01813oam 2200553 450 991070380770332120150811151921.0(CKB)5470000002435659(OCoLC)882581839(EXLCZ)99547000000243565920140703d1919 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierClays and shales of Minnesota /by Frank F. Grout ; with contributions by E.K. Soper[Washington, D.C.] :Department of the Interior, United States Geological Survey,1919.Washington :Government Printing Office.1 online resource (259 pages, XVI pages of plates) illustrations, maps (some color)Bulletin / Department of the Interior, United States Geological Survey ;678Title from title screen (viewed July 3, 2014)."Work done in cooperation with the Minnesota Geological Survey."Includes bibliographical references and index.GeologyMinnesotaClayMinnesotaShaleMinnesotaClayfastShalefastMinnesotafastGeologyClayShaleClay.Shale.Grout Frank F(Frank Fitch),1880-1958,517867Soper Edgar Kirke1886-Geological Survey (U.S.),Minnesota Geological Survey,COPCOPOCLCOOCLCAOCLCFGPOBOOK9910703807703321Clays and shales of Minnesota3478514UNINA