1955. Third Edition. 507 pages. No dust jacket. Blue cloth. Contains black and white in-text illustrations. Pages are lightly tanned and foxed throughout. Water staining to page edges. Light thumb-marking present. Binding is shaky. Boards have moderate edge wear with bumping to corners and rubbing to surfaces. Crushing to spine ends with small splits and fraying to cloth. Scuffed marking overall. Mild tanning to spine and edges.