Ixx 



NA TURE 



[June 15, 1905 



ELECTRICAL MEASURING 

 INSTRUMENTS. 



IT I I STJiiTri) TTST 7 OST I Hh F 



THE 



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 occupy a space of only 12 12 14 in. high. 



Full liiiiliiitlnis oil (ijiiiliratiiiii. 



ISENTHAL & CO., 85 Mortimer St., London, W. 



Contractor! to the Adinirally, War, Iniiia, and Colonial Offices, &-V. 



WOODHOUSE 

 INCLINED PLANE. 



Price 25/- 



TOWNSON & MERCER, 



34 CAMOMILE STREET, E.C. 



EXPERIMENTAL GLASS BLOWING 

 FOR RESEARCH WORK 



Correctly and promptly carried out for Laboratories and Scientific Men from Roug-h Sketch, 



as executed by us for many years for London University, Victoria University, Manchester, 



and the principal Institutes throug-hout the Kingdom. 



LISTS : ^Chemical Apparatus — Chemicals — Balances — Assay — Ttierrnometers — Electrical 



Apparatus— Focus Tubes, X-Bay, and Wireless Telegraphy Apparatus—or SPECIAL 



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C. E. MULLER, ORME & CO., Ltd., USTlGH HOLBORN, LONDON. 



THE LONDON STEREOSCOPIC COOIPONY'S 



LATEST INTRODUCTION 



Cbc "m\%r Reflex Camera 



For Day-Light Loading Flat Films or Plates. 



The Ideal Camera for Photographing Figure Studies, Animals, Natural History 



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The picture can be viewed the full size and focussed right up to the moment 



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I'linted by Richard Clay and Sons, Limited, at 7 & b Bread Street Hill, (Jueen Victoria Street, in the City of London, and published by Macmilla 

 ANP Co., LiMiTED,at St. Martin'sSti'eet, London, W.C., and The Macmillan Company, 66 Fifth Avenue, New York.— Thursday, June 15, 1905. 



