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The Importance of Minerals, 1776-1976.
MISSING :39 pages
The Bureau of Mines published this brochure to depict a vital part of the American past and relate it to our present. The brochure presents a pictorial review of the sources and uses of many of the minerals and metals "then" (circa 1776) and "now" (1976).
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division