01195cam a22003131 4500 gs 33000082 DLC 20260227111337.0 770221s1931 nvuab 000 0 eng c gs 33000082 (OCoLC)2752413 U.S. Geol. Survey. Libr. TxEU OCoLC DLC premarc TN490.M3 H55 553.46 Hewett, Donnel Foster, 1881-1971. Bedded deposits of manganese oxides near Las Vegas, Nevada, by D.F. Hewett ... [and] B.N. Webber ... Reno, University of Nevada [1931] 17 p., 1 l. incl. map, diagr. 23 cm. University of Nevada bulletin, vol. XXV, no. 6, August 1, 1931 At head of title: Bulletin of Nevada State Bureau of Mines and Mackay School of Mines. In cooperation with the United States Geological Survey. Manganese ores Nevada. Manganese oxides. Webber, B. N. (Benjamin Nevitt), 1899- joint author. Nevada Bureau of Mines. Geological Survey (U.S.) University of Nevada. Mackay School of Mines. 27012 27012