FET 16 1914 
A WEEKLY ILLUSTRATED JOURNAL OF SCIEN 
“To the solid ground 
7 Uy 
; eAtional Muse 
Of Nature trusts the mind which builds for aye.’-—WoRDSWORTH. 
No. 2305, VOL. 92] 
THURSDAY, JANI UARY 1, 
IQI4 [Price SIXPENCE 
~\ Registered as a Newspaper at the ‘zeneral Post Office.) 
{All Rights Reserved. 
BUY DIRECT FROM 
F E.BECKER & CO_HATTON WALL, 
(W.&J.GEORGE, LTD., SUCC®=) LONDON, E .C. 
Joun J. GRIFFIN & SONS, L” 
Kemble St., KINGSWAY, LONDON, W.C. 
THE— 
(C. V. Boys's Patent.) e 
For By Sci Liquid Films. Vi 
Marvellous Unique 
Colour- Effects 
combinations of 
of Infinite Wonderful 
Variety. Beauty. 
Price 25/- in United Kingdom: 4f- 
Including 2 Bottles of special Soap Solution and Full Instructions. 
A NEW CHEAP FORM. 
Price B/G Pos'age 4d. Extra Bottles of Solution, 6d. 
Leitz 
NEW BINOCULAR 
MICROSCOPE 
suitable for ordinary objectives, from 
the lowest to the HIGHEST POWERS, 
including oil immersion objectives. 
Particulars may be had on application 
for Leaflet No. 20, post free. 
18 BLOOMSBURY SQUARE, W.C. 
(A fev doors from the British Museum). 
| Write 
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List of 
“Gifts. 
Many of our Scientific Instruments 
are useful, handsome, and acceptable 
NEW YEAR GIFTS. 
Recording Barometers from £4 4s. to £27 10s. 
NEGRETTI & ZAMBRA, 
38 Holborn Viaduct, London, E.C. 
City Branch: 45 Cornhill, E.C. 
West End: 122 Regent St, W. 
