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Churn drilling at Mary Arnold zinc-lead mines, Christian County, Mo.

Published Year

• 1940-1949 (1) *

Subject

• Boring--Missouri--Christian County (1)
• Lead mines and mining--Missouri--Christian County (1)
• Mine examination--Missouri--Christian County (1) *
• Zinc mines and mining--Missouri--Christian County (1)

Author

• Ballinger, Homer J. (1)

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