1955. Second Edition, Revised. 256 pages. Yellow jacket over blue cloth with gilt lettering to spine. Contains black and white illustrations throughout. Pages are mildly tanned, but text remains clear. Binding is firm. Visible marking to rear endpapers. Previous owner's inscription to front free endpaper. Boards and spine have minimal shelf-wear, with mild corner bumping and crushing to ends. Spine and edges are slightly tanned. Gilt remains bright. Unclipped jacket. Light tanning to spine, edges and joints. Visible water staining to spine. Heavy edgewear, with visible rips and chipping, and some areas of loss. Heavy ripping to spine.