Imagens das páginas
PDF
ePub

to appear under a sort of membrane. This is a pupa state. A final moulting sets free the wings also, and the insect is now perfect.-Dunley Owen, B.Sc.

PHOSPHORESCENT INSECTS.-I venture to send an additional circumstance which seems to explain the phenomenon described in November SCIENCE-Gossip. I saw the other evening, on my gravel-walk, a bright light, which I found to proceed from a centipede, which was being violently attacked by a beetle, apparently Steropus madidus. The latter kept pouncing on its victim, and biting it with fury, and the beetle itself, as well as the gravel around, was covered with the luminous matter from the centipede, so that its form was distinct, in spite of the darkness. I brought the centipede indoors, and it seemed injured. It seemed to me to be unusually luminous, from the excitement it was in from the assaults of this carnivorous beetle.-John C. Scudamore, Norfolk.

WATER VOLES.-To substantiate my conjecture as to the carnivorous habits of water voles, I may mention that it was on the 5th of February, 1884, that I found the shells in their runs, and amongst them was a quantity of recent excrement of some small animal. With regard to Mr. J. A. Wheldon's suggestion, that it might have been done by common rats, I believe they only frequent the water during the summer time. There is no building of any kind, I should think, within a mile of the spot where the shells were found, and although I am often walking by the side of this canal, I have never seen a common rat there.-F. H. Parrott, Aylesbury.

MILDNESS OF THE SEASON AT ARUNDEL.-While taking a long walk in Arundel Park on Sunday, November 23rd, I observed several new shoots on the lime-tree, with their leaf buds expanding, and in three or four instances fully developed. A few days a friend of mine noticed some new shoots on the oak tree. These shoots must owe their early development to the then mildness of weather at the time of their evolution. Primroses have been gathered here quite a month ago.-A. W. Fry.

LARGE UNIOS AND ANODONS IN NOTTINGHAMSHIRE. Mr. Harmer's note concerning the Unio pictorum, 4 in., will, I have no doubt, be answered by Mr. Tuxford himself. I will only say that I have collected some from the same locality, as large and larger than the size mentioned. So far as there is any doubt as to their being Unios, I can only say that after fifteen years' collecting, neither Mr. Tuxford nor myself would be likely to mistake the species. Mr. Harmer mentions large anodons, 6 in. I took, a month since, at Sutton in Ashfield, in this county, some 300 specimens of A. cygnea, 150 of which measure more than 6 in. One specimen measures 7 in., two more 7 in., 30 between 63 in. and 7 in. and 50 or 60 between 6 and 6. These are the largest I have ever seen, but the species has been found much larger (see old numbers of SCIENCE GOSSIP). Specimens have been taken at Southampton, measuring 8 in., and in one case as much as 9 in. At Worthing, also, very large ones have been obtained, measuring 7 in. and 8 in. Should Mr. Harmer be desirous of seeing a specimen, I shall be pleased to send him a 6 in. A cygnea, if he will send me his address (see exchange column for my own).—Chas. T. Musson.

LARGE UNIOS AND ANODONS.-Since writing my note respecting the large shells in Ossington Lake, I have paid another visit to that locality. I was pleased to find that one portion where the shells were very plentiful had been untouched by the

workmen; here I gathered many large specimens of Unio pictorum, several exceeding five inches in length, the largest measuring 5 inches. I also obtained many examples of Anodon cygneus, the largest having a length of 6 inches. In respect to Mr. E. G. Harmer's note, I must remark that I never saw an Anodon cygneus which I should consider "a very similar looking shell" to Unio pictorum, nor, in fact, one that even bore a remote resemblance to any of the anodons. If Mr. Harmer has any such variety of this species, I shall be very pleased to make an exchange of shells with him.-W. Gain, Tuxford, Newark.

BATS. A note appears in your December number re bats flying during the winter months. It is possible that they do so, and I should say the reason was, mild weather during the time they were observed. I have noted that some hybernating animals seem to suffer, owing to partially renewed activity through mild winters, more than they would naturally do through a cold one. The warm weather, when no suitable food exists, must cause a waste of tissue, which cannot be replaced until the following spring, hence hybernating creatures such as the bat, grass snake, common lizard, &c., would present a more attenuated appearance in the spring following a mild winter, than if the winter had been cold, and thus inducive to complete torpor. I have observed this with respect to the grass-snake, but not yet with the bat. However, I have one now under observation, which is hybernating in a bird cage, and I notice it is rather restless on a warm night.-F. W. Halfpenny.

CAMEL. A dromedary is a camel, but a camel is not a dromedary. This I learned to recognise in repeated travels in Egypt and Asia Minor. The dromedary, as its name implies, is a swift animal, and bears the same relation to the camel as the fast trotting-horse does to the cart-horse, or pack-horsethese last being strong, heavy and slow. The dromedary is credited with trotting about twenty miles an hour-the torture of such a trot to one unaccustomed to it is fearful. An Arab bearer of despatches will keep up the pace for hours together. A well-bred, well-trained dromedary-for there are great differences-is valuable. A regular camel or burdenbearer cannot be forced more than some four or five miles an hour. Having ridden these day after day across the desert, I can say the movement caused by the long swinging sort of walk-though not painful to the rider, causes great fatigue till he learns to accommodate his back-bone to the motion of the animal. The Egyptian camel then and dromedary have respectively one hump, and a camel judge estimates an animal by the plumpness of this storehouse of fat. I never saw a "Bactrian or two-humped camel, till I was east of the Crimea,-John Anthony, M.D., F.R.M.S.

IRISH PEARLS.-In the muddy banks of the tidal river Blackwater, Waterford, buried to the depth of some inches, is found a shell-fish, commonly known as the sugar-loom, and which are used as bait for fishing. In some of these shells have been lately found a number of pearls, the finders of which looked upon them as no value, the shell fish being only looked for as bait. A few days ago a gentleman encountered a young lad who had several of these pearls in his pocket, and one of these having been sent to an expert has been valued at £5, and there is no doubt but that a large number of pearls of considerable value are lying covered in the mud of the river.-J. Graves.

to his

"PECULIAR HAILSTONES."-In "Nature," vol. xv., at page 163, your correspondent, Alex. Johnstone, F.R.S.S.A. (in the last number of SCIENCE-GOSSIP), will find, I think, a satisfactory answer enquiries regarding hailstones. The article in question is an abstract, with illustrations, of a paper "On the Manner in which Raindrops and Hailstones are formed," by Professor Osborde Reynolds, M. A., in which the author endeavours by theory and experi ment to explain the true nature and mode of formation of these productions.-J. A. Osborne, M.D., Milford Letterkenny.

I

HAILSTONES.-About nine or ten years ago observed that the form of hailstones was altogether -different to what I had in my earlier days been taught to assume. I had always been under the impression that they were spherical, in fact, minute blocks of ice-frozen rain drops. On the occasion of my enlightenment, I was in a field when a heavy hailstorm took place. This admitted of my seeing more perfect specimens than if I had been in the street, or on a public highway, as there was less probability of their being broken in their fall. The enormous size of the stones first attracted attention, but upon examining them, it was also found that they were conical with a smoothish rounded base. The sides of the cone were striated towards the apex. Many of the cones had broken apices, but sufficient was left to indicate their complete form. Those which were perfect began to melt first at their apex, the portion last to melt being the rounded base. It is believed that this peculiar form is due to the nucleus (a frozen ice particle) passing from the upper portion of a frozen cloud or fog. In its descent it overtakes and adds to itself other ice particles, these form the originating elements of the hailstone. By continued accumulation of particle and pressure on the edges of the base, they begin to round, until eventually it partly turns over and forms the commencement of the cone which is a rapid process. There is much assumption in this theory, but there is evidence of its practicability from the smoothness of the base, the striæ of its sides, its conical shape and the melting of the apex (the last formed part) before other portions. The firmness of the hailstone is proportionate to its size. The larger, the firmer, and the harder its base is to its apex, the larger, the heavier, and the greater the speed it will travel through the cloud. The size to some extent infers the depth or density of the cloud through which it has passed, perhaps both. The conical shape of the hailstone is well known, having been seen by other observers. Since first seeing it have often pointed its shape.-Matt. Hedley, F.R.C.V.S.

THE CORIXA IN THE AQUARIUM.-This insect forms a very handsome and interesting object of an aquarium. It is closely allied to the water boat-fly (Notonecta glauca), and is very abundant in our ditches; in fact much more so than the latter. I have several in my aquarium, and they are literally the life of it. I caught them from the bridged-over part of a ditch, when fishing for minnows and sticklebacks, and where the water is nearly in darkness. This suggests that they are fond of dark nooks. Unlike its relation the boat-fly, it swims with its back uppermost as do other aquatic insects. longest pair of legs are not the last as in the boat-fly, but the middle. It is so eccentric in its habits, that its actions often provoke mirth. I have closely studied it for some time past, and find that it frequently has to rise to the surface for a fresh supply of air which it does by a series of vigorous darts, and when it has obtained that supply, it regains the bottom by still more vigorous darts, in consequence

Its

of its increased buoyancy. So great is its buoyancy when charged with air that I have seen one raise to the surface a dead stickleback which must have weighed more than ten times the weight of the corixa. When it has descended to the bottom (a task which is only performed with the greatest of difficulty, judging from the zig-zag course the insect is compelled to pursue) it clings to the nearest stone or pebble, and stretches out its two flattened elongated legs, and remains in this peculiar position for some time. I am of opinion that the function which these members now perform is analogous to that performed by the poisers of a fly, viz. to balance the insect. After it has remained in this position for some time it performs a number of very comical spasmodic movements by quickly passing its two oar-like legs over its back, and as quickly withdrawing them. To the ordinary observer, this is done by the insect, probably for mere pleasure. A close observer,

however, detects in these very peculiar motions an object. This object is nothing less than to break up and set free parts of its air-bubble which most likely the insect finds renders its body too light. Its under surface where the air-bubble is, looks like a globule of quicksilver. The facility with which it bends its legs in almost any direction is very striking (I mean its middle pair). I think its food consists of the disintegrated particles of algae, which I have in the aquarium, and which by some means or other have become separated from their respective plants. Should my surmise prove correct, then the corixa will not only be found a pretty and interesting object of the aquarium, but also a useful member of it.-. Arthur Ayling.

NOTICES TO CORRESPONDENTS.

TO CORRESPONDENTS AND EXCHANGERS. As we now publish SCIENCE-GOSSIP earlier than heretofore, we cannot possibly insert in the following number any communications which reach us later than the 8th of the previous month.

TO ANONYMOUS QUERISTS.-We receive so many queries which do not bear the writers' names that we are forced to adhere to our rule of not noticing them.

TO DEALERS AND OTHERS.-We are always glad to treat dealers in natural history objects on the same fair and general ground as amateurs, in so far as the "exchanges" offered are fair exchanges. But it is evident that, when their offers are simply disguised advertisements, for the purpose of evading the cost of advertising, an advantage is taken of our gratuitous insertion of "exchanges" which cannot be tolerated.

WE request that all exchanges may be signed with name (or initials) and full address at the end.

W. WHITE.-Apparently your nuts belong to Juglandacea, and are probably Carya amara or porcina.

E. LAMPLUGH (Hull).-You cannot do better than obtain Dr. Cathcart's new ether microtome, manufactured by Mr. Charles Coppock, 100 New Bond Street, to whom write for its. "illustrated description."

A. L. For life-history of, and experiments on the common liver-fluke, see paper by Professor Thomas in "Quarterly Journal of Microscopical Science" for 1882. A good popular paper on the subject was also written by Mr. George Dowker, F.G.S., of Canterbury, a few years ago. A good description of the carthworm will be found in one of the volumes of "Science for All."

R. H. W.-You will find a good account of Stonehenge in the Guide to that place, to be obtained at Salisbury railwaystation; or a longer one in Ferguson's "Rude Stone Monuments' in Great Britain"; for an account of bone caves, see Professor Boyd Dawkins' work on Cave Hunting." Dr. Hicks' address on Bone Caves," will doubtless be published in the Transactions of the Society.

[ocr errors]

E. E. TURNER (Dublin).-Get Thome's "Botany," edited by A. W. Bennett, and published by Longmans. It will exactly meet your wants.

R. C.-We do not recognise the specimens forwarded to us. Please send fuller details.

BALLYWILLIAM.-You will find a good account of the Eu calyptus in the "Treasury of Botany." It has been planted in Italy in order to drain the marshes. Its leaves give off a great deal of moisture. The Eucalyptus is sensitive to frost, and will not prosper where the nights are frosty.

A. SHAW.-We do not undertake to name foreign specimens of natural history. The objects shall be sought up and returned to you. You will find Chenu's "Conchyliologie," of help in naming your specimens.

H. W. S. W. B.-The best diagrams for botanical class lectures are those of Professor Henslow's (drawn by W. Fitch), issued, we believe, under the direction of the South Kensington authorities.

S. C. COCKERELL.-There is, or was, a useful list of British shells published by Messrs. Mardon, Son & Hall, of St. Stephen Street, Bristol, compiled from Dr. J. Gwyn-Jeffreys' "British Conchology," by Mr. H. K. Jordan, F.G.S. The first part (1866), one shilling, contains all the land and freshwater species, and the marine as far as Littorinidæ. The second part (1875), one shilling and sixpence, from Rissoa to the end of the work. No doubt the publishers would give Mr. Cockerell

information about it.-G. S. T.

EXCHANGES.

RARE British plants offered for British or foreign Spargania. S. ramosum, only if in ripe fruit.-Beeby, 14 Ridinghouse Street, London, W.

WANTED, Sach's "Botany," latest English edition, Macmillan's. Exchange, Watson's "Theological Dictionary," 1068 pages, and Wesley's "Sermons," a large vols., or offers.J. Wallis, 50 High Street, Deal.

A FEW well-mounted sections of human teeth, showing dental exostosis, in exchange for other well-mounted slides.-Charles Arnold, L.D.S., 8 St. John's Villas, New Southgate.

WANTED, a turntable, also live box for microscope; exchange books, &c.-P., 4 Merridale Lane, Wolverhampton.

PUPA of Myrica and sea-birds' eggs in exchange for Lepidoptera or other eggs: also wanted, fresh killed specimens, for stuffing, of barn owl, kingfisher, hawfinch, and goldfinch. Give cash or exchange.-R. McAldowie, 12 St. Nicholas Street, Aberdeen.

WANTED, in exchange for set of diaphragms for photographic lens, dissecting-knives, live box, or mounted and unmounted objects; unaccepted offers not answered.-J. W. W., 445 Shoreham Street, Sheffield.

WANTED, butterflies and live bat (long-eared) in exchange for fifteen monthly parts of Routledge's "Every Boy's Magazine" for 1878 and part of 1879, and twelve numbers of "Photographic News," 1884. Unaccepted offers not answered.J. W. W., 455 Shoreham Street, Sheffield.

WANTED, the numbers of SCIENCE-GOSSIP from No. 1 to end of 1872, also from beginning of 1880 to end of 1883, bound or unbound, separate numbers preferable, all clean; will give microscopic slides in exchange, or apparatus and materials.Lists from J. J. Andrew, L.D.S.Eng., 2 Belgravia, Belfast.

OFFERED, 50-inch bicycle, with fittings; wanted, centre fire breech-loading gun.-Albert Newton, 24 Ryecroft Place, Ashton-under-Lyne.

WELL-BLOWN eggs of British and American birds for exchange. -Dr. J. T. T. Reed, Ryhope, near Sunderland.

A FEW choice specimens of Anodonta cygnea, from 6 to 61. Desiderata numerous, Vertigos, Clausilia Rolphii, &c., named varieties. Correspondence invited.-Charles T. Musson, 1 Clinton Terrace, Derby Road, Nottingham.

WANTED, to purchase secondhand copy of Jeffrey's "British Conchology."-C. W. White, 2 Woodrow Circus, Pollokshield, Glasgow.

WANTED, any species of Naiades from Asia, Africa, South America, and Australia, New Zealand, or any of the East India islands. For these either liberal exchanges or cash will be given. The attention of collectors and dealers, as well as scientific societies, is especially directed to this exchange.-A. G. Witherby, Cincinnati, Ohio, U.S.A.

WANTED, bull's-eye condenser polariscope, 2 inch objective, all of best make, for Ross' binocular. Will give copies of "Flowers and Flower Lore," 1st edition, in 2 vols., £1 1S., Chinese coins, or cash.-Rev. Hilderic Friend, F.L.S, Worksop.

WILL give "Flowers and Flower Lore" in exchange for a good series of micro slides, sections of insects, micro fungi, or foraminifera preferred.-H. Friend, Worksop.

FORAMINIFERA material (good) wanted in exchange for wellmounted slides of horn and hoof sections, selected foraminifera, &c.-A. C. Tipple, 35 Alexander Road, Upper Holloway, N. WANTED, fossils from upper miocene, middle eocene of France, upper miocene of Belgium and Germany, Solenhfen stone; also land shells from Philippine Islands and Madagascar. Offered, other fossils and shells.-Miss Linter, Arragon Close, Richmond Road, Twiekenham.

A LARGE lot of botanical books, &c., in exchange for natural history text-books. Desiderata, a few dozens of fine botanical micro slides for first-class mounts only, or for rocks and minerals. J. Harbord Lewis, F.L.S., 145 Windsor Street, Liverpool, S. WELL-MOUNTED slides of insects in exchange for micro photographs, diatoms, or foraminifera. Send list.-J. Boggust, Alton, Hants.

WANTED, collections of wild flowers and plants, or micro slides, books on natural history subjects, in exchange for violin.-J. W. Whitehead, 10 Seedley Park Road, Pendleton, Manchester.

WANTED, adult specimen of mole cricket (Gryllotalpa vulgaris). Young adder (alive), or other exchange offered.F. W. Halfpenny, 2 Fern Villas, Park Road, West Ham, Essex.

WANTED, a violin, bow, and case; Beattie's "Castles of England and Wales;" C. R. Leslie's "Handbook for Young Painters," or any other work on painting, in exchange for wellrooted plants of exotic ferns, blooming greenhouse plants, and fine varieties of the Cactus tribe, or British land and freshwater shells, or Britisb Lepidoptera and fossils.-F. R. E., 82 Abbey Street. Faversham.

WANTED, Crataegi, Hyale, Cinxia, Athalia, Semele, Rubi, Betulæ, Agestis, Alsus, Argiolus, Comma, Acteon, Elpenor, Fuciformis, Villica, Aprilina, Festucæ. Duplicates: Paphia, Selene, Cardui, Galathea, Cervinaria, Vetulata, Illunaria, Pudibunda, Viminalis, Flavocincta, Trapezina, Persicaria, Ocellatus, Tiliæ.-J. Bates, 10 Orchard Terrace, Wellingborough. WANTED, Charles II. half crown for "Boy's Own Papers," or James I. shilling for other books.-John T. Millie, Clarence House, Inverkeithing.

WANTED, good material for mounting, more especially insects (in spirit); also a quantity of any one insect (providing it is not common); well-mounted slides given in exchange.-C. Collins, 25 St. Mary's Road, Harlesden, N.W.

TRAN-SECTION of stem of Helianthus annuus, double-stained, in exchange for other good slide; diatoms specially desired: send list. Other slides to exchange and unmounted material, Offers to-P. Kilgour, 163 Dallfield Walk, Dundee, N.B.;

WANTED, SCIENCE-GOSSIP for January and February, 1884; will give 6d. each, and pay postage, if clean copies.-J. R. Hewitson, The Knowle, Mirfield, Yorks.

WANTED, material for micro-mounting, the following most desired: micro fungi, eggs of insects (especially those of parasites), whole insects (preserved in spirit for dissection), or foraminifera; will give in exchange' valentines, knife, or good mounted objects.-William H. Pratt, 15 Gill Street, Nottingham. WANTED, paraboloid or Webster condenser; good field-glass or induction-coil offered.-S. C. L., 276 Middleton Road, Oldham.

WANTED, British beetles; will exchange British beetles, lepidoptera, shells, fossils, &c. Send lists of duplicates and desiderata.-Delancey Dods, 47 Chepstow Place, Westbourne Grove, W.

I SHOULD be glad to correspond with a Coleopterist in one of the midland or northern counties with a view to the exchange of specimens during the forthcoming entomological season. I desire to exchange fresh and well-set specimens of Lepidoptera for Coleoptera in a similar condition.-Address: W. J. V. Vandenbergh, Esq., F.R.A.S., F.M.S., &c., 5 Yale Terrace, Leytonstone, Essex.

BOOKS, ETC., RECEIVED.

"Universe of Suns," by R. A. Proctor. London: Chatto & Windus." Geology of Weymouth," by R. Damon. London: Standford." Natural History Sketches among the Carnivora,” by Arthur Nicols. London: L. Upcott Gill.-" Aids to Long Life," by N. E. Davies. London: Chatto & Windus.-"The Speaking Parrots, a Scientific Manual," by Dr. Karl Russ. London L. Upcott Gill.-" Rabbits for Exhibition, &c.," by R. O. Edwards. London: Sonnenschein & Co.- Bibliography and Index to Climate," by A. Ramsay, London: Sonnenschein & Co.-"Edible British Molluscs," by M. S. Lovell. London: L. Reeve & Co.-"The Naturalist's World," by Percy Lund. Vol. for 1884. Sonnenschein & Co.-" The Disk, a Prophetic Revelation," by E. A. Robinson and G. A. Wall. London: Griffith, Farran, Okeden & Welsh.-" Annual Report of the Metropolitan Public Gardens, &c., Association.""Scientific Romances, No. 1. What is the Fourth Dimension ?" by C. H. Hinton, B.A. London: Sonnenschein & Co."Book Lore," No. 1.-" Journal of Conchology."-" The Gentleman's Magazine."-" Belgravia.". "The Journal of Microscopy."- "The Science Monthly."-" Midland Natural list."- Ben Brierley's Journal."-" Science."-" American Naturalist."-"The Electrician and Electrical Engineer.""American Monthly Microscopical Journal." Popular Science News."-"The Botanical Gazette."-"Revue de Botanique."-"La Feuille des Jeunes Naturalistes."-"Le Monde de la Science." ."-" Cosmos, les Mondes." &c. &c. &c.

COMMUNICATIONS RECEIVED UP TO 13TH ULT. FROM:R. S.-A. S.-M. G.-J. C. M.-J. C. S.-C. W. W.Dr. J. F.-A. R. W.-G. T.-S. A. B.-W. D.-A. G. W. A. E. P.-J. B. B.-S. F.-R. McA.-J. W. W.-E. D.E. A. W.-J.J. A.-A. N.-Dr. J.T. T. R.-W.H. L.-J. W. A. W. F.-T. B., jun.-F. H. P.-F. E. C.-C. T. M.-Č. A. A. N. T.-W. B.-L. E. A.-H. F.-J. T. M.-C. C.C. P.-J. B.-C. R. F.-J. A.-J. W. H.-R. H. w. J. W. W.-J. B. (Wellingborough)-J. H. L.-C. C. E. E. T.-W. G.-J. E. L.-H. W. S. W. B.-G. S. T.J. W. G.-A. C. T.-P. K.-Dr. A. D.-W. W. W.-C. P.H. F.-G. S. T.-Dr. H. W. S. W. B.-F. K.-A. W. L. J. G.-D. D.-D. S.-A. D. W.-A. A.-J. R. H.-M. H. S. C. L.-W. O.-J. P. W.-M. J. H.-Ã. U.-W. H. P.Dr. J. A. O.-A. A.-W. J. V. V.-R. C.-&c. &c. &c.

THE JOURNAL OF MICROSCOPY AND NATURAL SCIENCE.

PUBLISHED QUARTERLY, PRICE 15. 6d.

THIS well-known Journal, the recognised organ of the POSTAL MICROSCOPICAL SOCIETY, contains

a number of valuable and interesting articles relating to every department of Microscopy and the allied Sciences.

These are all written by experienced Microscopists and Specialists in their various departments of Science, and are illustrated by a number of Lithographic Plates-making it not only one of the largest and cheapest, but also one of the most widely circulated Journals of its class.

Other special features of the Journal are "Half-Hours at the Microscope with Mr. Tuffen West, F.L.S., F.R.M.S., ETC.;" "Selected Notes from the Society's Note-Books." New books relating to Microscopy, or to any branch of Natural Science, are carefully reviewed. Correspondence on matters of Microscopic or Scientific interest is inserted. There is also a section devoted to "Current Notes and Memoranda," 39 66 Exchanges," &c.

THE JOURNAL OF MICROSCOPY AND NATURAL SCIENCE is edited by MR. ALFRED ALLEN, Hon. Sec. of the Postal Microscopical Society, under the direction and with the assistance of the Committee; and may be had of all Booksellers. BAILLIÈRE, TINDALL, & COX, 20, King William Street, Strand, W.c. W. P. COLLINS, 157, Great Portland Street, W.

London:

LECTURES ON PHYSICAL GEOGRAPHY, GEOLOGY, BOTANY, AND ZOOLOGY.

The Editor of Science-Gossip is prepared to deliver EXTEMPORANEOUS LECTURES (well Illustrated with Diagrams) to Natural History, Literary, and Scientific Societies, &c. For Terms, &c., apply to Editor of Science-Gossip, care of Messrs. CHATTO & WINDUS, 214, Piccadilly, London, W. JUST PUBLISHED. Third Edition.

Enlarged and greatly improved.

HOW TO USE OUR EYES,

AND

How to Preserve them from Infancy to Old Age, with Special Information about SpectaclesBy JOHN BROWNING, F.R.A.S.

With FIFTY-TWO ILLUSTRATIONS, price 1s.; in cloth, 1s. 6d.

EXTRACTS FROM NOTICES OF THE FIRST EDITION.

"How to use our Eyes,' by John Browning, F.R.A.S., is a thoroughly practical little manual."-Graphic.

Every one who cares about his eyesight should get this little book; those who think their eyesight of no particular moment can very readily dispense with it."-R. A. PROCTOR, B.A., in Knowledge. "Gives many a useful hint to those who enjoy good eyesight and wish to preserve it, and gives the advice of an oculist to those obliged to wear spectacles and whose eyes are in any way affected."-Pall Mall Gazette.

"We have been especially pleased with the many useful hints given by Mr. Browning regarding sight preservation.”—Health. CHATTO & WINDUS, Piccadilly, London, W., and of all Booksellers; and at Messrs. W. H. Smith & Son's Bookstalls. Sent free for 1s. 2d. or 1s. 8d., by the Author, BROWNING,

JOHN

[blocks in formation]

63, STRAND.

PYRETIC SALINE.

It gives instant relief in HEADACHE, INDIGESTION, LASSITUDE, CONSTIPATION, SEA or BILIOUS SICKNESS, and quickly cures the worst form of TYPHUS, SCARLET, JUNGLE, and other FEVERS, PRICKLY HEAT, SMALL-POX, MEASLES, ERUPTIVE or SKIN COMPLAINTS, and various other altered conditions of the Blood.

[blocks in formation]

The testimony of Medical Gentlemen has been unqualified in praise of Lamplough's
PYRETIC SALINE, as possessing most important elements calculated to restore and
maintain health, with perfect vigour of body and mind :-"Have it in your houses, and
forget it not in your travels."

Dr. TURLEY.-"I have found it act as a specific in my experience and family in the worst form of
Scarlet Fever, no other medicine being required.'

SEE OTHER TESTIMONIALS IN ADVERTISEMENTS IN TIMES, &c., AND WITH EACH BOTTLE.
May be obtained of all Chemists, in Bottles, 2s. 6d., 4s. 6d., 11s., and 21s.

H.

LAMPLOUGH, Chemist, 113, Holborn.

LOUCHS

TRAD

COLLINS' HISTOLOGICAL MICROSCOPE, at £5 10., £7 10., £10, £12. MICROSCOPES. APPARATUS. MOUNTING MATERIAL.

ILLUSTRATED CATALOGUE free by post to any part of the world on application.

CHARLES COLLINS, OPTICIAN,

157, GREAT PORTLAND STREET, LONDON, W. POLARISCOPES, NOSE PIECES, LAMPS, ACHROMATIC CONDENSERS.

SOLE MAKER OF HARLEY BINOCULAR MICROSCOPES.

W. P. COLLINS, Microscopical and Natural Science Bookseller,

New and Second-hand Works on ALGE, BIOLOGY, BOTANY, CHEMISTRY, CORALS, CONCHOLOGY, DESMIDS, DIATOMS,
ENTOMOLOGY, HISTOLOGY, INFUSORIA, MICROSCOPY, NATURAL HISTORY, GEOLOGY, &c., &c., &c.
Back parts of the various Microscopical Journals, always in Stock. Catalogues on application. Scientific Books bought or exchanged.
Agent for the American Monthly Microscopical Journal, bs. per annum ; and Publisher of the Journal of Microscopy, 68. 6d. per annum, postage included.
157, GREAT PORTLAND STREET, OXFORD STREET, LONDON, W.

CHAS. COLLINS, JUN., MICRO-NATURALIST,

25, ST. MARY'S ROAD, HARLESDEN, LONDON, N.W.

ALL SLIDES MOUNTED BY C. COLLINS, JUN., ARE KEPT IN STOCK, AND CAN BE SEEN AT 157, GREAT PORTLAND STREET.

Now ready, the following, forming the first Three Series of COLLINS' "SPECIAL" MICRO SLIDES issued at 10s. 6d. per set, each set being carefully selected, and enclosed in a neat cloth racked box:

SERIES No. 1.-12 Fish Scales (Opaque) for Monocular or Binocular.

[ocr errors]

No. 1a.-9 Fish Scales (Polariscope) 3 Fish Skins (Opaque).

No. 2.-12 Slides of Heads of Insects, Mounted without Pressure, and specially showing

the structure of the Mouth in Biting and Sucking Orders.

Full detailed ProspectuS, WITH OPINIONS OF SCIENTIFIC PRESS, Free on applicATION.

From CHARLES COLLINS'S intimate acquaintance with all branches of the Microscopical Trade, he respectfully solicits Microscopists to furnish him with particulars of their requirements in Microscopical Apparatus (new or secondhand), having facilities for procuring and supplying them on most advantageous terms.

All Orders for Mounting Materials, Cements, Glass Slips, Thin Glass Circles, Cells (Tin or Glass), etc., executed with promptness. CHARLES COLLINS, JUN., 25, St. Mary's Road, Harlesden, London, N.W.

THE WANDERER'S LIBRARY.

Crown 8vo., cloth extra, 3s. 6d. each.

[blocks in formation]

THE LIFE AND ADVENTURES OF
A CHEAP JACK. By One of the Fraternity.
Edited by CHARLES HINDLEY.

THE WORLD BEHIND the SCENES.
By PERCY FITzgerald.

TAVERN ANECDOTES and SAYINGS:
Including the Origin of Signs, and Reminiscences
connected with Taverns, Coffee Houses, Clubs, &c.
By CHARLES HINDLEY. With Illustrations.

THE GENIAL SHOWMAN; Life and
Adventures of Artemus Ward. By E. P. HINGSTON.
With a Frontispiece.

THE STORY of the LONDON PARKS
By JACOB LARWOOD. With Illustrations.
LONDON CHARACTERS. BY HENRY
MAYHEW. Illustrated.

SEVEN GENERATIONS OF EXECU
TIONERS: Memoirs of the Sanson Family (1688
to 1847). Edited by HENRY SANSON.

SUMMER CRUISING in the SOUTH SEAS. BY CHARLES WARREN STODDARD. Illustrated by WALLIS MACKAY.

LONDON: CHATTO AND WINDUS, PICCADILLY, W.

« AnteriorContinuar »