00940cam a22002531  4500001001300000003000400013005001700017008004100034010001700075035001900092040004300111042001200154050002300166100005600189245010200245260006600347300006300413490006600476500002200542500003900564504003000603650003600633999001700669gs 20000004 DLC20260227111324.0770423s1919    paubf    b   s000 0 eng c  ags 20000004   a(OCoLC)2910680  aU.S. Geol. survey. LibrarycNAlfCdDLC  apremarc00aGA61.P4bA5 no. 121 aFettke, Charles R.q(Charles Reinhard),d1888-1959.10aGlass manufacture and the glass sand industry of Pennsylvania,cby Charles Reinhard Fettke, Ph.D.  aHarrisburg, Penna.,bJ. L. L. Kuhn, printer,c1918 [i.e.1919]  a278 p.bCVII pl. (part fold., incl. maps, diagrs.)c23 cm.0 aPennsylvania. Topographic and geologic survey. Report no. XII  aCover dated 1919.  aMany plates printed on both sides.  aBibliography: p. 264-270. 0aGlass manufacturezPennsylvania  c25975d25975