The last edition published in Newton's lifetime, and the basis of all subsequent editions, with a new preface by Newton, and a large number of amendments. As Babson states, the most important of these was "the scholium on fluxions, in which Leibnitz had been mentioned by name. This had been considered an acknowledgment of Leibnitz's independent discovery of the calculus. In omitting Leibnitz's name in this edition, Newton was criticised as taking advantage of an opponent whose death had prevented any reply." This copy is printed on paper with the watermark CM.