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Summary Description of the Geology of Pennsylvania
Language: en
Pages: 719

Summary Description of the Geology of Pennsylvania

Authors: J. P. Lesley
Categories:
Type: BOOK - Published: 1892 - Publisher:

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A Summary Description of the Geology of Pennsylvania
Language: en
Pages: 2638

A Summary Description of the Geology of Pennsylvania

Authors: Geological Survey of Pennsylvania
Categories: Coal
Type: BOOK - Published: 1892 - Publisher:

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A Summary Description of the Geology of Pennsylvania: Laurentian, Huronian, Cambrian and Lower Silurian formations
Language: en
Pages: 752

A Summary Description of the Geology of Pennsylvania: Laurentian, Huronian, Cambrian and Lower Silurian formations

Authors: J. Peter Lesley
Categories: Coal mines and mining
Type: BOOK - Published: 1892 - Publisher:

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Geological Survey of Pennsylvania
Language: en
Pages: 1008

Geological Survey of Pennsylvania

Authors: Geological Survey of Pennsylvania
Categories: Coal
Type: BOOK - Published: 1895 - Publisher:

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A Summary Description of the Geology of Pennsylvania
Language: en
Pages: 948

A Summary Description of the Geology of Pennsylvania

Authors: J. Peter Lesley
Categories: Coal mines and mining
Type: BOOK - Published: 1892 - Publisher:

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