SENANCOUR (Etienne-Jean-Baptiste Pivert de) Love, considered in the real laws, and in the social forms of the union of the sexes. Paris, Cérioux, Arthus Bertrand; de l'Imprimerie de Béraud, February 1806, in-8, blond basane, spine with nerves cloisonné and fleuronné, double gilt fillet framing on plates, single gilt fillet on cups (posterior rel.). Unusual first edition