Iron Oxide Mineral Pigments of the United States (open access)

Iron Oxide Mineral Pigments of the United States

From Summary: "This report reviews the occurrence of mineral pigments and allied iron ores and the nomenclature and common methods of classifying and testing many commercial mineral pigments used in this country."
Date: 1933
Creator: Wilson, Hewitt
System: The UNT Digital Library
Miocene Foraminifera of the Coastal Plain of the Eastern United States (open access)

Miocene Foraminifera of the Coastal Plain of the Eastern United States

From introduction: In the following report the species of Foraminifera found in the Miocene of the Coastal Plain region of the eastern United States from Florida to Maryland are described and recorded. Numerous papers have been published on this region, some of which, however, are largely lists. Where the original material on which a paper was based has not been available for the present study, the records have been omitted, as it is very difficult to place the species in their proper position without seeing the actual specimens.
Date: 1933
Creator: Cushman, Joseph A. & Cahill, Edgar D.
System: The UNT Digital Library
Lode Deposits of the Fairbanks District, Alaska (open access)

Lode Deposits of the Fairbanks District, Alaska

From abstract: To help the mining industry of Alaska and to assist in the development of the mineral resources of the Territory have been the prime motives of the Geological Survey's investigations in Alaska during the past 35 years, in which nearly one half of the Territory has been covered by its reconnaissance and exploratory surveys. It was natural, therefore, that the Alaska Railroad, when it undertook intensive consideration of the problem of finding tonnage that would increase its revenues, should look to the Geological Survey to supply technical information as to the known mineral deposits along its route and to indicate what might be done to stimulate a larger production of minerals and induce further mining developments and prospecting that would utilize its service.
Date: 1933
Creator: Hill, James M.
System: The UNT Digital Library