NA rURE 



[October 29, 1896 



FREE SATURDAY CLASSES FOR 

 TEACHERS. 



A Fit' 1 . I.., Iiauhers is litiiig given on S:nurd;iy mornings M 



Universii> i . Ih-i ly I'lof. Kaui, Pkahson, on Graphic Mc-thods. Thi: 

 Course cl.,;l iii.uiiK «iih the use of the Drawing-lioard in Elementary, 

 Geometri. iL Mhl \1.. li.uiical Teaching. 



Early apph. ;,iion sliould he made to Prof. Pears(in, at University 

 College, as there are only a few vacancies lef: Applicants should state 

 their tiualilicitions and experience. 



LECTURES ON CELLULOSE AT 

 UNIVERSITY COLLEGE. 



Mr. C. F. Cross, of the firm of Cross and r.i;\ an, will deliver a Course 

 of Fifteen Lectures, at University College, on Cellulose : the Chemistry of 

 the Vegetable Fibres, and of their industrial |>reparation and uses. The 

 Lectures will li. I,. Id ..n Friday evenings, from 7.15 too.jo, commencing on 

 FRIDAY . M i\ IMI'.FR 6. 



TheCir- «ill.i il is|)ecially with the Cellulose Group of Carbon Com- 

 pounds, ih. I. Ix , ox, iiiil: a very wide field, and will include Wood, Cotton, 

 Peat, Lignite. Coal, 1 extiles. Paper, Celhdoid, Artificial Silk, the Willesden 

 Process, and other industrial applications. 



Fee for Course, ;4i \s. (pay.able by Artisans in two instalments). 



NATURAL SCIENCE 



KEBLE C()LLE(;E, 



SCHOLARSHIP. 



OXFORD. 



A SCHOLAR.SHIP of the annual value of ;£6o, together with Laboratory 

 fees, not exceeding ;£20 per annum, will he aw.-irded at this College in 

 December i8g6. 



The Examination commences Tuesday, December 8. 



f.uli.iects : Chemistry or Biology, with Elementary Mechanics and Physics 

 for all Candidates, and Elementary Chemistrj- for those who offer Biology. 



For full particulars apply to W.Hatchett Iackson. Keble College, 

 Oxford. 



SWINDON AND NORTH WILTS 

 TECHNICAL SCHOOL. 



^ An ASSISTANT MASTER is leipiiied at once for the Organised 

 icience School. 



Candidates should state Age, Qualification, and Teaching experience. 



Commencing Salary, ^100 per annum. 



Apply St;CRETAKV, Technical School, Swindon. 



ALFRED JORGENSEN'S 



LABORATORY FOR THE PHYSIOLOGY AND 

 TECHNOLOGY OF FERMENTATION. 



COPENHAGEN, V. (Established i88i.) 



Studknts' Skssions. — Courses of Instruction in the Physio, 

 logy and Tecliuology of Fermentation for Beginners and Ad- 

 vanced Students, with particular regard to Hansen's System 

 for the Pure Cultivation and Analysis of Veast and the applica- 

 tion of selected pure Yeast types in practice. 



(i) Mould-fungi. {2) Forms of Transition between Mould-fungi and 



Saccharomyces Yeast-fungi. (3) Yeast-fungi ; Culture Yeast Types, Wild 



Yeasts, Disease Yeast. (4) Fermentation Bacteria. (5) Preparation of 



absolutely pure Cultures of Ye.ast-fungi. (6) Prep.-iration of Cultures on a 



'arge scale. (7) Comparative Experiments with Mass Culture, and Instruc- 



in in their Use in Practice (in Breweries, Distilleries, Wine Fermentation, 



). (8) Supervision of Fermentation Establishments. (9) Preservation of 



;cted Types of Yeast. (10) Instruction in the L^se of Yeast Propagating 



he English, French, Danish and Ge 



languages are used 



the 



action of Culture-Yeast Types 

 it Wine), Wild Yeasts (Dise.-ise 

 vhich .are supplied for use in 



he Laboratory possesses a 

 Breweries, Distilleries, Grape Wine, Fri 

 ;t), and Fermentation Bacteria, all of 

 aratoriesand in practice. 



als of Instruction :— Alfred Jorgensen : " Micro-Organi.smsand Fer- 

 311," new edition, 1893 (published by F. W. Lyon, Eastcheap 

 dings, London). French Edition (Sociit^ d Editions Scientiliques, 

 ,1894). Third German Edition (P. Parey, Berlin, 1892). 

 Chr. Hansen : " Practical Studies in Fermentation (Contributions to 

 ^ifehistory of Micro-Organisms)" (E. F. Spon, London, 1895). French 

 imi in the " Co'mptes rendus du Laboratoire de Carlsberg " (Hagerup, 

 inhagen). German Edition (R. Oldenbourg, Munich, 1890- 1895)) 

 ospectus gratis on application. - . 



le Laboratory h.as up to this d.ay been frequented by 380 Students from 

 among tliem by 41 English and American Students. 



Manufacturbr ok 



ELECTRICAL Ik PHYSICAL 



INSTRUMENTS. 



44 Hatton Garden, London. 

 Catalogues Free. 



THE ELECTRICAL 

 GENERAL ENGINEERING COLLEGE, 



SCHOOL OF SCIENCE. 



PENYWERN HOUSE, 2 and 4, PENYWERN JsOAD, 



EARL'S COURT, S.W. r 



Principai.— G. W. DE TUNZKLMANN, B.Sc, M.I.E.I.. » 



Senior-Instructok— C. CAPITQ, M.I.E.E., M.I.M B ^ 



Laboratories, Dynamo Room, Steam '"Engine, Engineering M'orkshop 



with Machine Tools, Pattern Shop, &c. / 



The College provides a Training for Electrical, Mechanical) Civi., and 

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

 istry', Biology, Geology, and Mineralogy, and Preliminary Training for 

 Students entering Cooper's Hill and the Central Institution. 



zoologicalYpecimens for dissection. 



JAMES HORNELL, BIOLOGICAL STATION. JERSEY. 

 WATKINS & DONCASTER, 



NATURALISTS, AND MANUFACTURERS OF ENTOMOLOGICAL AND OTHER 

 SCIENTIFIC APPLIANCES AND CABINETS. 



Plain Ring Nets, wire or cane, including Slick, is. :,</., 2i., -zs. 6(i. Fold- 

 ing Nets, 3J. 6ii., 4.V. Pocket Boxes, 6d., i)ii., is., u. 6ii. Zinc relaxing 

 Bo.xes, gii., u., is. 6d., 2i. Store Boxes, m. 6rf., 4J., si., is. Setting Boards, 

 flat or oval, from 5^'. to is. %d. Setting Houses. 9^. 6(('., 11s. 6d., 14s. 

 Breeding Cage, 2S. 6d., 4J., 55., 7^. 6ci. Botanical Cases, japanned double 

 tin, IS. 6d., 2S. gd., 3s. 6d., ^s. 6d., js. 6d. Botanical Paper, from is. id. 

 to 2S 2d. per quire. Insect Cases, 2S. 6d. to 11s. Forceps for removing 

 Insects, IS. 6d., 2s., 2s. 6d. per pair. Cabinet Cork. 7 by 34, is., is. ^d. per 

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

 Micro-lepidoptera, with English and Latin names, 1.1. 6d. Improved Pocket 

 Pupa-Dij;ger in leather sheath, x^. gd. Taxidermists' Companion, contain- 

 ing most necessary implements for skinning, 10^. 6d. ; Scalpels, with ebony 

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

 IS. ; Brass Blowpipes, 4«'., 6d. A large stock of British, European, anil 

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

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

 improved pattern), 2^. 6d. and 5^. each. 



A LARGE STOCK OF INSECTS AND BIRDS' EGGS. 



Cabinets —Special Shoui Room. For Particulars and Measurements see 

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

 Birds, Mammals, ifc, Piesen'ed and Mounted by First-class IVorkmen. 

 36 STRAND, LONDON W.C. (Five doors from Ch.aring Cross.) 



LIVING SPECIMENS FOR 

 THE MICROSCOPE. 



ids. Diatoms, Amoeba, Arcella, Actinosphaeriuin 

 Floscularia, Stephanoceros, Melicerta, and man; 

 Life. Price is. per Tube, Post Free. Helii 

 us, Rana, Anodon, &c., for Dissection purposes 



Volvox, Spirogyra, De 

 Vorticella, Stentor, Hydi 

 other Specimens of Poi 

 pomatia, Astacus, Amph 



THOMAS BOLTON, 



25 BALSALL HEATH ROAD, BIRMINGHAM. 



MARINE BIOLOGICAL ASSOCIATrON 

 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, Alcj-- 

 onium ; Horniipbora (preserved) ; Leptoplana ; Linens, Amphiporus ; Nereis, 

 Aphrodite, Arenicola, Lanice, Terebella ; Lepas, Bal.anus, Gammarus, 

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

 Bugula, Crisis, Pedicellina ; Hclothuria, Asterias, Ech 

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



For prices and more detailed lists apply to 



Biological Laboratory, Plymouth 



iieaone^ ircciciis, 

 ' ; Ascidia, Salpa 



THE DIRECTOR. 



•;iil9 



c\ 



