The geology of the oil regions of Warren, Venango, Clarion, and Butler Counties; including surveys of the Garland and Panama conglomerates in Warren and Crawford, and in Chautauqua Co., N. Y., descriptions of oil well rig and tools, and a discussion of the preglacial and postglacial drainage of the Lake Erie country, by John F. Carll.
|Main Author:||Carll, John F. 1828-1904.|
Harrisburg, Published by the Board of Commissioners for the Second Geological Survey, 1880.
At head of title: Second Geological Survey of Pennsylvania: 1875 to 1879.
xxivIII, 482III, 4 p.
front. (map) illus., plates. and atlas of fold. plates, fold. maps.
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