217. ---------------. [New Views on the Chemical Utilization of Coal.] Bull. soc. encour, ind. nat., vol. 127, 1928, pp. 822-854; Bull. soc. ing. civ. France, vol. 81, 1928, pp. 1105-1181; British Chem. Abs., 1929, B. p. 344; Chem. Abs., vol. 23, 1929,

217. ---------------. [BERTHELOT, C.] [New Views on the Chemical Utilization of Coal.] Bull. Soc. Encour, Ind. Nat., vol. 127, 1928, pp. 822-854; Bull. Soc. Ing. Civ. France, vol. 81, 1928, pp. 1105-1181; British Chem. Abs., 1929, B. p. 344; Chem. Abs., vol. 23, 1929, p. 2012.

General review of the coal question, the following being briefly considered: (a) General methods for the chemical utilization of coal including high- and low-temperature carbonization, hydrogenation, reduction of CO with Badische Anilin- und Soda-Fabrik patents of 1913-1914, synthesis of MeOH. Patart’s patent, Fischer-s synthol, Fischer’s and Tropsch’s hydrocarbons, Kling and Florentin’s process, and Bergius process; (b) N₂ question including preparation of (NH₄)₂SO₄ from gypsum, mixed fertilizers, (NH₄)₂-HPO₄, and Claude’s “potazote;” (c) the general organization for fuel and synthetic NH₃ manufacture, with some Norwegian, Italian, German, and French financial data.