01094cam a22002651i 4500001001300000003000400013005001700017008004100034010001700075035001900092040003400111042001200145043001200157050002100169100003300190245013800223260004400361300008900405410005200494500007500546500006300621650006200684650006500746999001700811gs 07000554 DLC20260227111306.0790302s1906    dcuab        f001 0 eng    ags 07000554   a(OCoLC)4706155  aDLCcPClSdICharEdOCoLCdDLC  apremarc  an-us-pa00aQE75b.B9 no.2861 aWoolsey, Lester Hood,d1877-10aEconomic geology of the Beaver Quadrangle, Pennsylvaniab(southern Beaver and northwestern Allegheny counties)cby Lester H. Woolsey.  aWashington :bGovt. print. off.,c1906.  avi, 132, vi p. :bill., viii pl. (part fold., incl. map in pocket) diagrs. ;c24 cm.20aGeological Survey (U.S.).tBulletin ;vno. 286.  aSubject series : A. Economic geology, 74.  B. Descriptive geology, 93.  aIssued also as House doc. no. 834, 59th Cong., 2d session. 0aMines and mineral resourceszPennsylvaniazBeaver County. 0aMines and mineral resourceszPennsylvaniazAllegheny County.  c24599d24599