144 



HARDWICKE'S SCIENCE-GOSSIP. 



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. 



C. Pemberton. — We do not think he could either "buy or 

 get a piece of marsh in exchange." He will have to collect 

 the marsh plants, taking each up carefully with a good portion 

 of the wet soil attached to it (just as he would transplant in his 

 garden), placing them side by side in a shallow pan, filling up 

 the interstices, as described in the "Marsh Garden," with 

 marsh moss (sphagnum). I shall be happy to give any further 

 information asked for, but think C. Pemberton will find no 

 difficulty in making a "marsh" such as described in Science- 

 Gossip. I never heard of or saw one till I made that experi- 

 ment. If C. Pemberton sends his address to I. Grierson, 

 17 Bentinck Street, Manchester Square, London, W., I will, if 

 possible, procure some marsh plants for him. 



Dr. B. and Other Enquirers. — Mr. F. V, Theobald's 

 "British Flies (Diptera) " is published by Elliott Stock, 62, 

 Paternoster Row. 



M. B. Underhill. — "The Cockroach," by Professor Miall 

 (illustrated), was published in Science-Gossip, vols, for 1884 

 and 1885, and afterwards republished in the volume form by 

 Macmillan. 



W. K. writes as follows : Herts, May 2, 1892, " I should be 

 much obliged if any of your readers could tell me if there is 

 such a thing as a botanist of approved capacity who undertakes 

 to name (and return) British plants sent to him (especially 

 during August and September). I have often felt the want of 

 such a resource, when bicycling, and unable to preserve doubt- 

 ful specimens till again reaching the sphere of books and 

 authorities." 



Aramis. — Johns' "Flowers of the Field," 5J., published by 

 S.P.C.K. "Illustrations of the British Flora," by Fitch and 

 W. G. Smith, ioj., published by L. Reeve & Co. 



A. Launder. — Taylor's "Flowers, their Origin, Shapes, 

 Perfumes, and Colours," is now published by W. H. Allen & 

 Co.; Dr. Master's "Vegetable Teratology," by the Ray 

 Society. 



EXCHANGES. 



Ross microscope, latest pattern, swing arm sub-stage, ro- 

 tating stage, 1 inch and i inch objectives, double nose-piece, 

 paraboloid, spot lens, live cage; also a Beck's Star and 

 accessories, offered in exchange for high-class works on 

 mechanics' or ships' chronometer. — Dr. Purcell Taylor, 57 

 Chancery Lane, London. 



Wanted, British and foreign marine curiosities, as star- 

 fishes, Crustacea, sea-urchins, and any of the following shells, 

 as Isocardia cor, Cochlodesma prcetenne, Clio pyramidata, 

 Alactra hclvacea, Limn&a hivoluta, Vertigo moulinsia?ta, 

 V. pusilla, Acme lineata, Tapes a urea, Cardium papillosum, 

 Diplodonta rotundata, Lima hians, Terebratuta caput- 

 serpent is, Ovula patula, Akera bullata, Aplysia depilans, 

 Helix aculeata, H. pulchella, or any rare varieties of helix, in 

 return for minerals, fossils, microscopic material and objects, 

 or rare British shells, viz., odostomias, rissoas, Scalaria 

 clathratula, cecums, Mangelia turricula, Defrancia Line- 

 aris, Lac/iesis minima, tapes, psammobia, cerithiopsis, Bar- 

 leeia rubra, etc.— A. J. R. Sclater, M.C.S., Natural History 

 Stores, The Strand, Teignmouth. 



Wanted, to correspond with collectors who may have 

 foreign stamps to offer in exchange for shells. — T. E. Sclater, 

 Northumberland House, Teignmouth, Devon. 



Offered, British marine shells in exchange for shells not in 

 collection, or insects and micro, slides ; will also give exchange 

 for the " Life of Thomas Edwards, Banff Naturalist." 

 — W. D. Rae, 17 Strafford Street, Millwall, London, E. 



Offbred, Newman's "British Moths," Kirk's "Physi- 

 ology," Ganot's "Physics." Wanted, "Carpenter on Micro- 

 scope," works by Gosse, or offers. — G. A. Barker, 24 Avenue 

 Villas, Cricklewood, N.W. 



Wanted, scientific apparatus in exchange for Cornish rocks, 

 minerals, and fossils. — W. H. Olver, 2 Adelaide Terrace, 

 Truro. 



Wanted, a clean, unmarked copy of "The London Cata- 

 logue of British Mosses and Hepatics," 2nd ed., 1881. Will 

 give good exchange in plants or slides. — W. Mackie, 77 Napier 

 Street West, Oldham. 



Will exchange first-class anatomical and botanical micro, 

 slides for good foraminiferous material, dredgings, etc. — W. 

 White, 17 York Street, Nottingham. 



A few duplicates of rare British flowering plants (dried), 

 British and foreign marine shells, British fossil shells, British 



land and freshwater shells, and British mosses, all correctly 

 named, offered in exchange for foreign land shells.— T. R., 

 27 Oldham Road, Manchester. 



Wanted, any of the vars. of unios or anodontas, for Vertigo 

 pygmeca. — John Radcliffe, in Oxford Street, Ashton-under- 

 Lyne. 



British marine shells. — Pectcn tigrmus (small), Cyanium 

 minutum, Tectum testudinalis. Lacuna pallidula, Lacuna 

 divaricata, Kissoa ca?icellata, R. parva, R. striata, Otina 

 otis. Wanted, British marine shells not in collection. — James 

 Simpson, 6 North St. Andrew Street, Aberdeen, N.B. 



Offered, Acme lineata. Vertigo substriata, V. edentula, 

 Zonites excavatus, and var. vitrina, Z. glaber, Helix lamel- 

 lata, H. aculeata, and several other shells, for nests and eggs 

 of goldfinch, hawfinch, nightingale, and fire-crested regulus, or 

 other rare nests. — Joseph Whitenham, 82 Cross Lane, Marsh, 

 Huddersfield. 



Science-Gossip for 1888 and 1889, also " Naturalists* 

 World" for 18S6 and 1887, unbound, perfect. Should be glad 

 to exchange for a few micro, slides, botanical or entomological 

 preferred. — F. C. Long, 32 Woodbine Road, Burnley, Lanes. 



New student's microscope, with rackwork sub-stage, by 

 Baker, also lamp, Cathcart microtome, Cole's section cutter, 

 and other micro, apparatus; Such's "Physiology of Plants," 

 De Barry's "Anatomy," Bower's "Practical Botany," and 

 other scientific works. — J. H., 19 Lambert Villas, Brixton 

 Hill, S.W. 



Duplicates. — Cwcwn trachea, Homalogyra atomus, circe, 

 ScroHcularia tenuis, Odostomia spiralis, O. pallida, etc. 

 Wanted, mollusca not in collection. — E. Tomlin, The Green, 

 Llandaft. 



The last twelve volumes of Science-Gossip, in numbers, 

 clean and complete; exchange offers. — Jas. Hedworth, Dun- 

 ston, Gateshead. 



Offered, "Natural History of Insects" (London: Murray), 

 second edition, 1839, in two vols., published at 5s. each, un- 

 soiled and perfect; Science-Gossip for 1887, "Naturalists' 

 Gazette" for 1888. Wanted, any good foreign shells not 

 already in collection. — W. Jones, 27 Mayton Street, Hollo- 

 way, London. 



Flint implements and flakes wanted from localities near 

 London.— G. E. M., 5 Warwick Place West, London, S.W. 



Wanted, diatoms and other good slides. Offered, micro. 

 mounts of larvae of ant-lion, stained forams, etc., also set of 

 diptera and other micro, material. — W. E. Green, 24 Triangle, 

 Bristol. 



Duplicates : 40 species of British butterflies, about 500 

 specimens in all. Desiderata, British dragonflies, fresh and 

 unset preferred : also British orthoptera, particularly mole- 

 crickets, field-crickets, and locusts. — W. Harcourt Bath, Lady- 

 wood, Birmingham. 



What offers for a small six-drawer cabinet suitable for birds* 

 eggs and shells. — 112 Rann Street, Birmingham. 



Wanted, cuckoos' eggs with clutches of the following species : 

 garden warbler, redstart, reed warbler, common wren, red- 

 backed shrike, nightingale, chiff-chaff, woodlark, common 

 bunting, house-sparrow ; good eggs offered in exchange. — W. 

 Wells Bladen, Stone, Staff. 



Lot of novels and other books for exchange. Wanted, fossils 

 from any formation except carboniferous ; lists exchanged.— 

 Walter C. Shields, 36, Gartusk Street, Crosshill, Glasgow. 



Voluta musica, Ncritina viridis, Tellina radiata, T. 

 {strigilld) Rombergii, Planaxis lineaiis, Bulimusexilis, Helix 

 aspersa, and H. lactea (from Gibraltar), Echinus sp/uzra, and 

 others, for land or marine shells, fossils or minerals not in 

 collection. J. Burman Rosevear, Roselea, 51, Crouch Hill, 

 London, N. 



BOOKS, ETC., RECEIVED FOR NOTICE. 

 "The Idler," (London: Chatto & Windus).— "English 

 Botany, or Coloured Figures of British Plants," (London: 

 George Bell & Sons). — "Journal of the Royal Microscopical 

 Society," (Williams & Norgate). — "The Apodidss," by H. M. 

 Barnard (London: Macmiilan}.— "1 Transactions of the York- 

 shire Naturalists' Union," parts 10-16. — "Gentleman's Maga- 

 zine." — " The Mediterranean Naturalist." — " The Midland 

 Naturalist." — " The Naturalist." — " Natural Science." — 

 "American Microscopist." — "American Naturalist." — "Nature 

 Notes."— " Essex Naturalist." — "Journal and Proceedings of 

 the Essex Field Club," etc., etc. 



Communications receive up ti the 12TH ult. from": 

 J. A. S.— W. H. N.— A. J. 'S.- T.— J. E. S.— S. G.— 

 W. T. L.— W. D. R.— H. f a -D. 1 . W.— I. H.— J. F. H.— 

 F. G. S.— W. K.— T. R.— / P.— F. S.— W. W.— H. H. C— 

 W. M.— D. W.— T. S.— H. R.— W. H. O.— H. W. B.— C C— 

 I. S.— E. M. B. U.— I. R— G. A. B.— I. G.— R. D. P.— A. B.— 

 T. E. A.— F. C. L.— R. D. P.— W. E. G.— W. J. J.— J. H.— 

 B. P.— Q. B.— G. E. M-— Dr. P. -J. H.— W. H. L.— W. H. 

 B.— B. T.— F.— R. B. P.— E. H. J. B.— J. B. R.— W. K.— 

 M. E. A— W. C. S.-B. P.-W. W.-Lord H— A. W. L.— 

 B. T.— H. B. W.— etc., etc. 



