1959. 7th Edition. 485 pages. Grey dust jacket over red cloth. Binding remains firm. Pages have light tanning and foxing throughout. Previous owner's inscription to front free endpaper. Boards have light shelf-wear with corner bumping. Slight crushing to spine ends. Unclipped jacket has moderate edgewear with chips, tears, and creasing. Light tanning to spine and edges. Water staining to bottom edges.