Search Results - Hedges, J.H

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  1. 1
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    Possibilities of manganese production at Leadville, Colo. / by Hedges, J. H.

    Published 1940
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  2. 2
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    Minerals Yearbook, 1936. Compiled under the supervision of O.E. Kiessling and H.H. Hughes, Mineral Resources and Economics Division.

    Published 1937
    Other Authors: “…Hedges, J.H…”
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  3. 3
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    Minerals yearbook, 1938. Compiled under the supervision of H. Herbert Hughes, Economics and Statistics Branch.

    Published 1937
    Other Authors: “…Hedges, J.H…”
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  4. 4
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    Minerals Yearbook, 1937. Compiled under the supervision of H.H. Hughes, Economics and Statistics Branch.

    Published 1937
    Other Authors: “…Hedges, J.H…”
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  5. 5
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    Minerals Yearbook, 1934, [by] O.E. Kiessling, chief economist, Division of Mineral Statistics.

    Published 1935
    Other Authors: “…Hedges, J. H.…”
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  6. 6
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    Minerals Yearbook, 1932-33, [by] O.E. Kiessling, chief economist, Division of Mineral Statistics.

    Published 1933
    Other Authors: “…Hedges, J.H…”
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