A RIVAL TO PLATINUM
THIS TITLE IS BESTOWED on tantalum, one of the most important rare metals produced on a commercial scale, by a writer in The Engineering and Mining Journal (New York). Says this paper:
“Its unusual resistance to chemical corrosion makes it of much value to the chemical and allied industries as a material for [...]

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MINING AND METALLURGY 1929
by SCOTT TURNER, E.M.
Director, U.S. Bureau of Mines
ONE interesting development in the mining field in 1929 has been the steady advance in prospecting methods, by which many valuable mineral deposits heretofore unknown have been discovered.
Remarkable increases in efficiency are reported at various mines developing large low-grade ore bodies. This has been achieved [...]

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THE GOLDEN POLAR SEAS
All sea water contains gold. This fact, which has been known for some time, is at present without practical value, since to extract every dollar’s worth it would be necessary to expend several dollars in labor and equipment. Under these circumstances, it is interesting, but will cause no “gold rush,” to learn [...]

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COAL’S COST IN HUMAN LIFE
TWICE IN A DECADE have coal-miners of Dawson, New Mexico, been trapt and entombed by mine explosions which snuffed out a total of 383 lives. And in both instances the mines were owned by the same corporation. In ten years, declares the New York Evening Post, “we have killed approximately 24,000 [...]

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