00903cam a22002411  4500001001300000003000400013005001700017008004100034010001700075035001900092040005000111050002200161100003600183245014900219260004800368300003100416490005200447500006400499650002100563650003500584650002500619999001700644gs 37000085 DLC20260227111341.0760430s1937    dcu          f000 0 eng c  ags 37000085   a(OCoLC)2148550  aU. S. Geol. survey.  LibrarycViUdOCoLCdDLC00aQE75b.B9 no. 8781 aWells, Roger Clark,d1877-1944.10aAnalyses of rocks and minerals from the laboratory of the United States Geological Survey, 1914-36,ctabulated by Roger C. Wells, chief chemist.  aWashington,bU.S. Govt. Print. Off.,c1937.  ax, 134 p.btables.c23 cm.0 aUnited States.  Gelogical survey.  Bulletin 878  aAt head of title: United States Department of the Interior. 0aRocksxAnalysis. 0aOresxSampling and estimation. 0aChemistry, Analytic.  c27338d27338