A Summary Description of the Geology of Pennsylvania; Final Report Ordered by Legislature, 1891; Volume 2 (Paperback) (ISBN-13: 9781022441644)

This comprehensive report on the geology of Pennsylvania provides valuable insights into the state's natural resources and geological features. It includes detailed descriptions of the state's rock formations, mineral resources, and physical geography. The report is essential reading for anyone interested in Pennsylvania's natural history and geology.

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