01011cam a22002411  4500001001300000003000400013005001700017008004100034010001700075035001900092040004200111042001200153050001600165100004500181245014200226260002400368300004300392410007100435500012300506504003200629650005900661650004900720gs 26000137 DLC20260227111330.0781023s1926    ilua     b   s000 0 eng c  ags 26000137   a(OCoLC)4311850  aU.S. Geol. survey. LibrarycKWiUdDLC  apremarc00aTN24.I3bL31 aLamar, J. E.q(John Everts),d1897-1979.10aPreliminary report of the economic mineral resources of Calhoun County /cby J. E. Lamar.  Printed by authority of the state of Illinois.  aUrbana, Ill.,c1926  a21 p.billus., tables, diagrs.c25 cm.20aIllinois State Geological SurveytReport of investigations,vno. 8  aAt head of title:  State of Illinois.  Department of Registration and Education.  Division of State Geological Survey.  aBibliographical foot-notes. 0aMines and mineral resourceszIllinoiszCalhoun County. 0aGeology, EconomiczIllinoiszCalhoun County.