Fourth Edition. 320 pages. No dust jacket. Green cloth. Pages remain clear with minimal tanning and foxing. End papers are more notably tanned. Previous owner's inscription to front paste-down. Cracking to hinges, no damage to end papers. Some occasional mild cracking to gutters throughout, binding remains reasonably firm. Boards have moderate edge-wear with bumping to corners and rubbing to surfaces. Mild crushing to spine ends, with fraying cloth and small splits. Boards have minor damp and dust stains. Moderate tanning to spine.