LESLIE, John. An Experimental Inquiry into the Nature and Propagation of Heat, London: J. Mawman, 1804, 8°, FIRST EDITION, PRESENTATION COPY, inscribed to first blank: "To Baron Maseres with best wishes from the Author," 9 engraved plates (a few spots), contemporary calf, gilt armorial of the Inner Temple Library to front cover (rebacked, front cover detached).