DESCARTES (René). The Principles of Philosophy. Paris, Henry and Nicolas Le Gras, 1659. In-4, edition illustrated with a hors-texte plate and numerous woodcut in-text figures. Bound in full contemporary speckled basane, 5-ribbed spine, red morocco title-piece. (major restored loss to title and angular restoration to first few leaves, copy short at head, slight trace of wetness to last few leaves, a few stains, inscription on spine cover "borsier" (?), binding very rubbed, loss at bottom of spine). Expert : Mr. Nicolas Asvisio