Conradi Gesneri Tigurini medicinae et philosophiae professoris in Schola Tigurina, Historiae animalium Lib. V : qui est De serpentium natura : ex varijs schedis et collectaneis eiusdem compositus
Conrad Gessner's 1587 Zurich natural history of serpents, a scholarly zoology text printed by the Froschauer press for physicians and naturalists of the Renaissance. Its woodcuts show snakes drawn as sinuous S-curves, some with scaled bodies, a winged dragon-like serpent, and a pale snake with an open-mouthed head, offering designers a model for lively, stylised animal line work.
