ROBIQUET (Henri-Edmond). Theoretical and practical manual of collodion and albumen photography. Paris : Labé, Maison Sénez, 1859. - In-18, green half cloth, smooth spine decorated with a gilt fleuron, untrimmed (period binding). Very rare first edition of this work composed by the physicist and pharmacist Henri-Edmond Robiquet (1822-1860), illustrated with several woodcuts in the text and on the full page as well as with 2 plates including a charcoal photograph of the tomb of Sultan Mahmoud in Constantinople. Copy enriched on the title with this autograph sending from the author addressed to Gustave Lebègue : " To my friend Gustave Lebègue // affectionate memory // Ed Robiquet " One finds this other sending on the second white guard, written by a descendant of the author in 1961 : " To my dear son-in-law, // extremely qualified in // this matter... very perfec- // tioned since 1859 // Robiquet // May 11, 61 . Some rare annotations in pencil.