The geology of Centre County
By: by E. V. D'Invilliers.  Appendix A. Extracts from report to Lyon, Shorb & Co., by J. P. Lesley.  Appendix B. Observations on the geological formations, by A. L. Ewing.
Contributors: Lesley, J. P. 1819-1903.; Ewing, A. L.
Series: Pennsylvania. Geological Survey, 2d. Report of progress -- T⁴; Report of progress (Geological Survey of Pennsylvania) -- T4.
Publisher: Pub. by the Board of Commissioners for the Second Geological Survey
Published: 1884
Place of publication: Harrisburg
Language: eng
Number of pages: 464
Subjects: Geology -- Pennsylvania -- Centre County.