[Arthur de GOBINEAU]. File from the publisher Firmin-Didot on the exploitation of his works. Sales accounts, royalty statements, and statements of print runs and inventories for Essai sur l'inégalité des races humaines (1853), Lecture des écritures cunéiformes (1858), Traité des écritures cunéiformes (1864). Correspondence (with duplicate typescripts of replies): letters from his widow the Countess de Gobineau (2, 1883), from his daughter Christine de Gobineau-Serpeille (1921), from his grandson Clément Serpeille de Gobineau (10, 1921-1927), from Count Florimond de Basterot (7, 1882-1884), from Georges Vacher de Lapouge (1928); from publishers for editions of Essai sur l'inégalité des races humaines: Georges Crès, Gaston Gallimard and Robert Aron, etc. Plus proofs, cover essays, flyers, press clippings...