2407.     NAUSS, O.  [Enhancing the Value of Coal.]  Gas-u. Wasserfach, vol. 70, 1927, pp. 832-834; Chem. Abs., vol. 21, 1927, p. 3728.

        Review of the use of coal as a raw material for the production of low-temperature coke, tar, oils, and gas of high calorific value, as well as the hydrogenation of coal (Bergius process) and the Fischer synthesis of hydrocarbons