Post Lot Text
First edition, first issue (without author's name, with the two Latin treatises on calculus) of Newton's papers on light and color. All previous investigators had been sure that white light is pure and simple, regarding colours as modifications or qualifications of the white. Newton showed experimentally that the opposite is true. The periodicity in Newton's rings led him to postulate that periodicity was a fundamental property of light waves. Nevertheless, he preferred the corpuscular theory of light, as it explained certain optical phenomena rather better. The book ends in this issue with two papers to establish Newton's prior claim over Leibniz to the discovery of calculus. Very fine copy, characteristic of the Trotter provenance, fresh and unpressed.