1961. 4th Impression. 378 pages. Pictorial dust jacket over blue cloth. Contains black and white illustrations. Binding remains firm. Pages and illustrations have light tanning and foxing throughout. Previous owner's inscriptions to front free endpaper. Boards have light shelf-wear with corner bumping. Slight crushing to spine ends. Paper residue to rear board. Wear marks overall. Unclipped jacket has light edgewear with tears and creasing. Light tanning to spine and edges.