London: Longmans, 1884. 2 volumes. Translated by E. Atkinson. Introduction by Professor Tyndall. Illustrated in black and white. 348, 8vos, attractively designed but worn olive green cloth with pictorial gilt stamping (darkened overall and scrape on back cover of vol. 1.). London: Longmans, Green and Co., 1884. A very good(-) set. "A new edition." Previous bookseller's and owner's various plates, notes, and stamps on preliminary pages.