Technical Report Archive & Image Library (TRAIL) - 356 Matching Results

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Revision of the Pocket Gophers of the Genus Thomomys

Description: Describes habits, predators, morphology, sexual variation, pelages, and distribution of pocket gophers. Describes genera and group relations. Describes, lists locations and distribution, and provides a key for species and subspecies.
Date: November 15, 1915
Creator: Bailey, Vernon
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Fuel-Briquetting Investigations, July, 1904, to July, 1912

Description: Report discussing a series of fuel-testing investigations that U.S. Geological Survey began in 1904 for the purpose of analyzing and testing the coals and lignites in the United States in order to determine their fuel values and the most efficient methods of utilizing them for different purposes. Types of tests undertaken included chemical analyses, steaming tests, gas-producer tests, briquetting tests, coking tests, and washing tests of samples collected from the various coals fields of the co… more
Date: September 1913
Creator: Wright, C. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Abstracts of Current Decisions on Mines and Mining: May to August, 1917

Description: Bulletin issued by the U.S. Bureau of Mines: "This publication is devoted exclusively to a review and abstracts of decisions based on the laws governing the rights and duties of mine owners, operators, miners, and persons trafficking in all kinds of mining properties. It includes abstracts of current decisions of all the Federal and State courts of last resort on questions relating to the mining industries" (Bulletin 61, p. 9).
Date: December 1917
Creator: Thompson, J. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Prospecting and Mining of Copper Ore at Santa Rita, New Mexico

Description: Report discussing techniques for the mining of large masses of low-grade ores such as though found in Santa Rita, NM. It is hoped that a study of the methods used at Santa Rita will help engineers in other industries who may have to handle large masses of material.
Date: September 1916
Creator: MacDonald, Donald F. & Enzian, Charles
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Gold Dredging in the United States

Description: 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
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Approved Electric Lamps for Miners

Description: Report describing the development of a number of types of lamps for miners that meet the requirements of the Bureau of Mines. Discusses the features and qualities of these lamps in detail.
Date: July 1917
Creator: Clark, H. H. & Ilsley, L. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Transmission of Heat into Steam Boilers

Description: Report discussing the results of investigations into the heat-absorbing abilities of the heating surfaces of boilers. Also discusses the laws that determine the rate of heat transfer from furnace gases through metal plates into boiler water and offers suggestions as to how these laws may be applied.
Date: 1912
Creator: Kreisinger, Hengry & Ray, Walter T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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First National Mine-Safety Demonstration, Pittsburgh, PA., October 30 and 31, 1911

Description: Report discussing the first national mine-safety demonstration in Pittsburgh, Pennsylvania, for the purpose of aiding the increase of safety in the mining industry. The demonstration was conceived as a means of encouraging the adoption of first-aid instruction or instruction in the use of artificial breathing devices and life-saving apparatus. This bulletin is intended for those who were unable to attend the demonstration.
Date: 1912
Creator: Wilson, Herbert M. & Fay, Albert H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Methods of Shutting Off Water in Oil and Gas Wells

Description: Report discussing methods of shutting off water in oil and gas wells in California, the Midwest, and the Gulf. Emphasis is on the methods used in California and suggestions for modifying California methods to make them applicable in other localities.
Date: October 1918
Creator: Tough, F. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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War Minerals Nitrogen Fixation and Sodium Cyanide

Description: Report discussing the results of the Bureau of Mines' investigations into questions of priority, transportation, fuel, equipment, construction of highways and roads, labor supply, best practices for mining, and the development of new materials in the production of war minerals. Produced for the War Industries Board, the U.S. Shipping Board, and other government establishments.
Date: June 1918
Creator: Manning, Van. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Systematic Synopsis of the Muskrats

Description: From introduction: "Systematic account of the genus Fiber through study of over 1,000 specimens, chiefly well-prepared skins, accompanied by skulls, together with many odd skulls and skeletons."
Date: April 29, 1911
Creator: Hollister, N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Life Zone Investigations in Wyoming

Description: Characterizes five transcontinental life zones in Wyoming; defines their extent and limits; lists mammal, breeding bird, reptile, amphibian, and plant species; and provides notes on distribution and abundance of trees observed during the survey.
Date: October 3, 1917
Creator: Cary, Merritt
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Electrolysis and its Mitigation

Description: Technical paper issued by the Bureau of Standards over studies conducted on electrolysis. As stated in the introduction, "this investigation has included a study of the physical laws governing electrolytic and self-corrosion in soils, an extended investigation of the effects of electric currents on plain and reinforced concrete, and a study of the work of previous investigators relating to the subject of electrolysis and its prevention" (p. 5). This paper includes tables, illustrations, and pho… more
Date: November 25, 1918
Creator: Rosa, Edward B. & McCollum, Burton
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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New Forms of Instruments for Showing the Presence and Amount of Combustible Gas in the Air

Description: Scientific paper issued by the Bureau of Standards over the detection of combustible gases in the air. The design and development of new detection equipment is discussed. This paper includes tables, photographs, and illustrations.
Date: June 23, 1919
Creator: Weaver, E. R. & Weibel, E. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Effect of Rate of Temperature Change on the Transformations in an Alloy Steel

Description: Scientific paper issued by the Bureau of Standards over studies conducted on the effects of temperature change on alloy steel. The experimental methods used and the results are presented and discussed. This paper includes tables, photographs, and illustrations.
Date: July 10, 1919
Creator: Scott, Howard
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Thermal Expansion of Insulating Materials

Description: Scientific paper issued by the Bureau of Standards over studies on thermal expansion. Expansivity tests are conducted on many different insulating materials. The results of the tests are discussed. This paper includes tables, photographs, and illustrations.
Date: December 27, 1919
Creator: Souder, Wilmer H. & Hidnert, Peter
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Cost Keeping for Small Metal Mines

Description: Technical paper issued by the Bureau of Mines over the accounting for small metal mines. As stated in the introduction, "this report outlines methods of cost keeping suitable for metal mines of small or moderate size and presents various forms and cost sheets that have been found useful in actual practice" (p. 5). This paper includes tables, and illustrations.
Date: February 1919
Creator: Pickering, J. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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