Ocher and Ochery Earths (open access)

Ocher and Ochery Earths

Report about ocher or ochery earth, "a natural mineral pigment composed largely of clay permeated with hydrated iron (ferric oxide)" (p. 2). It includes information about the uses of choer, substitutes, artificial ocher, mining and local deposits, import and export of ocher, and related information.
Date: May 1929
Creator: Santmyers, R. M.
System: The UNT Digital Library
Estimate of Known Recoverable Reserves of Coking Coal in Allegany County, Maryland (open access)

Estimate of Known Recoverable Reserves of Coking Coal in Allegany County, Maryland

Report issued by the U.S. Bureau of Mines investigating the estimated reserves of coking coal in Allegany County, Maryland. The investigation also studied properties of coals and coal blends not widely used for metallurgical coke making. This report includes maps and tables.
Date: May 1953
Creator: Wallace, Joseph J.; Dowd, James J.; Williams, Lloyd; Abernethy, R. F. & Reynolds, D. A.
System: The UNT Digital Library
Early Operations of the Hydrogenation Demonstration Plant, Using Rock Springs, Wyoming Coal (open access)

Early Operations of the Hydrogenation Demonstration Plant, Using Rock Springs, Wyoming Coal

Report issued by the Bureau of Mines over studies conducted on a coal-hydrogenation demonstration plant. The early operations of the demonstration plant are discussed. This report includes tables, illustrations, and photographs.
Date: May 1953
Creator: Clarke, Edwin A.; Chaffee, C. C. & Hirst, L. L.
System: The UNT Digital Library
Estimate of Known Recoverable Reserves of Coking Coal in Allegany County, Maryland (open access)

Estimate of Known Recoverable Reserves of Coking Coal in Allegany County, Maryland

Report issued by the U.S. Bureau of Mines investigating the estimated reserves of coking coal in Allegany County, Maryland. The investigation also studied properties of coals and coal blends not widely used for metallurgical coke making. This report includes maps and tables.
Date: May 1953
Creator: Wallace, Joseph J.; Dowd, James J.; Williams, Lloyd; Abernethy, R. F. & Reynolds, D. A.
System: The UNT Digital Library
Geologic Factors Related to Block Caving at San Manuel Copper Mine, Pinal County, Arizona: Progress Report, April 1954-March 1956 (open access)

Geologic Factors Related to Block Caving at San Manuel Copper Mine, Pinal County, Arizona: Progress Report, April 1954-March 1956

Report issued by the Bureau of Mines over studies conducted on the geologic factors related to block-caving. The results of the study are presented. This report includes tables, maps, and illustrations.
Date: May 1957
Creator: Wilson, Eldred Dewey
System: The UNT Digital Library
Petroleum-Engineering Study of Gas Injection in Fault Blocks VB and VI, Wilmington Field, California (open access)

Petroleum-Engineering Study of Gas Injection in Fault Blocks VB and VI, Wilmington Field, California

Report issued by the Bureau of Mines over studies conducted on petroleum engineering and gas-injections in California. The results of the engineering study are presented. This report includes tables, maps, and illustrations.
Date: May 1957
Creator: Higgins, R. V. & Pierce, R. L.
System: The UNT Digital Library
Estimate of Known Recoverable Reserves of Coking Coal in Pike County, Kentucky (open access)

Estimate of Known Recoverable Reserves of Coking Coal in Pike County, Kentucky

Report issued by the U.S. Bureau of Mines to evaluate the known reserves of coking coal in Pike County, Kentucky. The properties of coal and coal blends from the area are presented. This report includes tables and maps.
Date: May 1951
Creator: Dowd, James J.; Turnbull, Louis A.; Toenges, Albert L.; Abernethy, R. F. & Reynolds, D. A.
System: The UNT Digital Library
The Electrothermic Metallurgy of Zinc (open access)

The Electrothermic Metallurgy of Zinc

Report issued by the Bureau of Mines over the electrothermic metallurgy and smelting of zinc. Different smelting methods, processes, and equipment are presented and discussed. This report includes tables, illustrations, and photographs.
Date: May 1923
Creator: O'Harra, B. Marvel
System: The UNT Digital Library
Accident Experience: Iron-Ore Mines, Lake Superior District, 1940-43 (open access)

Accident Experience: Iron-Ore Mines, Lake Superior District, 1940-43

Report issued by the U.S. Bureau of Mines discussing the iron-ore mining accident experience in the Lake Superior District. Frequency and severity rates of accidents between 1940 and 1943 are presented. This report includes tables.
Date: May 1945
Creator: Cash, Frank E. & Larsen, Reuben D.
System: The UNT Digital Library
Leaching Nonsulphide Copper Ores with Sulphur Dioxide (open access)

Leaching Nonsulphide Copper Ores with Sulphur Dioxide

Report issued by the Bureau of Mines discussing the sulfurous acid leaching of the Southwest experiment station. Operations and analyses of the experiment station are presented. This report includes tables, illustrations, and photographs.
Date: May 1923
Creator: Van Barneveld, Charles E. & Leaver, Edmund S.
System: The UNT Digital Library
Gold Dredging in the United States (open access)

Gold Dredging in the United States

Report discussing the development of gold dredging in the United States, the essential features of present-day dredges, the facts that determine whether a placer deposit can be profitably dredged, and the approved methods of prospecting placer ground and of operating dredges. Intended for designers and builders of dredges, mining engineers, and persons who may contemplate investing capital in placer-mining ventures.
Date: May 1918
Creator: Janin, Charles
System: The UNT Digital Library
Chrysotile-Asbestos Deposits of Arizona: Supplement to Information Circular 7706 (open access)

Chrysotile-Asbestos Deposits of Arizona: Supplement to Information Circular 7706

Report issued by the U.S. Bureau of Mines discussing asbestos mining and production in Arizona. As a supplement to a previous report, 18 additional Arizona mining districts are presented and described. This report includes tables, maps, illustrations, and photographs.
Date: May 1956
Creator: Stewart, Lincoln A.
System: The UNT Digital Library
Outlook and Research Possibilities for Bituminous Coal (open access)

Outlook and Research Possibilities for Bituminous Coal

Report issued by the U.S. Bureau of Mines discussing research conducted on the bituminous coal industry in the United States. As stated in the introduction, "in addition to research and development work of the coal industry, that of associated industries and coal consumers is covered" (p. 1). This report includes tables, and illustrations.
Date: May 1956
Creator: United States. Bureau of Mines.
System: The UNT Digital Library
Mining and Water-Control Methods at the Chief Lead-Zinc Mine, Chief Consolidated Mining Co., Juab County, Utah (open access)

Mining and Water-Control Methods at the Chief Lead-Zinc Mine, Chief Consolidated Mining Co., Juab County, Utah

Report issued by the U.S. Bureau of Mines discussing water-control issues at the Chief Mine in Juab County, Utah. Unique methods for water control are presented. This report includes tables, maps, illustrations, and photographs.
Date: May 1958
Creator: Young, W. E.
System: The UNT Digital Library
Names and Definitions of Regions, Districts, and Subdistricts in Alaska: Used by the Bureau of Mines in Statistical and Economic Studies Covering the Mineral Industry of the Territory (open access)

Names and Definitions of Regions, Districts, and Subdistricts in Alaska: Used by the Bureau of Mines in Statistical and Economic Studies Covering the Mineral Industry of the Territory

Report issued by the U.S. Bureau of Mines discussing the development of a naming system for Alaskan regions and districts. The structure of the naming system and a description of each district are presented. This report includes maps.
Date: May 1954
Creator: Ransome, Alfred L. & Kerns, William H.
System: The UNT Digital Library
Accepted Limit Values of Air Pollutants (open access)

Accepted Limit Values of Air Pollutants

Report issued by the U.S. Bureau of Mines discussing, as stated in the introduction, the "accepted maximum permissible concentrations of air pollutants from the standpoints of health, damage to vegetation, damage to property, and requirements of industrial processes" (p. 1). This report includes tables.
Date: May 1954
Creator: Barkley, J. F.
System: The UNT Digital Library
Procedure of the Purchasing and Supply Departments of the Miami Copper Company, Miami, Arizona (open access)

Procedure of the Purchasing and Supply Departments of the Miami Copper Company, Miami, Arizona

Report issued by the U.S. Bureau of Mines discussing the purchasing procedures documented by the Miami Copper Company in Arizona. Supplies, invoices, discounts, and accounting procedures are described in detail. This report includes tables, and illustrations.
Date: May 1932
Creator: Bishop, Fred L. & Keller, Albert E.
System: The UNT Digital Library
Manganese: Its Occurrence, Milling, and Metallurgy; Part 1 (open access)

Manganese: Its Occurrence, Milling, and Metallurgy; Part 1

Report issued by the U.S. Bureau of Mines discussing the "occurrence, milling, and metallurgy of manganese in the United States" (p. 1). Different properties and compounds of manganese are also discussed. This report includes a map, tables, illustrations, and photographs.
Date: May 1934
Creator: Dean, Reginald S.; DeVaney, Fred D. & Coghill, Will H.
System: The UNT Digital Library
Annual Report of Research and Technologic Work on Coal: Fiscal Year 1942 (open access)

Annual Report of Research and Technologic Work on Coal: Fiscal Year 1942

Report issued by the U.S. Bureau of Mines discussing studies over the research and technology of coal during 1942. As stated in the introduction, "the annual reports of the research and technologic investigations conducted by the Bureau of Mines on the occurrence, properties, mining, preparation, and uses of coal, of which the present report is the seventh, are intended to be brief summaries of progress" (p. 4). This report includes tables, illustrations, and photographs.
Date: May 1943
Creator: Fieldner, Arno Carl & Rice, W. E.
System: The UNT Digital Library
Safe Mechanical Equipment for Use in Shaft Sinking (open access)

Safe Mechanical Equipment for Use in Shaft Sinking

Technical paper issued by the Bureau of Mines over shaft sinking safety. Safe mechanical equipment and procedures are discussed. This paper includes illustrations.
Date: May 1922
Creator: Kudlich, R. H.
System: The UNT Digital Library
Suggestions for Improved Methods of Mining Coal on Indian Lands in Oklahoma (open access)

Suggestions for Improved Methods of Mining Coal on Indian Lands in Oklahoma

Technical paper issued by the Bureau of Mines over studies of Oklahoma coal mines. As stated in the introduction, "this report describes the systems of mining used, points out their defects, and presents suggestions for improved methods, more especially as regards the applicability of different modifications of the panel system to mining coal in Oklahoma" (p. 5). This paper includes tables, maps, and illustrations.
Date: May 1918
Creator: Rutledge, J. J. & Harrington, Daniel
System: The UNT Digital Library
Motor Gasoline Properties, Laboratory Methods of Testing, and Practical Specifications (open access)

Motor Gasoline Properties, Laboratory Methods of Testing, and Practical Specifications

Technical paper issued by the Bureau of Mines over studies conducted on motor gasoline. The methods, properties, and results of the studies are presented and discussed. This paper includes tables and an illustration.
Date: May 1917
Creator: Dean, E. W.
System: The UNT Digital Library
Waste of Oil and Gas in the Mid-Continent Fields (open access)

Waste of Oil and Gas in the Mid-Continent Fields

Technical paper issued by the Bureau of Mines over studies of waste in oil and gas fields in the mid-continent area. As stated in the introduction, this report "describes the general amounts and kinds of waste, and attempts to show the importance of conserving these natural resources" (p. 5). This paper includes tables, maps, illustrations, and photographs.
Date: May 1914
Creator: Blatchley, Raymond S.
System: The UNT Digital Library
The Synthetic Liquid Fuel Potential of Illinois, Volume 1 - Text (open access)

The Synthetic Liquid Fuel Potential of Illinois, Volume 1 - Text

Report documenting the suitability of Illinois for plant locations to produce synthetic liquid fuels, based on raw materials such as coal, natural gas, and oil shales.
Date: May 28, 1951
Creator: Ford, Bacon, and Davis
System: The UNT Digital Library