1963. Seventeenth Edition. 404 pages. Dust jacket over green cloth. Black and white illustrations throughout. Book is in better condition than most examples of this age. Neat, clean, well bound pages with very minimal foxing, tanning and thumbing. Small inscriptions and neat labels may be present. Boards have mild shelf wear with light rubbing and corner bumping. Some light marking and sunning. Unclipped jacket has light edgewear with tears and creasing. Moderate water staining to spine. Light rubbing and marking all over.