1947. Twelfth Edition. 313 pages. Dust jacket over blue cloth. Clean pages with mild tanning and heavy foxing throughout. Tightly bound with faint thumb-marking throughout. Previous owner's inscription to front endpaper. Boards have light shelf-wear with corner bumping. Book has forward lean. Boards are mildly warped. Unclipped jacket has moderate edgewear with chips, tears, and creasing. Mild foxing. Heavy sunning to spine. Mild rubbing and marking all over.