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PHOTOGRAPHIC APPARATUS, MATERIALS, and PURE CHEMICAL PREPARATIONS.
KNIGHT & SONS' Illustrated Catalogue, containing Description and Price of
the best forms of Cameras and other Apparatus. Voightlander and Son's
Lenses for Portraits and Views, together with the various Materials, and
pure Chemical Preparations required in practising the Photographic Art.
Forwarded free on receipt of Six Postage Stamps.
Instructions given in every branch of the Art.
An extensive Collection of Stereoscopic and other Photographic Specimens.
GEORGE KNIGHT & SONS, Foster Lane, London.
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IMPROVEMENT IN COLLODION.--J. B. HOCKIN & CO., Chemists, 289. Strand, have,
by an improved mode of Iodizing, succeeded in producing a Collodion equal,
they may say superior, in sensitiveness and density of Negative, to any
other hitherto published; without diminishing the keeping properties and
appreciation of half-tint for which their manufacture has been esteemed.
Apparatus, pure Chemicals, and all the requirements for the practice of
Photography. Instruction in the Art.
THE COLLODION AND POSITIVE PAPER PROCESS. By J. B. HOCKIN. Price 1s., per
Post. 1s. 2d.
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Printed by THOMAS CLARK SHAW, of No. 10. Stonefield Street, in the
Parish of St. Mary, Islington, at No. 5. New Street Square, in the
Parish of St. Bride, in the City of London; and published by GEORGE
BELL, of No. 186. Fleet Street, in the Parish of St. Dunstan in the
West, in the City of London, Publisher, at No. 186. Fleet Street
aforesaid.--Saturday, February 18. 1854.