HA RD WICKE' S SCIENCE- G OS SIP. 



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. 



Special Note. — There is a tendency on the part of some 

 exchangers to send more than one per month. We only allow 

 this in the case of writers of papers. 



To our Recent Exchangers. — We are willing to be helpful 

 to our genuine naturalists, but we cannot further allow dis- 

 guised Exchanges like those which frequently come to us 

 to appear unless as advertisements. 



Dr. S. (Grimsby). — Enquire about the Lists of Diptera, of 

 Mr. G. H. Verrall, Clerk of the Course, Newmarket. 



C. J. P.— You cannot do better than procure Newman's 

 "British Butterflies and Moths." It contains excellent wood- 

 cuts of each species. Messrs. W. H. Allen & Co., Waterloo 

 Place. 



EXCHANGES. 



Offered, micro, slides, collection of 200 to 250, chiefly 

 insect mounts. Wanted, polariscope and other objects, or 

 offers. 



Echinoderms. — Wanted, northern forms, as astronyx, goni- 

 aster, astropecten, luidia, amphidotus, &c. ; also the stone- 

 crab {Lithodes) and Norway lobster {Nephrons). Will ex- 

 change any specimens or micro, slides named in my lists. — 

 Sinel, Biological Laboratory, Jersey. 



Quadrant tandem bicycle, No. 15, balls, dress-guards, and 

 all accessories; also lady's bicycle, new, balls and all acces- 

 sories. Wanted, microscope, camera, fret-saw, or offers. — 

 W. Kirk, 20 Lombard Street, West Bromwich. 



To Lepidopterists. Companion- wanted for a visit to Digne 

 (S. France), for alexanor, scipio, &c, in July next.— R. B. 

 Postans, 14 Enys Road, Eastbourne. 



Wanted, a small collection of mosses and micro, fungi, 

 accurately named; two or three of each species if possible. 

 Good slides given in exchange, or state requirements. — Philip 

 Vancesmith, Ulawarra, Bath. 



Will exchange about thirty-six birds* eggs (three red grouse, 

 nightingale, partridge, &c.) for insects ; elateridce, Cicada 

 Anglica, especially desired. Please write— C. J. Powell, 137 

 King's Road, Canton, Cardiff. 



I can offer a few duplicates {Lond. Cat., 8th ed.) as follows : 

 189, 356, 620, 923, 1172^, 1315, 1441, 1669. Desiderata, 20, 86, 

 106, 243, 371, 492, 560, 604, 623, 900, 1431, 1574* 1597. I 7°4» 

 1763, 1841, and many others. — E. D. Bostock, Stone, Stafford- 

 shire. 



Wanted, to exchange "The Naturalist," from August 

 1884 to December 1891, for " The Midland Naturalist," 

 conchological books, or shells. — W. A. Gain, Tuxford, Newark. 

 Exotic butterflies. Brilliant wings Jof Morj>ho Jilenelaus, 

 Papilio Paris, Urania fulgens, &c. ; also fine cabinet speci- 

 mens in great variety. — J. C. Hudson, Railway Terrace, Cross 

 Lane, near Manchester. 



Wanted, Beulley's "Manual of Botany," Foster's "Phy- 

 siology Primer," Oliver's " Lessons on Elementary Botany," 

 and Balfour's "Botany," in exchange for good specimens of 

 British land and freshwater sheds, correctly named and 

 localized, or for young plants of some of the best varieties of 

 the cactus tribe, and exotic greenhouse ferns. — M. A. O., 

 82 Abbey Street, Faversham, Kent. 



Wanted, small British coleoptera ; must be named. Will 

 give micro, slides or material in exchange. — George T. Read, 

 87 Lordship Road, Stoke Newington, London, N. 



Valatine's knife in good condition. What offers in exchange 

 in micro, slides? — George T. Read, 87 Lordship Road, Stoke 

 Newington, London, N. 



Will N. Lincoln botanists kindly favour me with records of 

 cryptogamia (lichens, musci, and hepatic^) for publication?— 

 T. Larder, Mercer Row, Louth. 



Offered, J. G. Wood's "Field Naturalist's Handbook" 

 and "Common Moths," with coloured plates, &c. Wanted, 

 any of Richard Jeffery's works, or what offers? — E. Hodder, 

 40 Wimborne Road, Nottingham. 



For exchange, larvae preserving-tubes, with instructions 

 how to use; eggs of puffin, guillemot, black-headed gull, and 

 others (send for list, free). Wanted, lepidoptera, entomological 

 apparatus, or offers. — S. B. Chandley, Latchford, Warrington. 

 Wanted, Cornish or other minerals in exchange for Wear- 

 dale spars and minerals. — T. V. Devey, Wolsingham, Dar- 

 lington. 



Wanted, Science-Gossip for 1872, bound or unbound ; 

 good exchange given in shells, fossils, &c. — John Hawell, 

 M.A., Ingleby Greenhow Vicarage, Middlesbrough. 

 Offered, Partula iignaria, P. Otalieitana, P. gibba, 



Goniobasis livensis, G. virginha, Paludastrina antipoditm r 

 Gibbuli?ia palanga, G. sulcata, G. Ncivtoni, and many others. 

 Wanted, foreign helices. Exchange lists.— G. K. Gude, 

 5 Giesbach Road, Upper Holloway. 



What offers for " Val d'Arno," by Ruskin ; Kohler's 

 " Medicinal Pflanzen," folio, eighty-four coloured plates ; 

 "Journal of Botany" for 1890, 1891, bound half-calf, new, and 

 various pamphlets and excerpts from scientific periodicals, 

 containing papers on conchology? Wanted, books on con- 

 chology, and papers on foreign helices. — G. K. Gude, 5 Gies- 

 bach Road, Upper Holloway. 



Science-Gossip from January 1883 to March 1885, in- 

 clusive, and February to September, 1891, inclusive. Will 

 exchange anything useful or curious to a naturalist. — W. 

 Balmbra, Warkworth, Northumberland. 



Cuckoos' eggs wanted, with those of their foster-parents. 

 Many other varieties of eggs wanted. Rare eggs offered in 

 exchange. Correspondence invited. — W. Wells Bladen, Stone, 

 Staffs. 



Will exchange Bulimus oblonga, B. zebra, B. exilis* 

 Stenogyra octona, Achatina panthera, for helices, bulimi, or 

 marine shells not in collection.— J. Burman Rosevear, Roselea, 

 Si Crouch Hill, N. 



Wanted, slides of selenite, and good polariscope objects. 

 Offered, micro, slides, parts of insects, &c. — W. E. Green, 

 24 Triangle, Bristol. 



Offered, //. pomatia (sinistral), H. Bourcieri, H. morleti. 

 If. Iignaria, H. Iloronensis, H. Gaberti, H. Hombroni, H. 

 Mackenzii, H. coma, H. inccqualis, H. Josephine, H. Lowii 

 (semi-fossil), H. turricula, H. Michandi, H. laciniosa, Buli- 

 mus Ouveanus* B. scarab&us, B. fibratus, B. Dantzenber- 

 giana, B, Mastersii, Cho?idropoma Poezi, C. crenulata, 

 Czilomorpha /Java, &c. Offers solicited in other land shells. 

 — Miss Linter, Arragon Close, Twickenham. 



Offered, 100 mosses, named and localised; Buxbaumia 

 apkylla, Amblysdon dealbaius, Bryum IVarmtm, lacjistre, 

 Macrattii calophyllum, uliginosum, intermedium, and Cato- 

 strpium migritum, for micro, slides of animal matter. — G. 

 Forbes, 7 Grahame Place, Dundee. 



Wanted, works by Hewitson, Yarrel, Morris, or Seebohm. 

 Offered, rare lepidoptera, Newman's " British Butterflies and 

 Moths," vols. 14, 16,17, an d 24 of "The Entomologist," unbound 

 and vols. 1 and 2 of the " Entomologist's Weekly Intelligencer." 

 — C. C. Wood, 8 Barlow Terrace, Richmond Grove, Manchester. 



Science-Gossip from commencement, 1865 to 1889, inclusive, 

 bound and in excellent condition, for offers. — Edward Wright, 

 89 Shepherdess Walk. 



Eocene fossils, named and localized, also minerals and 

 Cornish rocks. Will exchange for other minerals and rock 

 specimens, terebratulas from chalk (perfect), or offers. — E. H. C. 

 Davies, 46 Upper Belgrave Road, Clifton, Bristol. 



BOOKS, ETC., RECEIVED FOR NOTICE. 



" Laboratory Practice," by Josiah Parsons Cooke (London : 

 Kegan Paul, Trench, Triibner & Co.).— "The Oak," by H. 

 Marshall Ward, M.A. (London : Kegan Paul, Trench, Triibner 

 & Co.) — " Foods for the Fat," the scientific cure of corpulency, 

 by Dr. Yorke Davies (London : Chatto & Windus, Piccadilly). 

 — "On the Modification of Organisms," by David Syme 

 (London: Kegan Paul, Trench & Co.). — "Catalogue of Zoo- 

 logical and Palseontological Books" (London: Dulau & Co.)* 

 — "Island Life," second and cheaper edition, by Dr. Alfred 

 Russel Wallace (London: Macmillan & Co.). — "A Summer 

 School of Art and Science," summer meeting, Edinburgh 

 (vacation studies), sixth session, August 1-31, 1892 (University 

 Hall, Edinburgh).— "The Conchologist," a quarterly journal 

 for conchologists, edited by Walter E. Collinge (London: 

 Swan Sonnenschein & Co.), — " Catalogue of Works on Natural 

 History," part i. Zoology (offered by Bernard Quaritch).— 

 " The Naturalist," a monthly journal of natural history for the 

 North of England, edited by W. Denison Roebuck and Edgar 

 R. Waite (London: Lovell Reeve & Co.).— "The Botanical 

 Gazette," edited by J. M. Coulter, C. R. Barnes, and J. C- 

 Arthur (Wisconsin: Tracy, Gibbs & Co.). — "Nature Notes," 

 the Selbourne Society's Magazine (London: H. Sotheran & 

 Co.). — "The Journal of Conchology," conducted by J. W. 

 Taylor, F.L.S. (Leeds : Taylor Bros.). — "The American 

 Monthly Microscopical Journal " (Washington : Chas. W. 

 Smiley).— "The Victorian Naturalist," edited by A. H. S. 

 Lucas (London : Dulau & Co.). — " Natural Science," a 

 monthly review of scientific progress (London: Macmillan & 

 Co.).—" The Irish Naturalist," No. 1, &c, &c. 



Communications received up to the 12TH ult. from : 

 W. E. G-— B. T.-J. A. R.— W. G. B.— W. H. N.— C J. P.— 



D. B.— E. W.— F. A. F.— G. R. R.— W. B.— F. E. H.— 

 W. W.— R. B. B.— J. S.— W. A. T.— P. V.— E. D. B.— 

 C. L. L— B. P.— J. H.-E. W. H. B.-W. B.— T. S.— 



E. W. W. B.— E. A. M.— W. W. B.— T. B. R.— W. E. G.— 

 J. E. L.— G. P.— C. C.W.— S. B. C— E. H.— J. L.— G.T. R. 

 — M. A. A.— W. A. G.— H. E. S.— J. E. H.— H. E. G.— G. V. 

 — W. J. N.— &c, &c. 



