BELLOC, AUGUSTE (1800-1867 )2 volumes in one work. The four branches of photography. A complete theoretical and practical treatise on the processes of Daguerre, Talbot, Nièpce de Saint-Victor and Archer, preceded by the annals of photography and followed by elements of chemistry and optics applied to this art. In-8 (21,5 x 14,5 cm) . First edition. 416 pp. Photolithograph by Belloc and Jacott after their process, in frontispiece. Folding synoptic table of chemical substances used in photography at the end of the book. followed by Traité théorique et pratique de la Photographie sur Collodion, followed by éléments de chimie et d'optique appliqués à cet art . In-8 (21,5 x 14,5 cm) . First edition. 208 pages. Half leather binding with gilt title (wear on the spine).