1967. Eighteenth Edition. 159 pages. Illustrated dust jacket over red cloth with photographic black and white plates throughout. Heavy tanning to pages with heavier foxing and tanning to pastedowns and endpapers. Pen inscriptions to front endpaper and slight dog-eared pages throughout. Moderate tanning to text block edges and binding is loose. Boards have minor rubbing and light bumping to corners. Fair crushing to spine ends. Clipped jacket with minor edge wear and rubbing. Splitting to joints and visible tearing to corners, edges and spine ends.