Chapter XIV

Spring's "Non-Technical Talks on Iron and Steel" (Stokes) is a model of popular science writing, clear, comprehensive and abundantly illustrated. Tilden's "Chemical Discovery in the Twentieth Century" must here again be referred to. The Encyclopedia Britannica is convenient for reference on the various metals mentioned; see the article on "Lighting" for the Welsbach burner. The annual "Mineral Resources of the United States, Part I," contains articles on the newer metals by Frank W. Hess; see "Tungsten" in the volume for 1914, also Bulletin No. 652, U.S. Geological Survey, by same author. Foote-Notes, the house organ of the Foote Mineral Company, Philadelphia, gives information on the rare elements. Interesting advertising literature may be obtained from the Titantium Alloy Manufacturing Company, Niagara Falls, N.Y.; Duriron Castings Company, Dayton, O.; Buffalo Foundry and Machine Company, Buffalo, N.Y., manufacturers of "Buflokast" acid-proof apparatus, and similar concerns. The following additional references may be useful: Stellite alloys in Jour. Ind. & Eng. Chem., v. 9, p. 974; Rossi's work on titantium in same journal, Feb., 1918; Welsbach mantles in Journal Franklin Institute, v. 14, p. 401, 585; pure alloys in Trans. Amer. Electro-Chemical Society, v. 32, p. 269; molybdenum in Engineering, 1917, or Scientific American Supplement, Oct. 20, 1917; acid-resisting iron in Sc. Amer. Sup., May 31, 1919; ferro-alloys in Jour. Ind. & Eng. Chem., v. 10, p. 831; influence of vanadium, etc., on iron, in Met. Chem. Eng., v. 15, p. 530; tungsten in Engineering, v. 104, p. 214.