1929. Sixth edition. 279 pages. No dust jacket. This is an ex-Library book. Brown cloth covered boards with gilt. Black and white illustrations throughout. Book has been rebound by library, with expected inserts, stamps and inscriptions. Pages remain bright and clean with minimal tanning and foxing. Binding remains firm. Boards have moderate shelf wear with mild bumping and fraying to corners and crushing and fraying to spine ends. All surfaces mildly tanned and sunned. Book has strong forward lean.