?20 



SCIENCE- GOSSIP 



NOTICES OF SOCIETIES. 



Ordinary meetings are marked f, excursions * ; names of persons 

 following excursions are of Conductors. Lantern Illustra- 

 tions^. 



South Loxdox Entomologtcal and Natural History 

 Society. 



March 13. — § " Entomological Localities, especially tlie New- 

 Forest." W. J. Lucas, B.A. 



SKLBCiRXE SOCIE'I'Y. 



March 7. — t " Our Footpaths and Commons, and how they were 

 obtained." B. A. Martin, F.Q.S. 



North London Natural History Society. 

 March' 11. — f " Heather." Miss B. Nicholson. 



„ 1 1.- 1 •' The New Star in Perseus." C. Nicholson, F.E.S. 



„ 25.— f " The Structure of some Organic Compounds." 

 M. Culpin. 



„ 27-31. — * Excursion to Selljorne, Hants. A. Bacot. 



Ham'pstead Sciextific Society. 



March 7. — f General Meeting. " Insects at Home and Abroad." 

 Martin Jacoby, F.E.S. 

 „ 12. — J Photographic Section. " Architectural Photo- 

 graphy." 

 „ 14.— t Natural History Section. "The Entomology of 

 Paris and its Neighbourhood." Rev. F. A. 

 Walker, D.D., F.L.S., F.E.S. 



EoYAL Institution op Great Britain. 



March 1. — f " Some Electrical Developments." Lord Eayleigh. 

 „ 1.— t " The Temperature of the Atmosphere." W. N. 



Shaw. 

 ,, 7.— f "Radio-Active Bodies" (in French). Professor 



H. Becquerel. 

 „ 8. — !'■■ Some Electrical Developments." Lord Rayleigh. 

 „ 11. — t " Mimicry in Insects " Professor E. B. Poultoo. 

 „ 14. — f" Magnetism in Transitu." Professor S. P. 



Thompson. 

 ., 15.— f ■' Some Electrical Developments." Lord Rayleigh. 

 ■ ., 18. — t " Mimicry in Insects." IProtessor E. B. Poulton. 

 ., 21. — f " Recent Developments in Colouring Matter" (in 



English). Professor 0. N. Witt. 

 ,, 22. — t " Some Electrical Developments." Lord Rayleigh. 



Geologists' Association, London. 



March 7.— t "The Zones of the White Chalk of the English 



Coast.— III. Devonshire." Dr. A. W. Rowe, 



PG.S. 

 „ 15. — * British Museum, Natural History, Cromwell Road, 



S.W. Br. Arthur Smith Woodward, F.R.S., etc. 



NOTICES TO COREESPONDENTS. 



To Correspondents and Exchangers.— Science-Gossip is 

 published on the 25th of each month. All notes or short com- 

 munications should reach us not later than the 18th of the month 

 for insertion in the following number. No commanioatlons can 

 be inserted or noticed without full name and address of writer. 

 Notices of changes of address admitted free. 



Editorial Communications, articles, books for review, instru- 

 ments for notice, specimens for identification, etc., to be addressed 

 to John T. Carrington, 110 Strand, London, W.C. 



Business Communications. — All business communications 

 relating to Science-Gossip must be- addressed to the Manager, 

 Science-Gossip, 110 Strand, London. 



Subscriptions. — The volumes of Scienx'e-Gossip begin with 

 the Jane numbers, but Subscriptions may commence with any 

 •number, at the rate of 6s. 6d. for twelve months (including 

 postage), and should be remitted to the Manager, Science- 

 Gossip, 110 Strand, London, W.C. 



The Editor will be pleased to answer questions and name 

 specimens through the Correspondence column of the magazine. 

 Specimens, in good condition, of not more than three species to 

 be sent at one time, carriage paid. Duplicates only to be sent, 

 which will not be returned. The specimens must have identify- 

 ing numbers attached, together with locality, date, and par- 

 ticulars of capture. 



No'ncE. — Contributors are requested to strictly observe the 

 following rules. All contributions must be clearly written on 

 one side of the paper only. Words intended to be printed in 

 italics should be marked under with a single line. Generic 

 names must be given in full, excepting where used immediately 

 before. Capitals may only be used for generic, and not specific 

 names. Scientific names and names of places to be written in 

 round hand. 



The Editor is not responsible for unused MSS., neither can he 

 undertake to return them unless accompanied with stamps for 

 return postage. 



EXCHANGES. 



Notice. — E.xchanges extending to thirty words (including 

 name and address) admitted free ; but additional words must be 

 prepaid at the rate of threepence for every seven words or less. 



Fluviatile Shells.— Offered, the new- British shells, Palu- 

 destrina taylori and Physa lieterostropha ; also PI. dilatatus, V. 

 moulinsiana, and other good shells. Wanted, foreign Physa, 

 Hydrobidae, etc.— Fred Taylor, 42 Landseer Street, Oldham. 



Science-Gossip offered for Knowledge. Each posted ten days 

 old, or vice versa.— W. C. Brown, Appleby, Doncaster. 



Marine Objects. — Monthly or weekly supply. Parcel fresh- 

 gathered seaweeds, zoophytes, etc., oifered in exchange for 

 anything useful to an amateur mechanic, antiquary, or 

 naturalist. — W. Balmbra, Warkworth Station, Northumberland 



Diptera. — Wanted, specimens from any part of the world. 

 Many named species offered in exchange. — E. Brunetti, 

 103 Brixton Road, London, S.W. 



Marine Hydrozoa (Zoophytes) wanted in exchange. Must 

 have polyps extruded, and be mounted without pressure in 

 balsam or other suitable preservative.— .T. W. Williams, F.L.S., 

 128 Mansfield Road, Haverstock Hill, N.W. 



Science-Gossip from 1880 to 1900, first four vol', bound in 

 two, cloth; rest in parts, of which six missing: clean, good 

 condition. What olfers ? — Dr. Mayor, Heaton Chapel, Stockport. 



Wanted. — Good specimens of land and freshwater shells 

 foreign to the British Isles. — R. Harrison, 7 Foulser Road, Upper 

 Tooting, London, S.W. 



Botanical Microscopic slides wanted in exchange for 

 others. Will send list.— T. D. Schofield, Alderley Edge. 



Wanted. — Unbound parts of Ann Pratt's " Wild Flowers, 

 Grasses, etc." Offered in exchange Science books. — A. Nichol- 

 son, 67 Greenbank Road, Darlington. 



Wanted. — Crustacea, star-fish, and sea-urchins, either fresh 

 or dry. Good exchange. — -H. Parritt, 8 Whitehall Park, 

 London, N. 



Helix lactea from Spain ; also many species and varieties 

 of British non-marine shells ; exchange for British species and 

 varieties not in collection.— C. S. Coles, Hambledon, Cosham, 

 Hants. 



CHANG-E OF ADDRESS. 



E. Brunetti, from 11 Mostvn Road to 103 Brixton Road, 

 London, S.W. 



NOTICE. 



Subscriptions (6s. 6d. per annum) may be paid 

 at any time. The postage of SciENGE-GossiP is 

 really one penny, but only half that rate is charged 

 to subscribers. 



CONTENTS. 



PAGE 



A Curious Chinese Fish. By J. C. Kershaw, F.E.S. 



Illustrated 289 



Notes on Surrey Plants. By Samuel Arthur 



Chambers 290 



A Dipterous Fly. By Walter Wesche, F.R.M.S. 



Illustrated .. .'. ' "291 



Instinct. By R. Dickson-Brysox, B.A., F.P.S., F.R.As.S. 293 



Our Cockroaches. By E..J. Burgess Sopp, F.R.Met.Soc, 



F.E.S 235 



An Introduction to British Spiders. By Frank 



Percy Smith. Illustrated 297 



Butterflies op the Palaearctic Region. By Henry 



Chajiles Lang, M.D., F.E.S 299 



Books to Read. Illustrated .. .. ' 301 



Science iGossiP 304 



Notes AND Queries. IUuslni/(d .. 307 



Microscopy, ijiusi rated 30h 



Geology 313 



Chemistry 314 



Physics 315 



Astronomy 316 



Photography 317 



mollusca 318 



Botany. Illustrated 318 



Notices — Exchanges 320 



