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Lehigh County Pennsylvania

  • You have access
    On the discovery of Lower Silurian fossils in limestone associated with hydromica slates, and on other points in the geology of Lehigh and Northampton counties, eastern Pennsylvania
    F. Prime
    American Journal of Science April 1878, s3-15 (88) 261-269; DOI: https://doi.org/10.2475/ajs.s3-15.88.261
  • You have access
    On the occurrence of the brown hematite deposits of the Great Valley
    Frederick Prime
    American Journal of Science June 1875, s3-9 (54) 433-440; DOI: https://doi.org/10.2475/ajs.s3-9.54.433

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