Paris: Gauthier-Villars et Fils, 1897. First edition. 8vo., vi, 488 pp. Later half cloth and paper over boards. Light chipping to the cloth at the crown, tiny chip to the blank lower tip of the first 50 pp., ink stamp of Association Internationale des Photograveurs & Phototypeur en Belique on the title page and a few other leaves, and previous owner's neat bookplate affixed to the front pastedown. Very good. Item #53121
Louis Ducos du Hauron published his three-color process in 1869, and further elaborated upon it as applied to tricolor carbon printing. In this, his final publication, the revised and expanded publication of his processes, he details his improved method of three color photography, which he called "polifolium chromodialytique" which ultimately led to Kodachrome film in 1930.
Roosens and Salu No. 3358.