CASTRES. Relation d'un voyage sur le bord septentrional de la mer d'Azof et en Crimée. Paris, France. Kilian, Picquet. 1826. 1 volume in-8, brown pebbled basane, smooth spine decorated. First edition of this mission of exploration and information in the Crimea, commissioned in 1792, to find a suitable asylum for French émigrés in the event of permanent exile. Contains a facsimile of a letter from Monseigneur le Prince de Condé to the author.