1937. New and Revised Edition. 180 pages. No dust jacket. Blue paper covered boards with a metallic silver spine strip. Pages remain clear with minimal tanning and foxing. Some occasional mild cracking to gutters throughout however binding remains reasonably firm. Boards have moderate edge-wear with bumping to corners and rubbing to surfaces. Cloth has moderate damp and dust stains. Mild crushing to spine ends. Book has a slight forward lean. Small split at the bottom of the front board-spine joint. Old label to front board.