Books

London: Apud Guil. & Joh. Innys, 1726. Full description: NEWTON, [Sir] Isaac. Philosophiæ naturalis principia mathematica. Editio tertia aucta & emendata. London: Apud Guil. & Joh. Innys, 1726. Third edition. One of only 1250 copies printed. Quarto (9 1/2 x 7 1/2 inches; 241 x 190 mm.). [36], 530, [6, index] pp. Engraved frontispiece portrait (facing preface) by George Vertue after I. Vanderbank. Numerous diagrams in the text and one engraving of cometary orbit on p. 506. Title printed in red and black. In period repurposed mottled calf over original boards. Spine stamped in gilt. Red morocco spine label, lettered in gilt. All edges red. Marbled endpapers. Some old ink notes on front flyleaf. One instance of light marginalia. A one-inch closed tear to leaf D2, not affecting text. Some occasional very light dampstaining to fore-edge margin. Overall a very good, clean copy. “This edition was the last published during the author’s lifetime and the basis of all subsequent…

Philosophiæ Naturalis Principia Mathematica, often referred to as simply the Principia, is a work in three books by Isaac Newton, in Latin, first published 5 July 1687. After annotating and correcting his personal copy of the first edition, Newton published two further editions, in 1713 and 1726. The Principia states Newton's laws of motion, forming the foundation of classical mechanics; Newton's law of universal gravitation; and a derivation of Kepler's laws of planetary motion.