History of the 27th Engineers...
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Production and Properties of...
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Lead Smelting and Refining:...
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The Metallurgy of Zinc and...
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The Metallurgy of Zinc and...
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Notes on Metallurgical Mill...
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The Mineral Industry, Its...
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The Business of Mining ...
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Notes on Metallurgical Mill...
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Wealth and Income of the...
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Lead Smelting and Refining:...
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Lead and Zinc in the United...
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