1968. Revised Edition. 248 pages. Pictorial dust jacket over yellow cloth. Pages remain bright and clear with minimal tanning and foxing. More pronounced tanning to endpapers. Binding remains firm. Pen inscription to front free endpaper. Boards have noticeable edge wear with corner bumping and rubbing to surfaces. Small split to lower front joint. Mild sunning to spine and edges. Clipped dust jacket. Panels to dust jacket have heavy edge wear with chips, tears and areas of loss. Water staining to reverse of jacket.