London: George Allen & Unwin Ltd, 1950. [xxiv], xxvii, [xxviii], [1], 2-692pp. 316 black and white illustrations throughout including frontispiece. New edition prepared by Douglas McKie. Original cloth gilt. Octavo. Spine edges a trifle rubbed; endpapers lightly browned; ownership inscription and small booksellers label to front paste-down endpaper; else a very good copy.