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A WEEKLY ILLUSTRATED JOURNAL OF SCIEN Btional Musev>” 
“To the solid Nee So Eitional 
\ 
al Must 
Of Nature trusts the mind which builds for aye.’’—WorpDsWworRTH. 
No. 2290, VoL. 92] | THURSDAY, SEPTEMBER 18, 1913 
[Price SIXPENCE 
Registered as a Newspaper at the General Post Office. | 
“ext {All Rights Reserved 
NEWTON & 60.'S 
* ACADEMY ” 
SCIENCE LANTERN 
A Marvel of Value. 
Illustrated Catalogue Post Free 
on request. 
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. 
Bs. d. 
No. 1326 Stand...3 13 0 
1» 304A Eyepiece 50 
yy 802 3” Object 
EES ett 
1» 804 4” Object 
lass 1100 
» 392A Double 
Nosepiece 90 
6 90 
No. 1328 Stand with 
focussing substage, £4.7.6 
(as illustration). 
R, & J. BECK, Ltd. 
68 CORNHILL, LONDON, E.C. 
REYNOLDS & BRANSON, Ltd. 
GRAND PRIX AWARD, TURIN. 
SOLE AUTHORISED MAKERS OF 
STROUD & RENDELL SCIENCE LANTERNS. 
The ‘‘College” Lantern, 
with Russian iron body, suitable 
for either limelight or the electric 
arc, mahogany mirror box, rigid 
base-board without opening for 
adjustable stage, sliding exten- 
sion, two superior objectives (C 
and F), 6, 7, 8, 9, or 10in. focus, 
condensers 4} in. diameter, prism 
with silvered back, which can be 
used at C or as an erecting prism 
at F in mount (D). with lime- 
light jet and slide carrier. 
Complete in travelling case 
without adjustable stage ie a £8 2 6 
Ditto, with Phoenix Arc Lamp ie ie ay 9 10 0 
The “‘ University ” Lantern, with sliding base-board, fitted 
with limelight burner, without adjustable table one i AOR 
Ditto, with Phoenix Arc Lamp 3 ia a ove 141 15 0 
Reversible Adjustable Stage for supporting apparatus ..- cre 76 
Slit and prism for spectrum with support, for either lantern ... 1 ery He 
Polariser and analyser oo ae ep 00 
Catalogues post free. 
Optical Lanterns and Accessory Apparatus (New Edition) 40 pages. 
Abridged List of Chemical Apparatus and Chemicals, 44 pages. 
Mechanical Models for teaching Building and Machine 
Construction. 
14 COMMERCIAL STREET, LEEDS. 
ee ___ 
The latest Recording 
Rain Gauge is the 
‘FERNLEY’ 
which embodies 
several new 
interesting. . 
features. Entirely 
automatic, it is 
the result of 
a numerous __ tests 
: and___ lengthy 
> y experiments. 
NEGRETTI & ZAMBRA 
38 Holborn Viaduct, London, E.C. 
City Branch: 45 Cornhill, EC; 
West End: 122- Regent St. W. 
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Write yor 
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