HOCKIN & CO., Chemists, 289. Strand, were the first in England who
published the application of this agent (see _Athenaeum_, Aug. 14th). Their
Collodion (price 9d. per oz.) retains its extraordinary sensitiveness,
tenacity, and colour unimpaired for months: it may be exported to any
climate, and the Iodizing Compound mixed as required. J. B. HOCKIN & CO.
manufacture PURE CHEMICALS and all APPARATUS with the latest Improvements
adapted for all the Photographic and Daguerreotype processes. Cameras for
Developing in the open Country. GLASS BATHS adapted to any Camera. Lenses
from the best Makers. Waxed and Iodized Papers, &c.

* * * * *

Just published, price 1s., free by Post 1s. 4d.,

THE WAXED-PAPER PHOTOGRAPHIC PROCESS of GUSTAVE LE GRAY'S NEW EDITION.
Translated from the French.

Sole Agents in the United Kingdom for VOIGHTLANDER & SON'S celebrated
Lenses for Portraits and Views.

General Depot for Turner's, Whatman's, Canson Freres', La Croix, and other
Talbotype Papers.

Pure Photographic Chemicals.

Instructions and Specimens in every Branch of the Art.

GEORGE KNIGHT & SONS, Foster Lane, London.

* * * * *

PHOTOGRAPHIC PAPER.--Negative and Positive Papers of Whatman's, Turner's,
Sanford's, and Canson Freres' make, Waxed-Paper for Le Gray's Process.
Iodized and Sensitive Paper for every kind of Photography.

Sold by JOHN SANFORD, Photographic Stationer, Aldine Chambers, 13.
Paternoster Row, London.

* * * * *

PHOTOGRAPHIC PICTURES.--A Selection of the above beautiful Productions
(comprising Views in VENICE, PARIS, RUSSIA, NUBIA, &c.) may be seen at
BLAND & LONG'S, 153. Fleet Street, where may also be procured Apparatus of
every Description, and pure Chemicals for the practice of Photography in
all its Branches.

Calotype, Daguerreotype, and Glass Pictures for the Stereoscope.

BLAND & LONG, Opticians, Philosophical and Photographical Instrument
Makers, and Operative Chemists, 153. Fleet Street.

* * * * *

CLERICAL, MEDICAL, AND GENERAL LIFE ASSURANCE SOCIETY.

* * * * *

Established 1824.

* * * * *

FIVE BONUSES have been declared: at the last in January, 1852, the sum of
131,125l. was added to the Policies, producing a Bonus varying with the
different ages from 241/2 to 55 per cent. on the Pr