Geological Survey of Pennsylvania creator Pennsylvania Board of Commissioners for the Second Geological Survey. text pau Harrisburg Board of Commissioners for the Second Geological Survey 1875-91 1875 monographic eng

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109 v. illus., plates (part fold.) maps (part fold.) fold. plans, fold. tables, diagrs. 22-24 cm. 35 vols. are atlases. Several volumes have no general title. J. Peter Lesley, State Geologist. A list of these reports with index may be found in the appendix to "A general index of the Final summary report of the geology of Pennsylvania," 1895. Appendix A to Report of progress R (not listed in above index) was issued in 1881 with title: Drillings for coal in Sergeant Township, McKean County. A correspondence by N. F. Jones, J. P. Lesley, and Chas. A. Ashburner. Geology Pennsylvania Coal Pennsylvania QE157 .A16 gs 07000693 DLC 760426 20260227111306.0 gs 07000693