VIETA, Franciscus (1540-1603). Opera Mathematica, in unum volumen congesta, edited by Frans van Schooten, Leiden: ex officina Bonaventurae & Abrahami Elzeviriorum, 1646, 2°, FIRST COLLECTED EDITION, title, index and section on the calendar printed in red and black, title with device, sheet with volvelles for cutting out inserted after *6, woodcut diagrams (several library stamps, including perforation on title, a few leaves browned, occasional light dampstains), 18th-century mottled calf (joints split, back damaged, gilt library markings on upper cover). [Brunet V, 1212; Honeyman 3050; Norman 2152; Willems 609] Provenance: JCL