1952. Second edition. 237 pages. This is an ex-Library book. Laminated pictorial dust jacket over green cloth. Black and white photographs and diagrams. Ex library copy with associated labels, inserts, stamps and annotations. Pages and binding are presentable with no major defects. Minor issues present such as mild cracking, inscriptions, inserts, light foxing, tanning and thumb marking. Overall a good condition item. Boards assumed in good condition as covered with library laminated jacket. Unclipped jacket has light edge wear with minor tears, chipping and creasing. Some tanning and foxing to all surfaces, particularly to spine.