1964. Ninetieth Edition. 783 pages. Red dust jacket over black cloth. Pages are lightly tanned and foxed throughout, heavier to endpapers. Occasional thumb-marking present. Binding is slightly shaky. Boards have mild edge wear with slight rubbing to surfaces. Soft crushing to spine ends. Light tanning to spine and edges. Speckled white marking and some dust to boards. Book is slightly bowed and forward leaning. Unclipped jacket has moderate edge wear with chips, tears and creasing. Mild sunning to spine and edges. Minor dark marking to all surfaces and panel edges.