1967. Revised Edition. 144 pages. Pictorial dust jacket over blue cloth. Contains black and white illustrations. Well bound and clean pages, with mild tanning to text block edges. Some rub-marking and tanning to pastedowns and endpapers. Boards have mild shelf wear with light rubbing and corner bumping. Some light marking and sunning. Boards are slightly bowed. Unclipped jacket has light edge wear with minor tears and chipping. Mild tanning with rubbing and marking.