Showing 1 - 4 results of 4 for search '"authority"', query time: 0.32s Refine Results
  1. 1
    Volatile matter of coal.
    Published 1910
    Subjects: “...Coal mines and mining. http://id.loc.gov/authorities/subjects/sh85027364...”
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  2. 2
    Weathering of Pittsburgh coal bed at experimental mine near Bruceton, Pa.
    Published 1914
    Subjects: “...Coal mines and mining. http://id.loc.gov/authorities/subjects/sh85027364...”
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    Government Document eBook
  3. 3
    Deterioration and spontaneous heating of coal in storage, preliminary report.
    Published 1912
    Subjects: “...Coal reserves. http://id.loc.gov/authorities/subjects/sh85027325...”
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    Government Document eBook
  4. 4
    Escape of gas from coal.
    Published 1911
    Subjects: “...Coal mines and mining. http://id.loc.gov/authorities/subjects/sh85027364...”
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    Government Document eBook
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