First report of progress in the anthracite coal region. the geology of the Panther Creek basin or eastern end of the southern field. By Chas. A. Ashburner

First report of progress in the anthracite coal region. the geology of the Panther Creek basin or eastern end of the southern field. By Chas. A. Ashburner

English

First report of progress in the anthracite coal region. the geology of the Panther Creek basin or eastern end of the southern field. By Chas. A. Ashburner

Ashburner Charles A. (Charles Albert) .

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