1961. New Edition, Revised. 330 pages. Pictorial dust jacket over grey cloth. Black and white illustrations throughout. Binding remains firm. Pages and illustrations are lightly tanned throughout. Previous owner's inscription 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. Light tanning to spine and edges.