1961. Sixth Edition. 342 pages. Red dust jacket over brown cloth. Black and white illustrated frontispiece. Pages are lightly tanned and foxed throughout. Minor pencil inscription to front free endpaper. Binding remains firm. Boards have mild edge wear with slight rubbing to surfaces. Soft crushing to spine ends. Book is slightly forward leaning. Unclipped jacket has moderate edge wear with chips, tears and creasing. Brown stained marking to rear panel. Light tanning to spine and edges.