Fourth Edition, Revised. 382 pages. No dust jacket. Red cloth covered boards with gilt lettering. Pages are moderately tanned and occasionally foxed throughout. Ex Libris plate to front paste-down and end paper. 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. Moderate crushing to spine ends, with splitting, fraying and loss to the head, tail and joints. Gilt lettering has become dull. Sunning to spine. Boards have minor damp and dust stains. Book has a slight forward lean.