"Chemistry, Analytic." . . "Geological Survey (U.S.)," . . "Rocks -- Analysis." . . "Rocks Analysis." . "Ores Sampling and estimation." . . "Geochemie." . . . . . . "Analyses of rocks and minerals, 1914-36"@en . "Analyses of Rocks and Minerals from the Laboratory of the United States Geological Survey, 1914-36. Tabulated by R.C. Wells"@en . . . . . . . . . . . . . "Analyses of rocks and minerals from the laboratory of the United States Geological survey, 1914-36"@en . . . . "Analyses of Rocks and Minerals from the Laboratory of the United States Geological Survey, 1914-36. Tabulated by R. C. Wells" . . . . . . . . . "Analyses of rocks and minerals from the laboratory of the United States Geological Survey, 1914-36" . . "Analyses of rocks and minerals from the Laboratory of the United States Geological Survey : 1914 - 36" . "Analyses of rocks and minerals from the laboratory of the United States Geological Survey, 1914-36"@en . . "Mineral analysis." . . "Verenigde Staten van Amerika." . . . .