1958. 4th Edition. 456 pages. No dust jacket. Blue cloth with gilt lettering to spine and front board. Black and white illustrations throughout. Pages and illustrations are lightly tanned with mild foxing throughout. Heavy tanning with notable dust marks and pen inscription to pastedowns and endpapers. Binding is lightly shaky. Boards have moderate shelf-wear with bumping to corners and rubbing to surface. Minor scratches to both boards. Notable split to front joint. Moderate sunning to spine with visible crushing to spine ends. Gilt lettering is bright and clear.