1965. Fourth Edition. 844 pages. Illustrated dust jacket over red cloth with black and white illustrations throughout. Mild tanning to pages foxing to text block edges. Slight dog-eared pages throughout and visible tanning to text block edges. Last few pages are heavily creased as well. Boards have moderate rubbing and minor bumping to corners. Fair crushing to spine ends and book is forward leaning. Unclipped jacket with light edge wear and visible rubbing. There is visible tearing to corners, edges and spine ends and noticeable sunning and foxing to interior.