01446cam a22002531 4500001001300000003000400013005001700017008004100034010001700075035001900092040007200111042001200183050001500195110003900210245013700249260007700386300010200463505035700565650003900922650002700961650002400988700016301012999001701175gs 07000767 DLC20260227111306.0750801m18921895pauabf s000 0 engdc ags 07000767  a(OCoLC)1499526 aU.S. Geol. Survey. Libr.cFMUdOCoLCdICarbSdOCoLCdUUdOCoLCdDLC apremarc00aQE654b.P42 aGeological Survey of Pennsylvania.10aGeological Survey of Pennsylvania.bFinal report ordered by Legislature, 1891. A summary description of the geology of Pennsylvania. aHarrisburg,bBoard of Commissioners for the Geological Survey,c1892-95. a3 v. in 4.billus., plates, maps, diagrs.eand atlas of 14 fold. col. plates (incl. maps)c23 cm.0 av. 1. Laurentian, Huronian, Cambrian and Lower Silurian formations, by J.P. Lesley.--v. 2 Upper Silurian and Devonian formations, by J.P. Lesley.--v. 3. pt. 1. Carboniferous formations, by J.P. Lesley, E.V. d'Invilliers, and A.D.W. Smith. pt. 2. Bituminous coal fields, by E.V. d'Invilliers. The new red of Bucks and Montgomery Counties, by B.S. Lyman. 0aGeology, StratigraphicyPaleozoic. 0aGeologyzPennsylvania. 0aCoalzPennsylvania.1 aIngham, William A.q(William Armstrong),d1827-1913,ecomp.tA list of, and brief guide to, the publications of the Pennsylvania geological survey, 1874-1895. c24630d24630