1962. 4th Edition. 287 pages. No dust jacket. Black cloth. Pages are lightly tanned and thumbed at the edges, with light foxing. Binding has remained firm. Boards are a little rub worn with slight shelf wear to corners, spine and edges. Corners are a little bumped. Spine ends are a mildly crushed, with small splits and chips. Light tanning to spine and edges. Slight forward lean to text block.