1950. Seventh Edition. 199 pages. Dust jacket over green cloth. Clean pages with noticeable tanning and foxing throughout. Tightly bound with faint thumb-marking throughout. Previous owner's inscription to front endpaper. Heavy foxing to text block edges. Boards have light edgewear with corner crushing and notable marking and mottling to boards. Mild crushing to spine ends. Moderate water stains to surfaces. Book has forward lean. Unclipped jacket has moderate edgewear with chips, tears, and creasing. Heavy tanning to spine and edges. Notable rubbing and marking all over.