1959. Fourth Edition. 963 pages. This is an ex-Library book. Illustrative jacket over black cloth. Expected library inserts, stamps and inscriptions. Contains black and white illustrations throughout. Pages remain bright and clear with minimal tanning and foxing. Thumb-marking present. Tape to pastedowns. Visible creasing to gutter. Boards have moderate edge-wear with bumping to corners and rubbing to surfaces. Visible crushing to spine ends. Light sunning to spine and edges. White marks overall. Textblock is shaky. Clipped jacket has moderate edgewear with chips, tears and creasing. Light sunning to spine. Noticeable rubbing to surfaces. Scuffing to edges.