1939. Third Edition. 185 pages. No dust jacket. Blue cloth covered boards. Pages remain clear with minimal tanning and foxing, mild to end-papers and text-block edges. Binding remains firm. Boards have moderate edge-wear with bumping to corners and rubbing to surfaces. Cloth has minor damp and dust stains. Mild crushing to spine ends. Book has a slight forward lean. Moderate tanning to spine. Small split to cloth at tail of front hinge.