1961. Revised Edition. 48 pages. Pictorial dust jacket over blue cloth. Black and white illustrations throughout. Binding remains firm. Pages and illustrations are lightly tanned throughout. Pen marking and part cut out to front free endpaper. Boards have light shelf-wear with corner bumping. Light tanning to spine and edges. Paper decoration stuck to front board. Clipped jacket has moderate edgewear with chips, tears, and creasing. Small area of loss to top of spine. Light tanning to spine and edges.