1955. Sixth Printing. 410 pages. Green dust jacket over green cloth. Binding remains firm. Pages are lightly tanned throughout. Pencil marks with slight stains and markings to some pages. Pencil inscriptions to front free endpaper. Boards have light shelf-wear with corner bumping. Very slight crushing to spine ends. Unclipped jacket has moderate edgewear with chips, tears, and creasing. Heavy sunning to spine. Wear marks overall, heavier to rear panel.