Encyclopcedia," except that the surface of the body was all over covered with narrow irregular white stripes ; but when I went on the spot (three days after the capture) they had almost disappeared. A more remarkable difference between the two specimens lies in the skull,. as you can judge from the adjoining drawing. Would not this induce us to establish a new species ot Hyper- obdon, contrary to the general opinion that there exists one species only ? The total length of this cetacean was 570 metres. It was driven ashore alive, and was condemned to total destruction had I not interfered. The skeleton has been so preserved and brought to Nice. A similar, but not quite identical specimen, was caught many years ago on HARD W I CKE ' S S CI EN CE-GO SSI P. 259 our coast, and described by our naturalist Risso. There were stripes on the body, as in the present one, but the forehead was even more flat, and the dorsal fin trapezoidal instead of triangular ; so, at any rate, it was represented by a drawing. No description was given of the skeleton. — Hippolyte de Pierlas, Nice. BOTANY, Alpine Flowers. — Hermann Midler writes to Nature to say that in the Alps he has found some instances of different forms of flowers in plants of the same species, which, as far as he knows, have been hitherto undescribed ; of which he gives a short notice as follows : — Geranium sylvaticum is in one locality near the Albula Pass gynodioecious, with large-flowered hermaphrodite, and small-flowered female stems. Veratmm album, Dryas oetopetala, and Geum reptans are in all the localities where he has examined them androdicecious. Astrantia minor offers a quite peculiar sort of androdioecium, some stems bearing, as in other Umbelliferce, in the same umbel hermaphrodite flowers and male ones, other stems producing solely male flowers. Dianthus superbus seems at first sight to exist in three forms : (1) Stems with hermaphrodite flowers, being per- fectly proterandrous and producing a moderate quan- tity of whitish pollen ; (2) stems with female flowers containing very conspicuous rudiments of stamens, but pollenless anthers ; (3) stems with pistils remain- ing imperfectly developed, and with anthers con- taining abundance of a brown powder. At first sight H. Midler thought their flowers to be male, and the brown powder to be pollen- grains ; but under the microscope the latter proved to consist of grains, the diameter of which is only about one-eighth of that of the pollen-grains of the hermaphrodite flowers. He supposes, therefore, these grains to be the spores of some species of fungus, and Dianthus superbus to be gynodioecious. Vegetable Teratology. — The state of Plantago .lanceolata in which the spike is replaced, surrounded ■or surmounted by a tuft of leaves, appears to be very plentiful this season, as I gathered no less than thirteen such specimens, all growing in different places, when taking a walk on August 16th. In several of these the spike is surmounted by from two to five leaves, while in others a second spike springs from the centre of the leafy tuft. In one specimen the rosette of leaves surmounting the stem is pretty large, and ten spikes spring from its base, their stems varying from half an inch to four inches in length, and the whole forming a sort of irregular umbel. The dry summer, succeeded by showers at the end of July and beginning of August, has probably some- thing to do with the unusual abundance of these ■curious aberrations. — D. Douglas, Leith. Beeches and Hollies ; Oaks and Haw- thorns.— A friend of mine tells me that about the middle of September he was in the New Forest, where he noticed that beneath the large beech-trees there was an abundant under-growth of hollies, but no hawthorns, whereas under the oaks there was an abundant growth of hawthorns, but no hollies. I should be glad to have an explanation of this. — R. H. Alcock. " Flowerless Plants." — Under this title Dr. Franklin Parsons has contributed two most readable articles in the recent numbers of The Naturalist, which, as our readers are aware, is the journal of the Yorkshire Naturalists' Union, and their general field club record. Some time ago we heard a whisper that The Naturalist would have to be discontinued for lack of support. We sincerely hope our York- shire friends will not allow such a stigma to fall on their hearty and generous county. Vegetable Moth-trap. — Mr. W. Simpson, of Dartmouth, has described a large plant of Physianthus albicans, belonging to the Asclepiadce, which flowers there in the autumn very profusely. He says it is one of the most deadly moth-traps he knows. Many days running he found from two to eight Humming- bird Hawk-moths caught by their probosces in the flowers, where they died in about two minutes. Other insects were also found dead in the flowers. The plant is of trailing habits, and easily trained over porches. Have any of our correspondents noticed its insecticide habits ? European Fungi. — All botanists will be rejoiced to hear that Dr. M. C. Cooke, A.L.S., and Mons. L. Quelet, M.D., have written conjointly a work, entitled " Clavis Synoptica Hymenomycetum Euro- preum," which has been just published as a handsome little volume by Messrs. Hardwicke & Bogue at 7s. 6d. In this book every species of fungus heretofore found in Europe is described in brief but excellent and easily understandable Latin ; so that it is a work which thus requests a world-wide circulation. The high reputation of its authors as fungologists must make the present work a hand-book to all botanists. Double Flowers. — A few days ago we examined the flowers of the common Petunia, and found the stamens had developed into petals. Each, so-formed petal was distinct, so that the internal structure was thus polypetalous. We have noticed that whenever the stamens are thus modified in gamopetalous flowers, the newly-formed petals do not cohere. Does not this indicate that polypetalous corollas must have preceded the gamopetalous in the order of floral evolution ? "The Herefordshire Pomona." — Under this title the first part, price 15s., has just been issued by Messrs. Hardwicke & Bogue, of a most magnificent work, containing coloured figures and descriptions of the most esteemed kinds of apples and pears. 260 HARDWICKE'S SCIENCE -GOSSIP. coloured plates are of the very highest degree of excellence, and it is long since we have seen illustra- tions of natural-history books so artistically executed. There can be no doubt that this artistic superiority will of itself give this much-needed work an extensive circulation. It is edited by Dr. Robert Hogg, F.L.S., and is chaperoned, we believe, by the well-known and energetic Woolhope Naturalists' Field Club. The letter-press contains outline woodcuts of every variety of apple aud pear in cultivation, besides other engravings of high merit. ksu mm Fig. 220. Median prolification in Common Daisy. Monstrosity in the Daisy. — The above is an illustration of median prolification occurring in a specimen of the common Daisy [Bellis perennis) found at Cobham. It occurs frequently in gamosepalous and gamopetalous flowers, when it is known under the term of "hose in hose," but we have never seen it before in a composite flower. GEOLOGY. The late Mr. Thomas Celt, F.G.S. — It is with much regret that we have to announce the death of Mr. Thomas Belt, F.G.S., one of the most dis- tinguished of the younger school of naturalists, who died after a short illness, of rheumatic fever, at Denver, United States, in the 46th year of his age. He was a frequent and valued contributor to our columns, and only a few weeks ago sent us the account of his discovery of a human skull at Denver, under circumstances indicating high antiquity. He was the author of several works on natural history, the best known of which is the "Naturalist in Nicaragua." What are Conodonts? — At a recent meeting of the Natural History Society of Glasgow, Mr. John Young, F.G.S., read some notes on a group of fossil organisms termed Conodonts, which have recently been discovered in the Carboniferous limestones of the Ayrshire coal-field by Mr. John Smith, of the Eglintoia Ironworks, Kilwinning. These organisms are minute, slender, conical, tooth-like bodies of varying forms, of a brownish colour, and having a glistening or enamelled appearance ; few of them exceed an eighth of an inch in length, many of them being much smaller ; they are mostly of a comb-like form, being serrated along one of the sides with a row of teeth, often of unequal length and stoutness. Conodonts were first brought under the notice of geologists by Dr. Pander in 1856, in a work descriptive of the fossil fishes of the Silurian formation in Russia, in which country they are found ranging in strata from the Upper Cambrian to the Carboniferous deposits. In America they have also been discovered in the Devonian and Carboniferous formations ; Professor Newberry having figured and described a number of Carboniferous forms in his work on the palaeontology of Ohio. But until this discovery of Mr. Smith's, no remains of Conodonts seem to have been noticed in the strata of the several formations in Britain. Mr. Young stated that he had recently the opportunity of sub- mitting Mr. Smith's specimens to a Canadian palae- ontologist, Mr. Jennings Hinde, while on a visit to this country, and he stated that they were closely related to the American forms, especially to those described by Prof. Newberry. Although Conodonts have now been known to palaeontologists for more than twenty years, great doubts still exist as to what group of animals these curious teeth-like organisms belong. Dr. Pander, their first discoverer, thought they were the teeth of a group of cyclostomatous fishes allied to the present lampreys. Professor Owen doubts their fish affinities very much, and says some of them may be the dentated claws of small Crustacea ; others may be the teeth booklets or denticle; of naked mollusca or annelides. Professor Newberry thinks Dr. Pander is right in referring them to fishes ; if so, fish-life will have to be carried forward to a much earlier period in the history of our globe (namely, the Cambrian), no undoubted fish-remains being at present recorded from strata older than the Upper Silurian. These Conodonts are found in both the upper and lower limestones of the Ayrshire coalfields; upwards of thirty forms have already been discovered, and it is probable the number may be increased by further researches in the deposits. Along with the Cono- donts, Mr. Smith has also found a new group of fossil sponges, different from those of Hyalonema, which he discovered last year in the Lower Limestone series at Cunningham Pedland, near Dairy. The silicious spicules of this new group of sponges from the Upper Limestone are of various types, and Mr. Young stated that at present the forms were being examined by Professor Voting and himself, and they intended bringing them up fit a future meeting. The same deposit also contains an interesting group of small forms of mollusca, in a fine state of preservation, many of the univalve or spiral shells, having their mouths HARD WICKES SCIENCE- G OSS IP. 261 quite entire, and several of them being of species not formerly recorded from the Carboniferous strata of the West of Scotland. Perpendicular Holes in Rocks. — In a sec- tion of what is, I believe, inferior oolite, underlying sand at Manton Warren, near Kirton-in-Lindsey, Lincolnshire, there are exposed to view perpendicular holes of some ten inches in diameter, passing through the successive layers of stones, and through the stones themselves, as if bored. A depth of 5 ft. is exposed to view, but how much deeper they go I do not know. I observed three within a few feet of each other. The diameter does not appear to decrease with the depth. Will any one state the probable origin ? Are they "pot-holes"? The stone obtained has been broken up for roads. The warren is elevated above the surrounding country. — J. Ar. £>., Tuxford. A New Eocene Mammal. — A new genus of pachydermatous mammals, nearly allied in its denti- tion to Pakeotherinm, has been recently found in the Lower Eocene beds of Transylvania. The fearful generic name of Brachydiastematherium has been given to this extinct creature. A New Oolitic Pterodactyle. — Hitherto no Pterodactyle remains have been found in America of older date than the Cretaceous period. News comes to us, however, of a species of Pterodactyle which has just been found in the Oolitic rocks of Wyoming, whose outspread wings must have been five feet from tip to tip. It has been named P. mon- tanns. Geology of the American Lake Region.— Mr. George Maw, F.G.S., writes as follows on this subject : — " We must set aside the view that the chain of large lochs is due to glacial excavation ; for Ontario, the deepest of the lakes, running east and west, is in lower latitude than Huron, the bottom of which is 510 feet above that of Ontario ; and there is no high ground about Ontario from which ice could have originated as a preponderating mass, capable of excavating Ontario 600 feet deep ; nor is there any mass of debris anywhere to be seen about the lake as would represent such an excavation." NOTES AND QUERIES, Water-Boatman. — Your readers, who are no doubt familiar with the very savage instinct of this insect, may be interested to learn my experience of him. He really appears to be quite shark-like in his nature. A few weeks since, whilst staying with some friends in Cambridgeshire, to amuse the children I collected from several ditches various Sticklebacks, Whirligigs, Newts, a Frog, &c, and three Water- Boatmen. These I thought might possibly make a nice little "happy family"; but my hopes were doomed, as the boatmen soon proved themselves to be most formidable. Theyj attacked each of the animals before-mentioned except the Whirligigs, whose movements were too quick for them. After killing the insects and Sticklebacks, one fastened himself to the frog's leg.—//. Hall. Laburnum Flowers.— Laburnum trees are in blossom here now (September). Is not this an unu- sual phenomenon? — R. II. Nisbet Browne, Folkestone. Palm Roots. — With reference to the question propounded in your issue for October, as to whether palm-trees have tap-roots or not, 1 find, on consulting the highest authorities in the library of the Linna:an Society, that the roots are fibrous masses. Stephen Endlicher, in his "Genera Plantarum," published in 1836-40, writes thus : — " Palm re Plantre liques- centes, acrobryje habitu peculiari. Radix palaris, mox evanida ; radicular plurima;, cylindrical, sim- plices et ramose, fibrillosre, in inolem conicam saape ex parte hypogream dense compactce." Loudon, in his " Encyclopaedia of Plants," writes: — "The lofty stems of palms are supported by a mass of fibrous roots, which frequently cross along the surface of the ground." In the " Horuis Indicus Malabaricus," by Henry Van Rheede, published in 1628, the author states that the Palm diffuses its root-fibres widely in a transverse direction. With regard to the interpre- tation of the verse of Psalm xcii., where the righteous are compared to the vigour of the Palm-tree, it would be presumptuous in me, as a layman, to offer an opinion or discuss it in a theological point of view. Canon Tristram, in his "Natural History of the Bible," alludes to the 12th verse of the above Psalm : ' ' Here the life of the righteous may be compared to the Palm-tree for many reasons. It flourishes in a barren soil ; it requires constant moisture ; it is a lofty tree, a straight tree ; it is always growing so long as it lives, and it is always green, and always bears fruit as far as possible from earth, and as near as possible to heaven. We may add, too, the elas- ticity and upward growth of its fibre, even when loaded with weight." The following is extracted from Mr. Hooker's translation of Le Maout et Decaisne: — " Palms, perennial woody plants, elegant or majestic in habit. Primary root decaying early and replaced by numerous adventitious roots, which are developed at the base of the trunk, and form a compact conical mass, often very voluminous and rising more or less above the soil, and in certain cases raising the trunk and supporting it like the shrouds of a ship." The Palm-trees with which I was most familiar in India were the Cocoa-nut and Date. Neither had tap-roots. Professor Bentley, in his "Manual of Botany," writes: "The true or pri- mary root, from its being formed by a direct elongation of the radicle, generally continues to grow downwards for some time at least, and hence forms a main trunk or axis from which the branches are given off. Such a root is termed a tap-root, and may be commonly observed in dicotyledonous plants. On the contrary, the roots of monocotyledonous and acotyledonous plants, wbich are adventitious, are usually of nearly equal size, and given off in variable numbers from the radicle." The above remarks will, I think, show that the palms do not possess tap-roots. — John Colebrook. Roots of Palm-tree. — There are several kinds of trees called Palm, and the first question to be settled should be, Which is the Palm-tree of the Bible ? Many are of opinion that it is the Phcvnix doxtylifera, or Date-palm, which affords food to both man and animals ; and I will, therefore, give you a short description of the Palm met with by Bonar in the desert of Sinai. He says : " The roots 262 HARD JVI CKE'S S C1ENCE- G O SSI P. are unlike any other tree-roots we had seen, and peculiarly fitted to absorb every drop of moisture that the sand contains. In general form and structure they put us in mind of the Dahlia and Ranunculus, consisting of long fleshy strings or ropes, shooting straight down into the soil in numbers quite beyond our reckoning, and extending over a large circle, whose width we could not ascertain." Again, the same writer observes: "What an apparatus for drawing up the moisture of the desert." The roots of all the Palmacea are described as fibrous : no matter what the form may be, or the size of the stem, it is invariably woody, and the roots fibrous. This is the sum and substance of all I have been able to call to mind as having read of the Palm-tree ; but many who are better versed in the matter will reply to "A. B.'s" question. — Helen E. Watney. Cat and Rabbits. — A curious case of the adop- tion by a cat of some rabbits has come under my notice. The mother of the rabbits died, and the kittens having been destroyed, the cat suckled the rabbits and brought them up. This occurred in a small village in Surrey. May not this throw some light on the story of Romulus and Remus being suckled by a wolf, supposed by historical research to be fabulous ? — H. P. Barclay. Egg Drills. — Beta will be able to obtain the instruments described in my article on collecting birds' eggs, of Mr. J. Everard, surgical instrument maker, 34, Berners-street, W. — T. Southwell. Marsh Tit. — In answer to " C. C.'s" question (Science-Gossip, page 234) "as to whether the curious note, resembling the whetting of a saw, belongs to the Marsh Tit," it is certainly not the Marsh Tit, Parus palnstris, because that peculiar note is heard in situations where the Marsh Tit is not found. We believe the note to belong to the Great Tit, Parus major. The song is heard as early as January, often from the top of a high tree. The bird is very remarkable from the similarity of the simple note to the sound made in filing a saw. Hence, in Staffordshire, the bird is commonly called " Saw-whetter. " — Elizabeth Edwards. Migrating Birds. — Last Sunday I heard, about eight o'clock p.m. the whistling of innumerable birds, passing over Northallerton in a south-westerly direction. I presume them to have been a flock of plovers. They continued to pass over until eleven o'clock. Are these birds regular migrators, or does the present case betoken the approach of a severe winter ? —J. A. Wheldon. Sea Anemones.— " C. E. R." will be glad to learn that I kept two of Bitnodes gemmacea for the greater part of a year, and might have done so for a longer period, as they were still in first-rate condition when the accident occurred which caused their death. I kept them in a glass bottle of about six inches diameter, with a loosely-fitting stopper always on, and they were fed twice a week with bits of shrimp, such as one buys at the fishmonger's. I find that small and delicate sorts do well in these bottles ; the glass stopper prevents evaporation. Small plants appear quickly all over the sides, and altogether they are the most self-compensating aquaria which I know. I have kept them for long periods without diminution of the contents, and consequently without having the water more dense than at first. Will " C. E. R." be good enough to describe his treatment of Tealia crassi- cornis ? I have read, and have been told on good authority, that it is impossible to keep it. My attempts have always failed ; but, owing to circum- stances, I have been unable to obtain one of which I could say with certainty that the base had not been injured. — IV. G. H. C, Frome. Zoological Notes. — There was shot on theTees^ on the 30th September a female Great Northern Diver {Co/ymbits artiais), also a Stormy Petrel (P/ocel- laria pelaqica). Two swans were also shot, and are now in the hands of Mr. Richardson, of this town, for preservation. During the last fortnight large flocks of Wild Duck, Teal, Widgeon, &c, have been passing on their autumnal migration; several large flocks- of geese have been seen passing over the Cleveland Hills. A Death's-head Moth was also captured at the end of September. — George Simpson, Middlesbro', October 6th. The Song Thrush and Blackbird Pairing. — In confirmation of Mr. Robert Holland's article in Science-Gossip of June, on "Remarkable Nests," it might be well to insert the following well-authen- ticated instance. In the island of Howth my daughter saw a cock blackbird sitting on a nest where previously a hen thrush had been sitting. There were young ones in the nest, which was not lined. There can be no doubt as to identity, as it was re- marked by others. — S. A. Brenan, Clk., Allan Rock, Co. Tyrone. Songs of Birds, &c. — A work on the songs of birds and other animals as related to human music, and as furnishing a basis for a theory of melody, has occupied me two years. The chief impediment is the lack of received observations. I should be most grateful if you kindly assist me in any of these ways, viz. : — I. Reference to books, &c, containing songs of birds or other animals in musical notation. (Cqpies of these would be still more valuable.) 2. Results of your observations on bird or other songs. 3. Is there noticed with any frequency in these songs the occurrence of any fundamental intervals of human music, — as the octave, fifth, fourth, and third ? ' 4. (A question only seemingly irrelevant) — If sing- ing in the ears has ever happened to you, have any of the fundamental intervals above mentioned been observed between the minute tones ? 5. Any information that may occur to you as bearing on these subjects. All contributions will be acknowledged, and the results sent to you on publication. — 916, Washington Street, San Erancisco, Cal. Parasites on Birds. — Are there any means of destroying the parasites on fantail pigeons ? The fan- tails are kept in a large open room at the top of the house, with the window constantly open, so that they fly in and out at pleasure. The parasite which most infests them is about the eighth of an inch long, dark in colour, very slender in proportion to its length, so that to an ordinary observer it hardly appears to be an insect ; there is also another, round in shape, perhaps one-sixteenth of an inch in diameter, and pinky in colour. The birds have fresh water every day for bathing. Is there any danger of the creatures- forsaking the bird for the human habitants of the house, as the pigeons are very tame, and perch on head or shoulder ? And will the Editor kindly tell Mrs. Geveke if there is any sensible reason why pigeon feathers should not be used for stuffing pillows, &C.—AI. G. Palms at Shanghai (page 178). — Your corre- spondent, Mr. Nelson, calls attention to the fact ot Palms enduring frost and snow at Shanghai with im- punity. Judging from the short and negative descrip- tion which he gives, viz., that they are not "as HA R D WI CA'E' S S CTENCE - G 0 SSIP. 263 graceful as the lofty Cocoa-nut trees of Ceylon, or the Sago-palm of Borneo," I am inclined to think that the species to which he alludes is Fortune's Chamrerops, which is an inhabitant of the cooler portions of China, and one or two specimens of which might be seen, a few years ago, growing in the open air at Kew. But the general question of acclimatization is one well deserving the attention of botanists and florists. If all plants that are uninjured by frost or snow in their own country could be guaranteed to be equally hardy in England, the matter of acclimatization would be very simple. Our shrubberies, and heaths, and hedgerows would be enlivened with many a bright gem from Canada, Switzerland, and the mountainous portions of hotter lands. I have lately returned from a sojourn in Tasmania, and there, every winter, the lovely Fern- trees, which abound in the mountain gullies, are weighed down with snow ; and quaint Gums {Eucalypti) and feathery Wattles {Acacia) nourish in a temperature rivalling in coolness that found in many parts of England. But nothing is more certain than that neither Fern-tree, Gum, nor Wattle will exist in Great Britain, except in one or two favoured situa- tions. The reason of this apparent paradox is not far to seek. The incapability of these foreigners to bear the severity of an English winter is simply due to the difference between their respective sum- mers. In the countries named, during the summer months, there is an almost continuous outpouring of the sun's actinic rays, thoroughly ripening the wood, and giving life and vigour to the contained fluids, while, at the same time, the atmosphere is com- paratively dry, and the air is not eternally loaded with superabundant moisture. We all know how different from this is the normal condition of the English summer. We certainly get the advantage in the greenness of our meadows and the fresh appear- ance of our vegetation, aspects for the most part unknown in the countries alluded to ; but the in- cessant humidity, and the general absence of sunlight, are fatal to the well-being of plants which in other lands, thanks to the summer solar ray, can defy the frost and snow of winter. A very careful selection might add a few foreign names to our native species ; but before Palms and Fern-trees grace our land- scapes, the theory of "heredity" must be worked out patiently and slowly, and then possibly the "survival of the fittest" may take place. — IV. W. Spicer. Clams. — I have tasted clam soup in America. It is somewhat like oyster soup, but I believe it is made, not from the giant-clam, Claina gigas, but from the soft clam of the northern shores, the Mya arenaria, which is very much used in America as an article of food. It is found in great abundance on the coast of New England, and makes good bait in cod and haddock fishing. The shells are dug up from thin beds at low water. They are found a foot or so deep below the surface, their siphon-tube projecting upward in the hole by which they communicate with the water at high tide. They are " shucked," that is taken out of their shells, and salted for the fisheries. As many as five thousand barrels a season are thus consigned. Clams are often mentioned in the early history of the Plymouth colony; and judging from scalloped clams, roasted clams, and clam soup, I have no doubt but what Mr. W. A. Cairns will find preserved clams very fair eating for persons who rejoice in a good digestion. — H. E. Watney. A Mysterious Gift. — An account of the first ascent of the Peter Botte Mountain is given in the Penny I\ fa gazine for 1833, which is probably the one referred to by your -Charles Madeley, correspondent, Alfred Paterson. NOTICES TO CORRESPONDENTS, To Correspondents and Exchangers. — As we now publish Science-Gossip a week earlier than heretofore, we cannot possibly insert in the following number any communi- cations which reach us later than the gth of the previous month. M. (Bradford). — You will find instructions as to preparing such skeletons as you require in the chapter on " Bones," in " Collecting and Preserving Natural History Objects," pub- lished by Hardwicke & Bogue, price 3s. 6d. C. A. Cowley. — Your specimen is the beautiful and rare Astrantia major, found in Shropshire. See articles on it at page 8 of Science-Gossip, vol. for 1873. M. J. Wilde. — -No rock specimens, such as described in your letter, have yet reached us. O. P., Cambridge.— '1 he Agaric is evidently a very young state of Agaricus 'Mycena) polygra?n>nus. Fr. M. C. C. David Scott. — Your plants are: 1. Anthemis nobilii ; 2. Cardamine amara ; 3. Parnassia palustris ; and 4. Saxi- fraga stellaris. Young Muscologist.— Get Hobkirk's " Synopsis of British Mosses," price 10s. 6d., published by Lovell Reeve. A. Bernard. — The curious monstrosity of the stems of the Malva moschata (which we are much obliged to you for sending us) is described by Dr. Masters in his " Vegetable Teratology" by the name oi fasciculation. It is caused by the abnormal growing together of branches, just as the normal substance we call "horn" is due to the agglutination of hairs. J. Sims. — Of course we are obliged to trust to the honour of those who use our exchange column, and we cannot be expected to guarantee good faith. We shall always feel obliged if " exchangers " will notify to us any breach of faith. We shall then take good care to exclude the offenders for the future. A Young Geologist. — Your fossils are : — 1. Pcctunculus glycimeris (young specimen) ; 2. Fragment of Natica ; 3. Purpura lapillus. The crystals are selenite, or sulphate of lime, derived from the London clay. See chapter in Taylor's " Geological Stories," entitled " Story of the Crags." J. K. (Yarmouth). — Trimmer's "Flora of Norfolk" is a well-known and highly esteemed work. (2) We have not heard of any recent numbers of Donkin's " British Diatomacese " being issued ; nor can we guess the cause of the delay, unless it be the author's professional engagements. Your plants are named correctly in the parcel sent us. J. Kirdy. — You may get the materials mentioned in Dr. Woodward's process for staining muscular tissues from any first-rate chemist. W. J. R. — Write to Mr. Van Voorst, publisher, who has (we believe) published lists for labelling, such as you require. J. Anderson, jun. — The Fuchsia with the calyx segment transformed into a green veined leaf is very curious, and very instructive as an illustration of reversion. J. W. N. — The slide contains elytra, &c. of the female of the common water-beetle {Dyticus margi?ialis). The female is so unlike the male in appearance that it was formerly re- garded as a different species. A. Wheldon. —Thanks for your monstrosity of Plantago lanceolatum, showing three heads on one stalk. K. D. — Will you kindly send us your query again, as we have mislaid it. G. R. Redgrave. — The malformed rose with mass of petals arranged around the stem beneath the main mass is a case of what Dr. Masters terms " mediate prolification." See his masterlv work on " Vegetable Teratology." Gregori'us and A. G. Wright. — See article on "Pre- serving Fungi," by Mr. Worthington Smith, the eminent fungologist, in " Collecting and Preserving Natural History Objects." T. Watson (Burnley).— Your best plan would be to offer the instrument for exchange in our " exchange " column. Or advertise it for sale in the magazines you name. There are none better. A Subscriber. — Your grapes are attacked by the usual vine disease, which is a fungus. For its treatment consult any work on grape-culture. H. W. S.-We like the paper, and shall insert it at our earliest opportunity. F. VV. Hytch. — There is a " Postal Microscopical Club" established, of whose rules, &c. you will find a full account in Science-Gossip, vol. for 1873. W. Gaist. — From the description of your larva we conclude it is that of the goat-moth (Cossus ligniperda), but we cannot judge definitely without seeing it. Leave it where it is. 264 HARD WICKE'S SCIENCE- GOSSIP. F. Alexander. — Your larvae of Jacofora will hybernate. Benzine may be used in stuffing moths ; and a little tine chalk or fullers' earth mixed with the wool, to absorb the natural grease. You will find a good description of FiliAenchila in Hooker's " Student's Flora of the British Islands." Lymnea involuta. — We should feel obliged if some of our correspondents in the Killarney or other districts would supply us with a few living specimens of this mollusk. The sooner the better. J. Sinel. — The parasitic insect of which you sent us a sketch is named Gamasus coleoptratormn. A. C. — Your moth was a specimen of Ar. rhomboidea, whose wings had been aborted. It reached us alive, but the wings never fully developed. L. S. — The objects on surface of the leaf are not due to any parasitical disease, but are caused by an insect, a species of Cyuips, which punctures the skin. "Constant Subscribers." — We wish our correspondents would adopt some other nam de plume. We have several this month, and are in a complete quandary as to which is which. To one who writes under this name we beg to say that no plant was enclosed. EXCHANGES. Microscopical cabinet for exchange, capable of holding 1,920 slides lying flat ; mahogany and deal, value £\ ; for further particulars write to Wm. J. Fuller, Corve Lodge, Greenway-road, Redland, Bristol. Wanted, vol. ii. of " Coloured Illustrations of British Birds and their Eggs," by H. L. Meyer (1842). — Jos. Sinel, Bagot, Jersey. For unmounted pieces of skin showing scales from the back and belly of Lizard, send object of interest to G. Moore, ic, Porchester-street, near Clifford-street, Birmingham. Offered, Turton's " British Shells, Land and Freshwater." in exchange for any other Book of equal value, Fossils, or any Natural History Objects. — Address, T. C. Maggs, Yeovil. Offered, 84 numbers " Nature," 2 vols. " Popular Science Review," Hogg "On the Microscope," Latourneau's " Biology," and Withering's" Botany." Wanted, vols. 3, 4, and 5 of Jeffrey's " British Conchology," or back numbers of "Zoologist and Naturalist" prior to 1878. — J. D. Butterell, 26, Coltman-street, Hull. For cleaned Forannnifera from Ireland send good Slide or Material, not polariscope, to A. Alletsee, 11, Foley-street, London, W. Several pairs of Cowries (C. caput scrpentis) for exchange for Shells, &c. — Mrs. Skilton, London-road, Brentford, Middlesex. For Cuticle of Indian Corn (Zea Mais) send a stamped directed envelope to W. H. Gomm, Sandwich, Kent. Rare British Plants dried, for Lepidoptera, Birds' Eggs, or Shells. — L. R. H.,4, Ellesmere-villas, Devonshire-road, Forest- hill. Offered, Nos. 246, 1280, 1381, 1403, 1479, 1505, and many others, for Nos. 187, 325, 500, 518, 615, 626, 676, 728, 762, 823, 985, 997, 1299, 1300, 1471, 1622. — E. D. C, 25, Oxford-road. Kilburn, London. For leaf of Deutzia scabra unmounted, send stamped envelope or other microscopic object to M., 3, Belmont Villas, New Brompton, Kent. For injected Human Kidney, injected Human Intestine, stained Human Intestine, and Japanese Grass, all in balsam, send pure gatherings of diatoms or any well-mounted balsam slides to J. A. Kay, Mansion-house, Brompton, Chatham. I have Cassell's History of the Franco-Prussian War (com- plete, weekly numbers, unbound). Required micro slides. — W. H. Skan, 15, Brownlow-street, London, W.C. I have five numbers (one more completes the work) of Twining's " Science Made Easy," illustrated, Hardwicke &Co., quite new and cost 5s. Should be glad to exchange them for British Lepidoptera, side-blown eggs, or tolerably recent numbers of "The Entomologist," "Science-Gossip," or "Zoologist," bound or unbound. — W. Barrett Roue, 165, White- Ladies-road, Bristol. A few Adders, preserved in spirits of wine, in exchange for rare Plants, Mosses, Lepidoptera, Shells, Fossils, or offers. — R. Renton, Fans. Earlston, N.B. L. C, 7th edition, Nos. 84, 104, 133, 146, 176, 184, 237, 253, 363. 527> 6"» 682> 683. 7°4, 767> 769> 831, 838, 856, 858, 864, 882, 913, 929, 971, 979, 988, 1000, 1001, 1 130, 1334, 14S5, 1519, 1539, and many others, in exchange for other rare British Plants. Send full list of duplicates to J. Tempere, 12, Cecil-street, Moss-side, Rusholme, Manchester. Beautifully mounted Slides (crystals) for the polariscope in exchange for objects of interest, mounted or unmounted. — A. Smith, Essex-road, Islington. London Catalogue, 7th ed. offered, 2, 39, 47, 79, 267, 277> 394> S91) 83I> 858. 974. 1014, 1036, 1284, 1310, 1504, and 1650, in exchange for other rare British plants. — W. Jones, 32, Manchester-street, Oldham. Sphirrotheca castagnei on Hop offered for foreign Marine Alga;. — E. C. J., Monson Nursery, Red Hill, Surrey. First-class Slides given for good material, Foraminiferous, &c, in quantity, either prepared or in the rough. — James Green, March. L. C., 7th edition, Nos. 38, 273^, 534, 809, and others, in- cluding many from the Lake District, for 183, 553, 588, 590, and others. Lists exchanged. — A. W. Preston, 49, Cheltenham- street, Barrow-in-Furness. Rare British Vertigos. Correct and well-authenticated (duplicate) specimens of Vertigos nntivertigo, pnsilla, minutis- sima, alpestris, substriata, and angustior, offered in exchange for really good and choice Foreign Shells — land preferred to marine. Also offered, Limncra invohlta, Succinea oblonga. Wanted, Limncea Burnetti, Acme lineata.. — W. Sutton, Upper Claremont, Newcastle-on-Tyne. For exchange, an Herbarium of British Phanerogamous Plants, containing over 600 species, many rare, in good condi- tion. Offers requested, list will be forwarded. — A. Macindoe, Maryhill, Glasgow. Offered, Helix revclata, Clausilia biplicata, Planorbis lineatus, &c. &c, and many British marine. Wanted, British Vertigos and Northern marine species.— A. H. Cooke, King's College, Cambridge. For piece of Chinese Rice-paper (pith of tree) mounted send well-mounted object to Thos. Shipton, Chesterfield. Lists exchanged. Birds' Eggs, side-blown, well-marked, labelled, picked specimens ; also beautiful specimens of British Butterflies and Moths, well set ; also British Coleoptera, splendidly set, ne%v style. Lists free. Exchange side-blown eggs new to collec- tion. Foreign correspondence solicited. — Henry Sissons, West- bourne-road, Sheffield. Several packets of Diatomaceous Earth for exchange for mounted sections of Coniferous wood (three packets) for good slide. Wanted also the Cub Mosses and Selaginelli. Fossil Polyzoa in exchange. — G. R. Vine, Attercliffe, Sheffield. For piece of Sea-mat (Flustra truncata) send stamped directed envelope. Also for portion of lung of White Whale (Beluga leucos) or two or three embryo cuttlefish (Sepia officinalis) send well-mounted object to E. M., 20, Crossley- street, New North-road, London. Several immense living Chrysalides of Acherontia Atropos offered in exchange for good Natural History Slides or micro- scopical accessories. — W. Lane Sear, Margate, Kent. Side-blown Birds' Eggs and Skins. Will exchange about 200 varieties, guaranteed true typical specimens, richly marked ; dates and localities supplied. Lists exchanged. — John William Sissens, 11, Priory-road, Sheffield. Wanted to exchange, Mounted Objects, principally photo- graphs, for good mounted objects. — E. Atkins, Chemist, 200, Essex-road. To exchange, a quantity of Diatomaceous Earth for mounted objects or anything of interest. Stamp for reply. — A. Smith, 198, Essex-road. Wanted, varieties of Succinea (especially .9. putris, var. vitrea) and other species. Good exchange given. — Mr. Marshall, 1, Portland-cottages, Portland-place North, Clap- ham, London. BOOKS, &c, RECEIVED. " English Folk-Lore." By the Rev. T. F. Thistleton Dyer, M.A. London : Hardwicke & Bogue. " Pleasant Days in Pleasant Places." By Edward Walford,. M.A. London : Hardwicke & Bogue. " Annual Report of the U.S. Entomological Commission on, the Rocky Mountain Locust, 1877." Washington : Govern- ment Printing Office "Section Cutting." By D. J. & A. Churchill. " Popular Science Review." " Land and Water." "Journal of Applied Science." " Chambers's Journal." " Feuille des Jeunes Naturalistes.' "Midland Naturalist." "The Scottish Naturalist." Various Pamphlets. &c. &c. &c. Sylvester Marsh. London October. Communications received up to 9TH ult., from: — F. K.— T. S.— M. S.— J. C— J. H.— C A. C— H. C C— A. A.— W. J. F.-J. M.— F. E. M.— W. H. G. -J. D. B.— F. I. B.— J. L. H.-E. E.— J. A.— J. M. H.— J. W. J.— G. T. B.— H. E. W.— H. L. B.— E. F. C— T. W. D.— D. S. —Prof. B.— S. T.— C. A. 6.— W. J.— E. C J.— A. B.— J. N. D.— W. G. H. C— R. H. A.— Dr. P. Q. K.— J. E. L. —A. S.— W. E. F— J. T.— A. G. W.— G. S.— J. P. G.— G. A. G.— W. H. S.— J. S.-W. B. R.— J. K.— R. R.— J. A. K.— Dr. M.-U. W. M.— J. A. W.— R. D.-H. J. R.— W. C— W. S.— A. W. P.— A. M.— A. H. C.-J. G.— T. S.— E. M.— K. D. — H. S.— W. L. S.— H. I. T.— E. S.— R. M.— I. T.— W. E. G.— G. R. V.— W. S.— J. K.— H. W. S. - F. W. H.— J. T. M.— A. S.— E. A.— &c. &c. „ HARD WICKE'S S CIENCE - G 0 SSI P. 265 QUARTZ, AS IT OCCURS IN THE LAKE DISTRICT: ITS STRUCTURE AND ITS HISTORY, PART III. By J. CLIFTON WARD, F.G.S., F.R.M.S., &c. -Z3J5 ill lS3n im^llll mzftk oJ^^jy ^cH^j Jrf^1^ W^WliA vPpj iXs^* FEW years ago, being anxious to apply Mr. Sorby's method to the granites and granitoid rocks of the lake- country, I examined a number of slices of the granite rocks, and mea- sured nearly fivehundred cases of liquid-cavities, ascertaining the relative size of the vacuity (or bubble) to the liquid-cavity. My method of proceeding I will describe directly, but I will at once state that the result arrived at in the case of the Skiddaw granite, for example, was, that its consolidation took place under a pressure of rather more than an equivalent of 51,000 ft. of rock, and that the mean pressure under which all the principal granitic and granitoid rocks were consolidated was equivalent to that of 44,000 ft. of rock. My experiences in the course of this investigation may be of interest to some who wish to undertake original work of a similar kind. (For the Memoir containing the investigation as a whole see Quar- terly Journal of the Geological Society, vol. xxxi., p. 568.) The object-glass generally used was a i-in. (of Collins), with a C eye-piece, the combination magni- fying 665 times. When I first began my measure- ments I used a neutral-tint glass reflector, and traced on paper all the best-defined fluid-cavities, making a note by the side of those in which the vacuities showed a constant spontaneous movement. I soon found, however, that on a comparison of a consider- able number of drawings, the fixed bubbles were almost invariably relatively larger than those which showed this free movement. Hence I was led al- together to reject from my measurements all cases in which the bubble was fixed, and in which it would seem either that gas had been primarily entrapped, No. 1 68. or that in the making of the thin slice leakage had occurred in the cavity. This last case must neces- sarily often occur in the making of thin slices, espe- cially as the liquid-bearing cavities are frequently so irregular in shape and prolonged into horns and fine points. I then gave up tracing the outlines of cavities on paper, and measured the relative size of bubble and liquid-cavity directly by means of a Jackson's micrometer, with divisions equal to Too00th of an inch. This micrometer being placed in the eye-piece, the fine divisions could be brought over the bubble and liquid-cavity, and their relative size at once estimated with tolerable accuracy. But a little consideration will make it evident that measure- ment of a liquid-cavity in one plane would be of little use unless the cavity be exceedingly shallow and lie along that plane. Hence it became neces- sary to take this further precaution, viz., to rely only upon the measurements of those cases in which the tiny bubble (or vacuity) moved freely into all parts ot the liquid-cavity without going out of focus ; this would imply that the cavity was of tolerably uniform depth, but little more than the depth of the diameter of the bubble. And it was found that, when I restricted my measurements to these cases, there was a fairly-marked uniformity in the ratio between vacuities and liquid-cavities occurring in the quartz of the same rock. Thus, take as an example two different rock-slices of the same granite •154 •154 •154 •160 •180 •180 •154 '154 No. 1. •162. No. 2. V / /•166 •125 •166 •180 •200 •166 •166 •166 ■154 •166 •142 V142 •164. 266 HARD WICKE 'S SCTENCE-G OSSIP. In No. I there are five cases in which the whole liquid-cavity is 6J times the size of the vacuity, one case in which it is six times the size, and two cases in which it is only 5J times. The mean '162 is pro- bably not far from the truth. It maybe difficult to realize the size of these liquid- cavities and their contained bubbles. Those reliable for measurement are extremely small, sometimes less ^th of an inch in diameter. Much larger than T cavities generally occur in plenty ; but these seldom exceed the -j-oWth of an inch in length, and in them the bubbles either have no movement, or but a very slight or sluggish one. In fact, such is the minuteness of these cavities and their number, in many cases, that more than a thousand million might be contained easily within a cubic inch of quartz, and sometimes the contained water must make up at least 5 per cent, of the volume of the containing quartz. In some cases the liquid-cavities are much arranged along lines, as in the quartz crystals occurring in the ArmbothDyke. Occasionally, however, liquid-cavi- ties are met with in quartz crystals of veiy considerable size, such that the movement of the bubble can even be recognized by the naked eye. Having accumu- lated a sufficient number of reliable measurements, and struck the mean for any one rock, such as the Skiddaw granite, the calculation of the pressure under which the granite was formed is proceeded upon by mathematical formulae furnished by Mr. Sorby's investigations, the temperature of a dull red heat visible in the dark (68o° F.) being assumed as the probable temperature of consolidation. The result, in the case of the Skiddaw granite, is that a pressure equivalent to 52,000 ft. of rock must have been necessary to compress the liquid so that it would fill the cavities at a temperature of dull red heat. The next question bearing upon this result is one for the field-geologist alone to determine. What is the greatest thickness of rock which can have been removed from over the mass of the Skiddaw granite as we now see it exposed ? Geological investigation cf the whole district leads me to infer that at one time the granite must have been covered by some 30,000 feet of rock — including Skiddaw slates, vol- canic series, and Upper Silurians. But we have seen that the calculated pressure is equivalent to 52,000 ft., hence the pressure to which the consolidating granite (and therefore quartz) was subject was greater than what could be due to the mere weight of overlying rocks. How, then, was this pressure applied ? We have seen that the condensed liquid confined within the quartz has remained as a registering thermometer, to show the existence and amount of the pressure, and geological examination of the district further informs us that the overlying 30,000 ft. of rock was in some way elevated and contorted, — being also slowly removed by denudation. Thus we have physical evidence, from two different sources, of the existence of great pressure exerted upon the granite- forming mass ; evidence derived from the liquid- cavities and their contained bubbles, and evidence in the rocks overlying the granite of such pressure having produced elevation, contortion, cleavage, and general metamorphism. It is further interesting to notice what would be the probable heat at a depth of 30,000 ft. according to our estimates of known increase on descending through the crust of our globe. If we take that increase as 1° F. for every 49 ft. (Mr. R. W. Fox, Brit. Assoc. Report, 1857, p. 91), we find that at a depth of 30,900 ft. the temperature would be 3600 C. (6800 F.), or that of a dull red heat visible in the dark, and just the temperature at which we were supposing the granite was formed. Thus, to sum up our results in the case of the Skiddaw granite : — 1st. It is probable from geological evidence that this granite was consolidated at a depth of about 30,000 ft. 2nd. An increase of i° for every 49 ft. on descend- ing gives a temperature of 3600 C. (6800 F.) at a depth of 30,900 ft. 3rd. Microscopic evidence, deduced from examina- tion of the liquid- cavities in the quartz, gives a calculated pressure under which the quartz was con- solidated at a temperature of 3600 C. (6800 F.), equivalent to 52,000 ft. of rock. 4th. As the calculated pressure thus far exceeds (by 22,000 ft.) that due to the estimated thickness of overlying beds, or, what is the same thing, to the estimated depth at which the granite formation took place, it follows that there must have been a great amount of available pressure to be exerted upon the rocky crust around, and hence we find evidences of folding and contortion of the rocks, and of their up- heaval and general metamorphism around the granitic area. The case of the Skiddaw granite will suffice as an example of this mode of treatment. I have elsewhere {Quart. Joum. Geol. Soc, vol. xxxi., p. 568) treated all the other granitoid rocks of the Lake District in the same way, and with very similar general results. There are yet, however, one or two points I should like to call attention to. The first of these~is the general absence among the liquid-cavities in the quartz of Lake District rocks of crystals of various salts, such as have been found in plenty in some other districts. Are we to infer from this that the liquid enclosed at the period of the for- mation of the granites was less saline than in some other cases ? Or is impossible that a more extended investigation would make it appear otherwise ? Another thing worth noting is the general absence, as far as I have been able'to judge, of cavities in the quartz containing, not water, but liquid carbonic acid, which in some other rocks and other districts are not infrequent. While thus calling attention to various points con- nected with the formation of quartz-be aring rocks of HARD Wl CKE 'S S CIENCE - G OSSIP. 267 the district, I am far from claiming to have examined into the question exhaustively, and would gladly see other workers take up the subjectmore completely,and either prove or disprove the results already obtained. It is evident that microscopic examination throws light not only upon the origin of such quartz-bearing rocks as granite, but also upon that of quartz as an accidental and accessory mineral among rocks, and upon the mode of formation of quartz veins. We are, in fact, led to see that heated water containing silica in solution has played a most important part in geological history, that such water has sometimes been diffused through a rocky magma at a dull red heat, under enormous pressure, and finally become entrapped in millions of minute cavities in the solidi- fied rock ; sometimes it has worked its way up along cracks and fissures, and deposited quartz in those fissures, forming veins ; sometimes circulating throughout the mass of a rock, it has deposited the quartz in all irregular cavities or vesicles, at a less degree of temperature ; and finally we recognise the same heated water fully charged with silica rising to the surface in the form of the geysers of Iceland, and playing a large part in all volcanic outbursts. Surely there can be few thoughts more surprising than this, that every piece of granite we pick up contains in its quartz particles thousands of minute liquid-cavities, and, moreover, that every such liquid-cavity in- cludes a tiny vacuous bubble in constant tremor or active motion, such motion, it would seem, having been kept up for the countless ages since the granite was first solidified deep down in the bowels of the earth. Truly, we learn great things from study of the most minute. NATURAL HISTORY IN THE SEVENTEENTH CENTURY. By F. Kitton, Hon. F.R.1VLS., &c. Part III. THE first part of the treatise is devoted to hunting- dogs — CanesVenatici. "But because we English men make a difference between hunting and fowling, for they are called by these seuerall words Venati and Aucnpium, so they term the dog who they vse in these sundry games by divers names, as those which serue for the beast are called Venatici, the other which are vsed for the fowl are called Anciipat&rij. The first called Venatici I deuide into fiue sorts, the first in perfect smelling, the second in quicke spying, the third in swiftnes and quicknes, the fourth in smelling and nimblenes, the fift in subtility and deceitfulnes, herein these fiue sorts excelleth." The description of each kind of dog is preceded by the derivation of its name, of which we give some examples. "Of the Dogge called a Terrar, in Latine Terrarius. " Those whom we call Terrars, because they (after the maner and custom of Ferrets in searching for Connies) creep into the" ground, and by that meanes make afraid, nippe, and bite the Foxe and the Badger in such sort that they either teare them in peeces with their teeth, being in the bosom of the earth .... or at least through conceived feare drive them out of their hollowe harbours, in so much that they are compelled to prepare speedy flight, and being desirous of the next (albeit not the safest refuge), are at leisvre taken and intrapped with snares and nets laide ouer holes to the same purpose. " Of gentle Dogges semitig the hauke and first of the Spaniell called in Latine Hispaniolus. ' ' The common sort of people call them by one gene- ral word, namely Spaniels, as though these kind of dogs came originally and first out of Spaine. " There is also at this day among vs a new kinde of Dog brought out of France (for we Englishmen are marueilous greedy gaping gluttons after noueltiesand couetous cormarants of thinges that be seldome, rare, strange, and hard to get.) And they be speckled al ouer with white and black, which mingled coulores incline to a marble bleu, which beautifieth their skins and affordeth a seemely show of comlinesse. These are French dogs, as is aboue declared already." The treatise concludes with remarks on the diseases of dogs and their remedies, of which one specimen will suffice. " If a dog grow lean, and not through want of meat, it is good to fill him, twice or thrice with Butter ;. and if that does not recouer him, then it is a signe that the wonne vnder his tongue annoieth him (which must be presently pulled out by some Naule or Needle), & if that satisfie not, he cannot liue, but will in a short time perish. . . . Dogs are also many times bewitched by the onely sight of inchanters> euen as infants, Lambes, and other creatures, accord- ing to Virgils verse — Nescio quis teneros oculns mihi fascinat agnos. For the bewitching spirit entereth by the eie into the hart of the party bewitched : for remedy whereof they hang about the neck a chain of corall, as for holy hearbs I hold them vnprofitable. " Scepticism is said to be the great fault of scientific men of the present day. This sin cannot be laid to the charge of the writers on natural history in former times, and least of all to the Rev. E. Topsell ; in proof of which we gave a copy of ' ' the true picture of the Lamia." " This word Lamia hath many significations, being taken some-times for a beast of Lybia, sometimes for a fish, and sometimes for a Spectre or apparition of women called Phairies. And from hence some haue ignorantly affirmed that either there were no such beastes at all, or else that it was a compounded monster of a beast and a fish. " Our author quotes a whole host of Greek and Latin writers who had heard of some such monster ; N 2 268 HARD Wl CKE 'S S CIE NCE - G 0 SSI P. but as their descriptions are very vague, he thinks they have mixed up a good deal of fable with them. To leave, therefore, these fables, and come to the true description of the Lamia, we have in hand : — "In the foure and thirty chapter of Esay [Isaiah] we do find this beast called Lilith in the Haebrew, and translated by the auncients Lamia, which is there threatned to possesse Babell. Likewise in the fourth chapter of the Lamentations, where it is said in our English translation that the Dragons lay forth their brests. In Hrebrew they are called Eihannm, which by the confession of the best interpreters cannot sig. nify Dragons, but sea calues being a general word for strange wild beasts. How be it, the matter being wel examined, it shall appeare that it must needes be this Lamia, because of her great breastes, which are not competible either to the Dragon or Sea calues, so then we will take it for graunted by the testimony of holy Scripture that there is such a beast as this. Crisostimus Dion also writeth that there are such beasts in some part of Libia, having a womans face and very beautifull, also very large and comely shapes on their breasts, such as cannot be counterfeited by the art of any painter, hauing a very excellent colour in their fore parts, without wings, and no other voice but hissing like dragons. . . . The hinder parts of this beaste are like unto a Goate, his fore legs like a Beares, his vpper parte to a woman, the body scaled all ouer like a Dragon,* as some have affirmed by the obseruation of their bodies, when Probits the Emperor brought them forth in publike spectacle." Gesenius in his Commentary" on Isaiah, says : " Lilith is, in the popular belief of the Hebrews, a female spectre in the shape of a finely dressed woman, which in particular lies in wait for and kills children, like the Lamise and Striges of the Romans." In his "Anatomy of Melancholy " Burton remarks that "The Talmudists say that Adam had a wife called Lilis before he married Eve, and of her he begat nothing but demons. " One of the most remarkable animals figured in this veracious history is the Mantichora. ' ' A beast, or rather monster (as Ctesias writeth), is bred among the Indians, hauing a treble row of teeth below and aboue, whose grealnesse, roughnesse, and feete are like a Lyons, his face and eares like vnto a mans, his eies gray and collour red, hiss taile like the taile of a Scorpion of the earth, armed with a sting, casting forth sharp pointed quils, his voice like the voice of a small trumpet or pipe." A long chapter is devoted to the Unicorn, in which he discusses the probabilities of the existence of such a beast, " whereof diuers people in every age of the worlde haue made great question." The Rev. E. Topsell, however, is quite satisfied of its existence, and he silences his opponents with the following unanswerable arguments : — * It is from this description that the artist has evolved the drawing, of which we gave a copy last month, omitting the well developed avopuov aiColoy. " David, in the 92 Psalm, says, ' My horn shall bee lifted vp like the horn of a Vnicorne,' whereupon all Divines that ever wrote have not only collected that there is a Vnicorne, but also affirme the similitude to be betwixt the kingdome of Dauid and the home of the Unicorne, that as the home of the Unicorne is wholesome to all beasts and creatures, so should the kingdom of Dauid be in the generation of Christ. And do we think that Dauid would compare the vertue of his kingdom and the redemption of the world unto a thing that is not, or is vncertain and fantastical. The Lord speaketh in this manner to lob, Will the Vnicorne rest and serue, or tarry beside thy cratches (Mangers, from this word is derived the name of the childs game of scratch cradle, properly cratch cradle or manger-cradle, in allusion to the manger at Bethlehem), canst thou bind the Vnicorne with a halter to thy plough to make furrows, or will he make plaine the clots of the vallies ? Likewise the prophecy of Esay, the 34 chap., and in many other places of Scripture, whereby God himselfe must needs be traduced if there be no Vnicorne in the world." Among the varieties of sheep described, he includes one of somewhat doubtful existence, viz. the Musmon or Musimon of Latin authors, and which was sup- posed to be a cross between a ram and a goat. "Pliny makes mention of a beast called Ophion,* and he saith hee found the remembrance of in the Grecian books, but he thinketh that in his time there was none of them to be found in the worlde ; heerein he speaketh like a man that did not knowe God, for it is not to be thought that hee which created so many kindes of beasts at the beginning, and consented of every kind two, male and female, at the generall deluge, would not afterward permit them to be destroyed till the worldes end, nor then neither, for seeing it is apparent by holy scriptures that after the world ended al Creatures and beastes shall remain vpon earth as the monuments of the first six daies worke of Almighty God for the further manifestation of his glory, wisedome, and goodnes, it is unreasonable to imagine that any of them shall perish in general in this world." If this theory be true, naturalists may reasonably hope to find the Dodo and great Auk still existing. Many of our readers will, we fear, be inclined to ask the use of rescuing from oblivion the errors and fallacies published centuries ago. From a scientific stand-point the answer must, perhaps, be in the negative ; but may it not be worth our while occa- sionally to take a retrospective glance, if only to ascertain the progress" that has been made ? And it ought also to teach us to avoid dogmatizing — one of the greatest faults a scientific mind can be guilty of, Apart from its scientific merits or demerits, this book is of considerable interest to the student of English, * This, Topsell says, is identical with the Musmon. HARDWI CKE ' S S CI EN CE-GO SSI P. 269 particularly with regard to its orthography. Many peculiarities will be noticed in the extracts we have given ; for example, the indifferent use of v and u ; the occasional reduplication of the final consonants in nouns, to which an e is sometimes added ; the termi- nation ness, with only one s ; and the omission of the ' in the possessive case. Some of the woodcuts are fairly well executed, and occupy a whole page. The book concludes with an epilogue to the reader, in which he says : " I do require al men of consieence that shall euer read or see these Histories, or wish for a sight of the residue, to help vs with knowledge, and to cei tifie their particular experiences in any kinde or any one of the liuing Beastes, and with all to con- sider how great a task we do vndertake, trauelling for the content and benefit of other men, and there- fore how acceptable it would be vnto vs, and procure euerlasting memorie to themselues, to be helpers, encouragers, ayders, procurers, maintainers, and abettours to such labor and needfull endeuour as was never before enterprized in England Farewell. " A NEW COLLECTING BOX. SOME time ago you did me the honour of admit- ting to your pages illustrations of the " Sear " collecting bottle, which I have reason to know has been useful to many naturalists. I now beg to introduce to them a little contrivance which I have Fig. 221. — New Collecting Box, i full-size, closed. boxes, all of which are like the top A, made of fine wire gauze, and thus the specimens are kept separate while air passes freely to all. The collector can open his case hours or even days after his excursion Fig. 222. — Ditto, § full-size, open. tested, and found good for practical work, in the form of a light tin collecting box. The annexed sketches are almost self-explanatory. The notches at a a a allow the introduction of "small deer" without imperilling the escape of previous captures. The dotted circles show the position of the bottoms of the Fig. 223. — Annular Top of ditto, with wire lattice, full size. without the certainty which exists in pill-box captures of finding half his subjects smothered, and the other half destroyed by ferocious companions. The box is very strong, very light, and inexpensive, and may be obtained of Messrs. Thomas Bentley & Co., of Margate, to whom I have given the pattern. W. Lane Sear. A FEW WORDS ABOUT A LITTLE GNAT. ON the 1st July a friend gave me two ounces of Thames water, which had been drawn from the cistern supplying his house ; and this small quantity contained more than thirty worm-shaped creatures, which, upon examination, I found to be the larvae of some kind of gnat : the largest were about a quarter of an inch long. V- Fig. 224. — Larva of Gnat, natural size j-inch. The larva of this species has a brown head, with the eyes, mandibles, and a fine line round the neck, dark brown; the thorax and the abdomen pale greer. Two prolegs project from the under side of the prothorax, and two from the last segment of the abdomen, which has also, at its extremity, three 270 HARDWICKE'S SCIENCE-GOSSIP. appendages, and on the top two pencils of hair, each pencil being supported on a short stalk. I put my specimens into a small glass vessel. After some hours I found several tubes of cobweb- like texture, open at both ends, and slightly tapering, attached to the sides of it, and in each tube a larva, which, holding on by the anal prolegs, gave to its body a vertical serpentine motion, which made a current of water to flow through the tube. About once a minute it would contract itself, and then, pressing its head against the sides of the tube, collect with its conspicuous mandibles and devour such of those solid particles which had been drawn in by the current and were entangled in the tube, as suited its taste, and occasionally it would turn about and collect at the narrow end, but it always brought its head back to its old position at the larger end before it commenced pumping again. This larva does not come to the surface of the water to breathe, neither does the pupa, which also lives in a tube, and makes the water flow through it by the undulations of its body, just as the larva did, in order, I presume, to bring the air contained in the water into contact with the hairy fringes which border the segments of its abdomen ; certainly not to obtain food, for it does not eat. It has no hairs on the thorax like those represented in the figures of Chiro- nonius fliimosus. I was amused to see that each of my pupae kept its old head under its body, where it rocked to and fro with each wave of its abdomen ; there it was, with its dark jaws, its little eyes, and neat brown collar, and with the same comical, Japanese kind of expres- sion that it had when it was in its old place. When the pupae were about three days old they left their tubes, and after swimming, or rather throwing them- selves about with the most violent contortions for three hours or so, and now frequently coming to the surface, they remained there for a little while, and then the transformation took place. Although I watched my captives pretty closely, many of them changed their state unobserved. Once, when I went away for two minutes only, I found on my return the gnat creeping up the side of the vessel. At last I was fortunate enough to see one come out. It did not free itself in a careful, delibe- rate manner, like the common gnat, which, sailing about in its pupa skin, gently extracts its anterior legs, and, after carefully placing these on the water, proceeds to liberate the next pair, and so on ; but it came forth as though it were being steadily squeezed out, and then immediately flew away, the whole operation occupying just fifteen seconds ! I had previously placed a pupa on the stage of my microscope in order to examine it ; but before I had time to do so, the skin parted, the head appeared, and in about eighteen seconds the whole imago was out. My specimens lived a month as larvae, and from three to four days as pupa;. I am sorry that I have been unable to obtain the name of this insect. I think it is allied, if it does not belong, to the genus Chironomus. The imago is 1^ line long. The two anterior legs are distant from the others, and the rost. rum is short. The female is yellow, and has short antennae, of few joints, the terminal one being the largest ; the male is darker, with the abdomen greenish-brown ; the tibiae and tarsi dusky ; the antennae plumose, of many moniliform joints, with the terminal one cylin- drical, and very long. — Edzvard Cox, Brixton. A TOUR IN SEARCH OF FOSSILS. THE experiences of a collector during a run from Edinburgh to Bristol, and a stay of twelve days at the latter place, may, perhaps, be interesting to the readers of Science-Gossip. The first halting-place was Settle, in Yorkshire, classic ground to the brachiopodist, mainly through the labours of Mr. John Burrow. Mr. Burrow was the son of a doctor of independent means, and spent his life in working out the palaeontology of his dis- trict. He was known to all of the inhabitants of the town to whom I spoke, and an intelligent shoemaker, who occasionally accompanied him on his rounds, gave me what information he could, as to his habits and excursions. He described him as "rather dull- looking " as a lad, and as one from whose after-life no great things were to be expected. From what I had known of his work I was curious to find out as much as I could about him, wondering, as so much has recently been said of men in a humble grade of life who have worked in pretty much the same groove, what could be said of a man who was above them in the social scale ; but I had not time to pursue such inquiries very far ; the sum of what I learnt was that he was a man who spent nearly the whole of his time on the moors, that he worked hard, and, uniting quickness of eye and intelligence with zeal, was able to accomplish what he did. Mr. Davidson's mono- graph of the British Carboniferous Brachiopoda bears frequent testimony to his merits. His collection went to the Woodwardian Museum, at Cambridge, fetch- ing a sum which, as he himself said, paid him scarcely at the rate of a halfpenny per hour for the time during which he had been making it. He died comparatively young. A collector's first experience of Settle would pro- bably be disappointing. It requires, above all things, time to know what a locality can produce, and a very considerable amount of patience and muscular activity to successfully work a locality that is known. Al- most in accordance with my expectation, I found Settle exceedingly barren during the single day I was able to spend there. A few common Brachiopods only rewarded my labour, but these, with the beauti- ful mineralisation characteristic of the limestone of the district, were thought worthy of preservation. A HA RD WICKE'S S CIENCE- G 0 SSIP. 271 few good Productus striaius occasionally occurred on window-sills and over porches. Many good things were got when the new line between Settle and Carlisle was being constructed. The quarries scarcely repay a visit to the chance collector. The richer beds are not always worked, and the quarrymen do not seem to have much to offer. Fish remains, I was told, occur in the Dent marbles, a few miles further up the line, but I am not aware of any verte- brate remains having been found in the carboniferous limestones of the immediate vicinity. The next halting-place was Dudley. The fossils, with which every paleontologist is familiar, are got at two places, the Wren's Nest and the Castle ; neither place is far from the town. I spent a day at the Wren's Nest, but hadn't time to visit the Castle. The beds I saw were tilted at a sharp angle, and good weathered fossils are to be found in the debris at their base. The beds themselves are so crowded with organic remains that they offer the finest study possible of an important part of the world's ancient life. These remains, however, are not easy to transfer to the collecting-bag, and the geologist must betake himself to the various places where the softer shales have become disintegrated, and have yielded up a part of their fossil contents. His first feeling will be one of disappointment, even here, where he is aware of an enormous profusion of organisms, and, indeed, if his object be merely to secure fine cabinet- specimens, his disappointment will be keen ; good trilobites and shells are not easily to be picked up, but if his object be of a more purely scientific kind, especially if he has learnt to feel much interest in the lower forms of animal life, he will not be dissatisfied with his gatherings. Novelties are, of course, not easy to find in a locality so long and often wrought as Dudley ; but it appeared to me very probable, from the almost inexhaustible abundance of material to work upon, that something might even yet be obtained, especially in groups that have not yet received their full share of attention, as corals, poly- zoa, sponges, &c. A week's good work would probably yield some interesting results. Atrypa reticularis seems to be the commonest fossil, and I mention it because I found the mineralisation ex- ceedingly favourable to the preservation of the spires. Out of a handful thrown into acid, a large percentage yielded the desired result. If one is at all anxious to know whence all the good museum specimens have come, and makes inquiry, he finds that there is a band of men who make a business of collecting. They get good fossils still, and an old man, in particular, had quite recently made several valuable finds. It is hopeless to attempt to compete with such men, and the visitor who has thought of getting them for himself had better give up the idea, and make for the nearest dealer's shop. There are two semi-professional dealers at Dudley, a druggist, Mr. Hollier, and a herbalist, Mr. Fletcher. I only saw a few of Mr. Hollier's things, but Mr. Fletcher obligingly showed me what he had. He has some good trilobites, but seemed unwilling to part with them. I was told that there was a museum at the Mechanics' Institute, but it was too late to see it. The museum which was before it in date has become defunct, and its collection is scattered. The neighbourhood of Bristol is perhaps as good a one for the paleontologist as any in the kingdom. Several horizons are well represented, and many of the best localities are easily accessible. I began work upon the inferior Oolite at Dundry. To give an idea of the richness of this locality, it may be mentioned that the quarry is exceedingly small, being used simply to obtain road-metal from, but that out of it have come an enormous number of genera and species, of which specimens occur in almost every museum and private cabinet in the country. At the Bristol Museum I counted from this locality 226 species distributed amongst 67 genera, but a complete list of what it has yielded would give a much higher figure. This great abundance of organic remains was a treat to one coming from the comparatively sterile horizons of Mid-Lothian. The chief excavation is near the top and on the north side of Dundry-hill, close to the main road leading from Bristol to Dundry, and is two or three miles distant from the city. A little way down on the south side is another and smaller quarry, which I found rich in corals and large Rhynchoncllas, It is of no use visiting the north quarry unless the workmen have been getting out some road-material ; this they get in rather large fragments, and for a small fee will allow the visitor to set to work upon them, and gather for himself what he can. In breaking up the blocks for their own purposes, they put aside the better specimens themselves, and generally have some for sale. The sellers of minerals on the Clifton Downs usually have a few Dundry fossils on their stalls, in addition to a great many very beautiful polished carboniferous corals and sponges, which can be bought at a very cheap rate. The well-known Rhcetic beds of Aust gave me occupation for a day. The fish remains occur on the surface of the Avicida contorta shales, and in bluish- grey seams which run irregularly through a coarse, pebbly-looking kind of rock. The beds are exhibited well up on the face of the cliffs, and the collector is dependent upon the crumbling away of the marl beneath for material to work upon. After a high tide with a strong westerly wind is the best time to visit the locality. A good deal of material was strewn about at the time when I was there, and a star-fish and Ilybodus remains rewarded my search. To extract good reptilian or fish remains the collector must prepare himself for hard work, as the matrix is very intractable, but with patience, and a heavy hammer and sharp chisel, he will assuredly meet with good success. Ichthyologists have lamented that 272 HARD WICKE'S SCIENCE- G OSSIP. so few Ceratodus teeth have been obtained in recent years. A partial explanation may be found in the fact of the hard work required to extract them. That the locality is rich in such remains is well known. The Higgins Collection recently acquired by the Bristol Museum is a striking proof of it. Many of the Ceratodus teeth of this collection are figured in Mr. Miall's monograph just published. If the visitor at Aust wishes to spare himself trouble, he may sometimes find a few things at one of the cottages in the village. There does not seem to be any well-sustained effort in any quarter at present at extracting the riches of the locality. At first view the limestones at Clifton seem barren, but a little careful reseaixh soon opens up a better prospect. Mr. Emery, a gatekeeper at the Suspen- sion Bridge, obligingly rendered me very material assistance. His knowledge of the carboniferous lime- stone of his district is both accurate and extensive, and he has made vthe aluable discoveiy of seams of Rhcetic in the limestone of the Durdham Downs. The upper shales I found exceedingly fossiliferous, and at no greater distance than the new buildings on the Leigh side there were beds exposed in which fine Brachio- pods were abundant. The "Black-rock" quarry, which has yielded such good fish remains, is unfortu- nately closed. Wishing to examine the carboniferous limestone of the Mendip Hills in Somerset, I found myself, almost by accident, in Burrington Combe, a glen produced apparently by the same causes as those which have hollowed out the gorge of the Cheddar Cliffs, with which it is in line, but on the opposite slope of the hills. This combe is of considerable interest both to the physical geologist and palaeonto- logist. The section exposed is one of very considerable thickness, and the fossil-bearing beds are accessible. Brachiopods, lamellibranchs, gasteropods, and corals were abundant. Good Psammodus teeth would reward the diligent collector. A fine one fell to my share. High up on the right-hand side, almost half- way up the combe, I came upon some shales from which the earth had fallen, and was delighted at the display of organic remains. The clip of the beds was about the same as that of Dudley, which I had just seen, and the profusion of extinct life nearly as great. The fossils I observed were chiefly referable to the genera Chonetes and Spirifei'a, S. atspidata being quite common. I am not aware that this locality has been much wrought, but it would unquestionably repay any good work spent upon it. Two days upon the inferior Oolite of Bradford, Wilts, and Minchinhampton, Gloucestershire, con- cluded the field work of the excursion, and the short time that remained was spent at the Bristol Museum. There is evidence of good work in this museum, especially on the part of the geologists and malaco- logists. It possesses several very valuable type speci- mens, and is, on the whole, well arranged for the display of its collections. It has no funds for pur- chases, and when the Higgins Collection was in the market had to resort to the expedient of a public subscription to secure it, but in spite of this draw- back it has done exceedingly well, and has received many valuable donations. The late Mr. Sanders took great interest in it, Mr. Etheridge, palaeon- tologist to the English Geological Survey, and many others, have contributed largely to increase the number and value of its specimens, and the zeal of the gentle- man, recently its curator, and now of the Wood- wardian Museum at Cambridge, has done much to bring it to its present satisfactory state. It occupies beautiful premises on a good site. The upper hall is devoted to Mineralogy, Palaeontology, and recent shells. The fossils are arranged in table-cases, in stratigraphical order, and the light is all that could be wished. A striking feature is the Ichthyosaurus, completely extracted from the matrix, and suspended from an iron support. This way of mounting, as novel as instructive, arose out of a mistake. The wrong faces of the blocks were, in some instances, developed, rendering it necessary for the remains to be entirely extracted, if the specimen was not to be spoiled. The lower hall is devoted to Ethnography and recent Zoology. I was sorry and rather surprised to hear that more use was not made of this part of the Natural History collections. The attendance of students is almost nil. No attempt seems to have been yet made by those who have the direction of what biological teaching exists at Bristol, to take advantage of the facilities which the museum offers. Edinburgh. T. Stock. AN AUTUMN RAMBLE IN EPPING FOREST. By Dr. De Crespigny. Part II. * I 'HE genus Coprinus has membranous gills, which become black (with the black spores)* when fully developed, and finally deliquescent. Coprinus contains we gathered in a pasturage below the warren. It is a singular-looking fungus, edible, and remarkable for its scaly cuticle : the scales are seen in the figure as tufted and revolute at their ends. In the same pas- ture grew another and pretty little species called C. plicatilis, with plicato-sulcate pileus and small umbone. As it is a good example of this kind of pileus, a figure in illustration is subjoined. A good specimen of the genus Cortinarius we gathered in Inoloma (C.)violaceus, said by Mr. Worthington Smith to be one of the very best for esculent purposes. Cortinarius has been subdivided into six sections ; they have all persistent membranous gills and a floccose trama ; a veil of arachnoid threads and rust- * Specimens of the black spore section of Agaricns may be found on dung-hills everywhere in A. (Copriiiarius or Pan- ixolui) separatus. HARDWICKE'S SCIENCE -GO SSI P. 273 coloured spores. When torn or otherwise dissipated, the remains of the veil may be usually discerned as stains upon the bulbous stipe ; but the violet tinge upon the stipe is not constant, nor is the pileus violet except when quite young. It is by no means common. Most of the smaller specimens of fungi, which grew upon leaves or on the ground, were damaged. We made out, however, that the subgenus Myxanim is well represented. Fig. 226.— Pileus of Cop- rinus plicatilis. •Fig. 225. — -Vertical section of Coprinus comatus, showing the narrow pileus and scaly cuticle, crowded gills and cavity of the stem filled with filmy reticular tissue, sup- ported by a central columella . Fig. 227. — Stem of Afaras- tnius arcades covered with a woven villous coat (mag. ) ^.•-.ovr;. '0.0. Fig. 228. — Vesicular trama of Lactarius and Russula. Fig. 229. — Vertical section of Hygrophorus psittacinus showing the hollow splitting stipe, &c. Hygrophorus is characterized by its waxy hyme- nium, hymenophorum continuous with the stem and descending unchanged into the sharp-edged gills. Specimens of H. psittacinus we obtained from a wet pasturage : the colour of pileus, gills, and stem is of a crocus yellow, tinged here and there, on the gills especially, with grass-green in the young plants, the stipes hollow and splitting ; the hymenium, too, has ■3. tendency to separate from the trama when dry. Lactarius is well represented. L. subdulcis is ex- tremely plentiful. The gills and flesh are milky in this genus, the trama vesiculose, hymenophorum confluent with the stem ; two or three of this species which are of a rufous or cinnamon-brown colour are much alike ; the milk of L. seriffutis, however, is watery, and that of L. fuliginosus turns yellowish. A specimen of Z. blcnnius, pileus greenish-grey, gills white, was also gathered. 22p. — Vertical section of a Lactarius. Fig. 231.— Vertical section of Russula nigricatts. Fig. 232. — Hymenophyllum of a Russula confluent with the vesicular trama {R. hcteropliylla). Equally abundant with Lactarius were species ot Russula. The structural characteristics of this genus are precisely the same as those of the preceding, except that the flesh is not milky. Very common was Russula heterophylla, pileus of all shades of dull yellow, greenish, purplish, and dull red ; frequent 274 HARD Wl CKE 'S S CIE NCE - G 0 SSI P. R. fragilis, red when young, but white and polished afterwards, viscid. Another common species is Rus- stila nigricans, dark greyish green or dingy olive, becoming charred as well as the stem, when old ; umbilicate, as are the Russulas generally, and with the margins of the elevated borders inflected ; the gills are white with a black border. Cantharellits cibarius is sometimes plentiful in Epping Forest. It may be known by its golden- yellow colour, infundibuliform pileus, and gills re- duced to mere folds or swollen veins. We could obtain no specimen to illustrate this curious structure of hymenium. The genus has a floccose trama ; gills in other species thick, swollen, and obtuse. Marasmins is another genus in which the trama is floccose; the hymenophorum confluent with the stem, although of different structure; not confined to the lamellae, but spread over all the interstices. M. Oreades is said to be good eating, grows on dry pastures, generally in rings (the circle is rarely com- plete) of from six to eight feet broad. The whole plant is of a dirty cream-colour, pileus more or less slightly stained with brown, and seldom more than an inch or two in diameter. We found them on a com- mon near Woodford. Intermediate between the gillbearing Hymenomy- cetes, and those with a porous hymenium, are the two curious genera, Zeuzilesand D&dalea, both of common occurrence in forests, and of which the former is retained in the first-mentioned family, and Dadalea in the latter ; but the fact is, when fully developed, it is very difficult, out of a number of specimens, to decide which is which. Nature is very unaccommo- dating, and refuses to be tied hard and fast by laws and rules, as laid down in the books which treat of her phenomena. The lamellae of Dcedalea are indeed sometimes so much broken up, in old plants, as to resemble the toothed processes characteristic of the hymenium of a Hydmim. FOSSIL FOLYZOA. The Genus Fenestella: its History, Develop- ment, and Range in Space and Time. By George Robert Vine. History of the Genus. IN these papers I do not wish to discuss questions that are purely geological. I wish to deal only with one type of a class, out of many of the classes which fall naturally into the divisional roll of the palaeon- tologist. But while keeping this before me as a guide, I cannot ignore the fact that in speaking of formations it will be necessary to either enlarge or restrict my meaning when I use certain terms. In speaking of the Silurian System, this was not so much needed, but in speaking of the Fenestella of the Devonian system it will be necessaiy to limit my meaning, as my remarks on the species will apply more particularly to the typical Devonian rocks of Devon and Cornwall. In 1 84 1, Mr. John Phillips published his elaborate work on the Geology of Cornwall, Devon, and West Somersetshire. In this work there are numerous plates of Fossils, with letterpress descriptions of the same. Figures and descriptions are given of these species of Fenestella, for in this work Phillips discards the word Retepora, and uses Miller's more expressive term. The specific character of F. laxa is similar to- that given in his Geology of Yorkshire. ' ' The net- work is extremely large and irregular, the obverse bearing two rows of tubular pores, reverse granulously striated," and the localities are S. Petherwin and Croyde. Of the F. antiqua Goldfuss, Phillips gives several very good figures, and his description is little more precise. He says of one of his figures (35«), F. antiqua var. that the specimen was sub-conical, and that the celluliferous face was external. This is clearly a mistake, for even from the figure it seems to give an idea that the polyzoon was parasitic on some object. The corallum was irregular, with thick, slightly flexuous interstices, very obtusely carinated ; the dissepiments were thick and short, and placed at regular intervals ; the fenestrules were oblong, and the pores were small, with slight prominent margins about their own diameter apart, and usually about three to the fenestrule. The species and varieties are common in the Devonian Limestone of Plymouth. This description applies to Goldfuss' figure of Retepora antiqua, and not to Lonsdale's F. antiqua of the Silurian System. F. anthritica is another of the Devonian species, but it is not very well described. The figures are very good, but I cannot make much out of them. The Hemitrypa oculata of South Devon seems to me to be clearly a Fenestella. It is a thin laminar expansion in a cup-formed mass. The external surface is wholly covered with numerous round pores or cells radiating from a centre, and associated in double rows, which near the centre undergo frequent divisions, so as to form two such rows. The figures seem to bear, in some respect, the character of Hemitrypa Hibernica, and also to the Fenestella {?) Sykesii of De Koninck. One of Phillips's drawings, fig. 38 E., is decidedly characteristic of the Fenestella type, and one would have no hesitation in placing it with that group. I have been rather more particular with Phillips's Devonian Fenestella than I should have been had the work been less scarce. As it is, I have done my best to furnish the student with his specific characters in this history of the Genus. Several American Devonian species of Fenestella have been figured and described by H. A. Nicholson, Professor of Biology, in his work on ' ' Ontario," and in the Geological Magazine for 1874-5. Some of these new forms are very characteristic, and although they bear HA RD WICKE'S SCIENCE- G OSSIP. 275 different specific names, there is a tendency of some to ally with Silurian, while others approach Carboni- ferous species in character. But every fragment given by Nicholson is well described — a property that adds much to the value of his specimens. One of these, Fenestella magnified, bears a close resemblance in its non-poriferous aspect to F. laxa of Phillips. To this particular point Nicholson himself draws the attention of the reader. I do not, however, set a very high value upon Phillips' F. laxa from the Carboniferous or Devonian series. It is very loosely described, and very loosely figured, both in his Palceozoic Fossils, and in his Geology of Yorkshire. Nicholson's species, then, has this advantage over the older description ; it is well figured and well described. The poriferous aspect is unknown. He says : " I have only seen a single specimen of F. magnifiea, and that only exhibits the reverse side of the ccenecium, but the general character of the frond so distinctive, that I have no hesitation in founding a distinct species for its recep- tion. It is from the Carboniferous Limestone of Port Colborne, Canada."* F. marginalis (Nich.) is a very peculiar species. It is described from a mere fragment, but the charac- ter is distinct. The polyzoary was fan-shaped, but of unknown dimensions.! In his critical remarks, Nicholson says : "The specimen does not enable me to affirm with certainty that the two marginal rows of cells were separated by a medium keel, but it appears highly probable that this was the case. In the genus, or sub-genus, Fenestrellina (D'Orbigny), the mesial keel, separating the two rows of large lateral cells, carries a central row of minute cells. In F. marginalis, however, the space between the lateral rows of cells carries a series of minute crowded cells, which are arranged in two, or sometimes in three, alternating rows ; so that the central keel, if present, must have exhibited the openings of two or three rows of cells. This character, so far as I am aware, has not hitherto been noticed in any species of Fenestella, except F. rigidnla (M'Coy), and it may, perhaps, afford a ground of sub-generic dis- tinction. "J Fenestella filiformis (Nicholson) is the most beautiful and delicate Fenestella that I have ever seen. It is finer in the branches than the finest and most delicate of any of my Carboniferous species. The specimens are only in fragments, and the celluli- ferous aspect is unknown. Of the branches, Nicholson says, fifteen or sixteen of these occupy the space of a quarter of an inch. Another species from the Hamilton group of the Devonians of America is figured and described by Nicholson, which he dedicates to his friend David- son. It is the Fenestella Davidsoni. From the peculiar growth of the frond, it approaches nearest in character to the F. Milkri, of Lonsdale, but both the branches, fenestrules, and number and character of cells are altogether different from that species. " In the general aspect of the celluliferous surface and the sinuous course of the branches, the species makes a close approach to some of the species of the genus Retepora ; but the presence of non-poriferous dissepi- ments, and the existence of a keel separating two rows of cells, seem to justify its reference to the genus Fenestella."* In his "Ontario," Nicholson gives another species, F. nervata, but having no access to his work, I am unable to describe it. There is a striking peculiarity, however, about the Silurian and the Devonian Fenestella when com- pared with the Carboniferous species, which marks them as distinct. But there are no arbitrary lines about any of the Palaeozoic group, except in the F. rigidnla and F. marginalis. If the poriferous character of the keel, or the place the keel should occupy, has not been exaggerated, this is peculiar ; but, as I have been myself very much deceived in the apparently poriferous keel,f I merely record my doubt, with all due respect to the describers of these species. Some specimens, too, show this poriferous keel ozitwardly, but when reduced to sections, the real cells are contiguous, and all the keel that exists is the thin, wavy line which separates the two rows of cells, and even this apparent line is nothing more than the impingement of the walls of the separate cells one upon the other. The Fenestella group seems to have reached its climax in the Carboniferous seas. No fewer than twenty-two species have been described by Phillips, M'Coy, and others, to which Mr. Robert Etheridge, jun., has added two others from the Scottish series of Carboniferous shales. Many of these species are fictitious ; the characters of some of them have been described from fragments of other species. As, how- ever, my friend G. W. Shrubsole, F.G.S., is engaged on a complete revision of the Carboniferous Fenestella, I will just here indicate the specific character of a few only of the list. F. membranace, Phillips, is a well- marked and characteristic species. It is elongate and conical, bearing— generally — three small pores on each side of the fenestrule ; it has, moreover, long, solid non -poriferous roots. F. antiqua, Lonsdale, Retepora antiqua, Goldfuss, and F. snb-antiqzia, D'Orb., are included with this species as synonyms. F. flabellata, Phillips, vary very much in different * Geo. Mag., May, 1874, p. 197. t As the descriptions of these species are easily accessible to the geological student, I do no more than draw his attention to a few of the minute details of Nicholson— reference to the larger description will well repay him for the trouble. % Prof. H. H. Nicholson. New Devonian Fossils, Gso. Mag., May, 1874. * Geo. Mag., 1875. t " I believe that all that has been written about poriferous keels on the Fenestella is wrong, and that these so-called pores are only worn-down rows of tubercules. Like you, I have sectioned specimens showing these worn tubercules, and find they lead to nothing, and have no connection with the cells. — Mr. John Young, F.G.S. 276 HARDWICKE'S SCIENCE-GOSSIP. localities. It is fan-shape in character; but the branches of specimens from Richmond, in Yorkshire, differ materially from those found in North Wales. It often presents two different characters in well- developed fronds— so much so that if a good frond was broken and distributed to several Paleontologists, asking them to identify the species, two sets of opinions would be the result. F. frutex, M 'Coy, seems to be a good species, so also are the F. polyporata, and the F. wididata, of the same author; but F. nodulosa, and F. temdfila, are somewhat doubtful. The F. formosa, of M'Coy, is also doubtful in the character of the poriferous dissepiment; but the F. plebeia, F. quadradecemalis, and the F. carinata, of the same author, have pretty constant characters. The F. crassa, and F. ejuncida, are doubtful. The F. hemispherica is a beautiful specimen, but may it not be the young form of some of the larger specimens described as species ? Besides these forms there are several others in my list, but after having examined many of the fine species gathered by Mr. Shrubsole from the Halkyn Mountains of North Wales, I am rather in favour of a reduction than of an extension of species. My belief is that many of the so-called species are the result of indiscriminate grouping. The fault of the confusion, is not so much pressed home upon the describer as upon the collector. It may be that no Fenestella bands have been so well preserved as are those of the Halkyn Mountain group ; and it may be that collectors have been more careful for general, than for particular fossils. Be that as it may, the group well deserves revision, and having a sufficient knowledge of the material at his disposal, I believe the work will be well and honestly done by Mr. Shrubsole. The Fenestella of the Permian rocks are few in number— both as regards species and individuals. The form generally met with in collections is F. reticularis, of Schlol. In Morris' Catalogue this is given as F. retiformis, with the synonyms Kerato- phytcs, Gorgonia infundibuliformis, Goldfuss, and Rctcporajlustracea, Phillips, but as my own specimens show only the non-poriferous side, I am unable to give any minute details respecting the species. The non-poriferous aspect bears a close resemblance to some of the Carboniferous, and also of the Silurian Fenestella ; dependence, however, upon this is unsafe as a palseontological guide. In space this genus had a remarkably wide range ; it being tolerably abundant in the Paleozoic series of America. In this country the foregoing remarks will justify my assertion that it was also abundant with us. De Koninck and others have shown how preva- lent certain species are in the Bohemian and Belgian series, some of the species belonging to the latter extending as far east as India. In time the genus ranged throughout the whole of the Paleozoic rocks, becoming extinct, so far as is yet known, at the close of the Permian era. MICROSCOPY, Varnish for Glycerine Mounts.— Some time since I asked in Science-Gossip for some varnish which would not be affected by glycerine jelly. No satisfactory answer being given, I had to fall back on my own experiments, and am glad to say I have at last found a varnish, which, worked with others, answers in the best possible manner. The varnish I allude to is gold size, and I find the following method of applying it answer best. Having mounted your slide, and allowed time for the glycerine to set, go carefully round the thin glass circle with a warm pen- knife, then with a fine camel's-hair brush run a ring of gold size round, by means of the turn-table ; allow this to dry, then apply another layer, and when this is dry a third ; lastly, run a ring of white lead varnish over the gold size, and finish with a ring of green varnish in the centre of the white if your object be a vegetable preparation, or red, if it be animal. I have mounted some dozens of slides in this way, and in no case have I so far found the varnish to fail. Let me recommend readers of Science- Gossip, who like myself have had a difficulty in finding a stable varnish, to give this method a fair trial. Dr. Car- penter in his work, "The Microscope," it will be re- membered, speaks highly of gold size as a varnish. I consider, however, that without some varnish over it, gold size does not make a very neat or a very elegant appearance.— Charles F. W. T. Williams, the Vicarage, Tinslade, Bucks. New Diatoms. — Melosira Barren (Grev.) var. Hispida Castracane. This variety is distinguished from the type form by the presence of short teeth or spines scattered over the surface of the valves, but especially on the lower convexity of the frustule. Canal de Trau, Dalmatia, Cyclophora, n.g. Castracana, frustules tabular, rectangular, sometimes in series, sometimes free, sometimes connected by a gelatinous isthmus forming a zigzag chain in f.v. linear-oblong, sometimes slightly inflated, valves unequal, one of them with a central loculus, living in sea-water. Cyclophora tenuis, Castracane ; frustules in f.v. oblong, rectangular, slightly inflated, valves linear, inflated, rounded at the ends, dissimilar, one of which has a central ring or loculus. Length of valve, 441" 5, 55/*. 2> breadth 4/1 8, ii/t 3. On rocks at Ancona ; Naples, in aquarium. (Extracted from Brebissonia, a new monthly serialde voted to Algeology and Micrographic Botany, edited byM. G. Huberson. .). Diatoms in Coal.— It is, perhaps, in the recol- lection of our readers, that about two years ago,. Count Castracane announced the discovery of marine and fresh-water diatoms in coal ashes. Professor W. C. Williamson, at the Dublin meeting of the British Association, doubted the accuracy of this, and stated that Professor Roscoe had permitted one of HARDWICKE'S SCIENCE-GOSSIP. 277 his ablest assistants to make analyses of various kinds of coal, in accordance with Count Castracane's direc- tions, and these ashes he (Professor Williamson) had carefully examined, but had been unable to detect any traces of diatomacese. I can confirm this, having myself made many observations on the ashes of various kinds of coal and coal shales ; many of the latter were rich in the remains of equisetums and ferns, and ought to have contained diatoms, if any existed at that period. So acute an observer as Count Castracane could not be mistaken as to the presence of diatoms in the ashes he examined, and we must, therefore, come to the conclusion that their presence was accidental. I have examined very many samples of chalk, not only from this country, but also from various other localities, but have never seen any valves of diatomacece. I should be glad to learn if any other observer has been more successful. — F. Kit ton, Norwich. A Collecting Stick. — The following is a de- scription of a collecting stick I have made, and found very useful in collecting diatoms from the bottom of streams, as it does not disturb the mud and sand, like the ordinary collecting bottle. A is a bamboo-cane, B 3© Fig. 233. — Collecting Stick. with a piece of Indian-rubber tubing running down the centre, such as is used for feeding-bottles ; B is a glass-tube fastened to rubber-tube ; C is an Indian- rubber ball, by squeezing which you force air out of the glass-tube, and then by placing it near the object you wish to get, and letting the ball expand, the object is drawn up into the tube. On squeezing the ball it is then forced out into the bottle. The stick can be also used as an ordinary walking stick. — Albert Smith. ZOOLOGY. How to Preserve Skins, &c. — I can give your correspondent J. Y. a really good non-poisonous receipt. It has stood the test of fifteen years, and can be well relied on, viz. : — 1. Whiting or chalk, ii lb. ; 2. Soft-soap, lib.; 3. Chloride of lime, 2oz. Boil Nos. 1 and 2 with about a pint of water, and add No. 3 while hot. Before adiling the lime see that it is finely powdered, or else it will not work smoothly. Another good one is as follows : — Burnt alum, 1 lb. ; saltpetre, 5 lb. ; pound and thoroughly mix. This is especially for animals, as when well rubbed in it will fix the fur and hair admirably, and penetrate the thickest skin.- — Edward E. Evans. Mimicry among Vertebrata. — Mr. Wallace, in his work on "Natural Selection," by way of en- forcing his arguments, quotes instances of mimicry among snakes only. In the beginning of 1877, when I was stationed at Shwaegyeng, in British Burmah, a wild dog was brought to me, and on the first glance I thought it was a young deer ! The resemblance was striking in many ways ; colour, form, and mo- tions of small deer were imitated in a wonderfully deceptive manner. The head especially was remark- able for its resemblance to the head of a doe, the ears were long and very mobile, and could be thrown back on to the neck in a way habitual to the female of the common hog deer. These wild dogs are rare, but they are to be found on the plains of Burmah, and, as may be readily inferred, they prey upon the small deer which abound in the grassy plains of that country. I kept the animal for several days ; it was a young one, and was very fierce. I sent it down to Rangoon as an exhibit for the Phayre Museum and Menagerie there, but the creature died on the way, and the person in charge unfortunately threw away the carcase, instead of preserving it. I hope shortly to be able to get another of these animals, and shall do my best to send it alive to England. — Arthur Hough. Pronunciation of Scientific Names. — Mr. Browne (see July No.) is no doubt right in his suggestion that the Latin qu was originally pro- nounced like k. In the memoir prefixed to the " De Natitris Rerum " of Alex. Necham (born 1 157) the following anecdote is related. "Necham abandoned his :;chool at Dunstable, and became desirous of entering one of the monasteries, and he first turned his eyes to the great Benedictine monastery in his native town of St. Alban's. He accordingly addressed an application to the Abbot in these terms, Si vis veniam sin autem, &c, to which the Abbot, who appears to have been somewhat of a wag, replied, Si bonus es venias, si nequam nequaquam " (If you are good, come ; if bad, by no means come). Nequam of course being pronounced necham, this pun on his name offended him, and he did not join the St. Alban's monastery. — F. Kit ton. The Alternate Generation of theEchino- dermata.— Professor Haeckel has recently sent the following to the San Francisco Microscopical Society : — " The palingenetic development of the Echinoder- mata, ordinarily known as metamorphosis, which leads to important inferences as to their race history, is to be considered as a genuine alternation of generations, and especially for this reason, that the two succeeding generations are destroyed in order to make possible the change into one another by a single transformation. The first generation, the 'Nurse,' or so-called larva, is a solitary, bilateral, limbless individual or 'person,' which consists of only one piece or antimera, and possesses the greatest resemblance to true worm larvce. On the contrary, the second generation, the perfected echinoderm, has the ground-plan of a symmetrical, five-sided pyramid, 278 HARD WICKE'S S CI EN CE- G O SSI P. and consists of five antimera or parts ; it forms a true stock or cormus, which is composed of five articu- lated, worm-like, bilateral persons. When this cormus originates within the nurse by budding, a multiplication of antimera occurs, whereby from one antimera five arise. This origin can be interpreted only as a non-sexual reproduction, not as a mere transformation. The true nature of these genuine alternate generations is clearly shown by those sea- stars, in which the body remains free from the five (or more) independent arms, and the central disk, which barely unites the latter in the middle, exists almost as an independent body. These are Ophidi- aster, ChtTtaster, Brisinga, &c. Particularly inte- resting in this relation are most species of the genus OpJiidiaster, or Linckia, from which several specimens are exhibited (0. diplax, O. ornithopus, O. multi- formis, and 0. Ehrenbergii). Here the single arm, which possesses the morphological value of an articulate worm, is freely detached from the disk, and every arm forms by regeneration both the central disk and the four remaining arms. With numerous specimens of the four species of Ophidiaster selected, all the various stages of this reproduction process were shown, and he discussed the significance which these so-called comet forms of sea-stars possess for the morphological interpretation of the same. There- fore we should take as the oldest stem form of the Echinodermata the Asteroidea, from which as di- verging branches have developed Ophipridea, Crinoi- dea, and Echiuoidea. In the last, the centralization of the whole cormus is carried farthest, and from them the Holothuroidea have arisen. Thus the Holo- thuroidea stand most distant from the original form of the Echinodermata — the Asteroidea." BOTANY, Cotoneaster vulgaris.— This plant still exists in small quantities on the Orme's Head. I saw it there in July last. — James Brittot. Polypogon Littoralis.— This rare plant, which does not appear to have been recorded for Glouces- tershire, occurred this year in considerable quantity, on marshy ground, near the north bank of the Avon river at Bristol. On inquiry it seems that the soil here has been taken from the river bank and bed at places much nearer Clifton, when the river was widened and the new dock-gates constructed, and brought to this marsh to fill hollows from which the clay had been dug for manufacturing purposes. Its appearance is of interest, as furnishing another instance of the occurrence of new plants when soil that has been long buried is brought to the surface. Lizard Orchis [Orchis kircina).—! had sent to me last June a very fine specimen of the Lizard Orchis {Orchis hircind). It was found in a chalk- pit at Greenhithe. As I see from Hooker and Arnott's "British Flora," published 1850, that the plant " is very rare (perhaps now extinct)," it maybe interesting to your readers to know it has been found so recently. I enclose one dried blossom that you may be sure of its authenticity. The plant was nearly 3 ft. high, the spike of blossom over 21 in. Per- haps if it has been found by any other of your readers they will let you know, as it must be a plea- sure to know so handsome a plant is not yet extinct. GEOLOGY, A New Genus of Fossil Corals. — Mr. James Thomson, F.G.S., who is well and widely known as an enthusiastic student of carboniferous corals, has just published a monogram on a new genus, which he has named Albertia. He also gives us, in the same elaborate paper, a short sketch by which it has been attempted to delineate the internal structure of fossil carboniferous corals during the last twenty years. Most palaeontologists are aware that Mr. Thomson has succeeded in causing thin sections of coral to photograph themselves on sensitised copper-plates, so that every line is truthfully portrayed. Mr. Thomson, after a long account of failures that would have damped the ardour of a less enthusiastic geolo- gist, relates his triumph as follows : — "It would be tedious to enumerate the various other unsuccessful attempts I made in the way of obtaining casts fitted for the accurate reproduction of structural details ; but I may say, generally, that these attempts were veiy numerous, that they occupied a large portion of my leisure time for several years, and that they in- volved a very considerable amount of expense. Out of these laborious attempts, however, there finally emerged the process which I now employ, and for which I claim the merit of being applicable to the accurate delineation of the minutest details of coral- line structure, and of being comparatively inexpen- sive. This process I have now used for two years for the production of lithographic plates, and quite re- cently I have succeeded in modifying it so as to pro- duce electrotypes for use in the ordinary printing- press. Of the first form of this process, I may say that it consists in taking an impression of the struc- ture upon a sensitised copper-plate, that this impres- sion is then engraved upon the plate, and that a transfer is thence taken and put upon a lithographic stone. Of the second form of it, I may say that an impression is taken upon a plate of sensitised copper, that the plate is next engraved and etched very slowly, but somewhat more deeply than in the first case, that a cast in wax is taken from the plate, and that from this again is produced an electrotype in the ordinary way. The fact that the process which I have now so far described is applicable not merely to the delineation of structures presented in my own HARD WICKES SCIENCE- G OSS IF. 279 favourite pursuits, but also to the delineation of the minute structures which present themselves to the anatomist, the physiologist, the pathologist, the botanist, and many others, is, I conceive, one of its chief merits." Liverpool Geological Society. — The Pro- ceedings for 1876-77 of this well-known and vigorous society contain the annual address of the President, Mr. T. M. Reade, F.G.S., and papers on local geology as follows: "Glacial Striatums at Little Crosby," by T. M. Reade ; "The Conditions existing during the Glacial Period, with an Account of the Glacial Deposits in the Valley between Tranmere and Oxton," by Dr. Ricketts, F.G.S. ; "The Glacial Striae of the County around Liverpool," by G. H. Morton, F.G.S. (Hon. Sec); " The Carboniferous Limestone and Millstone Grit of Llangollen," by G. H. Morton (continued) ; and other papers of general geological interest. NOTES AND QUERIES. Animal Ventriloquism. — Two very interesting notices of Brazilian fauna occur in Mr. Rigg-Wither's account of his work and wanderings in the forests and prairies of Parana, the one of a frog, and the other of a bird. The author does not give a description of either sufficient for determining their species, but he refers to both of them as possessing in high develop- ment the special power of ventriloquism. This is not only of much interest in itself, but as it is the first instance I have met with of any animal lower than man being gifted with this abnormal faculty, I venture to ask room for the following condensed abstracts from the "Pioneering in South Brazil," with a few observations which the narration suggests. At page 145 of vol. 1, Mr. Rigg- Wither, whilst camping out near Porta Grossa, notes that ' ' a cry, like the moaning of a sick child, came wailing on the ear, apparently from only a few yards off ; the tone, how- ever, was too musical for a child's cry. The vocalist was a frog, and soon another from a more distant spot took up the strain, and the two sang together, now in solos, now in chorus. " The author " took a torch and proceded to the spot from whence the sound was (or seemed to be) proceeding." He " stooped to search in the grass, when the music seemed to float away to another place some yards distant, and on following it, the sound still moved, but nowhere could he dis- cover whence it came. The fact is, this frog is recog- nised to be a ventriloquist of no common order " — a property the author reasonably concludes to be "given him as a protection against the numerous cranes and other frog-enemies that would otherwise be guided by the sound, and soon render the species extinct." Again, in vol. 2, page 193, a bird, notable for its shrieking voice, and known as the Bell-bird, is thus referred to : " It is seldom seen in its wild state, being, like the musical frog, a ventriloquist of very high powers, and as a sun-loving bird, a frequenter of the highest tree-tops, where its snow-white plumage and transparent wings render it almost invisible, even when in motion. In size it is but slightly bigger than a starling, with a voice powerful as a peacock's." From a description of this bird's performances in a cage, at Antonia, its notes were heard in every quarter of the town as well as beyond the outskirts, and seemed at times " to come from the mountains at the back of the town fully a quarter of a mile distant from where the bird was actually encaged." Calling to mind the peculiar cry of the Corn-crake (Crex pratensis), and one's similar inability to trace the varying points from which the sounds appear to proceed, I beg to add a parallel extract from an account of the habits of this eccentric vocalist of our own meadows. ' ' The crake, crake, crake of the landrail may be heard during May and June, resounding on every side, now close at hand, as if the bird were not a yard distant, now far off; while the voices of others in different parts are unremittingly exerted. The note is the call of the male to his mate. So shy and cunning is the bird that it is seldom to be seen, and unless by means of a dog accustomed to such work, it is almost impracti- cable to force it to take wing. It seems to elude pursuit as if by magic, and is here and there threading its way through the long grass before its pursuer can imagine it has even left the spot from which its call had first resounded. Its swiftness and dexterity are indeed almost incredible." (Knight's Museum of Animated Nature.) It will be observed that no attempt is here made to account for the sudden changes of the cries heard, now near, and now far off. It is taken for granted that the crake, by some sort of superhuman speed of foot, can elude its pursuer as. " if by magic," before it can be imagined to have left the place from which its call first resounded. The performances of a human ventriloquist afford the aptest illustration, if not a credible and rational theory, for all the conditions of the hypothesis accepted by Mr. Rigg- Wither being fulfilled by the incidents he records, and which are remarkably enforced by the man- oeuvres described in the last extract, of " the sly and cunning " Corn-crake. I am desirous to learn if any naturalist has noticed similar phenomena in any other bird or beast, and if so, whether the solution above indicated has been referred to, if not recognised. This marvellous faculty may possibly be a vestige of a once more extended power conferred on the animal creation, as a means of defence, by deluding and so evading their enemies. Can any of your read- ers assist me in these inquiries ? — A. H.B. Preserving Animals. — I think Mr. Beaumont will find the most complete information in Waterton's "Wanderings in South America," published by B. Fellowes, Ludgate-slreet, 1852. Further useful par- ticulars are given in his first series of Essays on Natural History, Longman, Brown, & Co., Paternoster-row, price 8/-. An abridged account appears in a small work on Taxidermy, by J. Gardner, 426, Oxford- street, price 1/6. Another account is shown in "Taxidermy," by M. Brown, Bazaar-office. If any further information is required respecting the details of the system I shall be glad to quote them from any of the works named. — J. C. Carritt, King's Lynn. Preserving Animals. — In answer to W. L. Beaumont, I beg to furnish an outline of Waterton's method of preserving animals : — "Wash the animal well in soap and water with a hard brush. Then skin the animal, taking out every bone to the last joint of the toe next the claw, and proceed to pare down from within the nose, the lips, and the soles of the feet, and sew up the mouth from the inside, beginning exactly in the front, and continuing the operation each way to the end of the gape. Now immerse the skin in a solution of corrosive sublimate in alcohol ; take it out and fill it quite full of chaff, and proceed to support it on the table by introducing into the abdomen a machine made by joining two pieces of wood in the shape of a carpenter's gimlet, and of 280 HARD JVI CKE 'S S CI EN CE - G OS SIP. size corresponding to the size of the animal. Let the shank of this machine hang down outside the skin, just as though it were a fifth leg in the centre of the body, and let it pass through a hole in the table, and then be fastened at sufficient height by a couple of wedges. Now touch the nose, lips, and orbits of the skin with a mixture of one part of salad oil and three parts spirits of turpentine, and repeat this touching every day till the finish. Then with a penknife cut small holes on the top of the head, behind the root of each ear, under the jaws, others on the back, and one under each foot. Now working through these holes with a piece of iron, from the size of a large darning needle to that of a ramrod, and shaped at one end like a carpenter's pricker, push out every part of the skin which ought to be pushed out, and reduce with the end of the finger any part that may be too pro- minent consistently with the expression and form which the animal exhibited during life. The lips must be reformed by means of two irons, one held in either hand, and working in opposite directions outside and inside. In due course of time, as the skin stiffens, the artist will see (as the sculptor does) the features gradually appear ; and at last the skin will retain the slightest impression communicated to it by the touch of the working iron. A slit must be made in the crown of the head, or under the jaws, to allow of the artificial eyes to be fixed with a little putty or wax. Two or three weeks' practice is required in order to become an adept at this mode of pre- serving animals ; but of course there must also exist a considerable native talent and taste for sculpture. The foregoing account is condensed (perhaps too much so) from an article on Museums in the first edition (1838) of Waterton's "Essays on Natural History." It will be observed that this process is simply one of modelling : the softened skins of animals being operated upon instead of the clay of the modeller or sculptor. Various other methods of preserving animals (especially birds) have been described in the "Philosophical Transactions" for 1770, in "The Naturalist's and Traveller's Com- panion," in the "Natural History of Guiana," in the Amiens Acad., vol. ii., in the "Boy's Own Maga- zine" for 1859, in the " Boy's Journal " for March, "The Art of Taxidermy," published by 1863, F. Warne cS: Co.— P. Q. Keegan, LL.D. Bark Bread. — In a note to page 528 of the Flora Vectensis is the following : " Panis hie albus est due/is et gratissimus, prsesertim recens. Usus hujus fa nit primarius et receptissimus apud," &c. , &c. Linnaeus says the bread is sweet and grateful, but he does not say that it is composed solely of the roots of the Calla ; but he does say, " hasc farina miscetur cum farina" (he does not tell us in what proportion) " Cerealium vel Pini, et exinde conficitur panis secun- dum artem." The above quotation must have been printed incorrectly, it should be, "Panis hie est albus, et dulcis, et gratissimus " (this bread is white, sweet, and very palatable). " Usus hujus panis primaris, et receptissimus apud," &c. (This is the bread chiefly used by Norwegians and Swedes, and they like it very much. ) But the flour from the roots of Calla is first mixed with rye or barley meal, and often with powdered pine bark ; and of these the bread is made in the ordinary manner. We may add, the mixed bark of the pine is, even now, thus used. — J. F. Robinson. Wild Animals and Man. — An interesting lec- ture was recently delivered at the Society of Arts, by Sir J. Taylor, on the destruction of life by wild animals in India. An extract or two may, perhaps, be of interest. In 1876, 18,273 persons were killed by wild animals ; out of these, 15,946 lost their lives by snakes, 917 by tigers, 887 by wolves ; the remain- der being by leopards, bears, hyamas, &c. In the same year 54,430 cattle were destroyed. The num- ber of wild animals killed during that time were 234,830, out of which snakes were 212,371. There are several ways of compassing the tiger's death. They are snared in pitfalls and traps, shot by spring guns, poisoned by strychnine, and killed by sports- men. The natives of India, especially the Hindoos, hold the tiger, as they do the cobra, in superstitious reverence; many would not kill him even if they could, for they fear that he would haunt or do them mischief after death. In one instance in the Central Provinces a single tigress caused the desertion of thirteen villages, and 250 square miles of country were thrown out of cultivation. In 1869 one tigress killed 127 people and stopped a public road for many weeks, until finally killed. The shark is a fierce and bold creature ; he dashes in amongst the crowds bathing at the ghats, and though he seldom, if ever, under these circumstances, succeeds in carrying off his prey, yet he inflicts a dangerous, often a mortal, wound. These accidents appear to have become more common of late years, since the practice of throwing bodies into the river has been discontinued. — H. Budge. "Sugaring." — In reply to your correspondent, " W. W. Walter," I used to do a little in the gentle art of sugaring, and as I was pretty successful, a few hints of mine may be of use. The best mixture to my knowledge is Jamaica foots sugar gently boiled in stout or porter, care being taken not to bum it. As most of the sugar known as "moist sugar" is actually refined sugar, and not the raw material at all, it is not good for the purpose. When made, a little rum may be added just before using. Several sugges- tions have been offered at times as to the advantage of adding oil of anise seed, and other oils of a similar nature, as powerful moth attractors, but I do not think they are so potent as supposed, a great deal depending on the weather chosen for a sugaring expedition, which should be a moonless night with a light south or south-west wind, a moonlight night or east or north wind being quite enough to ensure an empty bag. Although the autumn for numerous reasons is the best time for sugaring, still, there are other times of the year when lepidoptera are captured at natural or artificial sugar. In the spring the catkins of die willow or sallow are most killing traps for the Tamiocampa?, and a sheet spread under a willow in bloom will be almost sure to catch such specimens as Stabilis, Munda, Cruda, Gothica, &c., on the branches being shaken. Reverting again to sugaring, the mixture should be laid on with a brush on the lee-side of trees, about 5 feet from the ground, and I have found that exposed trees are the best, I presume from the fact of the wind carrying the scent better ; where there are no trees I have succeeded with pieces of rag or fragments of bark or board, either fastened on a bush, or in want of that, a post, gate, or rock. — Edward Lovett, Croydon. A Strange Place for Marsh Plants. — For a considerable time operations have been in progress for the construction of a new wet dock at Leith, and for this purpose upwards of eighty acres of a low sand-flat, known as Leith Sands, has been reclaimed from the sea. The greater part of this being within tidemark, was consequently covered and left dry alternately with every tide, and no vegetation, ter- restrial or marine, was apparent. But since the reclamation wall was finished, and the salt water HARD WICKE'S S CIENCE- GOSSIP. 281 excluded, alone; a muddy place on the sands a number of marsh plants have sprung up, and some of the species are growing in great abundance, many of them being at this date (July 1st) in full flower. I have observed the following : — Ranunculus sceleratus, Nasturtium officinale, Stellaria uliginosa, Epilobium hirsutum, Callitrichc verna, Veronica Anagaffis, V. Beccabunga, Alisma Plant ago, J uncus glaucus, y. lampocarpus, y. bufonius, Scirpus setaceiis, Alopccurus gcniculatus, and Calabrosa aquatica. The first and last-named species are both common on the coast between Leith and Portobello, but the others appear to be new. Now the question naturally occurs, how do they happen to be springing up there ? I am not aware of any satisfactory explana- tion that can be given, and supposition will throw no light on the subject. But as all who take an interest in the matter will have their own opinions, the fol- lowing is given as a possible, if not a very feasible, one. We may suppose that a stream once entered the frith at this place, that aquatic and marsh plants grew in and around its margin, that its mouth was gradually encroached upon and covered by the sea, and the marsh plants disappeared. But their seeds remained in the sand in a state of dormant vitality, and withstood the action of salt-water and other adverse influences, perhaps for many years, till now, surrounded by conditions favourable to their develop- ment, they are again springing up into life and luxuriance. — D. Douglas, Leith. A Day at Cliveden. — By the kind permission of his Grace the Duke of Westminster, I was en- abled, on Saturday, July 6th last, to take my class at Westminster Hospital for a field-excursion through the above grounds. The day was, in every sense, favourable for such an excursion, and the result was well worth the journey to Taplow. We were for- tunate enough in the space of three hours to collect some 119 different species, representing thirty-nine natural orders. The walk from Taplow station to Cliveden is one of the best to be found round London for its abundance of flowers of all kinds, and the gravel-pits en route are a storehouse of treasures to the enthusiastic botanist, who will find himself amply rewarded for any trouble taken by studies of many of our most beautiful wild-flowers, from Verbascum Thapsus, which grows in rare luxuriance, down to the humble Fedia olitoria. The Hypericacese are well represented, no fewer than eight species being seen, and Boraginaceae, Dipsacea:, Solanacece (including Atropa belladonna) and Onagracere form prominent features in the neighbourhood. A longer search would doubtless have only considerably raised the number of orders represented, seeing that our in- vestigations, hurried as they were, produced the above number. — H. IV. S. Worsley-Benison. Curious Places for Nests. — I dare say your readers will be able to recall curious instances of the choice birds have made in selecting a place for a nest, but perhaps none more eccentric than the follow- ing. A short time back a tomtit took possession of a beehive, deserted by its proper inmates, and, having cleared out the comb, filled the circumference of the hive with wool and moss, in the centre of which it built its nest and reared its young. And a friend now sends me another curious instance. In his garden were four inverted 12-inch pots. The titmouse must have had curious stairs down to his nest, which was budt on the ground in the last pot. — George Dowker. Hawks in Ireland. — Can you give me any infor- mation about the various species of hawks to be found in this locality, as we have observed four distinct varieties, and have captured and trained two? The one we have at present is ruddy-brown on back and head, with black bars, tail also barred, eye black, full, and encircled with yellow band of skin, beak with tooth or notch in upper mandible, emarginated wing, with notch or sinuosity situated near the end of the quills, breast fawn-colour, with black markings perpendicularly ; he has a moustache of black hairs on the cheeks, head round and full. The first hawk we had was quite different : he had a flattened head, with projecting ledge over the eye, which gave him quite a sinister expression ; back very dark brown, breast white, with horizontal black bars, very long toes, and curved claws. Both these birds were taken from the nest and tamed. As I see natural monstrosities some- times mentioned in your journal, I mention a deformed chicken which was hatched here and preserved by me. It has four legs, three of the legs being at one side, and of these three legs two have the elbow-joints reversed (and also the thigh-joint) ; there is but one thigh-joint for the two superfluous legs, the third leg at that side has a thigh-joint in the natural position ; all the legs are perfect as to feet, claws, &c. This bird chipped the shell, but died in coming out. It is a Bramah. Izaak Walton. — Perhaps some of the readers of Science-Gossip may be interested to hear that a marble bust has just been placed in St. Mary's Church, Stafford, of Izaak Walton. The ceremony of unveiling was performed by the Earl of Lichfield. The bust has inscribed upon it, "Izaak Walton, Piscator; born in the parish of Stafford, August 9th, 1593 ; baptized in St. Mary's Church, September 2 1st, 1593 ; buried in Winchester Cathedral, Decem- ber 19th, 1683. Erected by public subscription, 1878." The bust was decorated by a Stafford lady with various water and other plants, such as the gentle old fisherman loved so well, and which still grow luxuriantly among the bright streams, so plenti- ful about his native town, where the author of the "Complete Angler" first imbibed his love for angling, and still greater love of nature. The poor of Stafford receive still an annual benefit from the friend whose bust they can now look at, and which will, in a measure, enable them to realize their kind benefactor. The "Complete Angler" has had its adverse critics, but Charles Lamb, in a letter to Coleridge, the poet, dated October, 1796, speaks of it in these words : "It would sweeten a man's temper at any time to read it ; it would Christianize every discordant angry passion : pray make yourself master of it." The " Complete Angler " has gone through well-nigh sixty editions in this country alone. — E. Edwards. Spider Instincts. — Seeing a paragraph in your September number illustrating the possession of an acute instinct in spiders encourages me to trouble you with one or two observations of a like nature that have come across myattention in watching spiders' motions. I was watching recently the completion of a web, and observing the apparent self-satisfaction with which the spider at the finish settled down, after some tightening and fortifying processes, in the centre. It seemed to me that the spider in question settled down as if in the full happiness of a domestic establishment — say, house, pictures, and so on, and the only remaining need would be the daily bread that he would require. Reflecting thus, I wondered how far he would resent any infringement or slight disturbance upon his "castle;" to ascertain which, I put a small curled-up leaf through, or partly so, one of the interstices at the lower part of the web. I w.is 282 HARD WICKE 'S SCIENCE - G OSS I P. astonished at the promptitude of Mr. Spider's observa- tion : he was at once militant, and sallied forth, and gradually one by one appeared to unhook the web wherever it had hold of the upper part of the leaf, so that being thus loosed the leaf rolled over until again suspended at a lower level (i.e. just the breadth of the curl of the leaf) by the film which had fastened to the lower part originally, and which, of course, now became the top part. Quicker than the time taken to read this, the spider seemed in like manner to unfasten the newly-placed upper part, and of course the leaf rolled over again, and this method of proceeding was continued until at last the leaf was rolled beyond the limits of the web. Thus freed from such an intrusion, the spider seemed to squat down again comfortably enough in the centre. Surely, thought I, another attempt will not be cruel, and so I placed an angular bit of a leaf (about half an inch square) in the upper part of the web. Immediately my friend started forthagain. Takingstock of theinvading leaf, he seemed to decide that a new method of attack was necessary in this case, and so he speedily unbuckled each entangled corner of the leaf, and grasping the latter with the full expanse of all his limbs, he seemed to take it out of the mesh, and by a herculean feat to expel and throw it away outwardly from all contiguity with the web, so that it at once fell to the ground. After this, he returned to the domestic hearth in the centre. I was singularly struck by the apparent method pursued in face of these difficulties, and did not again impose upon his good nature for any further edification. On another occasion, a very large spider had spun a web across the frontage of some Virginian creeper leaves. I had no experimental intention in disturbing the "animal," and so, I forget whether I destroyed the web or merely commenced by teasing the spider. Which- ever it was I however remember that he presently beat a quick retreat beneath some of the curved leaves, and from one place of refuge to another I continued to fidget him. At last — perhaps he was exhausted — he seemed to say, " I shall go no further," and the little twig (about a foot long) in my hand with which I had teased him, failed to dislodge him from his chosen refuge. He kicked out in reprisal to my annoying him, and seemed to wince, so I imagined, with great indignation. While this was going on, I happened to pull my twig of branch nearer to myself, and observed that the spider had attached a line to the end of it, and that it was con- tinuous and unbroken. It immediately struck me to test the length to which, in the spider's wrath, I might extend the film. Steadily and carefully I carried my twig across a distance of about 9 or 10 paces of ground (about 22 feet) and fixed the free end of the twig branch into the trunk of an adjacent tree. I had therefore stretched a fine filamentous thread across a distance I never expected, and although it was so exceedingly fine and attenuated that it was only by difficulty that I could trace its course, yet it was apparently as continuous and intact as a telegraph wire. To prove this, I picked up some blades of grass, and by bending them into an angle I was enabled to hang them ztpon the spider line. At varying distances I placed a blade here and then a blade there — only, by-the-by, in single blades, for I was afraid of overtaxing the " line." If I remember aright, I had hung up five of these blades ; but the weight of the sixth proved to lie the straw which broke the camel's back — my line broke. This seemed an extraordinary case, for the spider seemed to throw out an unlimited length of " wire,'' and seeing I was enabled to put thereon five or six blades of grass — each blade being probably of greater weight than the whole length of film — he might perhaps have allowed me to "runout" 30 feet or more of his gossamer thread had I carried my twig that length in the first place. My last observation of spider instinct has been in the construction of the web itself, but I fear to trespass further on your space just now, however interesting and wonderful these phenomena of nature and life may be. — J. F. S. Engineering Skill of a Spider.— The follow- ing specimen of the engineering skill possessed by a spider may possibly interest your readers. It was discovered in an office in this town (Omagh), and was kindly shown to me by a gentleman connected with the concern. A spider, desirous of making a web, being either hard-up or taking a thoughtful view of matters, appropriated a string for an outside border, and that in a very curious manner. The string was a stout one, and hung perpendicularly from a beam. Moreover, it had a copper-wire hook attached to its end. The spider must have crept clown the string, and fixed the end of one of its own lines to the eye of the copper hook, then ascended the string, carrying its own line with it, walked along the beam as far as nine inches, and then fixed the other end of its line. It must then have pulled bit by bit at the line, till it had drawn up the copper hook, and made the string describe a curve; and considering the size of the string and the size of the spider, it must have been a rather arduous task, requiring plenty of patience and perseverance. It then, by a few more lines cleverly placed, managed to relieve the strain on the main line, and complete the foundation. The web was never completed, but was left in its present unfinished condition. — Isaac Crawford. Cat and Rabbit. — When living in Essex a few years back I made the acquaintance of a splendid cat, of a glossy black from the tips of his whiskers to the end of his tail. In temper and disposition he differed from most pussies, for he was a morose old fellow, and seemed to have very little affection for anything but cat's-meat. The cry of "meat " seemed to electrify him, but after his " haporth " had been duly disposed of he would retire within himself, and take no further heed of temporal things. A more unsociable old Turk could not well be imagined. And yet — would you believe it?— this reserved old character had a soul (or its equivalent) tucked away somewhere under that black exterior, and this is what brought it out. Another member was added to the family in the shape of a glossy black and white rabbit, which in a short time was leading a very ' ' free and easy" life on the premises. Well, between this pretty creature and the morose old "blacky" an acquaintance sprang up which by degrees ripened into a downright fancy for each other's society. Then they took to romping and playing together, and after a time the two oddly-matched animals might be seen lying on the hearthrug together, pussy's sable paws lovingly clasped round bunny's snowy neck. — W. H. Warner. A Mysterious Gift. — I beg to draw P. A. Allan's attention to the following paragraph, relating to the wonderful power of sight possessed by M. Fillifay. It is taken from awork entitled "Mauritius or the Isle of France," by the Rev. F. P. Flemyng, M.A., F.R.G.S. "It was from this station (viz. the long Mountain) that the notable M. Fillifay, some years ago, used to astonish the colonists, and indeed the world, by the singular power of sight which he possessed. His time for observation was usually at dawn, and by directing his vision to the clear unclou- ded sky (and not to the horizon), he could behold, HARDWICKE'S SCIENCE-GOSSIP. 283 inverted (with the naked eye), any object within the singular circuit of his sight. The accuracy of his observations was verified when the British squadron was assembling at Rodrigues (an island 300 miles eastward of Mauritius), in the year 18 10, for the attack upon the island. M. Fillifay stated so to the French governor, and was, it is said, imprisoned for raising false alarms. At another time he discerned what he described as two ships joined together, or, if there were such a thing, a four-masted vessel ; within a few days a four-masted American schooner arrived in Port Louis harbour. He also described a large Indiaman dismasted when nearly 400 miles from the island, and afterwards announced that he could see that she was erecting jury-masts, and was steering for that port. This proved to be the case. He was a pen- sionnaire on the Treasury, and for years used to render * his report ' at the Port-captain's office, which was always written down by the officer as he laconically announced it: A ship, N.E. 200 miles, nearly becalmed ; a schooner, W., will make the land to- morrow ; two brigs standing to the southward, &c. It is a remarkable fact that, although this old man visited Bourbon, Europe, and several other places, he was unable to exercise this singular faculty of vision anywhere but at Mauritius. This, most probably, arose from the singular rarity of the atmosphere on this island, which is certainly most remarkable. He is since dead. He professed, at one period of his life, to be able to teach this mode of vision, and even obtained a fair and ambitious pupil, but he found that a Power beyond his could alone impart this wonderful gift." — J. Henry Maughan. Have Palms Tap-roots ? — As a rule the radicle of monocotyledonous seeds is little, if at all, developed ; so that tap-roots are generally said not to occur in the , class. A true tap-root must be the direct prolongation of the radicle. Palms seem, however, to be some- what exceptional, to judge from the most readily accessible account of their germination, viz., that in Mr. W. B. Hemsley's papers on Garden Botany in the Garden, vol. xiii. (187S), p. 288 (March 30), from which I take the substance of what follows. The radicle or primary root is very often vigorous in seedlings, but it is stated that it is soon replaced by succeeding roots which appear above its apex, i.e. are lateral adventitious roots like those of bulbs. Whether this is invariably the case is uncertain ; but the genus Borassus is a good example of this replacement. The stout tap-root of the young seedling in this genus is soon surrounded by adventitious roots, to which it surrenders its work, itself dying off. In another genus, Sabal, however, the primary root seems to be a lateral outgrowth of the embryo, the radicle apparently not being at all developed. On the whole, the preacher who said that palnW>ft?j had not tap- roots was decidedly nearer the truth of the two. — G. S. Bonlger. Hackney Microscopical and Natural His- tory Society (194, Mare-street). — The members of this society made another excursion on Saturday afternoon, the 19th October, under the presidency of one of the honorary members, Worthington Smith, Esq., F.L.S., F.R.M.S. The place of assignation was Chingford, from thence through the old forest to High Beech, returning by way of Lough ton. The special objects of research were "fungi," which are found in this part of the forest in quantity and variety sufficient to repay the labours of the numerous com- pany assembled, though comprising entomologists, microscopists, and students devoted to other branches of natural history. The weather was fine, perhaps rather too dry for the specific object in view ; the forest was clothed in the varied tints of its autumnal foliage. The way being led by such an authority on " fungi " as the president for the occasion, gave to the excursion an interest and charm peculiarly enjoy- able ; and the instruction thus gained by an afternoon spent in the investigation of this page of nature's history will long be remembered by those who were so fortunate as to be present. No fewer than thirty- six species of fungi were collected and identified. What was the "Fagus" of the Latins? — Was the Rev. J. Mitford (formerly editor of the Gentleman 's Magazine) right when he asserted that "fagus" must mean the sweet chestnut? because Caesar says the Britons had not the fagus. Landing in Kent or Sussex, Cassar must have seen the beeches, which love a chalky subsoil. The "Spanish c/iestmd," as it is often called, is no doubt an importation from abroad. — W. H. Freeman, Reepham, Norwich. Lapwing and Hawk. — Some five years ago Mr. G. R. Bull, of Stafford (who related to me the incident), was driving out one morning, a few miles from Stafford, with, I believe, Dr. Day, when they suddenly heard a confused rustling noise overhead, and something then plumped down into the ditch by the roadside. On alighting they found a hawk and lapwing in deadly embrace, the hawk's talons em- bedded in the lapwing's breast, the bird just expiring ; the hawk already dead, from the beak of the lapwing being fixed in the eye and brain of his enemy. As the latter had made his fatal pounce, the intended victim had made one supreme effort, and by a lucky peck in the one vulnerable spot, avenged his own death.— Alf. Freer. Ornithological Instruments. — Where can scissors for cutting the bones of the embryo in birds' eggs, described in Prof. Newton's " Suggestions for forming Collections of Birds' Eggs," be procured? also German-silver blowpipes ? — Beta. Arge Galatea. — Could any of your correspon- dents inform me as to whether Arge Galatea has ever been noticed near Bedford before ? I took a rather fine specimen at the close of August this year. — W. E. Fairbridge, Bedford. " Bob-OWLERS." — It may interest those of your readers who care to note the local names of plants, insects, &c, to know that in Staffordshire the thick- bodied moths are called " Bob-owlers." — K. D., Almondsbury. NOTICES TO CORRESPONDENTS, To Correspondents and Exchangers. — As we now- publish Science-Gossip a week earlier than heretofore, we cannot possibly insert in the following number any communi- cations which reach us later than the 9th of the previous month. W. T. Horn.— Thanks for the specimen of Helichrysiott,. which, unfortunately, was jumbled into an indistinguishable mass when it reached us. Get Burbidge's " Cool Orchids and How to Grow Them," with plates, published by Hardwicke & Bogue, 192, Piccadilly, price 6s. It is the best work of the kind we know. A Young Beginner.— Mr. Collins has recently issued what he calls a " Histological Microscope," at ^5. 10s., which would answer all your requirements. It is a marvel of me- chanical skill, and can be easily stowed away. It is sufficient for all the requirements of a natural history student. W. H. Jones.- The spikes of Plantago are the largest we have seen. 2S4 HARDWICKE' S SCIENCE-GOSSIP. E. E. Evans. — For details concerning the construction of an Egg Cabinet see " Notes on Collecting and Preserving Natural History Objects," price 3s. 6d., published by Hardwicke & Bogue. K. D. (Almondsbury). — Orbitoliiia. is a genus of fora- 7/iiui/crir. G. O. Howell. — The calyx segment of the Bud of Fuchsia you enclosed has reverted to the condition of a true leaf. H. F. Rasell.— Get "Half-Hours with the Microscope," bv Dr. Lankester, with chapter on the " Polarisation of Light," by F. Kitton, published at 4s. by Hardwicke & Bogue, 192, Piccadilly, London. A. Smith. — Get Cooke's " Microscopic Fungi," (illustrated) price 6s. London : Hardwicke & Bogue, 192, Piccadilly. K. D. — Bentham's " Handbook of the British Flora," pub- lished by L Reeve & Co. ; and the Second Edition of " Hooker's Student's Flora of Great Britain," just out, pub- lished by Macmillan. R. Rattray. — Many thanks for your excellently mounted slide of Licmophora flabellata. M. Shaw. — Accept our thanks for seedlings of the Date Palm. W. H. Shrubsole. — "Banded-flints" were originally formed by the filling-up of cavities in nodules, layer by layer. Subsequently the nodules have been broken up, and the harder banded parts liberated, and rolled into the shapes and appear- ance in which you see them. (2). The boring appears to have been made by some other mollusc than Teredo. (3). No doubt the concretionary nodules, and the appearances you describe, are due to the soft, decomposing, organic matter of the animals whose hard parts usually form the nuclei, having caused chemical segregation. To Querists. — We are obliged to postpone the publication of several answers until our next, on account of want of space. n exchange for D. Russell, 48, EXCHANGES. In exchange for a few Microscopical Slides, a Flying Fish 8J4 inches in length, from Pacific Ocean. — W. E. Barker, Jesus College, Cambridge. In exchange, a Centipede (in spirits) from Honolulu. — W. E. Barker, Jesus College, Cambridge, for Microscopical Slides. Wanted, Perfect Specimens of sEcidiacei, unmounted. Several species of Puccinia, Uromyces, &c. offered. — E. W. Halway, Decora, Iowa, U.S.A. A naturalist having a large collection of British and Foreign Birds' Skins at his disposal would be glad to hear from any gentleman requiring the same, either in lots or singly, in exchange for other Skins.— W. Barrett Roue, 165, White Ladies'-road, Bristol. Several splendid Slides of Algae for well-mounted Parasites, also British Butterflies, and some Birds' Eggs, including gold crest, black-cap, great tit, redstart, and several others, about twenty-five in all. Desiderata, Birds' Skins, particularly hawk, owl, or woodpecker tribe, or swallows and British Lepidoptera, not in collection. — W. Barrett Roue, 165, White Ladies'-road, Bristol. Wanted, Devonian Rocks and Fossils, specimens from other formations. — Thomas Essex-street, Strand, W.C. Wanted, P. machaou, G. rhamni, C. Hyale, C. edusa, A. cratccgi, A. Galathea, in exchange for British Birds' Eggs, blown with one hole. — T. V. Devey, Woodland, Cockfield, Darlington. Cornish Rocks and Minerals, Diallage, Serpentine, Steatite, Mica Schist, Luxubganite, Schorlite, Schorl, &c. , in exchange for Scientific Books, Fossils, Rock specimens, and Minerals. — J. S. Ilsley, 6, Trevethen-terrace, Falmouth, Cornwall. Erytknen latifolia (vera) and 460^ for the following, ex- clusively, io\b, 153 var. ?, 158^, 202c, 215, 461^, 536, 544 to 546, 691^, 708, 721, 86ii, 874/', 934, 970/;, 1212, 1219c, 1223, 1228, 1238, 1262, 1266, 1267, 1282c, 1298, 1453, 1457, 1476?', 1554, 1624. — J. Harbord Lewis, 145, Windsor-street, Liverpool. i, 000 polished specimens of Madrepores, Minerals, Fossils, British Shells, in exchange for foreign Shells, good Ferns from coal measures, or good Silurian Fossils. Will also send good polish slabs of Madrepore for slabs of the Bristol or Clifton Landscape Stone, or a box of rough Madrepores for a box of good and well-marked rough Landscape Stone. — A. J. R. Sclater, Naturalist, 9, Bank-street, Teignmouth, Devonshire. For a pair of Fedonia Conspicuata (frosted yellow), send a good slide of clean Diatoms or Anatomic human, for half an ounce of foreign sand, containing foraminifera, specular talc, &c. — Send slides as above. — E. Eaton, 48, Currier's-lane, Ips- wich. I am collecting various Specimens of Pond Life, and shall be glad to exchange for unmounted or mounted microscopic objects or accessories. Wanted particularly, unmounted anatomical sections, either stained or injected. — C. W. Lawton, 5, Montpelier Vale, Blackheath, S.E. Wanted, Diatoms and Desmids, good slides of material, in exchange for other slides or rare British Plants, L. C. Nos. 104, 146, 184, 176, 253, 368, 527, 556, 611, 704, 767, 769, 831, 858> 9J3> 929, 975. 999> 1001, 1130, 1218, 1293, 1519, and 1 many other lists exchanged. — J. Tempere, 12, Cecil-street. Moss-side, Manchester. Licmophora JJabcllata, growing on algaa, stained and I mounted in balsam, for good samples of Marine Diatomaceous Earths. — R. Rattray, 30, Balfour-street, Dundee. Specimens of the new mineral Hullite, described at last meeting of British Association, also Trachyte, Chalcedony, &c, from the basalt of county Antrim, in exchange for Lias, or Cretaceous Fossils, or recent British Shells. — William Gault, 68, Christopher-street, Belfast. Oi-'fered Nos. hi, 140, 155^, 169, 184, 203, 315, 326, 354, 355. 363>. 587, 622, 812, 813, 1128, 1264, 1281, 1290, 1297, 1584, 1586, Trifolium stellatum, and many others, for rare or local British plants. — J. H. A. Jenner, 4, East-street, Lewes. Volume of " Palaeontographical Society " for 1878. What offers? Wanted, sixth edition, "Chaffers on China." — James Griffin, 3, South Bar, Banbury. Wanted, to purchase Smith's "British Diatomacea;" and Pritchard's " Infusoria." A good price will be given. — Apply to J. F., n, Truro Vean-terrace, Truro. Wanted, -j8a.b.c, 106, 108, 119, 175, 202, 367^, 467, 477, 637, 7OI> 737. 747'''. 8l9.. 828> 839, 945, 1020, 1082, 1095/', 1255, 1484, 1507, 163 1, &c, in exchange for rare plants.— G. C. Druce, Northampton. Wanted, all kinds of unmounted Microscopical Material, in exchange for other specimens. — Alpha, 16, Brunswick-street, Poplar, E. For exchange, a quantity of well-mounted histological specimens (duplicates). — C. James, 19, Vincent-terrace, Isling- ton, N. For injected Human Kidney, stained Human Intestine, Gomphoncma gemiiiatum ', wing of Brazilian Butterfly, scale of Pollack, and Japanese grass (polariscope). Send any well- mounted Balsam Slide to J. A. Kay, Mansion-house, Brompton, Chatham. Offered:— A small collection of American Birds' Skins. Wanted : — Fossil fish remains or offers. — T. Stock, 16, Colville- place, Edinburgh. American, Bermudas, European, British Eggs, side blown ; many rarities, Eleonora falcon, Rufus swallow, Wall creeper, Phaeton flavirostus (tropic bird\ Rock thrush, Turdus cyaneus (Eastern thrush), Alpine chough, &c, in exchange for others. — Sissons, Shanon, Sheffield. Rare British Vertigos. — Correct and well authenticated specimens of Vertigos, Autivertigo pusilla, miiiutissima, Aipcstris, substriata, and augustior, offered in exchange for really good and choice Foreign Shells, land preferred to marine ; also offered, Lim. involuta, Succinea oblonga, Unio margariti- Jera, valvata, cristata, Baliea fragilis, Clausilia rugosa, var., Schlecktii. Wanted, Pupa ringens, Achatina acicula, Conoviilus bidentatus, var., alius, Tcstacella haliotoidea, Lim. Burnetii, and Acme lineata. — W. Sutton, Upper Claremont, Newcastle-on-Tyne. Wanted, Microscopic Fungi, mounted ; will exchange Crystals or other objects for the same. — A. Smith, Essex-road, London. Wanted, Microscopic Fungi, unmounted ; other Fungi will be sent in exchange. — A. Smith, Essex-road, London. Shells, Carycliiiim minimum, &c, for other good land, fresh water, or marine Shells, or offers. — Mrs. Skilton, London- road, Brentford, Middlesex. BOOKS, &c, RECEIVED. "The Geology of Ireland." By G. H. Kinahan. London C. Kegan Paul. " The Beginning." By H. P. Malet. London : Triibner & Co. "Abstracts of the Proceedings of the Liverpool Geo- logical Society" (from the commencement in 1859). "American Naturalist." "American Journal of Microscopy." Potter's "American Monthly." " Boston Journal of Chemistry." " Botanische Zeitung." " Chambers's Journal." " Ben Bratley's Journal." " Land and Water." &c. &c. &c. Communications received up to 8th ult. from: — E. W. H. — F. W. B.— C. C— J. M. S.— W. H. J.— C. P.— F. K.— W. L. B.— W. C. T.— W. E. F.— E. E. E.— W. L. S.— K. A. D.-W. J. H.— J. O. B.— C. W.— C. F.— W. S. W.— W. E. G.— S. M.-C. W. C— A. J. R. S.— W. L. — J. W. S.— J. M. W.-A. H.— H. J.— W. H. F.— T. M. R._A. F.— T. V. D.— W. B. R.— R. A. R.— H. B.— J. H. L— M. H. R.— J. D. R. — T. E. L.— M. K.— A. T.— W. G. —A. H. H.— J. H. A. J.— J. D.— C. W. L.— A. W.— H. M. -R. R.-M. V.— W. W.— J. T.-T. W.— F. J. F — W. M. B.— H. P. M.— T. L.— C. T. B.— J. N. D.— A. W.— J. G.— J. B. -W. J. M.— M. S.— C. A. J.— R. H. M.— J. M. M.— J. F. -A. S.— J. D. O.-G. C. D.— W. S.— M. E. M. H.— W. B.— J. W. S.— T. S.— J. A. K.-&C &c. HARD WICKE 'S SCIENCE- G OSS I P. 285 INDEX TO VOL. XIV, -*o*- Acarus, A ~R\-RE.(Glyciphagus plumiger), 152- Actinocyclus Barklyi, 88 Albertia, 278 Albite and Orthose, Artificial, 117 Algae, British Marine, 40, 66 Algse, British Marine, Mounting of, 37 Algae, Parasitic, 37 America, Microscopy in, 184 America, Tertiary Flora of, 165 American Lake Region, Geology of, 261 Amoeba, Marine, 112 Ancient Vegetation, 140, 165 Animal Bones, Preservation of, 24 Animal Life, New Forms of, 231 Animal Ventriloquism, 279 Animalculse, How to Preserve, 22 Animals, Fur-bearing, 41 Animals, How to Preserve, 22, 38, 39, 215, 237, 279 <\nimals, Wild, Destruction of Human Life by, 280 Annelid, " Dero," the, 10 Ants, How to Destroy, 143, 158, 165 Apium gravcolcus, 193 Aquaria, Cheap, 167, 190 Aquaria, Marine, Cement for, 23 Aquaria for Microscopic Work, 119, 136, 137. Hi Aquaria, Sticklebacks in, 23, 95 Aquarium, Brighton, Notes at, 153 Aquarium, Freshwater, Hints as to form- ing a, 71 Aquarium, Matters Relating to, 143 Aquilegia, 147 Arge, Galatea, 283 Argillornis longipennis, 41 Artificial Precious Stones, 20 Arum Italicum, 186, 211, 235 Arum maculatum, 211 Asplenium septentrionale and Germaui- cum, 18, 40, 65, 93 Aust, Rhcetic Beds of Fossils in, 271 Balsam, Removal of Surplus, 141 " Banded Flints, 284 Barbastelle, the, 91 Barbots, 238 Bark Bread, 280 Batrachospermum, 167 Bears, Tame, in Sweden, 5 Beatty, the late Dr., 15 Bees, Fondness of for Paint, 213 Bees, Humble, in New Zealand, 67, 89 Beetles, as Female Ornaments, 258 Beetles, Black, Bait for, 95 Beetle, Potato, 1 Beetle, the Furniture, 22, 38, 71 Belt, Mr. Thomas, Death of, 260 Betularia, the, 46 Biological Association of the Dublin University, 16 Birds, Arctic, 16 Birds' Eggs of, 43 Birds' Eggs, Acts Relating to, 117 Birds, Migration of, 238, 262 Birds, Mimicry in, 137 Birds, Pairing of, 21, 6g, 141, 262 Birds, Parasites on, 262 Birds, Rare, Slaughter of, 64, 214, 258 Birds, Songs of, 262 Blackbird, Nest of a, 166 Blackbird, a Cream-coloured, 215 Blind-worms, Food for, 144 Blossoming, Curious Modes of, 70 Blowfly, Teeth of, 147 Bob-owlers, 283 Bombus lapidarius, 90 Bombus terrestris, 90 Bones, Fluid for Strengthening, 118 Borrago officinalis (Borage), Early Flowering of, 114 Bos palaindicus, 236 Botanical Curiosities, its Botanical Exchange Club, the Science Gossip Report of, 73 Botanical Holiday, a Dominie's, 3 Botanical Localities, 68 Botanical Work for April, 82 Botanical Work for June, 122 Botanical Work for July, 159 Botanist, the Critical, 242 Botany, 18, 39, 64, 91, 114, 138, 161, 185, 209, 235, 259, 278 Botany of the Channel Islands, 118, 141 Botaurus stellaris (the Bittern), 64 Bow, the Lunar, 45 Box, Collecting, a New, 269 Brachiopoda of the Atlantic, 137 Brachydiastematherium, 261 Bramble, the, near London, 203, 218 Bristol, Fossils in the Neighbourhood of, 271 British Association, Meeting of, at Dublin, 185 " Bruce," the Manchester Fire-horse, 202 Burrington Combe, Fossils at, 172 Buttercup, Derivation of Name, 191 Butterfly, a Five-winged (Gouopteryx rhamni), 17 Cabbage Leaf, Teratology of, 201 Cader Idris, Flora on, 39 Calloptine, a New Oil from Dead Locusts, 64 Calluna vulgaris, 3 Camberwell Beauty, Varieties of, 165, 190 Campanula rotundifolia (the Hairbell), 3, Canada Balsam in India, 137, 160 Canada, Natural History Notes on, 222 Carboniferous Amphibia, 236 Carboniferous Limestone, Microscopic Life in, 64 Carex Buxbaumii, 187 Carex punctata, 91 Castracana, 276 Cat, Anecdotes of a, 42 Cat and Rabbits, 262, 282 Cat, Suicide of a, 189 Catch-fly, two Fotms of, 210 Caterpillars, Cannibalism among, 233 Caterpillars, Colours of, 114 Caterpillars, Goat, How to Destroy, 237 Caves in Somersetshire, 70 Ceil, an easily made, 14 Cement for Marine Aquaria, 23 Ceratodus, 114 Ceratodus (an American Fossil), 117 Certhia/amiliaris (Tree-creeper), 118 Cetacea of Kerry, 57 "Challenger" Expedition, Results of, 231 Channel Islands, Botany of, 141 Chickweed, Species of, xs2 Clams, 263 Clams, preserved {Tridacna gigas), 215 Clepsy Drops, 236 Clifton, Fossils at, 272 Cliveden, Day at, 281 Coal, Diatoms in, 276 Cochlearia officinalis (Scurvy-grass), 10 Cockroach, Sections of Head exhibited, 136 Colias Edusa, 47, 138, 141, 163, 190, 213 Collecting-box, a New, 269 Collecting-stick, a, 276 Colorado Beetle, 222, 223 Colorado, Geology of, 40, 92 Colymbus septentrionalis (Red-breasted Diver), 64 Compositae, Side Lights on the, 66 Conodonts, 260 Coralline Crag, 212 Corals, Fossil, a New Genus of, 278 Costa Rica, Birds of, 64 Cotoneaster vulgaris, 250, 278 Covers, Thin, How to Clean, 16 Cratcegus monogeua, 139 Crata>gus oxyacanthoidcs, 139 Crayfish in Cumberland, 67 Creole, a French, Double Sight of, 214, 263, 282 Crocodiles, Mesozoic, gi Crocodiles, Neozoic, 91 Cruciferae, 9 Crustacea, New British, 138 Cuckoo, the, 161, 165, 213 Cuckoo, the, eaten by Kestrel, 103 (note) Cuckoo, Fed by Waterwagtail, 214 Cucumber, Influence of on Black Beetles, 118 Cumberland Association of Literature and Science, 20 Currents and Tides, Mr. Leighton on, 92 Cyclophora tenuis (Castracane), 276 Daisy, Monstrosity in, 260 Dana, Professor, Medal awarded to, 21 Darwinism, Practical, 114 Date Palm, the 'Phienix dactyliferd), 123 Deer Family, Geological History, 41 Dclpliinaptcrus lucas (Beluga), 60 Derbyshire, Botany of, 235 " Dero," the Annelid, 10 Diatom, What is a ? 105, 126 Diatoms, Does Dessication Kill ? 74 Diatoms, New, 276 Diatoms in Coal, 276 Diaitomaceae, Fossil, 112, 136 Diatomaceae, Habirshaw's Catalogue, 63 Diatomaceae, Method of Cleaning, 88 Diatomaceous Deposits near Richmond, 112 Diatomaceous Material, 160 Diatomaniacs, an Apology for, 112 Dinosaurus, a newly-discovered, 117 Dittany, 143, 166, 213 286 HA R D WICKE 'S S CIE NCE - G OS SIP. Diver, Great Northern [Colymbus Arcti- cus), 262 Dogs, Reasoning Power in, 47, 214 Dogs, Stupidity on the part of, 233 Dolphin, the Common, 86 Dolphin, the White-beaked, 87 Dorking, a Holiday round, 195 Dragon-flies, Works on, 213 Dredge, a "Tangle," 221 Dredging Expedition, Notes on a, 131 Dredging, Marine, 257 Dredging, a Simple Method of, 94 Dredging, Works on, 70 Dryolcstes pviscus, 189 Ducks, Wild and Tame, 238 Dublin, Geology of, 179 Dublin University Biological Association, 16 Dudley, Fossils at, 271 Dundry, Fossils at, 271 Dyes, Vegetable, Chemical Imitation of, 186 Eagle, Attack of, on Two Girls, 46 Earthworm, Habits, &c, of, 121, 154, 234 Earthworm, Slug the Terror of the, 121 (note) Echinodermata, Alternate Generation of, 277 Eel, a Veteran, 23, 104 Eels, Birth of Vinegar, 15 Egg, a Double, 212 Egg Drills, 239, 262 Egg-shells of Birds, Colouring of, 184 Eggs of Birds in Wrong Nests, 209, 238 Eggs of Birds, How to Blow, 22, 38, 39 Elasmobranchs, the Fins of, 89 Entomological Exhibition at Westminster Aquarium, 89 Epilobium angustifolium (Rose-bay Willow-herb), 161 Epping Forest, an Autumn Ramble in, 252, 272 Eye, the Human, Dr. Dudgeon on, 90 Fagot-stick, a Lesson from, 124 " Fagus " of the Latins, What was the ? 283 Fairy-flax, the, 44, 68, 94 Falco sEsalon (Merlin), 64 Fauna Insect in Palaeozoic Period, 20 Eenestel/a, History of the Genus, 247, Ferns, Filmy, How to Grow, 211 Ferns of North America, the. By Prof. Eaton, 114 Fish, Parasites on, 33. Fish, Survival of out of Water, 142 Fishes, Plaster Casts of, 107, 140J 169 Fleas in Country Quarters, 190 Flies, Forest, Protection of Horses from, 238 Flies, Fungus on, 212 Flies, Plague of, 140 Flies, Raptorial Habits of, 184 Flora near Cader Idris, Notes on, 39 Flora, the London, 114 Flora of Natal, 49 Flowers, Alpine, 259 Flowers, Autumn, Hints on Culture, 246 Flowers, Double, 259 Flowers, Fertilization of, 20 Flowers, Sugar in Nectar of, 235 Foraminiferae, Classification of, 30 Foraminiferae, Recent, from the Shetland Isles, 51 Fossil Bird, a, 189 Fossil Bird at Sheppey, 41 Fossil Corals, a New Genus of, 278 Fossil Diatomacese, 112 Fossil Fishes of Sussex, 67 Fossil Fresh-water Sponges, 140 Fossil Fungus, a, 21, 41, 67, 92, 116, 164 Fossil Insects, 140 Fossil Polyzoa, 247, 274 Fossils, a Tour in Search of, 271 Fox, Intelligence of a, 94 Foxgloves, Slugs on, 23 Frog, Chameleon-like Changes in the, 17 Frog, Development of Spawn, 53, 90, 118, 190 Fungi, Microscopic, 171 Fungi, Spore-producing Power of, 37 Fungus, the Fossil (see Fossil Fungus) Gannister Beds, Marine Fossils in, 92 Garden, Experimental, Proposal to Form, 23S. Gentiana acaulis, 18, 65 Gentiana acaulis in Wales, 40 Geology, 20, 40, 66, 116, 140, 164, 187,211, 236, 260, 278 Geology of Dublin and Wicklow, 179 Geophihis clectr/cus, 239 G/gartina Teeaii, 40 Glacial Period, Dr. Ricketts on, 92 Glacial Phenomena of Outer Hebrides, 164 Glass Slips. Preservation of, 15 Globicephahis melas (Pilot Whale), 84 Giyciphagtis palmifer, 38 Glycip/iagus plumiger, 152' Glyptodendron, the, 140 Gnat, a Few Words about a Little, 269 Gold in New Guinea, 140 Gold Size as a Varnish for Glycerine Mounts, 276 Gold-fish and Toad, 94 Gongylus gonegyloides, 38 Gonopteryx rhantni, 17 Goose, a Friendship of, with Pony, 238 Gooseberry, the, 119 Gorilla, the Berlin ("Pongo"), 17 Gossip about New Books, 54, 254 Gourds and Pumpkins, Inflorescence of, 19, 64 Government Research Fund, 116 _ Grampus griseus (Rissot's Dolphin), 62 Gray Lag, 237 Great Tit, Note of, 234 Grebe, Parasite Worms in Leg of, 88 Green Hastings, 190, 237 Grouse, Red, New Habits of. 17 Guinea-pig, Brotherly Love in, 239 Hair-bell, the White, 23, 94 Hair-bell (Campanula rotundi/olid), Spelling of, 69 Hair-bell, Derivation of Name, 94 Halitherium of Suffolk Crags, 184 Harvestman Spider, the, 79, 113 Hawk, the, _and_ Lapwing, 283 Hawk, Pertinacity of, 42 Hawk, Species of in Ireland, 281 Hedgerows in June, 139 Heer. Professor, Medal awarded to, 21 Helice, 47 Hemipterous Fauna of St. Helena, 161 Hen, Singular Affection of a, 43 Herbaria, Mould in, 235 Herbarium, How to make an, 134, 150 Herrings, 70 Herring Fishery, the, 93 Hirundinidae, Later Appearance of, 39 Histological Microscope, 283 Hollyhock, Flowers of tht, 235 Hollyhock, Variability of Colour in, 210 Hop Gardens, 166 Horse, Anecdote of a, 202 Horse Chestnut, Double-blossomed, 167 Horse-tails, Remarks on, 223 House Martin, the, 166 House Sparrow, the, 166 Howitt, Mary, Poetry on Flowers, 166 Human Hair, Sudden Change in Colour of, 44 Hy //sinus fraxini, 126 Hyperoodon rostratus, 38 Inflorescence, Definite and In- definite, 163 Insect Fauna in Palaeozoic Period, 20 Insects at Bournemouth, 23 Insects, Destruction of, 191 Insects, Fossil, 117, 140 Insects, Mimicry in, 38, 184 Ipecacuanha Root, Propagation of, 22 Ireland, Editor's Holiday in West of, 228 Ireland, Hawks of,. 281 Ireland, Natural History Notes from, 214 Ireland, Venomous Reptiles of, 42, 93 Japan, Pre-historic Man in, 20 Keeble, Poetry of, on Flowers, 166 Kestrel, the, 100 Kingfisher in London, the, 258 Labiat/e, 20 Laburnum, Flowers of the, 261 " Lag," the Grey, 165 Lake District, the Physical History of, 2r Lapwing ( Vanel/us cristatus), 213 Lapwing, Pugnacity of the, 45, 283 Leaves, Teratology of, 237 Leeds Natural History Society, 16 Lemming, the, in England, 44 Lepidium sativum (Garden cress), 9 Lepidoptera, Rare, Notes on, 38 Lichen, a Glass-eating, 128, 162, 187 Lightning, Singular Appearance of, 237 Lilac, Double, 167 Linnet, Parasite of the, 233 Linum catharticum, 94 Linum pe7-enne, 211 Lizard, the Food for, 144 Lizard Orchis, the, 278 Lobworms, 166 Locusts, How LJtilized when Dead, 64 London, Flora of, 114 Long Island, the, or Outer Hebrides, Glacial Phenomena of, 164 L ophius piscatorius, 1 53 Lumbricus terrestris, 121 Magpie, Intelligence of, 213 Mammal, Fossil, from Oolitic Formation of America, 189 Mammoth, Extinction of the, 236 Manatee at Westminster Aquarium, 184 Mandrake, 166 Marsh Plants, a Strange Place for, 280 Marsupial, the New Australian, 38 Maries foina (the Marten) in Cornwall, 117 Martin, Postponement of Departure, 23 Megalickihys Hibberti, 236 Melosira Barreri, 276 Mergenia erecta, Fertilization of, 139 Mesop/odon Soiverbiensis (Sowerby's Whale), 59 Meyenia erecta, 161 Micrometer, the, and How to Use it, 175 Microphone, 184 Microphoto of the Lord's Prayer, 257 Microscope, Improvement in Stands for, 63 Microscope Lamp, Miniature, 232 Microscope, Measuring with the, 231 Microscope, a New Field for the, 112 Microscope, the, a Plea for as a Toy, 33 Microscopic Fungi, 171 Microscopic Journal, the American, 87 Microscopic Journal, the Monthly, 15 Microscopic Mounting, a Wet Method of Preparing Objects for, in Microscopic Objectives, Apertures of, Theoretical Limit to, 209 Microscopic Organisms, 112 Microscopic Work for Aquarium, 119, 13C, J37> 141 Microscopists, Congress of at Indianopohs, 256 Microscopy, 14, 37, 63, 87, 112, 136, 160, 183, 208, 231, 256, 276 " Midland Naturalist," the, 39 Midnight Songsters, 93, 118, 161, 166, 190, 239 " Mighty Deep," the, 8r, 97, 142 Missel Thrush, and Song Thrush, 119 Mistletoe, the, 22 Mistletoe, Growth of on Apple, Pear.Thorn, and Willow Trees, 45 Mistletoe Berries, Experiment with, 139 Mites, How to Destroy, 17, 21, 47, 93, 214 Mites, White, 34 Moles at Work, 184, 189 Moth-trap, Vegetable, 259 Mounting, Machine for, 87 Mounting, Gold Size as a Varnish in, 276 Mounting, a Wet Process of, 160 Mounting Medium, a Good, 183 Mullein (VerbascumT kapsus), a Gigantic, 213 Murray, Andrew, Memoir of the Lr te, 50 Musical Notes of Birds, 88 Mustard, 35, 190 Nais osci/latoria, 10 Nais proboscidea, 10 HA R D WICKE ' S S CIENCE -GOSS IP. 287 Names, Scientific, Pronunciation of, 2, 25, 145, 209, 277 Names, Specific, Dr. Sclater on, 234 Narwhal, the, 59 Nasturtium officinale (Water-cress), 10 Natal, Flora of, 49 Natterjack Toad on Barnes Common, 167 Natterjack Toad in Cheshire, 107 Natterjack Toad on Shores of the Solway Firth, 67, 141, 142 Natural History in the 17th Century, 225, 244, 267 Natural History in Canada, Notes on, 222 Natural History in Ireland, Notes on, 214 Natural History Society, How to Start a, 201 Nebular Theory, the, 69 Nematus, New Species of, 90 Nests of Birds in Signal-bell at Coventry, Nests of Birds, Curious Places for, 281 Nests of Birds, Remarkable, 142, 189 New Forest, Beeches, Hawthorns, Hollies, and Oaks in, 259 Nightingale, the, in Derbyshire, 137 North Devon, Geology of, 238 Notes and Queries, 21, 42, 67, 92, 117, 140, 165, 189, 212, 236, 261, 279 Notes from West Kerry, 57 Oak " Spangles," 95 Object-glass, a New Immersion, 112 Odontophore in Mollusca, the, 89 Ophrys muscifera, 185 Orca gladiator (Grampus), 61 Orchis-hunting in Surrey, 163 Orchis hircina, 278 Organisms, Examination of Minute Living, 184 Oreole, the Golden, Musical Note of, 88 Ornithological Essays, 100 Ornithological Instruments, 283 Ornithological Nomenclature, 189 Orobanche, Growth of on Begonia, 139 Orobanche major , 211 Orthose and Albite, Artificial, 117 Owen, Professor, on Influences affecting Organic Forms, 91 Oysters, Coloured, 37 Painted Lady, the, 232 Palseontographical Society, 24 Palceospiza delta, 189 Palms, Acclimatization of, 178 Palms at Shanghai, 262 Palm-tree, Roots of the, 237, 261, 283 Papilio Machaon, Appearance of, 209 Parasites, Fasting, 190 Pastor, Rose-coloured, 16, 215 Pasque Flower, Position of the, 139, 166 Perisporiacei, 171 Permian Fauna in North America, 236 Petrel, Stormy, the, 23 Pezopliaps solitaria, 41, 89 Pigeons, Polygamy among, 67 Pigs, Solid-hoofed, 114 Pike, Holes in Head of, 17 Pikermi Sewalik Deposits, 236 Pinnularia, 128 Pithecolobium saman, 91 Phalangiidce, 113 Phoctsna communis (Porpoise), 84 Phosphorus in Salt Water, 239 Physeter macrocephalus (Sperm Whale), 7 Physostomum, the, 233 Planorbis navtilieus (C/irista), 184 Plant Chemistry, 18 Plant Crystals, 63, 160 Plant Crystals, How to Mount, 130 Plant -hunting, at Bournemouth, j 1 Plants, Anomalous Parts of, 19 Plants, Flowerless, 259 Plants, How to Dry, 187 Plants, Dried, How to Preserve Colours, 235 Plants, Development of, Specially Adapt- ive Appliances in, 156 Plants, Old Names of, 162 Plants, Rare, Destruction of, 161 Plants, Rare, New Localities for in Cheshire, 186 Pleopus nudicaudatus, 38 Polygala calcarca, 91 Polygala vulgaris (Milkwort), 123 Polygamy among Pigeons, 67 Polypogon lit! 'oralis, 278 Polyzoa, Fossil, 247 " Pongo " the Berlin Gorilla, 17 Pony, Friendship of a, with a Goose, 238 Posting-box for Slides, 87 Potato Beetle, 1, 57, 118, 222 Precambrian Rocks in Caernarvonshire, 20 Primroses, Dried, Colours of, 165, 238 Primitive Man, His Times and Compan- ions, 75, 98 Primula, hybrid, 19 Proteus anguinus, Development of, 138 Prunus avium (Wild Cherry-tree), 40 Pterodactyle' montanus. 261 Quartz in Lake District, 217, 241, 265 Rabbit, Friendship of, with a Cat, 282 Rabbits, Adopted by a Cat, 262 Rainfall, Inflnence of Trees on, 39 Rain-tree, the, 91 Rallus aquaticus (Pied Water-rail), 64 Ranunculus arvensis, 190 Ranunculus bulbosus, Monstrosity in, 91 Ranunculus Ficaria, 82 Ranunculus Ficariceformis, 82, 141 Ranunculus repeus, 167, 239 Rats, Drowning of, by Swans, 45 Reptiles, Venomous, in Ireland, 42, 93 Reviews : Darwin on Forms of Flowers, 54 The Antelope and Deer of America, by Catton, 54 Proteus, or Unity in Nature— C. B. Radcliffe, 55 Physiography, Prof. Huxley on, 55 Origin of the World — Dr. Dawson, 55 Accidents in Mines, 55 Habirshaw's Catalogue of Diatomaceae, 63 Flowers : their Origin, Shapes, Perfumes, and Colours — Taylor, 115, 21 1 History of Bible Plants — J. Smith, 115, 162 Manual of Irish Geology — Kinahan, 117 Tropical Nature — A. Wallace, 254 West Yorkshire — J. W. Davies and F. Lees, 255 Physical System of the Universe— S. J. Skertchley, 255 Science Primer— Dr. McVicar, 255 Glanville's Wootton— C. W. Dale, 255 Murray's Handbook for England and Wales, 255 Botanical Note Book — E. M. Holmes, 255 First Catechism of Botany— J. Gibbs, 255 The Creation of Moses and Science in Harmony — A. Stewart, 256 Half-hours with the Stars — Proctor, 256 The House of Life— Mrs. Miller, 256 The Sight, and how to preserve it, 256 Nutrition in Health and Disease— J. H. Bennett, 256 Phosphates in Nutrition— N. F. Ander- son, 256 English Folk-lore — Rev. T. T. Dyer, 256 Science made easy— T. Twining, 258 Popular Science for October, 258 Clavis synoptica Hymenomycetunt Euro- p JI9 . Hackney Microscopical, 137, 283 Northampton Natural History, 138 St. Francisco Miscroscopical, 160 Manchester Science Association, 185 The Goole Scientific, 185 Liverpool Naturalists' Field Club, 185 Birmingham Philosophical, 185 British Association, 185 Norwich Geological, 212 Highbury Microscopical, 231 Liverpool Microscopical, 257 Norfolk and Norwich Naturalists', 258 Norwich Science-Gossip, 258 Liverpool Geological, 279 Solatium Dulcamara, 18, 40, 93, 166, 215 Solitaire, the, 41 Somersetshire, Caves in, 42, 70 Song Thrush and Missel Thiush, the, 119 Sorrel, Derivation of Name, 215 Sparrow-hawks and Windows, 142 Spectral Phenomena, 45 Spheraphides, 15 Spider, the Harvestman, 79 Spider, Instinct in the, 214, 281, 282 Spider, Mode of Preserving, 95 Sponges, Researches among, 37 Sponges, Freshwater Fossil, 140 Sponsa's Headquarters, 31, 64 Spontaneous Generation, 15 Star-fish, New Species of (Palasieri/ia Kina/tani) 236 Starlings and Sparrows' Eggs, 165 Sticklebacks, Pugnacity of, 23, 95 288 HARDWICKE'S SCIENCE-GOSSIP. Sticklebacks, Worms in, 118 Stonechat {Saxicola Sta/iazina), a Black- throated, in Lancashire, 232 Stones, Precious, Artificial, 20 Stromatopora and Loftusia, 212 Structure of Organic For.ns, Influences on (Professor Owen), 91 Sugar in Nectar of Flowers, 235 Sugaring, Best Mixture for, 143, 2S0 Summer, Ladies', Tresses \Spiranthes Aestivalis), 138 Sun and Earth, Distance between, 47 Sussex, Fossil Fishes of, 67 Swift, Early Appearance of the, 143, 165 Sword-handle, Curiously Carved, a, 44 Sycamore, Fructification of, 44 Sy not its Barbastcllus, 91 Tanks for Breeding Microscopic Organisms, 174 Tasmania, Land and Freshwater shells of, 206 Taxidermy, Practical, 90 Teratology, Vegetable, 91 Tcstaccila. haliotoidea (Predatory Slug), 44, 161, 209 Tests, Diatom, Resolution of, 88 T-etrao Urogallus, 190 Thrush, Nest of a, 43 Thunbergia allata, 55 Tides, Mr. Leighton on, 92 Tinmtnculus cenchroides (Nankeen Kes- trel), 103 Tit, Great, the, Notes of, 234 Titmarsh {Partis palnstris), 262 Toad and Goldfish, 94, 113 Toads, Live, in Limestone Rocks, 199 Toads, Longevity of, 236, 237 TriassicStrata of South-west Counties, 117 Trichecodon Huxleyi (Fossil Walruses), 116 _ Trilobites, Jointed Limbs in, 20 Tulip, Derivation of Name, 191 Tardus roscits, 16 Turd us 7'iscivorns (Missel Thrush), Nesting of the, 43 Tyrian Dye, the, 44 Uraniid.e, 137 Vallisneria, Rapid Growth of, 114 Vanessa Antiopa, 143, 213 Vegetable Teratology, 259 Ventriloquisim, Animal, 279 Verbascum Blattaria (Moth Mullein), 235 Vertebrata, Mimicry among, 277 Virchow, Dr. Rudolph, on Freedom of Modern Science, 90 Vivaria, Reptile Plants for, 38 Vol vox Globator, 63, 91, 184 Vole, Field, Habits of, 233 Walruses, Fossil, 116 Walton, Izaak, Bust of, 281 Water Boatmen, 261 Watercress, 42, 43 Water-fleas on Straw. 189 Water Supply, Mr. De Ranee on 21? Wax Cell, an Improved, 208 Well Sections, Geology of, 187 Western Scotland, Geology of, 66 Whitethroat, the, a Mimic, 141 Whales and Seals of the British "Seas, 7„ 26, 38, 59, 84, 238 Whipultre, the, 95, 118 White Flowers, 94 White's Selborne, 78 Wicklow, Geology of, 179 Wight, Isle of, Botanical Notes on, i36- Winds, Mr. Leighton on, 92 "Windhover," the, 101 Wolf-dog, Irish, 140, 161 Woodpigeons, Nest of, 141 Worms in Flowerpots, 40 Worm Parasite in Leg of Grebe, 83, 89 Wren, Superstitious Dislike to, 47, 167 Ziphius, the, 58 Zoological Notes, 262 Zoology, 16, 38, 64, 83, 113, 137, 161, i34v 209, 232, 257, 277 \ 0 WYMAN AND SONS, PRINTERS, GREAT QUEEN STREET, LONDON, W C. LJH lAflP P