209. BRAMWELL, F. H., AND SYNTHETIC AMMONIA & NITRATES, LTD. [Catlytic Gas Reactions.] German Patent 502,768, July 10, 1926. Chem. Abs., vol. 24, 1930, p. 5395.

In a catalytic gas reaction especially suitable for NH₃ synthesis, the gases are forced through a mass of catalyzer in an apparatus including a heat exchanger.

BRAMWYCHE, P. L. See abs. 181,182.