1964. 636 pages. No dust jacket. This is an ex-Library book. Green cloth with title card to spine. Book rebound by library, with expected inserts, stamps, inscriptions. 636 pages with short articles to rear, paginated separately. Includes illustrations. Volume 91. Pages remain bright and clear with minimal tanning or foxing. Slight creasing to half title page. Occasional thumb-marking. Boards have some moderate edge wear, with slight bumping to corners and minor bumping to spine ends. Text block is firm. Minor edge wear to spine label.