Tian INstiey 
“ 
61916 
~ No. 2445. VoL. 98] 
THURSDAY, SEPTEMBER 7, 1916 
Registered as a Newspaper at the General Post Office.] 
BALANCES & WEIGHTS 
BUY DIRECT FROM 
F E.BECKER &CO,#ATT0N WALL 
QW. &J.GEORGE. LTD., SUCC#= LONDON, E .C. 
i Jou J. GRIFFIN & sox: 
MAKERS OF 
HIGH-CLASS 
PHYSICAL APPARATUS 
Wem: 
POCKET D.V. SPECTROSCOPE 
With plain slit, 26/6; with adjustable slit, 33/- 
| RAINBAND SPECTROSCOPE, 54/- 
Kemble Street, KINGSWAY, 
LONDON, W.C. 
BEAKERS, BOATS, 
CAPSULES, CONDENSERS, 
specialise 
in the manu- 
facture of 
apparatus to cus- 
tomers’ own designs. 
New prices and sample free 
on application to 
THE SILICA SYNDICATE, Ltd., 
82 HATTON CARDEN, 
LONDON, E.C. 
Telephone: Holliorn 6380. 
A New Barograph—THE “* JORDAN.” 
(Regd. Design 62871.) 
Shows at. a glance the movements of the barometer during 
the preceding days. 
Descriptive Leaflet post free on application to 
NEGRETTI & ZAMBRA, 
38 HOLBORN VIADUCT, E.C.; 
45 CORNBILL, E.C.; 122 REGENT ST., W. 
