Paris: Gauthier-Villars 1886-1888. First Edition. 2 volumes. Vol 1: xvi, 467 pages. Vol 2: xiii, 573 pages. Half calf over marbled boards. Large 8vo. 6 1/2 x 9 3/4 inches. Light browning to pages. Frontispieces and plates each accompanied by guard sheet with descriptive letterpress. Near Fine. Boards. 
Epstean #10. Frontispiece of Vol. 1 is a Woodburytype of an instantaneous photo, and that of Vol 2 is a photogravure, both by Bousssod et Valadon (successors to Goupil). Vol 1 covers all operations and processes that produce a negative, including the archaic ones of Talbot, Le Gray, Baldus, Balanquart-Evrard, & others. Vol. 2 deals with the production of any kind of positive image, including tintypes, daguerreotypes and the photo-mechanical images.