1939. Sixth Edition Revised. 624 pages. Brown dust jacket with red lettering over red cloth. B&W illustrations throughout. Mild brown staining to pages on occasion. Notable foxing and tanning to endpapers and page edges. Front hinge severely cracked thus the board is slack. Mild wear and bumping to spine, board edges and corners. Notable scuffing, foxing and soiling to boards. Unclipped dust jacket. Moderate wear, tear and loss to edges and corners. Notable tanning to spine, with soiling to DJ.