Hewett, Donnel Foster

1881 – 1971

• Bedded deposits of manganese oxides near Las Vegas, Nevada
• Geology and mineral resources of the Ivanpah quadrangle, California and Nevada
• Geology and ore deposits of the Goodsprings quadrangle, Nevada
• Manganese ...
• Mineral resources of the region around Boulder dam
• Silver in veins of hypogene manganese oxides
• The Warm springs of Georgia, their geologic relations and origin
• Zeolites from Ritter Hot Springs, Grant County, Oregon