Cambridge: Harvard University Press, 1972. hardcover. Reprint of the third edition (1726) with Variant Readings. Edited by Alexandre Koyre and I. Bernard Cohen & Anne Whitman. 2 volumes. Illustrated with hundreds of in-text diagrams. 4to, black cloth, d.w. A near fine copy but for a sloppily removed label on the inside front cover. near fine / very good(+).
Third edition of Newton's masterpiece."The most influential scientific publication of the 17th century." -Horblit. "The Principia is generally described as the greatest work in the history of science. Copernicus, Galileo, and Kepler had certainly shown the way; but where they described the phenomena they observed, Newton explained the underlying universal laws. The Principia provided the great synthesis of the cosmos, proving finally its physical unity. Newton showed that the important and dramatic aspects of nature that were subject to the universal law of gravitation could be explained in mathematical terms within a single physical theory... It was this grand conception that produced a general revolution in human thought, equalled perhaps only by that following Darwin's Origin of Species." -PMM.