1951. Fourth Edition; Reprint. 758 pages. No dust jacket. Blue cloth with gilt lettering. Clean pages with mild tanning and moderate foxing throughout, heavy in places. Tightly bound with faint thumb-marking throughout. Pencil marks throughout contents pages. Previous owner's inscription to front pastedown. Boards have light edgewear with corner crushing and heavy marking to boards. Notable tanning to board edges and spine, which has mild crushing to ends. Book has forward lean. Boards are mildly warped.