1957. Fourth Edition. 378 pages. No dust jacket. Black cloth with photographic black and white in text images and black and white illustrations throughout. Minor tanning to pages with heavier foxing and tanning to pastedowns and endpapers. Pen inscriptions to front endpaper and pastedown and major thumb-marking present. Visible foxing and tanning to text block edges and cracks to guttering with exposed netting. Binding is loose. Boards have minor rubbing and visible edge wear and bumping to corners. Fair crushing to spine ends and notable rubbing to spine.