1960. Fifth Impression. 192 pages. No dust jacket. This is an ex-Library book. Green cloth boards with lettering. Expected library inserts, stamps and inscriptions. Slight crinkling to paper at gutter. Clean pages with noticeable tanning and foxing throughout. Tightly bound with faint thumb marking throughout. annotations and marginalia to pages throughout. Pencil markings to back free endpaper. Black marks to bottom edge textblock. Boards have moderate edge-wear with bumping to corners and rubbing to surfaces. Moderate crushing and fraying to spine ends. Moderate tanning to spine and edges. Book has a slight forward lean.