187.    BÉNARD, J.  [Role of Diffusion in Surface Oxidation of Iron.]  Métaux, corrosion, usure, vol. 18, No. 2, 1943, pp. 20-29; Chem. Abs., vol. 44, 1950, p. 9781.

                  Rate of oxidation of pure Fe at 250°-900° was investigated.  The chemical nature of the films formed and the mechanism of the diffusion of metal through the oxide film are discussed.