1966. Fifth edition. 501 pages. Illustrated dustjacket over brown cloth. Pages remain bright and clear with minimal tanning and foxing. Unequal tanning to endpaper corresponding with jacket flaps. Pen inscription to front endpaper. Boards have mild edge-wear with slight rubbing to surfaces. Spine has crushing to both ends. Book has forward lean. Unclipped jacket has light edgewear with tears and creasing. Spine is heavily tanned.