1936. Twenty-first Edition. 178 pages. Illustrated dust jacket over green cloth 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 sunning to spine and edges with crushing to spine ends. Minor wear marks to boards. Unclipped jacket. Panels and spine have moderate edgewear with chips, tears and creases. Moderate loss to spine and edges. Moderate tanning and wear marks to flaps, panels and spine.