1967. Fifteenth Edition. 597 pages. Red dust jacket over red cloth. Contains black and white illustrations and Contains colour plates throughout. Pages remain bright and clear with minimal tanning and foxing. Thumb-marking present. Noticeable creasing to gutter. Boards have mild edge-wear with slight rubbing to surfaces. Soft crushing to spine ends. Visible tanning to spine and edges. White marks and water staining to boards. Textblock is shaky. Clipped jacket has moderate edgewear with chips, tears and creasing. Visible tanning to spine. Noticeable rubbing to surfaces. Scuffing to edges and panels.