The Online Books Page

Books by Ralph J. Gray:

Books in the extended shelves:

• Gray, Ralph J.: Laboratory study of a core from uranium-bearing coal in the Red Desert, Sweetwater County, Wyoming ([Washington D.C.] : United States Department of the Interior, Geological Survey, 1955., 1955), also by James M. Schopf, U.S. Atomic Energy Commission. Division of Raw Materials, and Geological Survey (U.S.) (page images at HathiTrust)
• Gray, Ralph J.: Laboratory study of high-grade uranium-bearing lignite from Harding County, South Dakota ([Washington D.C.] : United States Department of the Interior, Geological Survey, 1956., 1956), also by James M. Schopf, U.S. Atomic Energy Commission. Division of Raw Materials, and Geological Survey (U.S.) (page images at HathiTrust)
• Gray, Ralph J.: Laboratory study of uranium-bearing carbonaceous shale and impure coal from Goose Creek district, Cassia County, Idaho (U.S. Dept. of the Interior, Geological Survey, 1957), also by U.S. Atomic Energy Commission. Division of Raw Materials and Geological Survey (U.S.) (page images at HathiTrust)
• Gray, Ralph J.: Laboratory study of uranium-bearing lignite from western North Dakota and South Dakota ([Washington D.C.] : United States Department of the Interior, Geological Survey, 1955., 1955), also by James M. Schopf, Charles J. Felix, U.S. Atomic Energy Commission. Division of Raw Materials, and Geological Survey (U.S.) (page images at HathiTrust)
• Gray, Ralph J.: Microscopic studies of uraniferous coal deposits (U.S. Dept. of the Interior, Geological Survey, 1954), also by James Morton Schopf, U.S. Atomic Energy Commission. Division of Raw Materials, Geological Survey (U.S.), and USGS Coal Geology Laboratory (page images at HathiTrust)
• Gray, Ralph J.: Microscopic studies of uraniferous coal deposits : a progress report (Washington, D.C. : United States Department of the Interior, Geological Survey, 1954., 1954), also by James M. Schopf, U.S. Atomic Energy Commission. Division of Raw Materials, Geological Survey (U.S.), and USGS Coal Geology Laboratory (page images at HathiTrust)

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