01005cam a22002651  4500001001300000003000400013005001700017008004100034010001700075035001900092040005100111042001200162050001500174100004300189245009600232260005400328300007300382490004700455500005100502500006100553650002100614700004600635710002900681710002900710gs 15000336 DLC20260227111317.0761022s1914    mnuabf   b   s000 0 eng c  ags 15000336   a(OCoLC)2522128  aU.S. Geol. survey. Library.cNAlfCdOCoLCdDLC  apremarc00aTN942b.G81 aGrout, Frank F.q(Frank Fitch),d1880-00aPreliminary report on the clays and shales of Minnesota,cby Frank F. Grout and E.K. Soper.  aMinneapolis,bThe University of Minnesota,c1914.  aviii, 175 p.billus., plates, fold. map, fold. tab., diagrs.c23 cm.0 aMinnesota. Geological survey.  Bulletin 11  aAt head of title: The University of Minnesota.  aIn cooperation with the United States geological survey. 0aClayzMinnesota.1 aSoper, Edgar Kirke,d1886-ejoint author.2 aGeological Survey (U.S.)2 aUniversity of Minnesota.