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A WEEKLY ILLUSTRATED “JOURN Ae OL  SCIBING 
“To the solid ground 
Of Nature trusts the mind which builds for aye.’’—WorDswortil. 
_No. 221 . Vor. 89] _ THURSDAY, MARCH 28, 1012 ise See 
Registered as asa eae aaper at t the General Post Office.) 7 = =e ak a al Rights Reserved. 
REYNOLDS & BRANSON, Ltd. 
Grand Prix, Turin. 
“RYSTOS” REFLEX CAMERA. 
New Design for Naturalists, 
Tourists, &c. 
A thoroughly efficient instrument capable of the 
highest class work. The }-plate size has an exten- 
sion of 15 in., so that either the back or front 
combination cf the lenses may be used alone. It has 
rising, falling and swing front, revolving back for 
horizontal and vertical pictures, focussing hood 
(self-contained), everset reflecting mirror, returning 
to set position after each 
exposure. Focal plane 
shutter with. self-capping 
blind for time and instan- 
taneous exposures from 
roth to ypyath of a second, 
with new exposure stop and 
indicator, pneumatic release 
with time valve for auto- 
matic exposures of }, }, 4, 
I, 2, or 3 seconds. 
Post Card 
Elbow Polariscope, for illustrating the various phe- 
nomena of polarized light, with polarizing glass plates, 
prism and lenses, mounted in brass, with rack adjustment lperceticomnletetwitaithresidonbleipiateiholders }-plate. and 5X4 in. 
to focus tube, in case, complete, &7 7s. with aluminium shutters, without lens... £13 0 0 £18 10 O 
Ditto with Ross Homacentric Lens, 
| Scriesill Misch =, Asolo 24 “5.0 
NEW TO Ri Sz co. Ditto with Goerz Dagor Lens, He eae Pe ae 
= Series III., F/6'8 ... . 18 
12 WIGMORE ST. LONDON ? WY). New Catalogue of Photographic requisites, 104 pages, post free. 
(44 COMMERCIAL STREET, LEEDS. 
> Ta TS} EE $ ST ¢ > ES 
Observe the New Star, Solar 
Eclipse, and the Wonders of the 
Heavens at a moderate outlay. 
A 3-inch Astro Tele- 
scope, on table tripod, 
¢ 
Pe packed in 
2 
¢ 
doun J. GRIFFIN & SONS 
KEMBLE STREET, 
KINGSWAY, LONDON, W.C. | 
ODN > Rees 
: MAKERS OF tse eee 
Physical_Appar alus Pee 
IMMEDIATE DELIVERY. 
GRAND PRIX 
DIPLOMA OF HONOUR & Zambra, 
AN? Holborn Circus, 
3 GOLD MEDALS London, E.C. 
Negretti 
45 Cornhill, E.C., & 
122 Regent St., 
me ¢ oe 
TURIN INTERNATIONAL EXHIBITION, 19144 
