/ os 
A WEEKLY ILLUSTRATED JOURNAL OF SCIENCE. AUG 9 
“To the solid ground 
Of Nature trusts the mind which duilds for jase: ”.__WoRDSWORTII. WV 
No. 2220, VoL. 89] 
__ Registered asa Newspaper at the eG neral Post Office. } 
AY 
NEWTON &CO.’S 43 
NEW MODEL - 
ASTRONOMICAL 
TELESCOPE. 
Complete with 34 in. Ebject 
glass, 2 eyepieces, finder, &c. 
on altazimuth stand. 
Complete, 
£15 
Bekoeal Warrant to HM. the King 
72 WIGMORE STREET, LONDON, 
Ww. 
“ Newtobar, London.” 
Jou J. GRIFFIN 
KEMBLE STREET, 
KINGSWAY, LONDON, W.C. 
MAKERS OF 
Physical Apparatus 
GRAND PRIX 
DIPLOMA OF HONOUR 
3 GOLD MEDALS 
TURIN INTERNATIONAL EXHIBITION, 1944 
Established over 200 Years Telegrams: 
SONS | 
LTD. 
THURSDAY, JULYS® 18, 
| LABORATORY FURNISHERS 
[PRicE S ees 
{All Rights Reserved. 
1912 
REYNOLDS & BRANSON, Ltd., 
Optical, Chemical and Scientific Instrument Makers to Hn Majesty’s 
Government (Indian, Home and Colonial). 
& MANUFACTURING CHEMISTS. 
Biological Dissecting Instrument Case of new ce onstruction, with 
which is combined a simple Dissecting Microscope, thus making a very 
suitable case for Nature- Study Classes, &c. The case contains the follow. 
ing instruments: 1 pair fine pointed scissors, 2 dissecting needles, x scalpel, 
1 pair forceps, triple pocket lens, brass rod with cork attachment on which 
the lens slides ; the whole contained in a polished mahogany case. 
Price 8/6 each. 
Catalogue of other Dissecting Appar 
post free on applice 
14 COMMERCIAE STREET, 
Microscopes, &6., 
LEEDS. 
| The patent 
Wind 
Direction Recorder 
registers every change in the direction of the 
wind. The pen is actuated by the vane ; 
there is but one pen, which is always: in 
contact with the perfectly rectilinear chart. 
Price, complete, £17 10 O 
es tptive Pamphlet sent 
2 application. 
aw Negretti & Zambra, 
ree 4 é Holborn V ae 
=, London, E.C. 
Branches: 
45 Cornhill, E.C.; 
122 Regent St., W. 
