London: Routledge and Kegan Paul, 1981. Reprint, 8vo., pp.xxxv,581, green cloth, gilt, b/w illustrations; small water mark to front free endpaper, lightly toned to edges and slightly throughout, slight toning to boards, very slightly rubbed, a very good copy, in an unclipped dust-jacket which has a small price sticker to inner flap, is lightly toned and rubbed to extremities with slight chipping to head of spine, and has a small water mark to front, overall good.