2698.     ---------------.  [PIER, M.]  [Synthetic Motor Fuel and Oils.]  Oel u. Kohle Erdoel Teer, vol. 13, 1937, pp. 622-624; Brennstoff-Chem., vol. 18, 1937, p. 402; Chem. Abs., vol. 31, 1937, p. 8874.

        Review of the Bergius and the Fischer-Tropsch processes.