BLANQUART-ÈVRARD, (LOUIS-DESIRE). - PHOTOGRAPHIC "GLASS-PICTURES".

Recherches photographiques.

(Paris, Bachelier), 1849. 4to. Without wrappers. In "Comptes rendus hebdomadaires des séances de l’Académie des sciences", Vol. 29, No 8. Pp. (193-) 224. (Entire issue offered). Blanquart-Evrard's paper: pp. 215-217.

First printing of an importent paper in the history of photography in which " Blanquart-Evrard described, in 1849 (the paper offered), a process very similar to that of Niepce de Saint-Victor (his glass pictures or "Niepceotypes"), with minor changes, and called attention to the fact that the silver-iodized albumen could be used either moist or dry."(Eder p. 339).

"In the field of photography we are indepted to Blanquart-Evrard for many improvements,in particular for having introduced the developing process of iodide bromide (or silver chloride) paper by gallic acid as a rapid printing process for producing large editions of silver prints."(Eder).

Order-nr.: 47233