A WEEKLY’ ILLUSTRATED JOURNAL OF SCIENCE. 
“To the solid ground 
Of Nature trusts the mind which builds for rT EEN OEE 
No. 2233) Vot. 89] _. THURSDAY, oe ‘1s, 1912 aT SIXPENCE _ 
__ Registered asa 1 Newspaper at the General Post Office.) . 
[All Rights Reserved. 
REYNOLDS & BRANSON, Ltd., 
MANUFACTURERS of CHEMICAL and PHYSICAL APPARATUS 
Awards (in 1911) for Scientific Apparatus:— 
Gold Medal, Allahabad. Grand Prix, Turin. 
GOODMAN'S PATENT PLANIMETER. 
VITASCOPE 
An entirely novel Instrument 
In case complete. for examining and observing 
Garden Stand, i= J} living insects in the garden or Se eerie eae eee 
PATENTED the house under high magnifi- purposes, inleathercase .. 43 oO 57 10 
AND cation without disturbing them GOODMAN’S PATENT AVERAGING INSTRUMENT. 
REGISTERED. or removing them from their 
. * natural surroundings, 
The magnification 
can be varied from ° 
Descriptive Pamphlet Post Free. 12 to 60 diameters. 
SOLE MAKERS— 
NEWTON & CO., 
72 WIGMORE ST., LONDON W. Averaging I Instrument (Goodman 's), for Indicator ee late 
Establi-hed over 200 years. _ Telegrams: ‘* Newrobar, London.” | Descriptive Circular post free on application. 
| 4 COMMERCIAL STREET, LEEDS. 
THE RAINBOW CUP Student Equatorial 
BOYS'S PATENT. 
| Telescope 
with 3-inch object glass, and circles 4 inches diameter 
divided on brass, the hour circle reading to 1 minute,.the 
MAGICAL ASTOUNDING | declination to 5 minutes. Complete in pie case, with 
3 eye » pieces. P 
COLOUR EFFECTS R Vii, ai List 
of Telescopes 
Yee on request. 
NEGRETII 
& ZAMBRA, 
Holborn Viaduct, 
London, E.C. 
Branches: 
A_NEW INSTRUMENT 
for studying the colours of thin films. Produces the most 
beautiful colour forms and colour changes imaginable. 
Price 2Ss., including two bottles of special soap solution 
and full instructions. 
JOHN J. GRIFFIN & SONS, Ltd. 
Kemble St., KINGSWAY, LONDON, W.C. 
45 Cornhill, E.C 
122 Regent St., W. 
