2934.     RUFF, O., BORMANN, W., AND KEILIG, F.  [Behavior of Carbon Toward Manganese, Nickel, Iron, and Cobalt.]  Forschungsarbeiten Gebiete Ingenieurwesens, No. 209, 1918, pp. 5-46; Chem. Abs., vol. 16, 1922, p. 1713.

        More extensive exposition of the data and phase rule diagrams reported in abs. 2923.