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You searched for: Creator Commonwealth Of Pennsylvania Remove constraint Creator: Commonwealth Of Pennsylvania Resource Type Book Remove constraint Resource Type: Book
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  1. Report of the Department of Mines - 1925-1926 - bituminous

    Resource Type: Book
    Creator: Commonwealth of Pennsylvania
    Keyword: Pennsylvania Department of Mines
    Object Type: GenericWork
    Date Uploaded: 2014-09-28T23:55:41Z
  2. Report of the Department of Mines - 1923-24 - bituminous

    Resource Type: Book
    Creator: Commonwealth of Pennsylvania
    Keyword: Pennsylvania Department of Mines
    Object Type: GenericWork
    Date Uploaded: 2014-09-28T23:55:40Z
  3. Fifth Annual Report - Mineral statistics of PA - 1876-77

    Resource Type: Book
    Creator: Commonwealth of Pennsylvania
    Keyword: Pennsylvania Department of Mines
    Object Type: GenericWork
    Date Uploaded: 2014-09-28T23:55:38Z
  4. Third Annual Report - Mineral statistics of PA - 1874-75

    Resource Type: Book
    Creator: Commonwealth of Pennsylvania
    Keyword: Pennsylvania Department of Mines
    Object Type: GenericWork
    Date Uploaded: 2014-09-28T23:55:36Z
  5. First Annual Report - Mineral statistics of Pennsylvania - 1872-73

    Resource Type: Book
    Creator: Commonwealth of Pennsylvania
    Keyword: Pennsylvania Department of Mines
    Object Type: GenericWork
    Date Uploaded: 2014-09-28T23:55:34Z
  6. Fog Characteristics and Modification Concepts

    Resource Type: Book
    Creator: Commonwealth of Pennsylvania
    Keyword: Coal Reserach Section and National Science Foundation Report
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T22:07:45Z
  7. Possibility of Finding Gas in the Oriskany Sand in McKean County

    Resource Type: Book
    Creator: Commonwealth of Pennsylvania
    Keyword: PAGS Progress Reports
    Language: English
    Location: McKean County, Pennsylvania, United States
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:39:18Z
  8. A Stratigraphic Time Scale

    Resource Type: Book
    Creator: Commonwealth of Pennsylvania and Ashley, George H.
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:39:05Z
  9. The Age and Origin of the Earth

    Resource Type: Book
    Creator: Commonwealth of Pennsylvania and Ashley, George H.
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:39:03Z
  10. PAGS Progress Report no.182 sheet 4.pdf

    Resource Type: Book
    Creator: Commonwealth of Pennsylvania
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-18T00:57:36Z