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.
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