1947. Fourth Edition. 699 pages. Illustrated dust jacket over green cloth boards. Gilt lettering. Contains black and white illustrations. Clean pages and illustrations with light tanning and mild foxing throughout. More pronounced to free endpapers and pastedowns. Hinges are slightly cracked with exposed netting. Binding remains firm. Boards have mild edge-wear with slight rubbing to surfaces and bumping to corners. Gilt lettering is darkened. Moderate sunning to spine and edges with crushing to spine ends. Visible wear marks to boards. Unclipped jacket. Panels and spine have light edgewear with tears and creases. Minor loss to spine and edges. Moderate tanning and wear marks to flaps, panels and spine.