1959. Seventh Edition. 650 pages. No dust jacket. Orange cloth with gilt lettering. Black and white illustrations throughout. Contains black and white photographic plates. Clean pages with mild tanning and visible foxing throughout. Tightly bound with mild thumb-marking throughout. Pencil inscription to text block edges. Boards have light edgewear with corner crushing and notable marking to boards. Mild tanning to board edges and spine, which has mild crushing to ends. Mild water stains to head of spine.