01528oam 2200469 450 991070371710332120150617081257.0(CKB)5470000002434554(OCoLC)882401915(OCoLC)757657207(EXLCZ)99547000000243455420140701d1914 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierElectric activity in ore deposits /by Roger C. Wells[Washington, D.C.] :Department of the Interior, United States Geological Survey,1914.Washington :Government Printing Office.1 online resource (78 pages) illustrationsBulletin / Department of the Interior, United States Geological Survey ;548Title from title screen (viewed June 30, 2014).Includes bibliographical references and index.GeologyResearchUnited StatesOre depositsUnited StatesOre depositsfastGeologyResearchOre depositsOre deposits.Wells Roger Clark1877-1944,1389104Geological Survey (U.S.),COPCOPOCLCOOCLCEOCLCFOCLCAGPOBOOK9910703717103321Electric activity in ore deposits3477636UNINA