Lot 43: CHARLES CROS

Solution générale du problème de la photographie des couleurs. Paris: Gauthier-Villars. 1869. 8° (234 x 154). Original printed wrappers (wrappers staring at foot, light soiling and short tears, one of these repaired). Custom half-morocco clamshell case by Devauchelle.

FIRST EDITION OF CROS' FIRST BOOK, LAYING THE THEORETICAL FOUNDATIONS FOR COLOUR PHOTOGRAPHY. Cros' method broke with Becquerel and others in proposing a method of indirect chromatic synthesis thereby marking a fundamental departure from much previous research on the subject. In yet another instance of simultaneous discovery, on the same day the Académie de sciences received Louis Ducos du Hauron's paper announcing similar findings. En français dans le texte 292.

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