NEWTON, Sir ISAAC. The mathematical Principles of Natural Philosophy. Translated by Andrew Motte -- MACHIN, JOHN. The Laws of the Moon's Motion according to Gravity. London: for Benjamin Motte, 1729. 2 engraved frontispieces by A. Motte, 2 folding tables, 47 engraved folding plates and 3 engraved headpieces by Motte. 2 vols., 8vo, contemporary speckled calf gilt, rebacked in antique style. FIRST EDITION IN ENGLISH of the Principia. This edition also includes an English translation of Newton's System of the World, presumably by Motte. John Machin's unsuccessful attempt to rectify Newton's lunar theory is included at the end. Babson 20; Norman 1587. (2)