clxxxvi 



NATURE 



[October 15, 1896 



SALTERS' COMPANY, 



RESEARCH FKLLOWSHIP IN CHKM ISTK V. 

 The Cou/oflhe Sallur..' Company will in November iicM wocced to the 

 Ekction ot& RESEARCH KELLLOW in CHEMISTRY. The Fdlow- 

 iihip is of Ae Annual Valueof ^loo, and is Icnalile in ihe Research Labora- 

 tory of tl/ Pharmaceutical Society of Great Britain. 



Appli/tions should be sent to the Recisikak ok thb Phakm\ceutical 

 SociEj/ 17 Bloomsbury Square, l<efore the 24th instant. 

 Fur^fe'' particulars may he obtained from 



E. LIONEL SCOTT, Clerk to the Salters' Company, 

 .Salteis' Hall, E.C. 



the electrical 

 :neral engineering college, 

 school of science. 



iNYWERN HOUSE, 2 and 4, PENYWERN ROAD 

 EARL'S COURT, S.W. 

 Principal— G. W. de TUNZELMANN, B..Sc., M.I E E 

 Senior-Instructor— C. CAPITO, M.LE.E., M.LM E. 

 Laboratories, Dynamo Room, Steam Engine, Engineering Workshop 

 fwith Machine Tools, Pattern Shop, &c. » e. f 



i'?^^ College provides a Training for Electrical, Mechanical, Civil, and 

 Mining Engineers, for Science Students in Mathematics, Physics Chem- 

 \ ^stry. Biology, Geology, and Mineralogy, and Preliminary Training for 

 Students entering Cooper's Hill and the Central Institution. 



CITY AND GUILDS OF LONDON 

 ■INSTITUTE. 



In cocsequence of Mr. Riioues' appointment at the Royal Technical 

 Institute, .Salford there is a VACANCY in the Department of PHYSICS 

 and ELECTRICAL ENGINEERING .it the a?yandGuildf Central 

 Technical College for an ASSISTANT, vvith a good knowledge of Mathe- 

 h some Expel ience in Teaching. 



JTiatical and Experimental Physics, 

 Salary commencing at ^150 per Annum. 



Apply, in the first instance, by letter to Prof. Ay 

 ■College, Exhibition Road, London, S.W. 



, Cen 



al Technical 



JOHN WATNEY, Honorary Secretary. 



LONDON B.Sc. and INTER-SCIENCE 



HONOURS BOTANY.-A special Course of Lectures for the above 

 Examinations will begin the First Week in November. Practical and 

 Theoret.ca Work For full details, apply R. C B. Kerin, B.A. 

 Lond., Carlyon College, 55 and 56 Chancery Lane, W.C. 



THE GEORGE HENRY LEWES 



STUDENTSHIP will become Vacant on January 1. 1897. Appli- 

 cations should be made to Prof. M. Foster, New Museum Cam- 

 bndge, not laler than December i, 1896. 



ASTRONOMICAL TELESCOPE FOR 



DlSP0.SAI..-4i" clear aperture, 7 powers, riijid stand, tangent and 



hnder, 3 cases; faultless condition. Cost over /:2oo — 



■Verax," 174 Gloucester Terrace, Hyde Park 



.\ppo 



OPTICAL & SCIENTIFIC INSTRUMENTS. 



Spectrometers, Spectroscopes, Goniometers, Cathetometers, Optical 

 •Benches, &c., &c. Instruments for special purposes constructed to Clients' 

 own designs. Price List on afipluation. 



W. WILSON (formerly Foreman at Messrs. Elliott Bros ) 

 56 Crog.sland Road, Chalk Farm, London, N.W. 



Manufacturer of 

 ELECTRICAL & PHYSICAL 



INSTRUMENTS, 



44 Hatton Garden, London. 



Catalogues Free. 



GEOLOGY AND PHYSIOGRAPHY. 



COLLECTIONS AND MICROSCOPIC SLIDES. 



New Catalogues of Minerals, Sic, now re.ady. 

 Collections of Specimens -Minerals, Fossils, and Rocks. 

 Minerals for Chemical Work, &c. 

 Physiography Collections. 

 Geological Apparatus and Appliances. 

 New Supplementary List of Microscopic Sections. 

 List of Rock Specimens. 



,, Geological Ha 



,. Cabinets. 



WATKINS & DONCASTER, 



NATURALISTS, AND MANUFACTUREHS OF ENTOMOLOGICAL AND OTHER 



SCIENTIFIC APPLIANCES AND CABINETS. 

 . Plain Ring Nets, wire or cane, including Stick, i^. 3,/., ,s., ,s. M. Fold. 

 ingNets 3J. 6./., 4^. Pocket Boxes, 6,/., grf., ,s., ,s. (,d. Zinc rela^cing 

 Boxes, 9,/. IS., i:r. (,d 2s. Store Boxes, ,j. M.,^s.,-,s.,(,s. .Setting Boards, 

 flat or oval, from 5,/ to is. id. Setting Houses, 91. 6,f., iii. W., Mi! 

 Breeding Cage, 2i. M., t,s., sj., is. 6,1. Botanical Ca.ses, japanned double 

 tm, IS. 6jf., 2S. gd., 3s. 6d., 4s. 6d., ys. 6d. Botanical Paper, from is. id 

 to 2S. id. per quire. Insect Cases, 2j. 6d. to lis. Forceps for removing 

 Insects ri. 6d.js aJ. 6,/. per pair. Cabinet Cork, 7 by 3!, is., is. id. per 

 doz. Nested Willow.chip Boxes, 4 doz. 8rf.-Our new Label List of British 

 Micro-lepuloptera, with Lnglish and Latin names, is. 6d. Improved Pocket 

 Pupa-Digger in leather sheath, is. gd. Taxidermists' Companion contain^ 

 ing most necessary implements for spinning, los. 6d. ; Scalpels, with ebony 

 handles, is. 3d. ; Fine Pointed Scissors, 2s. per pair ; Egg Drills, 2d., 3d 

 IS. ; Brass Blowpipes, ^d., 6d. A large stock of British, European, and 

 Exotic Lepidoptera, Coleoptera, and Birds' Eggs —Entomological Pins of 

 every kind.— Benzoline and Oil Lanterns for sugaring, &c. (new and 

 improved pattern), 2S. 6d. and 5s. each. 



A LARGE STOCK OF INSECTS AND BIRDS' EGGS 

 Cabinets —Special Shorn Room. For Paniculars and Measurements see 

 our Catalogue (66 pp.), which will be sent post free on application 

 Birds, Mammals, b'c. Preserved and Mounted by First-class It^arlcmen 

 36 STRAND, LONDON W.C. (Five doors from Charing Cros.s.) 



ZOOLOGICAL SPECIMENS FOR DISSECTION. 



Scyiiinni, loti. each ; Ss. doj 

 Amphio.vus, Qti. each. 

 Astaats, 9./.'each. 

 Anodon, gd. each. 

 Rana^ bd. each. 



Noctiluca, \s. 3d. per lube. 

 Grantia, is. -^d. per tube. 

 Sycon, IS. ^d. per tube. 

 Medusotds, i^-. -^d. per tube. 



Dif. each. 



Coryne, is. per lube. 

 Obelia, IS. per tube. 

 Ascaris (large), Sd. each. 

 Cerebraiulus, is. 6d. eact 

 Nereis, 6d. each. 

 Arenicola, 6d. each. 

 Sagitta, i^. per tube. 



RKDUCTION 



, peiffcl condition guarat 

 with prices ; 



Sipunculus, 3*. to 4^, doz. 



Echinus (large)^ loj. doz. 



Cucumaria (large), is. ^d. 



Apus. IS. each. 



Nebalia, is. per tube. 



Gammarus, is. per tube. 



Scorpio, i.y. to is. 6d. each 



Scolopendra, is. 6d each. 



Aplysia, 8*^. to iO(/. each. 



Haliotis, 8^/. each. 



Loligo media, ic«/. each. 



Mya, lod. each. 



Pedicellina. is. per tube. 



Salpa, IS. 6d. per tube 



Ascidia, 8d. each. 



Raia, IS. 10 2s. 6d. each, 



Lacerta, lod. each. 



ON LARGKR QUANTITIES. 



JAMES HORNELL, BIOLOGICAL STATION. JERSEY. 



COLLECTIONS OF MINERALS, 

 ROCKS, OR FOSSILS, 



, Prospectors, &c., and to 



Catalogue of Minerals for sele. 





JAMES R. GREGORY & CO. 



STORKS AND OFFICES: 



1 KELSO PLACE, KENSINGTON, W. 



For the Use of Students, Science Teache 

 Illustrate the leading Text-books, i 

 50 Specimens, 10s. 6d.; lOO do., ais.; 200 do., 421 



Netv Price List of Minerals, Racks, and Stratigraphical Series 



of Fossils, Post Free. 



ROCK SECTIONS for the MICROSCOPE, from is. 6d. each, Post Free 



Catalogues Gratis. 



CABINETS, GLASS-CAPPED BOXES, TRAVS, HAMMERS, &c., 



always in stock. 



THOMAS D. RUSSELL 



78 NE\VG.A.TE STREET, LONDON, E.C. 



LIVING" SPECIMENS FOR~ 

 THE MICROSCOPE. 



Volvox, Spirogyra, Desmids, Diatoms, Amoeba, Arcella, Actinosphaerium, 

 Vorticella, Stentor, Hydra, Floscularia, Stephanoceros, Melicerta, and many 

 other Specimens of Pond Life. Price is. per Tube, Post Free. Helix 

 pomatia, Ast.icus, Ainphioxus, Rana, Anodon, S:c., for Dissection purposes. 



THOMAS BOLTON, 



25 BALSALL HEATH ROAD, BIRMINGHAM. 



MARINE BIOLOGICAL ASSOCIATION 

 OF THE UNITED KINGDOM. 



THE LABORATORY, PLYMOUTH. 



The following animals can always be supplied, either living 

 or preserved by the best methods ;— 



Sycon ; Clava, Obelia, Sertularia ; Actinia, Tealia, Caryophyllia, Alcy- 

 onium ; Hormiphora (preserved) ; Leptoplana ; Lineus, Amphiporus ; Nereis, 

 Aphrodite, Arenicola, Lanice, Terebella ; Lepas, Balanus, Gammarus 

 Ligia, Mysis, Nebalia, Carcinus; Patella, Buccinum, Eledone, Pectens, 

 Bugula, Crisia, Pedicellina; Hclothuria, Asterias, Echinus; Ascidia, Salpa 

 (preserved), Scyllium, Raia, &c., &c. 



For prices and more detailed lists apply to 



Biological Laboratory, Plymouth. THE DIRECTOR. 



