01942oam 2200601I 450 991070372290332120150608151956.0(CKB)5470000002434495(OCoLC)882401788(OCoLC)903068836(EXLCZ)99547000000243449520140701d1913 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierThe enrichment of sulphide ores /by William Harvey Emmons[Washington, D.C.] :Department of the Interior, United States Geological Survey,1913.Washington :Government Printing Office.1 online resource (260 pages)Bulletin / Department of the Interior, United States Geological Survey ;529Title from title screen (viewed June 30, 2014).Includes bibliographical references and index.GeologyNorth AmericaMines and mineral resourcesNorth AmericaSulfidesNorth AmericaChemistry, InorganicChemistry, InorganicfastGeologyfastMines and mineral resourcesfastSulfidesfastNorth AmericafastGeologyMines and mineral resourcesSulfidesChemistry, Inorganic.Chemistry, Inorganic.Geology.Mines and mineral resources.Sulfides.Emmons William H(William Harvey),1876-1948,270811Geological Survey (U.S.),COPCOPOCLCOOCLCFOCLCAOCLCEGPOBOOK9910703722903321The enrichment of sulphide ores3500298UNINA