The Cambridge Nature Series Pond Problems by E E Unwin
1934. Reprint. 119 pages. No dust jacket. Pictorial cloth. Contains black and white illustrations. Well bound and clean pages, with mild tanning to text block edges. Heavy tanning to endpapers, with light marking to pastedowns. Boards have moderate shelf wear, with rubbing and marking. Light bumping to corners and heavy crushing to spine ends, causing cloth to fray. Boards are slightly bowed and tanned.