Subjects: “...Mine safety Research United States....”

Subjects: “...United States. Bureau of Mines Periodicals....”

Subjects: “...Mineral industries United States....”

Subjects: “...Feldspar United States Periodicals....”

Subjects: “...Mine safety United States Periodicals....”

Subjects: “...Mineral industries United States Periodicals....”

Subjects: “...Energy consumption United States States Statistics Periodicals....”

Subjects: “...Copper industry and trade United States Periodicals....”

Subjects: “...Sand and gravel industry United States Directories....”

Subjects: “...Sand and gravel industry United States Directories....”

Subjects: “...Slag United States Statistics Periodicals....”
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Subjects: “...Iron industry and trade United States Statistics Periodicals....”
click on "Iron and Steel Scrap"; then scroll up to "Minerals Yearbook: Iron and Steel Scrap" to access desired issue (date)

Subjects: “...Silver United States Statistics Periodicals....”
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Subjects: “...Gold mines and mining United States Statistics Periodicals....”

Subjects: “...Silicon United States Statistics Periodicals....”
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Subjects: “...Feldspar United States Statistics Periodicals....”

Subjects: “...Feldspar United States Statistics Periodicals....”
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Subjects: “...Lime industry United States Periodicals....”

Subjects: “...Lime industry United States Directories....”

Subjects: “...Fluorspar United States Statistics Periodicals....”