218.    ---------------. [BERTHELOT, C.] Chemical Utilization of Coal – Its Methods of Realization.  Proc. World Eng. Cong., Tokyo, 1929, vol. 32, 1931, pp. 309-338.  Chem. Abs., vol. 26, 1932, p. 578.

                 Review of synthetic-chemical industries that depend directly on coal; Coal-hydrogenation, synthetic-MeOH, and N-fixation industries are included.