1954. Sixth Edition. 325 pages. No dust jacket. Blue cloth with black lettering. Pages are fairly bright and clear, with light tanning to text block edges. Pencil inscription to front free endpaper. Liquid drops, rubbing and a few small nicks along text block edge. Minor dog-eared corners. Occasional thumb-marking present throughout. Boards have moderate shelf-wear with mild bumping to corners and rubbing to surfaces. Slight tanning to spine and edges, with visible crushing to spine ends. Book has a subtle forward lean. Small split to spine end, with a liquid drop on front board.