1 68 



HARDWICKE'S SCIENCE-GO SSIP. 



E. Dixon. — The shining black flakes in granite are horn- 

 blende— although there is occasionally black mica present. 

 Hornblende or schorl is not actually black, but of a very 

 blackish green colour. 



The Earth-worms of Norfolk and Suffolk. — The Rev. 

 H. Friend, F.L.S., Idle, near Bradford, Yorks., advises us 

 that the earth-worms of Norfolk and Suffolk are absolutely 

 unknown. Here are chances for young naturalists, who 

 should communicate with Mr. Friend. Mr. Friend is anxious 

 to get the important subject of the distribution of earth-worms 

 determined. 



P. S. — You cannot do better than procure a copy of Stark's 

 "British Mosses" (coloured plates and capital verbal descrip- 

 tions). Doubtless Messrs. Dulau, of 37 Soho square, or Messrs. 

 Wesley, Essex Street, Strand, could supply you with a copy. 



T. E. T. — The rock specimen is in the mechanically meta- 

 morphic condition known as foliation. The rock constituents 

 are almost in the semi-mica-schist stage. You will see the 

 entire rock district about Ben Lomond is in this foliated, con- 

 torted, and semi-metamorphosed state. 



EXCHANGES. 



Wanted, back numbers of the "Midland Naturalist," first 

 six volumes. Send list of the numbers, with the desired ex- 

 change, to— W. B. Grove, 136 Edmund Street, Birmingham. 



Slides of algK-washings from Mauritius, containing, among 

 many other forms, some of that beautifut diatom, Actinocychts 

 confluens, Greenow. Send list of diatoms, or other objects.— 

 Rev. A. C. Smith, Woodside, Crowboro', Sussex. 



Offered, Newman's " British Moths," Kirke'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, collections of foreign stamps, and rare species of 

 British land and freshwater shells. Offered, lepidoptera and 

 exotic shells.— Miss M. E. Pepperell, 5 Park Street, Bristol. 



Wanted, birds' eggs of rare species; can offer shells and 

 lepidoptera. — W. K. Mann, Wellington Terrace, Clifton, 

 Bristol. 



Wanted, any volume of Sowerby's "English Botany," 

 3rd ed., except 7, 8, and 9. Books or herbarium specimens 

 offered in return.— E. F. Linton, Crymlyn, Bournemouth. 



Offered, Science-Gossip for 1886 (except January), 1887 

 (except December], and parts 239-242 ; also fossils from the 

 Gault and carboniferous. Wanted, lignite, peat, anthracite, 

 native alum, native nitre, and Cornish rocks and minerals. 



Eggs of sooty and noddy terns, Bartram's sandpiper, etc., 

 for exchange. Send offers to — W. Wells Bladen, Stone, 

 Staffordshire. 



Mounted leaf of enchanter's nightshade (Circcea alplnci), 

 showing crystals in sitfi, in exchange for other slides of interest. 

 Parts of insects or parasites preferred.— George T. Reed, 

 87 Lordship Road. Stoke Newington, London, N. 



Science-Gossip from 1885 to 1S91, both inclusive ; also 

 "The Naturalist's World" for 1884 to 1887, complete, but not 

 bound. Wanted, micro, slides or offers. — W. E. Harper, 

 Norfolk Road, Maidenhead. 



Wanted, living paludina and cyclostoma; also ipirit speci- 

 mens of taenia, distomum, scolopendra, and scorpio, in ex- 

 change for anything in my various catalogues.— J. Sinel, 

 Biological Laboratory, Jersey. 



Offered, A.Jluviatilis, B. acutus, C. minimum, C. rugosa 

 P. fontinale, P. pusillum, S. comeum var. pisidiodes, S. 

 elegans, V. piscinalis, and V. pygmtea. Wanted, Acliatina 

 acicula, C. Rolphii, C. biplicata, S. oblonga, S. Pfeifferi, S. 

 •virescens, or any foreign helices.— T. W. Paterson, 59 Hazel- 

 bank Terrace, Edinburgh. 



Three Tapes decussatus will be given for any one of the 

 following shells: — Area tetragona, A. obliqua, Cardium pa- 

 pillosum, Tellina bala?tstina, Lutraria oblonga, Nucula cus- 

 fidata, Mya BingJiami, Pa?u>pea plicata, Acera bullata, 

 Pecten striatus, P. niveus, P. Danicus, Terehratula (any), 

 Scalaria Trevelyana, Ianthina communis, I. exigua, I. 

 pallida, Trochus granulatus, Clio Pyramidata, A ply 'sia punc- 

 tata.— -T. E. Sclater, Natural History Stores, 43 Northumber- 

 land Place, Teignmouth. 



Offered, fifty foreign stamps — U.S.A., British Honduras, 

 Columbian and Argentine Republics, etc., all different. What 

 offers in exchange? — Richard B. Corbishley, Breck Road, 

 Poulton-le-Fylde, Lancashire. 



L. Cat., Sth ed. Wanted, 5c, 29b, 61, 68, 71* 72, Si. 133, 

 j66b and c, 232, 389, 390, 484, 584, 750, Sio, 838-850, 891^, 932, 

 1144, 1312, 133S, 1460, 1483, 1508, 1509, 1515, 1706, 1818. 

 Offered, 19, 21, 41, 84, 101, 107^, 108, 1090, 123, 141, 1C1, i6xb, 

 i~o> 175. 193. 2°°- 212, 229, 240, 291, 33s, 335<$, 336, 339, 341, 

 353. 372, 393. 483. 53°» 53 8 » 562, 576. 6«» 692, 698, Hierac. 

 angitstum and auratum, 928^, 969, 970, 973, 1187, 1194* 1255, 

 1410, 14S3, i5iS£, 1629, 1630, 1753. 1772, 1813, 1845.— J. A. 

 Wheldon, 9 Chelsea Road, Walton, Liverpool. 



Wanted, entomological cabinet, store-boxes, and setting 

 boards, in exchange for secondary and tertiary fossils, birds' 

 eggs, etc.— W. D. Carr, Lincoln. 



I have a number of Gault fossils for exchange, principally 

 ammonites and belemnites, and shall be glad to hear from 

 collectors who require same. — Edward A. Martin, 21 Carew 

 Road, Thornton Heath, Surrey. 



"American Geology," with plates, by E. Emmons, 4 vols. : 

 " Memoirs of the Geological Survey of the United Kingdom," 

 with plates, 9 vols., 1849-1861 : " Pal^ontographical Society," 

 with plates, 6 vols., 1848-1874; "Catalogue of Shells," by 

 F.Paetal, 1883, offered in exchange for rare shells or offers.— 

 Miss Linter, Arragon Close, Twickenham. 



Duplicates. — About forty species British butterflies, twenty 

 species British marine shells, and thirty species land and fresh- 

 water shells. Desiderata, British dragonflies, fresh and unset 

 preferred : also grasshoppers, locusts, and crickets, especially 

 mole and field-crickets. — W. Harcourt Bath, Ladywood, 

 Birmingham. 



Spluzrium comeum, Pis. pitsillum, Unio pictorum, Neritina 

 Jluviatilis, Byth. acutacutata, Hydrobia ulva, Physa /on~ 

 tiualis, Lim. palustris, Lint, glabra, Helix Jiortensis, vars. 

 lutea, lilacina, arenicola, Clausiliz rugosa, Clausilia Ralphii, 

 Clausilia lajninata, Carychium minimum, etc, offered in 

 exchange for good specimens of land and freshwater shells noC 

 in collection. — C. Baldock, 21 Chapel Street, Woolwich, S.E. 



Will any cryptogamic botanist join me in a ten days' 

 exploration of the Cairngorms (from Speyside) about the 

 middle of July, for mosses, hepatic^, and lichens? — William 

 Smith, Addison Place, Arbroath, N.B. 



Duplicates. — Pupa of Liparis dispar. Desiderata, nume- 

 rous ova, larva, and pupa. — Ernest Piatt, West Street, Chip- 

 ping Norton. 



Foreign shells, chiefly marine, for exchange. Please send 

 lists to— J. E. Cooper, 93 Southwood Lane, Highgate, N. 



BOOKS, ETC., RECEIVED FOR NOTICE. 



" Farmyard Manure," by C. M. Aikman (Edinburgh and 

 London: William Blackwood & Sons). — "Theoretical Me- 

 chanics," by J. Spencer (London: Percival & Co.). — "The 

 Flora of Guernsey," by E. D. Marquand.— " On Geological 

 Zones," by Horace B. Woodward, F.G.S. — "The American 

 Monthly Microscopical Journal " (Washington : Chas. W. 

 Smiley). — " The Entomologist's Record " (London : Elliot 

 Stock). — "The Microscope " (Washington : Microscopical 

 Publishing Companv). — "In Starry Realms," by Sir Robert S. 

 Ball, D.Sc, LL.D.,"F.R.S. (London: Isbister& Co.).— " Mine- 

 ralogy." by F. H. Hatch, Ph.D., F.G.S. (London: Whittaker 

 & Co.) — "Mediterranean Naturalist," by May (London: W. 

 P. Collins). — "The Physiology of the I nvertebrata," by A. B. 

 Griffiths, Ph.D., F.R.S., F.C.S. {London: Reeve & Co).— 

 "Res Judicata?," Papers and Essays, by Augustine Birrel 

 (London: Elliot Stock).— " Transactions of the Burton-on- 

 Trent Natural History and Archaeological Society " (London : 

 Bemrose & Sons, Limited). — " Tanganyika," by Edward Coode 

 Hore (London: Edward Stanford). — "The Organisation of 

 Science," by a Free Lance {Covent Garden : Williams & Nor- 

 gate). — "The Optical Indicatrix," by L. Fletcher, M.D. 

 (London: Henry Froude). — "Nature Notes" (London: H. 

 Southeran & Co.). — "The Entomologist" London: West, 

 Newman, S: Co.). — "Geological Magazine" (London: Kegan 

 Paul, Trench, Triibner, & Co.).— "Magazine of Natural 

 History" (London: Taylor & Francis). — "Essex Naturalist" 

 (Chelmsford :iDurrant & Co.). — " Le Diatomiste," par J. Tern- 

 pere (Paris: 16S, Rue St. Antoine ; London: W. P. Collins, 

 157, Great Portland Street). — "Sponge Remains in the Lower 

 Tertiary Strata," by G. Jennings Hinde, Ph.D., and W. Mur- 

 ton Holmes (London: Taylor & Francis}.— " On the Age, 

 Formation, and Drift Stages on the Darent Valley," by Joseph 

 Prestwich, D.C.L., F.R.S., etc.— «* Healthy Households," by 

 Guy Cadogan Rothery (London: J. S. Virtue & Co.).— 

 "Annual Report of the Wellington College Natural Science 

 Society " (Wellington College : George Bishop). — " The Idler," 

 (London: Chatto & Windus). — "Gentleman's Magazine."— 

 " The Mediterranean Naturalist." — '* The Midland Naturalist." 

 — " The Naturalist." — " Natural Science." — " American Micro- 

 scopist." — "American Naturalist." — "Nature Notes." — "Essex 

 Naturalist." — "Journal and Proceedings of the Essex Field 

 Club," etc., etc. 



Communications received up to the 12TH ult. from: 

 F. A. F.— J. P.— E. D. M.— F. G. B.— F. S.— P. J.— H. S. F. 

 — P W.— F. J. P.— C. H. O.— J. W. S.— P. T.— F. E.— M. 

 E. P.— E. F. L.— W. H. M.— A. B.— H. P.— H. E. G.— T. W. 

 P — T. E. S.— W. W. B.— F. S.— W. S.— J. R. H.— E. D.— 

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

 W. W. C— G. R.— J. S.— H. F.— B. P.— W. S.— \V. D. C— 

 E. P.— T. D. A. C— A. B.— E. D.— C H. G. B.— J. E. L.— 

 E A. M.— W. S.— A.— C. L. R.-Prof. W.— R. G. M.— H. F. 

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

 T . R , t._k. M. W. T— M. P. S.— F. W. W.-T. E— J. E. 

 E — R. S— C. C. S.— T. H. H.— Dr. B.— W. S. S— Prof. M. 

 — T. J. K.— T. W.— T. B. G.— T. S. B.-W. S.— A. J. K— 

 R. S.— etc, etc. 



