Vay! 
VO9I 
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A WEEKLY ILLUSTRATED JOURNAL OF SCIENCBDY 25 191i 
“To the solid ground 
i] 
Of Nature trusts the mind which builds for aye.''-—WoRDSWORTH. 4 
No. 2298, VOL. 92] THURSDAY, NOVEMBER 13, 1913 . 
[PRIcE SIXPENCE 
Registered as a Newspaper at the General Post Office.) 
(All Rights Reserved. 
Simple Cyroscopes 
from 10/6 
Telegrams : ‘‘ Newtobar 
London.” 
Established 
over 200 Years. 
Illustrated Price List of Gyroscopes 3 : 
to be had post free from “Eats so 
NEWTON G&G CO., Opticians to.H.M. King Ceorge V. 
72 WIGMORE STREET, LONDON, W. 
NEW ‘LONDON’ 
MICROSCOPE. 
THE HANDLE MODEL WITH 
LARGE BASE. 
FINISHED IN BLACK ENAMEL. 
This new model of the London Student's 
Microscope has an extra large and heavy 
base, giving it great stability. 
It is on the Handle 
Model and the illus- 
tration shows its con- 
venient pattern. 
£ 
No. 1326 Stand...3 1 
1» 3644 Eyepiece 
»» 802 #” Object 
Giaeee.... 1 
»» 804 4” Object 
Glass 
» 392A Double 
Nosepiece 
No. 1328 Stand with 
focussing substage,£4.7.6 
(as illustration). 
R, & J. BECK, Ltd. 
68 CORNHILL, LONDON, E.C. 
| Government 
REYNOLDS & BRANSON, Ltd., 
Chemical and Scientific Instrument Makers to His Majesty’s 
(Indian, Home, and _ Colonial), Laboratory 
Furnishers and Manufacturing Chemists. 
**Rystos” Bench, 
showing bottles 
with enamelled 
labels on eachside. 
One set of bottles re- 
quired for each four 
Students as supplied 
to the Modern School, 
Bedford, &c. 
CHEMICAL, PHYSICAL, and TECHNICAL LABORATORIES 
Fully Equipped with BENCHES, FUME CHAMBERS, &c. 4 
INSTITUTIONS EQUIPPED :— 
The Girls’ High Schools at Barnsley, Beverley, Doncaster, Leeds and 
Nuneaton ; Radley College, Oxford ; The Schools, Shrewsbury ; Wellington 
College, Berks ; St. Mary’s College, Winchester ; the Science Laboratories 
at the Grammar School, Dunstable; Laboratories at Messrs. Brunner, 
Mond & Co., Ltd., Northwich, Cheshire ; the National Physical Labora- 
tory, Teddington ; Transvaal Dept. of Agriculture ; (Experimental Farm), 
South Africa; The Technical Schools, Morley and Yeadon; Imperial 
Service College, Windsor; Batley Grammar School, Leeds University 
(Agricultural and Leather Depts.) ; and many others. 
Catalogue. of Chemical and Physical Apparatus and Chemicals, 550 pp. 
and 1,500 Illustrations, post free on application. 
Designs of Benches and Fittings to suit all requirements. 
14 COMMERCIAL STREET, LEEDS. 
The 
“HORTICULTURAL 
HYGROMETER” 
gives warning 
of probable 
PR’ SF: 
Price £1 1 0 
Description, and Price List oy 
Thermometers, Gc., sent free. 
NEGRETTI & ZAMBRA, 
38 Holborn Viaduct, London, E.C. 
City Branch: 45 Cornhill, E.C. 
West End: 122 Regent St., W. 
