SCIEXCE- G OSSIP. 



NOTICES OF SOCIETIES. 



Ordinary m- - -: <f persons 



foUoicing excursion- are. of Conductors. Lantern Illustra- 

 tions §. 

 Geologists' a-so- iatiox. 



March l.-f "The Post-Pliocene Non-Marine Mollusca of the 

 South of England." A. S. Kennard and B. B. 

 Woodward. F.L.S.. &rc. 

 „ 1.— J "The Pleistocene Fauna of West Wittering, 



- ---:■:.'" J. P. Johnson. 

 ,. 2. — * Natural Historv Museum, Cromwell Boad. Henrv 



Woodwarl. F.R.S., F.GJS. 

 ... 23. — Roval College of Surgeons, Lincoln's Inn Fields. 

 Professor Charles Stewart, F.R.S. 



Manchester Museum, Owen; College. 



March 2. — J " Monotremes." Professor S. J. Hickson. 



9. — f " Our Neolithic Ancestors." Professor W. Boyd 

 ' Dawkins, F.R.S. 

 10. — r K Hvaena-Uens in Britain." Professor W. Bovd 

 Dawkins, F.R.S. 



PRESTO X SCIENTIFIC SOCIETY. 



March 6. — f " Seeds and Germination." Miss Holden. 



13. — t K Architecture and the Evolution of the British 

 Nation " E. H. Turner, A.C.A. 

 „ 20.— f " Nuts." H. Barboor. 



27. — f •• Liquii .Air." R. Wallace Stewart, D.Sc. 



North Londox Natural History So<" iett. 

 March 7.— f Short Papers on " Scientific Progress in 1900." 

 .. 21.- ? '• Pictures of Bird-Life.' O. G. Pike. 

 ■ '.—* Tbit to Epping Forest Museum. 



South Londox Extomological asd Natural History. 



Society. 

 March 14. — § " The Life History of a Dragon-fiy." W. J. 

 Lucas, E.A.. F.E.S. 

 „ 28. — " The Lepidoptera of the Guildford District." 

 E. E. Bishop. 



Blrebeck Natural History Society. 

 March 9. — * Geological Ramble round HfonL Martin 

 Hinton. 

 ,, 9. — t " The Palaeolithic Inhabitants of the Th ames 

 Valley." Martin A. C. Hinton. 



Hull Sciextific axd Field Naturalists' Clue. 



March 6. — 5 " The Grave-Mounds of the Yorkshire Wolds and 



their Contents." T. Sheppard, F.G.S. 

 ., 20. — S " A Trip to Portugal to see the Eclipse of May 28. 



1900." Rev. H. P. Slade, M.B.W.A. 



Selborxe Society. 



March 7. — S •' The Wealden Formation and its Wonderful Con- 

 tents." E. A. Martin. F.G.S. 



Lambeth Field Club axd Sciexttfic Society. 



March 4. — ? " Early English Architecture."' O. H. Dedman. 



„ 16. — * Visit to Westminster Abbey. E. W. Harvey 

 Piper. 



-„ 18. — " A Chat on the Mycetozoa." F. W. Evens. 



Streatham Science Society. 

 March 2. — f " British Beptiies. 

 .. 16. — j " Bombyces." 



M. G. Palmer. 

 P. Humm. 



NOTICES TO COEEESPOMJEXTS. 



To Correspoxdexts Axn Ex> hangers. — Sc rexc e-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 communications can 

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

 Notices of changes of address admitted free. 



Business Communications. — All business communications 

 relating to Scdzxc e-Gossd? most be addressed to the Manager. 

 S'Ience-Gossip, 110 Strand. London. 



Subscbiptioxs. — Tne volumes of Science-Gossip begin with 

 the June Dumbers. 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, Sctexce- 

 Gossip, 110 Strand. London, W.C 



Editorl\l Commuxk attoxs, articles, books for review, instrn - 

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

 to Johx T. Carringtox, 110 Strand, London, W.C. 



Notice. — Contributors are reqnested 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. 



ANSWEBS TO CORRE^PuXDEXT^. 



J. R. (Beith i. — The specimen enclosed is one of the small 

 tortoisestieU butterfly (Vanessa urticae). It is not unusual 

 to find them in winter, if disturbed, as they hibernate in the 

 imago or perfect state. 



C. E. S. (London).— We fear you will not obtain, at the price, 

 all you require. Consult for trees, in the reading-room at the 

 British Museum, Bloomsbury, Loudon's '•Arboretum et Fructi- 

 cetum Britannicum : or, Trees and Shrubs of Britain." It costs 

 £4 to buy. To give a list of insects inhabiting each would consti- 

 tute a great work : so you had better consult books on the 

 different orders of insects inhabiting Britain with regard to 

 their arboreal habits. 



EXCHANGES. 



Notice. — Exchanges 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. 



Wanted to exchange, Kodak or J-pL Mahogany Stand 

 Camera, for a 3- or 4-wick Oil Lantern. — A. Nicholson, 67 Green- 

 bank Boad, Darlington. 



Wanted, a Miniature Spectroscope, with adjustable slit. 

 Offered, a good J-inch micro-objective — F. Compton, care of 

 Science-Gossip Office, 110 Strand, W.C. 



Offered, good clutches of curlews', arctic terns', stockdoves' 

 (C. oenas), and other eggs. Wanted, woodlark, black guillemot, 

 woodpeckers', and many others. — E. G. Potter, 14 Bootham 

 Crescent, York. 



"European" Butterflies and Moths," W. F. Kirby, Parts 1-43, 

 in 6d. parts : "European Ferns," James Britten. Parts 1-26. in 

 7d. parts. Exchange What offer? Hand-camera preferred. — 

 E. -. Sugden, 48 Victoria Road N., Sonthsea. 



Wanted, about fifty each of Periplaneta americana and 

 Blatta orientalis ; also some larvae of cockchafers, alive or dead, 

 preferably the former. — Frederick J. Bridgman, 4 Avenue Road, 

 Highgate. 



Wasted. London Catalogue. Ed. EX.. Nos. 6, 89, 136, 181, 

 297, 342. etc. Offered, 264, 298, 331, 716, 826, 833,870,1186: 

 many others. Lists exchanged. — A. Hosking, 48 Norwich Street, 

 Cambridge. 



Offered, magazine hand-camera, " Zeus " : good condition : 

 cost when new 46s. ; in exchange for good collection of 

 foreign stamps. — R. Clapperton, 23 Albert Place, Galashiels. 



Fossils.— Crag, London Clay, Upper and Lower Greensand, 

 and Wealden wanted in exchange for Palaeozoic and Jurassic 

 species. — Dr. Brendon Gubbin, 15 Redland Grove, Bristol. 



Offered. Exotic Butterflies, Ornith. miranda M dohertyi, 

 croesus (both sexes of each) ; also fine specimens in papers from 

 Mexico, Pern, Brazil, and Australia, in exchange for other 

 exotic diumals.— W. Dannatt, Donnington, Vanbmgh Park, 

 Blackheath. S.E. 



Fossil.-?. — Permian and Jurassic duplicates offered in ex- 

 change for others. List. — Harold Tarbuck, Land and Mine 

 Surveyor, The Chestnuts, Ryhope, rid Sunderland. 



Offered, Wray's 6§"x5" RJL Lens, with extra tube to con- 

 vert into 10" x 8". Wide angle, new condition, in part ex- 

 change for Watson's " Fram " or " Student's " microscope stand. 

 — Thomas Peters, 45 Lord Street, Leigh, Lanes. 



CONTENTS. 



PAGE 



Some British DrvrxG Beetles. By E. J. Burgess Sopp, 



FJt.Met.Soc. Illustrated 289 



Brit.sh Freshwater Mites. By C. F. George, M.R.C.S. 293 

 Experiences re Floattxg Foramtxtfera. By Dr. G. 



H. Bryan. F.R.S 296 



Arsenic axd Arsenic-Eaters. By C. A. Mitchell, B.A. 29s 

 Butterflies of the Palaf arctic Begiox. By Hexry 



Charles Laxg, MJ). must rated .. ..299 

 Reptiles ix Winter. By Gerald Leightox, M.B. .. 300 

 Laxd axd Freshwater Mollusca of Hampshire. 

 By Lionel E. Adams, B.A., assisted by B. B. Wood- 

 ward. F.L.S... 



Ax Introduction to British Spiders. By Fraxk 



Pfrcy Smith. must rated .. .. - .. 303 



Mechanics of Coxductiox of Sap. By Harold A. 



Haig 305 



Irish Plant Names. By John H Barbour, M.B. .. 306 

 Books to Bead. Illustrated — Photography .. 307, 309 

 Science Gossip — Microscopy. Illustrated .. .. 311. 313 



Notes axd Queries— Astronomy 316, 317 



Geology — Notices axd Exchaxges 319. 32m 



