01547oam 2200529 450 991071156970332120181101112641.0(CKB)5470000002484353(OCoLC)953105137(OCoLC)995470000002484353(EXLCZ)99547000000248435320160706d1933 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierThe bleaching clays /by P. G. NuttingWashington :United States Department of the Interior, Geological Survey,1933.1 online resource (51 pages) illustrationsCircular ;3Includes bibliographical references.Clay mineralsFuller's earthOptical brightenersBleaching materialsClay mineralsfastFuller's earthfastOptical brightenersfastClay minerals.Fuller's earth.Optical brighteners.Bleaching materials.Clay minerals.Fuller's earth.Optical brighteners.Nutting P. G(Perley Gilman),1873-1415245Geological Survey (U.S.),COPCOPOCLCOOCLCFGPOBOOK9910711569703321The bleaching clays3519459UNINA