The Trenton limestone as a source of petroleum and inflammable gas in Ohio and Indiana,
by Edward Orton
|Main Author:||Orton, Edward.|
[Washington, Govt. print. off., 1889.]
Natural gas /
Natural gas > Natural gas / Ohio.
Petroleum > Petroleum / Indiana.
Petroleum > Petroleum / Ohio.
Extract from the 8th annual report of the director of the U.S. Geological survey, 1886-87, pt. II.
7 pl. (part double, incl. maps)
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