01635oam 2200505 450 991071155780332120181106080822.0(CKB)5470000002484473(OCoLC)953259214(OCoLC)995470000002484473(EXLCZ)99547000000248447320160708d1949 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierThe chromograph a new analytical tool for laboratory and field use /by Rollin E. Stevens and Hubert W. LakinWashington, D.C. :United States Department of the Interior, Geological Survey,1949.1 online resource (11 pages) illustrationsGeological Survey circular ;63"December 1949."Includes bibliographical references (page 10).Chromograph Chemical apparatusChemical tests and reagentsChemical apparatusfastChemical tests and reagentsfastChemical apparatus.Chemical tests and reagents.Chemical apparatus.Chemical tests and reagents.Stevens R. E(Rollin E.),1393677Lakin Hubert W(Hubert William),1907-1986,Geological Survey (U.S.),COPCOPOCLCOOCLCFOCLCAGPOBOOK9910711557803321The chromograph3515969UNINA