01294cam a22003251  4500001001300000003000400013005001700017008004100034010001700075035001900092040002600111042001200137043001200149050001800161110006100179245004400240260002300284300007300307490002100380504002900401505026100430650002100691650002400712650002000736700004300756700003600799700001900835710003700854810007700891gs 29000124 DLC20260227111333.0770510m19259999pauabf   b   s001 0 eng    ags 29000124   a(OCoLC)2951374  aDLCcNcRSdOCoLCdDLC  apremarc  an-us-pa00aTN805.P4bA451 aPennsylvania.bBureau of Topographic and Geologic Survey00aBituminous coal fields of Pennsylvania.  aHarrisburg,c1925-  av in    .billus., plates, maps (part fold.) tables, diagrs.c23 cm.1 aIts Bulletin M 6  aIncludes bibliographies.1 avol. 1, pt. 1. General information on coal, by G.H. Ashley. 1928.  pt. 2. Detailed description of coal fields, by J.D. Sisler. 1926.  pt. 3. Coal resources, by J.F. Reese and J.D. Sisler. 1928.  pt. 4. Coal analysis, prepared by U.S. Bureau of Mines. 1925. 0aBituminous coal. 0aCoalzPennsylvania. 0aCoalxAnalysis.1 aAshley, Geo. H.q(George Hall),d1866-1 aSisler, James Donaldson,d1894-1 aReese, John F.1 aUnited States.bBureau of Mines.1 aPennsylvania.bBureau of Topographic and Geologic Survey.tBulletin M 6.