3 works in one volume, 4to (202 x 151 mm). 29 folding engraved plates. (Without the leaf with glossary of mathematical symbols inserted before A3, often lacking; some browning or offsetting, a few short tears to folds of plates).  Contemporary mottled calf (neatly rebacked preserving old lettering-piece). Provenance: unidentified bookplate verso of title-page partially removed.

FIRST EDITION of Barrow's translation of the known works of Archimedes, the first four books of the Conics of Apollonius, and the Spherics of Theodosius. Includes Barrow's Lectiones opticae, which were revised and corrected by Newton: "these lectures, in Latin, form [Barrow's] most important book, in which some of his remarkable optical discoveries are published for the first time and which undoubtedly influenced Newton" (Babson 249). ESTC R6704.