1960. Revised Edition. 110 pages. Illustrated dust jacket over blue cloth boards. Gilt lettering. Clean pages with light tanning and mild foxing throughout. Moderate tanning to free endpapers due to dust jacket flaps. Binding remains firm. Boards have mild edge-wear with slight rubbing to surfaces and bumping to corners. Gilt lettering is darkened. Minor wear marks to boards. Unclipped jacket. Panels and spine have light edgewear with tears and creases. Visible wear marks to spine and panels.