1958. Thirtieth Edition. 224 pages. No dust jacket. Paper covered boards. Clean pages with light tanning and foxing throughout. Tightly bound with mild thumb-marking throughout. Missing front endpaper. Notable stain to fore edge. Boards have light edgewear with corner crushing and notable marking to boards. Mild tanning to spine, which has mild crushing and tearing to ends. Ink droplets to front board. Boards are mildly warped.