1931. Third Impression. 296 pages. No dust jacket. Red cloth boards with gilt lettering to spine. Black and white photographic plates and diagrams throughout. Binding a little loose. Crinkling and cracking to pages at gutters. Pages are moderately tanned throughout. Thumb marking present. Occasional foxing. Pencil inscription to front endpaper. Front hinge is cracked, with exposed netting. Boards have mild edge wear with slight rubbing to surfaces. There is bumping to corners and crushing to spine ends. Tanning to spine and edges causing discolouration. Book has a slight forward lean.