LEADER 01860oam 2200553I 450 001 9910707322703321 005 20160728143224.0 035 $a(CKB)5470000002464294 035 $a(OCoLC)885121005 035 $a(EXLCZ)995470000002464294 100 $a20140802d1961 ua 0 101 0 $aeng 135 $aurn|||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 12$aA constant-feed direct-current arc /$fby C.S. Annell and A.W. Helz 210 1$aWashington, D.C. :$cUnited States Department of the Interior, Geological Survey,$d1961. 210 2$aWashington, D.C. :$cGovernment Printing Office. 215 $a1 online resource (iv, 231-251 pages) $ccharts, photographs 225 1 $aContributions to geochemistry 225 1 $aGeological Survey bulletin ;$v1084-J 300 $aAdditional title page description: "A study of methods for introducing samples into a d-c arc, accompanied by low fractional distillation." 300 $aTitle from title screen (viewed July 23, 2014). 320 $aIncludes bibliographical references (pages 250-251). 606 $aElectric arc 606 $aRocks$xAnalysis 606 $aSpectrum analysis 606 $aElectric arc$2fast 606 $aRocks$xAnalysis$2fast 606 $aSpectrum analysis$2fast 615 0$aElectric arc. 615 0$aRocks$xAnalysis. 615 0$aSpectrum analysis. 615 7$aElectric arc. 615 7$aRocks$xAnalysis. 615 7$aSpectrum analysis. 700 $aAnnell$b C. S.$01397327 702 $aHelz$b A. W. 712 02$aGeological Survey (U.S.), 801 0$bCOP 801 1$bCOP 801 2$bOCLCO 801 2$bOCLCF 801 2$bGPO 906 $aBOOK 912 $a9910707322703321 996 $aA constant-feed direct-current arc$93458798 997 $aUNINA