1946. 4th Edition. 248 pages. No dust jacket. Brown cloth. Contains black and white illustrations. Moderate tanning, with light foxing and marking to pages. Heavy tanning and foxing to text block edges. Some rub-marking and tanning to pastedowns and endpapers with inscriptions to front. Boards have moderate shelf wear, with rubbing and marking. Heavy bumping to corners and crushing to spine ends. Book has noticeable forward lean. Boards are slightly bowed and tanned.