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  1. Roofing Granules Industry in Southeastern Pennsylvania

    Resource Type: Book
    Creator: Stone, R. W.
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:39:01Z
  2. Volatile Matter in Pennsylvania Coals

    Resource Type: Book
    Creator: Sisler, James D.
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:39:01Z
  3. The Living Earth

    Resource Type: Book
    Creator: Ashley, George H.
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:39:01Z
  4. Tidioute Oil Pool, Warren County, PA.

    Resource Type: Book
    Creator: Johnson, Meredith E.
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:39:00Z
  5. Gas in Leidy Township, Clinton County, Pennsylvania

    Resource Type: Book
    Creator: Meredith E. Johnson
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:38:59Z
  6. Gold in Pennsylvania

    Resource Type: Book
    Creator: J. Ross Corbin
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:38:58Z
  7. Calcareous Marl in Pennsylvania South of the Terminal Moraine

    Resource Type: Book
    Creator: J. B. R. Dickey
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:38:57Z
  8. Rocks of the Quarryville Quadrangle, Pennsylvania

    Resource Type: Book
    Creator: Anna I. Jonas
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:38:57Z
  9. Chromite in Pennsylvania

    Resource Type: Book
    Creator: J. Ross Corbin
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:38:56Z
  10. Oil and gas in Southeast Pennsylvania

    Resource Type: Book
    Creator: George H. Ashley
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:38:56Z
  11. Flagstone Industry in Northeastern Pennsylvania

    Resource Type: Book
    Creator: R.W. Stone
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:38:55Z
  12. Zinc Ores at Friendensville, Lehigh County, Penna

    Resource Type: Book
    Creator: Miller, Benjamin LeRoy
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:38:54Z
  13. Lead and Zinc Ores in Bucks County, Pennsylvania

    Resource Type: Book
    Creator: Miller, Bejamin LeRoy
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:38:54Z
  14. Copper Ores in Pennsylvania

    Resource Type: Book
    Creator: Corbin, J. Ross
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:38:54Z
  15. Lead and Zinc Ores near Phoenixville, Chester County, Pennsylvania

    Resource Type: Book
    Creator: Miller, Benjamin LeRoy
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:38:53Z
  16. Lead and Zinc Ores in Lancaster County, Pennsylvania

    Resource Type: Book
    Creator: Miller, Bejamin LeRoy
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:38:53Z
  17. Coal Beds in Southern Somerset County, Pennsylvania

    Resource Type: Book
    Creator: Sisler, J.D.
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:38:52Z
  18. Rocks of the McCalls Ferry Quadrangle, Penna.

    Resource Type: Book
    Creator: Jonas, Anna I.
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:38:51Z
  19. Lead and Zinc ores in Blair County, Penna.

    Resource Type: Book
    Creator: Bejamin LeRoy Miller
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:38:51Z
  20. Brown Iron Ores in Pennsylvania

    Resource Type: Book
    Creator: J. Ross Corbin
    Keyword: PAGS Progress Reports
    Publisher: Pennsylvania Bureau of Topographic and Geologic Survey
    Object Type: GenericWork
    Date Uploaded: 2014-09-25T00:38:51Z