1966. Third Edition; Second Impression. 317 pages. Pictorial dust jacket over green cloth. Black and white illustrations and map throughout. Pages are slightly tanned throughout. Mild marginalia to pages throughout. Small pencil inscription to front end paper. Moderate tanning to text block edges. Mild water mark to upper text block edge. Boards have light shelf-wear with corner bumping. Light rubbing all over. Small dent to upper edge on front board. Mild tanning to spine with faint bleaching spot to tail and minor wear to ends. Unclipped jacket has moderate edgewear with chips, tears, and creasing. Notable tear to tail of spine. Moderately tanned all over. Small sticker to rear panel.