1950. Deuxieme Edition. 903 pages. No dust jacket. Green cloth to spine with pictorial paper covered boards. 'Classes De Mathematiques et de Philosophie'. Pages are moderately tanned and foxed throughout. Binding remains firm. Pen inscription to front free endpaper. Boards have moderate edge-wear with bumping to corners and rubbing to surfaces. Water staining to boards has led to heavy creasing. Boards are warped.