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PHOTOGRAPHIC PAPER.--Negative and Positive Papers of Whatman's,
Turner's, Sanford's, and Canson Frères' 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.
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PHOTOGRAPHY.--Collodion (Iodized with the Ammonio-Iodide Of Silver).--J.
B. HOCKIN & CO., Chemists, 289. Strand, were the first in England who
published the application of this agent (see _Athenæum_, 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.
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