1967. Fourth Edition Reprinted. 212 pages. Blue illustrated dust jacket over blue cloth boards with gilt lettering to spine. Binding remains firm. Crinkling to pages at gutters. Pages remain bright and clear with minimal tanning. Pencil inscription to front endpaper. Boards have mild edge wear with slight rubbing to surfaces. Crushing to spine ends. Boards are bowed. Book has a slight forward lean. Tanning to spine and edges. Unclipped jacket has light edge wear with minor tears and chipping. Mild rubbing and marking. Tanning to spine and edges.