Isaac Newton's Philosophiae Naturalis Principia Mathematica (2 vol)
Harvard, 1972. Hard cover. Set of (2) books. NO jackets. Vol 1: Cover is lightly soiled. Corners gently bumped. Very light foxing on edge. Inside pages are clean and unmarked. Vol 2: Cracked/cut front hinge that does not affect integrity of book. Tan stain on top edge. Otherwise, same..... More