00929cam a22002411  4500001001300000003000400013005001700017008004100034010001700075035001900092040001900111042001200130050001700142100004300159245012000202260002900322300001800351410007100369500020600440650001400646650001000660999001700670gs 42000234 DLC20260227111348.0790608s1942    ilua         s000 0 eng    ags 42000234   a(OCoLC)5048466  aDLCcTxCMdDLC  apremarc00aTN948.F3bW51 aWillman, H. B.q(Harold Bowen),d1901-10aFeldspar in Illinois sands, a study of resources,cby H. B. Willman. Printed by authority of the state of Illinois.  aUrbana, Illinois,c1942.  a87 p.billus.20aIllinois State Geological SurveytReport of investigationsvno. 79  aAt head of title: State of Illinois, Dwight H. Green, Governor. Dept. of Registration and Education, Frank G. Thompson, Director. Division of the State Geological Survey, M. M. Leighton, Chief, Urbana. 0aFeldspar. 0aSand.  c27819d27819