1959. Second Revised Edition. 526 pages. Pictorial paper covers. Black and white photographic images and illustrations throughout. Minor foxing and tanning to pages. More prominent to text block edges, pastedowns and free endpapers. Light cracking to gutters and hinges but binding remains firm. Paper covers have light edge-wear and corner curling with visible creasing and scuffing overall. Spine has noticeable sunning, rolling and creasing.