MERCURIALE, Girolamo (1530-1606) - De morbis puerorum tractatus locupletissimi. Venice: Paolo Meietti, 1583. [Bound with:] De venenis et morbis venenosis tractatus locupletissimi. Venezia: Paolo Meietti, 1584. First editions. The first is ".. largely a distillation of ancient Greek, Roman, and Arabic writings on children's diseases, but Mercuriale contributed a few original observations"; the second is an early work on toxicology. 2 works in one volume, 4to (232 x 178mm). Woodcut device on titles and initials (title reinforced, stained, repaired and with small losses, *2 repaired at upper margin, small worming to lower margin of 2*4-C4 and in some other leaves). Contemporary vellum (spine worn). Provenance: some contemporary annotations - Marco Antonio Mollo? (early ownership note).