1961. Ninth Edition. 522 pages. Illustrated dust jacket over red cloth boards with lettering. Slight crinkling to paper at gutter. Clean pages with light tanning and foxing to text block edges. Binding is firm throughout with minor thumb-marking. Heavier tanning and foxing to free endpapers and pastedowns. Pen and pencil inscription and markings to front free endpaper. Boards have moderate edge-wear with bumping to corners and rubbing to surfaces. Slight crushing to spine ends. Lettering is clear. Moderate sunning to spine and edges. Visible wear marks to boards. Unclipped Jacket. Panels and spine have light edgewear with tears and creases. Heavy sunning to flaps, panels and spine.