NYNAULD Jean de. De la Lycanthropie, transformation et extase des sorciers, ou les astuces du Diable sont mises tellement en évidence qu'il est presque impossible, voire aux plus ignorants, de se laisser sedduire dorénavant... Paris, Nicolas Rousset, 1615; in-8, 112 pp. poorly numbered 109, Second Empire ebony jansenist morocco, ribbed spine, interior lace, gilt edges (Hardy). First edition of this treatise on werewolves, which the author sees rather as the result of disorders of the mind. "One of the classic works on witchcraft and nevertheless one of the rarest" (Caillet, 8224). Fine copy, well bound by Hardy.