1939. Eighteenth Edition. 316 pages. No dust jacket. Blue cloth boards with lettering. Clean pages with noticeable tanning and foxing throughout. More pronounced to free endpapers and pastedowns. Pen inscription to front free endpaper. Binding remains firm. Boards have mild edge-wear with slight rubbing to surfaces and bumping to corners. Lettering is bright and clear. Moderate splits to spine ends. Visible wear marks to spine and boards.