Undated. viii, 248pp, 4 black and white illustrated plates. Blue cloth-covered boards; black titles on spine. 8vo. Sun-faded and foxing spine and board edges, worn and fraying spine ends; corners worn; boards mottling; volume cupped. Text block edges foxed and tanned, top edge dusty. Endpapers starting to fox and tan. Gift inscription on front free endpaper (dated 1939). Occasional stretched gutters., volume quite loose. Otherwise, internally neat, clean.