1950. 2nd Edition, Revised. 68 pages. No dust jacket. This is an ex-Library book. Green cloth. Expected library inserts, stamps and inscriptions. Contains black and white maps. Binding remains firm. Pages are lightly tanned throughout. Heavier to endpapers and pastedowns. Boards have moderate shelf-wear with bumping to corners and rubbing to surfaces. Light sunning to spine and edges. Slight staining overall.