GENTIL, François. Dissertation sur le Caffé, Paris: chez l'auteur & Pyre, 1787, 8°, engraved frontispiece (dampstained and bound in opposite A2, title and preliminaries spotted and slightly stained), modern wrappers. [Bitting p. 179] With P. J. Buc'hoz's Dissertation sur le Cacao (Paris, 1787) in contemporary wrappers, and a 19th-century English pamphlet on the mangel-wurzel. (3)