1962. 11th edition second impression. 426 pages. White dust-jacket over red cloth. Pages remain bright and clear with minimal tanning and foxing. Binding is shaky, however pages remain fully attached. Pencil inscription to front endpaper. Tape marking present. 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.