1968. Second Edition. 166 pages. No dust jacket. White illustrated paper covered boards with 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. Lettering is bright and clear. Minor tanning to spine and edges with crushing to spine ends. Minor wear marks to boards.