A WEEKLY ILLUSTRATED JOURNAL OF SCIENCE. 
“To the solid ground 
ae Nature trusts the mind which builds for wal 
foe he lel ce Se 
No. .2312, VOL. 92) 
THURSDAY, FEBRUARY 19, 
1914 [PRIcE SIXPENCE 
{All Rights Reserved. 
Registered as a Newspaper at the General Post Office. | 
NEWTON & 60.S 
“ ACADEMY” 
SCIENCE LANTERN 
A Marvel of Value. 
Illustrated Catalogue Post Free 
on request. 
72 WIGMORE STREET LONDON W. 
THE HANDLE 
LONDON MODEL. 
This is a new model, in which 
the limb is made so as to form 
a convenient handle for lifting 
the microscope. Otherwise it 
is similar to the ordinary 
London model. 
No. 1325. Stand, incase, 
£3 56 
No. 1329. Stand, inease, 
with spiral focussing 
substage 7h: \O-O 
No. 364A, Eye- 
piece ... 
No. 801. irds 
Object Glass 
No. 803. jth 
Object Glass 110 O 
Fuct Particutars oF 
R. & J. BECK, 
68 Cornhill, E.C. 
REYNOLDS & BRANSON, Ltda. 
“RYSTOS” MICROSCOPE 
PLATFORM 
Gold Medals :— 
London, 1908. 
Allahabad, 1911. 
Grand Prix,*Turin, 1911, 
2 Medals, York, 1912. 
For use with the Stroud & Rendell Science Lanterns. This platform 
is adjustable, so that any ordinary microscope (the draw tube being 
removed) can be used for projection work. The platform can be raised 
or lowered in order that the optical centre of the microscope may 
coincide with that of the lantern.. io ey 
Microscope as figured, with eyepiece and1” and yr objectives... 78 0 
3” objective for projection purposes .. 100 
Catalogue of Optical Lanterns and descriptive circular of Accessory 
Apparatus for the S. & R. Lanterns, post free. 
124 COMMERCIAL STREET, LEEDS... 
ANEMOMETER 
recording the PRESSURE 
and the DIRECTION 
of the wind simultaneously 
upon one chart. 
Price £35. 
Descriptive pamphlet, and 
list of ‘* Meteorological 
Instruments” free on 
request. 
NEGRETTI & ZAMBRA, 
38 Holborn Viaduct, London, E.C. 
45 Cornhill, E.C. 
122 Regent St., W. 
City Branch: 
West End: 
