HARDWICKE'S SCIENCE-GOSSIP. 



" exchangers," whose advertisements are crushed out, not to 

 allow an " exchange " to exceed three lines, unless it is paid for 

 as an advertisement. Yours would make eight lines. 



B. — A good specimen of Euplectella might be purchased at 

 any natural history dealer's in London, say Henson's in the 

 Strand ; T. D. Russell, or Bryce Wright, for about js. 6d. or 

 10s. (2) As to preserving crustaceans, see note on this subject 

 by a capital authority, Mr. T. D. Russell, in September number 

 of Science-Gossip for 1877. (3) There is no book or even 

 exhaustive article on the latter subject. One is much needed. 



Gregorius. — The occurrence of starlings in flocks, especially 

 in the southern counties, is very common during hard winters. 

 Many of them leave the northern parts of Britain. The starling 

 has a sweet, twittering kind of note, but we should hardly rank 

 it among our song-birds. 



W. Bennet. — Bat received. Will examine it and let you 

 know. 



J. E. Stephens. — The object is part of the cluster of eggs 

 laid by the common whelk ( Buccinum undatum). See "Half 

 Hours by the Sea-side," by J. E. Taylor (page 203), published 

 by Hardwicke & Bogue, price 4s. 



H. G. Wheeler. — We believe the diatom you found in the 

 mussel is undescribed. It is a Cocconeis, and might be called 

 Cocconeis umbonata, or Cocconeis crucifera. — K. 



EXCHANGES. 



Wanted to exchange lichens for some desiderata in Parmeliae, 

 Ramalinae, Stictse, &c— J. McAndrew, New Galloway, N.B. 



Rissoa lactea, H omalagyra rota, and other rare British 

 shells, offered for minerals. Lists exchanged. — E. Duprey, 

 Jersey. 



Wanted, in exchange for good typical specimens of Cornish 

 rocks, and some minerals, a good collection of fossils represent- 

 ing the new red sandstone, or the permian or the old red for- 

 mations. — S. Tressider, Jun., Marlborough Road, Falmouth. 



I have a quantity of shells, mostly small, from east and west 

 coasts of Africa, which I should be glad to exchange for micro 

 slides or good material. — G.W.Brady, Carrow Works, Norwich. 



Duplicates of forty species of British marine shells for others 

 or birds' eggs. — Thomas H. Hedworth, Dunston, Gateshead. 



Wanted, named algae, zoophytes, &c., exchange. — 3 Belmont 

 Villas, New Brompton, Kent. 



For a fine spray of Plumularia falcata or Seriularia abic- 

 tina, each loaded with Crisa cbttrnen, and Cellepora pumicosa, 

 send well-mounted slides to E. W. Burgess, 35 Langham Street, 

 London. Pollens and rock sections preferred. 



Wanted, tooth of labyrinthodon, for microscopical purposes ; 

 will give interesting slide or material in exchange. W. H. Harris, 

 44 Partridge Road, Cardiff. 



Wanted, a copy of the last edition of the " Micrographic 

 Dictionary"; anyone having one for disposal, at a reasonable 

 price, will oblige by addressing H. G. Wheeler, 24 Knowsley 

 Street, Bury. 



Good British shells given in exchange for the shell stoppers 

 of foreign shells (Operculums) of various sorts. Also slabs 

 of polish of madrepores for good Silurian fossils. Will also 

 exchange thin down specimens of corals for the microscope for 

 good foreign Pinna;, Mediterranean sorts preferred. — A. J. R. 

 Sclater, 4 Bank Street, Teignmouth, Devon. 



"Conchology," by W. Wood, vol. i., 59 hand-coloured 

 plates, in good condition. Wanted, Nicholson's " Palaeontology," 

 or offers. — J. Carpenter, Cheshunt, Herts. 



Wanted, a few amateurs to join an ever-circulator, devoted 

 to botany, which has been in^ circulation since 1877. For 

 further particulars, address "Conductor," 233 Upper Brook 

 Street, Chorlton-on-Medlock, Manchester. 



Wanted, " L. C." 7th edition, Nos. 5, 13b, 18c and d, 23, 25, 

 3 2 . 37> 6 5> 9°. io 3» Io6 » H 8 , 153 CO. 214, 215, 221, 309, 367b, 395, 

 for others. Send lists. Also 100 named mosses, offered for 

 same number from another locality, or for an equivalent. — 

 R. V. Tellam, Bore Street, Bodmin. 



"L. C," 7th edition, Nos. 41, 45, 107, 124, 172, 209, 366,667, 

 814, 822, 824, 831, 858, 875, 906, 932, 1040, 1135, 1264, 1271, 

 1401, 1447. Send lists to H. R. Moiser, F.G.S., 2 South View, 

 Haworth, near York. 



Wanted, objects of marine zoology. Agates, minerals, &c. 

 offered in exchange. — J. P. Wright, Sunnybank Terrace, 

 Undercliffe Lane. Bradford, Yorkshire. 



Wanted, a good second-hand microscope ; write, stating 

 full particulars, to C. Mcintosh, no Dalling Road, Hammer- 

 smith, W. 



Well-mounted slides of portions of pigeon post, used during 

 siege of Paris, in exchange for two slides of interest, also well- 

 mounted. — L. Hawkins, Hillside, Hastings. 



Three skulls, lemur, porcupine, and another, also a good 

 scorpion, and a small flying-fish, to exchange for British birds' 

 eggs, side-blown, named fossils, or offers in natural history 

 objects. Science-Gossip for 1877, wanted, unbound preferred. 

 — W. B. R., 165 White Ladies Road, Bristol. 



Authenticated, side-blown eggs, 300 species, including 

 European, British, and African, clutches, broad-billed sandpipers, 

 parrot crossbills, hawk, owl, red-foot falcons, and most of the 



birds of prey, collected 1878 ; exchange arranged by letter. — 

 Sissons, Sharrow, Sheffield. 



Wanted, living specimens of Doris, Trochus, Nassa, &c. in 

 exchange for good micro slides, all well-mounted. — Apply Henry 

 Insley, 1 Back of Chester Place, Gerrard Street, Birmingham. 



To exchange, sixteen three-shilling parts of " British Wild 

 Flowers," by J. E. Sowerby, for Cox's "British Coleoptera " 

 and natural history specimens ; also, British plants for fossils. — 

 G. Robson, 92 Cranbourne Street, Leicester. 



Duplicates, pairs of fine well-set local Lepidoptera from 

 cabinet. Desiderata, skins of birds, squirrels, &c. 



" Nature "for 1876 (fournumbers missing), offered for foreign 

 or British Algae. — E. C. J., Monson Nursery, Red Hill, Surrey. 



One hundred silkworms' eggs {Bombyx Yama Mori), on. 

 receipt of stamped envelope or object of interest. — Mrs. Skilton, 

 London Road, Brentford, Middlesex. 



Cassell's " Wild Flowers," 24 numbers ; " European Butter- 

 flies and Moths," 12 numbers; a West Indian centipede and 

 two lizards in spirits. Will exchange all or any of these for 

 "Popular Science Review," geological works, or fossils. — 

 J. A. Floyd, Mission House, Alcester, Warwickshire. 



Slide of Glyciphagus plumiger, in exchange for other acarus 

 (rare) or animal parasite. — J. Lambert, 12 Glen Street, Edin- 

 burgh. 



Foraminiferous SAND from Barmouth, very rich, contain'ng 

 many rare forms, in exchange for slides, material, or shells. — 

 J. J. Colton, Barmouth. 



Duplicates of British land and fresh-water shells offered, 

 and the localities of each recorded. Succinea oblonga, Li>n* 

 Burnetii, Lim. involuta, V. pusilla, T. antivertigo, V. sub- 

 striata, V. alpestris, V. minutisshna, V . angustior, Fupa 

 ringctis. Desiderata, named foreign land and marine shells,, 

 which, if not in stock of any collector, are readily obtainable 

 from dealers. — W. Sutton, High Claremont, Newcastle-on-Tyne. 



Wanted, to borrow for a short time a flora of South Devon. 

 Address, with terms, A. D. Melvin, North Malvern. 



For well-mounted flea from mole, hedgehog, rabbit or hare, 

 also cattle tick, send good slides, marine diatoms, diatomaceous 

 earth, or good micro-fungi particularly wanted. — George Turvill, 

 East Worldham, Alton, Hants. 



Well-rooted plants of exotic ferns, blooming, greenhouse 

 plants (not bedd'ng) and many species of the Cacti tribe, several 

 producing magnificent flowers, in exchange for rare British 

 shells, foreign shells, polished stones, books on natural history, 

 or offers. — E. R. F., 82 Abbey Street, Faversham. 



Crystals of Zeolite from the Giant's Causeway, good polari- 

 scopic object ; also Foraminifera from Antrim and Down beach 

 floatings, and diatomaceous earth from Toome bridge, for any- 

 good slides. Lists exchanged. — William Gray, Mount Charles, 

 Belfast. 



BOOKS, ETC. RECEIVED. 



" Notes by a Naturalist on the ' Challenger.' " By H. N. 

 Moseley, F.R.S. London: Macmillan & Co. 



"The Study of Rocks." By F. Rutley, F.G.S. London: 

 Longman & Co. 



"Practical Geology." By W. J. Harrison, F.G.S. London: 

 W. Stewart & Co. 



" Geological and Geographical Survey of Colorado, &c," 

 1878. Washington: Government Printing Office. 



' ' Birds of the Colorado Valley." By Dr. Coues : Washington : 

 Government Printing Office. 



"Journal of-the Royal Microscopical Society." February. 



"American Quarterly Microscopical Journal." January. 



"Journal de Micrographie." January. 



" Feuilles des Jeunes Naturalistes." February. 



"LesMondes." February. 



"Revue Mycologique." January. 



" Midland Naturalist." February. 



" Land and Water." February. 



" Brierley's Journal." February. 

 &c. &c. &c. 



Communications received up to 12TH ult. from: — 

 F. K.— T. S— C P. O.— J. McG.— E. D.— W. B.— W. H. D. 

 _ j c W — S. T — T. P — F. T. F.-T. W.— W. L. B.— H. B. 

 — E. E.— G. W. B.— W. E. M.— C. W. B.— A. J. R. S— 

 W. L. G.-F. M.-C. R. S.-H. G. W.— J. C.-H. D. B.— 

 W. L. D.— E. W. B.— I. C. T.-Dr. M.-T. H. H.-J. A. S. 

 D. M. D.— G. L. B.— H. P. M.-H. W. L.-W. H. H.— R. R. 

 —J. O. Dr. P. Q. K.-M. M. B.-J. E. M.-R. S.— G. R.— 

 R. E.-J. W. S.-J. C. R--H. I.-J. S.-W. J. H.-A. B.- 

 F. C — W. B. R —J. S.-E. M.— Dr. De C— R. H.— A. D. M. 

 -C. Mcl.-J. P. W.-J. W. C-R. V. T.-R. B.-T. F. U.— 

 A. C. C.-W. J. V.-H. R. M.— F. I. W.-L. C— J. T.-G. N. 

 _j. r._v. W. M.-B. E. S.-C. F.— W. B. M— J. U.— 

 W . S.-J. J. C.-J. W. T.— H. E. G.-J. L.-J. A. F.-H. S. 

 -Professor T.-J. F. T. D.-S. C. H.-W. W.-G. R. G.— 

 M. S.-E. C. J.-W. H. H.-W. S.— E. R. F.-G. T.-R. P. P. 

 -C. R. L.-A. D. M.-W. B.— G. C D.— W. G.— W. E.;B.— 

 J. E. S.— &c. 



