368.     BRODIE, G. H., JENNINGS, W. H., AND HAYES, A.  Heat of Formation of Cementite as Electrolyzed From a Pure Iron-Carbon Alloy of Eutectoid Structure and Composition.  Trans. Am. Soc. Steel Treating, vol. 10, 1926, pp. 615-629; Chem. Abs., vol. 21, 1927, p. 3878.

      Value of –13,580 cal. per gm. mol. was obtained at 86° F. by calorimetric determination of the heat of formation of Fe₃C.

       BRODKORB, F.  See abs. 1786, 1787.