1971. Revised Edition. 524 pages. No dust jacket. Blue cloth. Contains black and white illustrations. Moderate tanning, with light foxing and marking to pages. Creasing to occasional pages. Moderate tanning to pastedowns and endpapers. Boards have moderate shelf wear, with rubbing and marking. Light bumping to corners and crushing to spine ends. Book has noticeable forward lean. Boards are slightly bowed with heavy tanning to spine.