1950. Revised and Enlarged Edition. 492 pages. This is an ex-Library book. Green dust jacket over red cloth boards with gilt lettering to spine. Expected library inserts, stamps and inscriptions. Binding remains firm. Crinkling to pages at gutters. Pages remain bright and clear with minimal tanning. Boards have mild edge wear with slight rubbing to surfaces. Tanning to spine and edges. Gilt lettering is bright and clear. Book has a slight forward lean. Unclipped jacket has light edge wear with minor tears and chipping. Mild rubbing and marking. Tanning to spine and edges.