Twenty-sixth Edition. 704 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 is slightly loose. Boards have mild edge-wear with slight rubbing to surfaces and bumping to corners. Gilt lettering is darkened. Minor splits to spine ends and corners causing cloth to be frayed. Minor wear marks to boards.