Fourth edition. 636 pages. No dust jacket. Green cloth with gilt lettering. Prize plate stuck to front pastedown. Frontispiece detached but present. Pages remain bright and clear with minimal tanning and foxing. Binding remains firm. Heavier tanning and foxing to some pages. Boards have moderate edge-wear with bumping to corners and rubbing to surfaces. Mild crushing to spine ends. Gilt lettering is bright and clear. Book has a slight forward lean.