Sir Isaac Newton's Mathematical principles of natural philosophy and his System of the world / translated into English by Andrew Motte in 1729. The translations rev., and supplied with an historical and explanatory appendix, by Florian Cajori. Principia The system of the world. Newton, Isaac, 1642-1727. Mechanics Early works to 1800. Celestial mechanics. QA803 .A213 1962 531.34 NEM Includes reproduction of the t. p. of the 1st ed. of the Principia, London, 1687. Berkeley : University of California Press, 1966. 1966. 1962 Text xxxiii, 296 p.: eng englat