1951. 5th Edition. 268 pages. Pictorial dust jacket over blue cloth. Contains black and white illustrations. Well bound and clean pages, with mild tanning to text block edges. Moderate foxing and tanning to pastedowns and endpapers with plate to front. Boards have mild shelf wear with light rubbing and corner bumping. Some light marking and sunning. Book has noticeable forward lean. Unclipped jacket has light edge wear with minor tears and chipping. Moderate tanning and creasing, with rubbing and marking.