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A Report on the Economic...
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Geology of the Globe Copper...
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Preliminary Account of...
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Notes on Some Mining...
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The Geology and Ore Deposits...
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The Geology and Ore Deposits...
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Journal of the Washington...
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Geology of the Globe Copper...
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A Report on the Economic...
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Journal of the Washington...
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Geology and Ore Deposits of...
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Geology and Ore Deposits of...
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Some Lava Flows of the...
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The Association of Alunite...
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Mines of Goldfield Bullfrog...
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