Plain directions for obtaining photographic pictures

by the calotype and energiatype, also, upon albumenized paper and glass, by collodion and albumen, etc., etc. ; including a practical treatise on photography, with a supplement, containing the heliochrome process ; also, practical hints on the daguerreotype, being simple directions for obtaining portraits, views, copies of engravings, drawings, sketches of machinery, etc., by the daguerreotype process, including the latest improvements in fixing, colouring, and engraving the pictures, with a description of the apparatus ; illustrated with engravings

by J. H. Croucher and Gustave Le Gray

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