1956. Third Edition. 426 pages. No dust jacket. Blue cloth boards with 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. 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.