1953. Fifth Edition, Revised. 296 pages. Pictorial dust jacket over green cloth. Contains black and white in-text illustrations. Pages are lightly tanned and foxed throughout. Minor pencil inscription to front free endpaper. Occasional thumb-marking present. Binding remains firm. Boards have moderate edge wear with bumping to corners and rubbing to surfaces. Soft crushing to spine ends. Book is slightly forward leaning. Unclipped jacket has moderate edge wear with chips, tears and creasing. Scuffing and light marking overall. Mild tanning to spine and edges. Mild foxing overall. Black mark to rear panel.