1961. 5th Edition. 266 pages. No dust jacket. Blue cloth. Contains black and white illustrations. Well bound and clean pages, with mild tanning to text block edges. Some rub-marking and foxing to pastedowns and endpapers with inscriptions to front. Boards have moderate shelf wear, with rubbing and marking. Light bumping to corners and crushing to spine ends. Book has noticeable forward lean, with sunning overall. Boards are slightly bowed.