Report of progress in the Venango county district. By John F. Carll. Observations on the geology around Warren. By F. A. Randall. Note on the comparative geology of northern Ohio and north-western Pennsylvania and western New York. By J. P. Lesley.

Notes:
3 p. l., [I3]-I 127 p. front., illus., fold. pl., maps (part fold.) diagrs. 22 1/2cm., At head of title: Second geological survey of Pennsylvania: 1874., and Folded plate and maps in pocket.
Data Provider:
University of Michigan. Libraries
Collection:
Harrisburg,: Pub. by the Board of commissioners for the Second geological survey, and Ann Arbor, Michigan: University of Michigan Library
Subject Topic:
Geology -- Pennsylvania and Petroleum -- Pennsylvania.
Language:
eng
Rights:
http://quod.lib.umich.edu/t/text/accesspolicy.html
URL:
http://name.umdl.umich.edu/AKA2071.0001.001