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 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.
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.
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.