[DESCARTES, René.] A Discourse of a Method for the Well Guiding of Reason, and the Discovery of Truth in the Sciences, London, by Thomas Newcombe, 1649, 8°, FIRST EDITION IN ENGLISH, WITH THE RARE UNCANCELLED TITLE (lacking A1-3, blanks, and A8, last leaf of preface, title soiled and damaged at margins, some other soiling, some light spotting), old calf (crudely-rebacked). [cf. Wing D1129 (variant imprint)]