1959. 5th Edition, Revised. 362 pages. Pictorial dust jacket over blue cloth. Black and white illustrations throughout. Binding remains firm. Pages and illustrations are lightly tanned throughout. Small tears to some page edges, text remains unaffected. Minor dog-eared corners. Boards have light shelf-wear with corner bumping. Light sunning to spine and edges. Unclipped jacket has heavy edgewear with areas of loss, heavy tears, chips, and creasing. Light tanning to spine and edges. Water marking to spine and rear panel.