1950. Seventh edition. 199 pages. Pictorial dust jacket over green cloth. Pages with some foxing and tanning, particularly to endpapers and textblock edges. Binding remains firm. Boards have mild shelf wear with light rubbing and corner bumping. Some moderate marking and tanning. Book has slight forward lean. Unclipped jacket has light edge wear with minor tears, chipping and creasing. Some staining and water marking to surfaces.