1957. Twenty Second Edition. 1671 pages. No dust jacket. Orange cloth covered boards. Pages have mild tanning and foxing throughout, moderate at end-papers, paste-downs and text-block edges. Cracking to gutters, with exposed netting causing the binding to be shaky. Boards have moderate edge-wear with bumping to corners and rubbing to surfaces. Mild crushing to spine ends. Moderate tanning to spine. Book has a pronounced forward lean.