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TO PHOTOGRAPHERS.--Pure Chemicals, with every requisite for the practice of
Photography, according to the instructions of Le Gray, Hunt, Brébisson, and
other writers, may be obtained, wholesale and retail, of WILLIAM BOLTON,
(formerly Dymond & Co.), Manufacturer of pure chemicals for Photographic
and other purposes. Lists may be had on application.
Improved Apparatus for iodizing paper in vacuo, according to Mr. Stewart's
instructions.