1931. Sixth Edition. 547 pages. Pictorial green dust jacket over red cloth. Pages are lightly tanned and foxed throughout. Cracking to hinges with exposed binding, causing boards to be slightly loose. Stamped marking to front pastedown. Minor pencil inscription to front free endpaper, with light red water staining. Binding is slightly shaky. Boards have moderate edge wear with bumping to corners and rubbing to surfaces. Soft crushing to spine ends. Scuffing and water stained marking overall. Book is slightly forward leaning. Unclipped jacket rubbing and marking to surfaces, with scuffing to edges and small splits to joints. Scuffing and light marking overall. Taped repairs to spine. Moderate tanning to spine and edges.