Geology of oil and gas in relation to coal /
by George H. Ashley.

Description

Main Author

Ashley, Geo. H. (George Hall), 1866-1951.

Related Names

Pennsylvania. Bureau of Topographic and Geologic Survey.

Language(s)

English

Published

[Harrisburg] : Bureau of Topographic and Geological Survey, 1920.

Subjects

Petroleum.
Natural gas.
Coal mines and mining.
Coal mines and mining > Coal mines and mining / Pennsylvania.
Natural gas > Natural gas / Pennsylvania.
Petroleum > Petroleum / Pennsylvania.
Pennsylvania.

Note

December 1, 1920.
At head of title: Commonwealth of Pennsylvania, Department of Internal Affairs, Bureau of Topographic and Geological Survey.
Typescript.
Pa. State Docs. class. no. PY G345/4.17/8:no. 16.

Physical Description

6 leaves ; 28 cm

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