1951. 3rd Edition. 506 pages. Beige jacket over red cloth. Pages are lightly tanned and thumbed at the edges, with light foxing. Binding has remained firm. Boards are a little rub worn, slight shelf wear to corners, spine and edges. Corners are a little bumped. Spine ends are mildly crushed. Light wear to clipped dust jacket with tears, nicks and creases to spine, edge and corners.