1965. Sixth Edition. 222 pages. This is an ex-Library book. Dust jacket covered in removable plastic wrapper over green cloth. Library copy, with expected inserts and inscriptions. Pages are moderately tanned. Mild cracking to gutters, however binding remains firm. Frontispiece is notably loose. Notable scuffing to front endpaper. Boards are assumed in good condition as are covered with taped on jacket. Book has forward lean. Unclipped jacket has light edgewear with tears and creasing. Mild sunning to spine. Notable rubbing and marking all over.