9 6 



HARD WI CKE'S S CIEN CE- G O SSIP. 



X. Y. Z. — There is no examination for the degree of F.G.S. 

 It is purely honorary. You had best apply to the Secretary, 

 Burlington House, for further and fuller information. 



J. H. Jones. — Communicate with the Naturalists' Agency, 

 Salem, Mass., U.S.A., respecting exchanges of American 

 lepidoptera. If you look over the Exchange column of some 

 back numbers of Science-Gossip, you will find American 

 lepidoptera offered for English. 



E. S. M. — See article in present number as to the Antiquity 

 of Man. You had best write to the Secretary of the Society 

 for list of names, and inclose stamps. 



A. S. K. — Get Landsborough's "British Seaweeds," pub- 

 lished by Lovell Reeve. It has coloured plates, and the price 

 is ics. 6d. One of the cheapest and best is Grattann's " British 

 Marine Algae." It contains 205 capital engravings, and is 

 written by one of our best algologists. The price is 5s. 6d. It is 

 published at the Bazaar Office, 32, Wellington-street, Strand. 



W. W. Walters. — You will find full instructions how to 

 use the cyanide bottle in Dr. Knaggs's article on " Collecting 

 and Preserving Natural History Objects," published by Hard- 

 wicke & Bogue, at 3s. 6d. 



John Astley. — Your small insects (which came to hand 

 alive) are springtails or Podurip, and the species sent is 

 Achomtes puipurescens. They belong to a distinct group of 

 insects called Thysantirada'. See articles (with illustrations of 

 chief species) in Science-Gossip for December, 1872, and 

 January, 1873. 



M. G. — Woodward's " Manual of the Mollusca" is the best 

 book of its kind yet issued. The price is 7s. 6d., published by 

 Lockwood & Co. Any of the kinds of food mentioned would 

 serve as "treats " to the pigeons. 



T. W. (York). — You may obtain every article required for 

 natural history purposes from J. Gardner, 246, Oxford-street, 

 London. 



F. H. A. — Thanks for note respecting Gentiaua acaulis ; we 

 fear it will never occur as a genuine native. The Sedum resem- 

 bled scxangulare very closely. It is difficult to tell the dif- 

 ference betwixt this species and reflexum, except by seeing the 

 barren shoot, — then it is known at a glance. 



G. C. D. (Northampton). — Thanks for Carex, which we hope 

 to make use of. The rust on leaf of Trifolium Molinieri is a 

 not uncommon fungus. It also affects several species of dock. 

 It is the Uromyces apiculata. Lev. 



J. C. — You will find in Sach's " Botany," translated and 

 edited by Professor Thistleton Dyer and A. W. Bennett, and 

 published by the Clarendon Press, the best treatise on Vegetable 

 Morphology. 



F. W. Morriss. — It is a common occurrence for the tortoise- 

 shell butterfly to come out on warm sunny days early in the 

 year. Such specimens have been hybernating, and the light 

 and heat have revived them. 



H. L. Graham. — Your moss is Hypnum denticulatum. 



W. Thomson. — Your specimens of mosses are : — Pottia trun- 

 cattila ; 2. Hypnum denticulatum ; 3. Homalia trichoma- 

 noides ; 4. Anomodon vitiailosus ; 5. Hypnum undulatum. — 

 R. B. 



V. G. — Your micro fungus is Ceuthospora pkacidioid.es, Grev. 



S. A. B. — The fungus on leaves of box is Puccinia Buxi, 

 D. C. 



EXCHANGES. 



Mounted slides of Crateriiim pyriforme in exchange for 

 well-mounted Slides of interest. — S. C. Hincks, Farnham, 

 Surrey. 



A quantity of Balsam Mounts, of common but interesting 

 micro objects, for Coleoptera, Birds' Eggs, or anything in- 

 teresting. — C. W. Lawton, Essex-road, London. 



Isoetes hystrix, Helianth. guttatum, Orobanche cterulea, 

 and Gymnogramma Icutrp/iylla, &c, for Lathyrus palustris, 

 Galium Anglicum, Artioseris pusilla, Carcx tomentosa, &c. 



— G. C. Druce. Also G. C. Druce, Northampton, will be 



pleased to hear from the contributor to Exchange Club who 

 sent specimens collected by Mr. Notcutt. 



Asterina gibbosa (small) for foreign Echinus Spines. — 

 J. Keogh, 25, Camperdown-place, Yarmouth. 



First two vols. Cassell's Birds, in red leather, 12s. 6d. Also 

 wanted, first 12 parts, Morris's Birds, 2nd edition, exchange for 

 Morris's Butterflies, 1st edition, 12 parts. — E. Evans, Brins- 

 combe, Gloucestershire. 



WELL-mounted slides of Polycystina and rare Foraminifera 

 in exchange for others, or Lepidoptera. — Phonographer, 78, 

 Lozell's-road, Birmingham. 



Living Ferns and Alpine Plants, interesting microscopic 

 Slides and material, &c, in exchange for Section-cutter, really 

 good Slides, or material. Please see my offer in March number. 

 List free.— T. McGann, Burren, Ireland. 



Birds' Eggs. — Wanted, oological correspondence, and ex- 

 change with some of the numerous American, Colonial, and 

 Foreign readers of Science-Gossip. All letters answered. 

 William H. Armitage, Etruria Villa, Crookes-road, Sheffield. 



Wanted, Mounted Microscopic Objects of every description 

 for mounting materials. Send specimen and state wants. — 

 E. Atkins, 200, Essex-road, Islington, London. 



Foreign Shells. — Duplicates, mostly of Japanese, Chinese, 

 Burmese, Java and Philippines, Australian. Desiderata : princi- 

 pally North and South American, West Indian, Mediterranean, 

 Spanish, French, Algerian, and Egyptian ; also Duplicates of 

 about fifty sorts of British Land and Fresh-water Shells for 

 the above desiderata. Exchanges invited. — W. Sutton, Upper 

 Claremont, Newcastle-upon-Tyne. 



H. lamellata, H. aculeata, H. pygm&a, Z. radiatulus, 

 and H. fusca for any good Anodonts, Unio tumidus, or 

 Pictorum, from any place where I have not got them, in 

 England. — J. Whitwham, Cross-lane, Marsh, Huddersfield. 



Many species of British Shells, Sea, Land, and Fresh-water, 

 offered in exchange for foreign Clausilias. — Address : F. M. 

 Hele, Fairlight, Elmgrove-road, Cotham, Bristol. 



A pair of Telephones in exchange for Microscopic Slides, 

 well mounted. — L. Hawkins, 7, Castle-Down-terrace, Hastings. 



Small collection of Coleoptera, in good order, or well- 

 mounted objects, for cabinet, specimens of Flint Sponges from 

 the Chalk. — Address : R. H. E., Mr. Morton's, 165, Lewisham 

 High-road, S. E. 



For slide, with scales, of a rare and supposed new species of 

 Lepisma, send well-mounted slide to James Simpson, 15, 

 Prospect -place, Dumbiedykes-road, Edinburgh. 



Forty species of Hcpaticce (named), F. tamariudifolius, 

 G. squarrosum, T. abietinum, H. liians, offered for foreign 

 Marine Algae. — E. C. J., 12, Church-road, St. Leonards-on-Sea. 



A few rare British Birds' Eggs to exchange for rare British 

 Birds' Skins or Eggs, not in collection. All letters answered. — 

 R. Standen, Goosnargh, Preston, Lancashire. 



Send Botanical or prepared Entomological material in ex- 

 change for a healthy plant of Valisneria and Capsules of 

 Whelk Egg for Polariscope. Other material for exchange. — 

 Tylar, 165, Well-street, Birmingham. 



Send really good unmounted Material of any kind (except 

 diatomaceous earths), when well-mounted Slides or Material 

 (as preferred) will be forwarded in exchange. — J. Sherlock, 32, 

 Exchange-street, St. Helens. 



Rare Mosses, including Tortula H ornschuchiana , Hypnum 

 triquetnan, &c. (all in fruit), for well-mounted Micro Slides. — 

 T. Watson, Bank Parade, Burnley. 



Wanted, Lepidoptera (perfect or imperfect insects) for 

 Polyzoa from the Coraline Crag; Eggs, mostly sea-birds', and 

 other objects of interest. — F. M. Ogilvie, Sizewell House, 

 Leiston, Suffolk. 



London Catalogue, 7th edition, Nos. 135, 209, 239, 556, 

 577, 704, 709, 769, 810, 838, 975, 1031, 1284, 1297, and others, 

 in exchange for Nos. 1265, 1267, 1270, 1279, 1286, 1292, 1293, 

 1298, 1299, 1300, 1302. List exchanged. J. Tempere, 23, 

 Crouch-street, Colchester. 



In exchange for well-mounted slides, send Fossils or objects 

 relating to Marine Zoology. — C. P. Ogilvie, Sizewell House, 

 Leiston, Suffolk. 



Wanted, good gathering of Pleurosigma angulation, for 

 Diatoms, Slides, Material, or Cash. — Eug. Mauler, Travers, 

 Switzerland. 



A bottle of Preliminary Varnish, and one ditto of white or 

 coloured Enamel Cement, for good unmounted material. Micro. 

 Fungi, Diatoms, Marine Algae, &c, preferred. — Henry Vial, 

 Crediton. 



BOOKS, &c, RECEIVED. 



White's " Natural History of Selborne," edited by Prof. 

 Thomas Bell, F. R.S., in 2 vols. London : Van Voorst. _ 



" Proceedings of the Literary and Philosophical Society of 

 Liverpool," vol. xxxi. 1876-77. 



" The System of the World," by W. L. Jordan. London : 

 Hardwicke & Bogue. 



"The Freedom of Science in the Modern State," by Rudolf 

 Virchow, M.D. London : John Murray. 



" Land and Water." March. 



" Chambers's Journal." March. 



" Botanische Zeitung. " February. 



"American Naturalist." February. 



"The Naturalist." March. 



" Midland Naturalist." March. 

 &c. &c. &c. 



Communications have been received up 

 ult., from:— F. K.— J. F. R.— M. G.— M. H. 

 H. B. W.— J. E. J.— F. C. R.— T. E. D.— F. 

 E. D. M.— J. H. R.— D. D.— G. C— J. D. O. 

 Dr. R. H. W.— G. C. D.— H. L. G— T. McG. 

 A. S.— G. N.— C. P. O.— F. M. O.— G. C. D. 

 H. L.— G. P.— W. T— F. W. M.— T. S.— Prof. 

 — W. W. W.— J. H. K.— J. P. S.— R. S.— J. A. 

 E. H.— E. C. J.— M. R. D.--J. S.— E. S. M. 



A. S. K.— E. E.— J. R. S.-F. M.— R. H. E. 



B. H.— H. P. — H. G. W.— S. A. B.— L. H.— C. 

 H. W. T.— F. M. H.— T. B.— W. H. A.— E. C- 

 — T. W. D. — F. A. A.— A. L R. S.— A. S.— H. A. 

 —A. H. H.— R. W.— Dr. C. C. A.— W. S.— M. 

 H. B.-A. B.— &c. &c. &c. 



to the ioth 



C— T. W.— 



H.— E. W.— 



-C. W. L.— 



-S. C. H.- 



— H. G. G- 



J. T.— T. W. 



— G. W. L.— 



-J. L. H.— 



-R. B. C— 



W.— J. W.— 



J. K.— A. B. 



F.— X. V. X. 



K.— E. A.— 



