01019cam a22002651i 4500001001300000003000400013005001700017008004100034010001700075035001900092040002100111043001200132050002200144100004900166245008900215260004300304300007400347490004600421500007300467500002000540650007200560650005200632810005200684999001700736gs 05000908 DLC20260227111302.0790209s1905    dcuabf       f001 0 eng    ags 05000908   a(OCoLC)4636399  aDLCcICharEdDLC  an-us-pa00aQE75b.B9 no. 2561 aStone, Ralph W.q(Ralph Walter),d1876-1964.10aMineral resources of the Elders ridge quadrangle, Pennsylvania /cby Ralph W. Stone.  aWashington,bGovt. Print. Off.,c1905.  a86, v p. :bill., xii pl. (incl. fol. map in pocket) diagrs.;c24 cm.1 aU.S. Geological survey. Bulletinvno. 256  aSubject series: A, Economic geology, 51; B, Descriptive geology, 63.  aIncludes index. 0aMines and mineral resourceszPennsylvaniazElders ridge quadrangle. 0aGeologyzPennsylvaniazElders ridge quadrangle.2 aGeological Survey (U.S.).tBulletin ;vno. 256.  c24317d24317