Keller, E., “A Study of the Elimination of Impurities from Copper Mattes in the Reverberatory and the Converter.” Mineral Industry, 1900, vol. ix., p. 240.

Mathewson, E. P., “The Relative Elimination of Iron, Sulphur, and Arsenic in Bessemerising Copper Mattes.” Bull. Amer. Inst. Min. Eng., 1907, Jan. 7, No. 13, p. 7.

Offerhaus, C., “Operation of an Anaconda Converter.” Eng. and Min. Journ., 1908, Oct. 17, p. 747.

Levy, D. M., “The Successive Stages in Bessemerising Copper Matte as indicated by the Converter Flame.” Trans. Inst. Min. and Met., 1910., vol. xx., p. 117.

Hixon, H., “Notes on Lead and Copper Converting.”

Semple, Clarence C., “Analyses of Converter Fume.” Eng. and Min. Journ., 1911, Mar. 11, p. 508.

Haas, Herbert, “The Vortex Copper Converter.” Eng. and Min. Journ., 1910, May 7, p. 972.


LECTURE IX.
The Purification and Refining of Crude Copper.