Octavo (122x70 mm), pp. (42), 43–816; woodcut printer's mark on the title page, historiated initials, woodcut headpieces and tailpieces. Bound in full 17th-century vellum; manuscript ownership note on the title page, numerous marginal notes. An uncommon treatise on epidemic diseases and their transmission, with commentary by Galen. A good copy with slight paper browning.