1965. 55th Edition. 918 pages. Pictorial dust jacket over green cloth. Black and white illustrations throughout. Slight cracking to hinges, with exposed netting, tape to title page. Pages and illustrations have light tanning and foxing throughout. Sticker to front free endpaper. Boards have light shelf-wear with corner bumping. Light tanning to spine and edges with crushing to spine ends. Unclipped jacket has moderate edgewear with chips, tears, and creasing. Light tanning to spine and edges. Water stain to front panel.