UNT Libraries Government Documents Department - 533 Matching Results

Search Results

Sinking a Large-Diameter Concrete-Lined Access Shaft: Harold D. Roberts Tunnel, Colorado

Description: Report issued by the U.S. Bureau of Mines discussing sinking and excavation of large-diameter access shafts. As stated in the introduction, "this information circular describes the application of modern methods and equipment in sinking a vertical, 916-foot-deep by 16-foot-diameter, concrete-lined access shaft for the Harold D. Roberts tunnel near Montezuma, Colo." (p. 1). This report includes maps, tables, illustrations, and photographs.
Date: 1961
Creator: Bolmer, R. L.

Executive Correspondence – Letters dtd 08/15/05 to Commissioners Hansen, Gehman, Coyle and Bilbray from Colorado Senator Ken Salazar

Description: Executive Correspondence – Letters dtd 08/15/05 to Commissioners Hansen, Gehman, Coyle and Bilbray from Colorado Senator Ken Salazar thanking them for hearing the testimony regarding DFAS Denver and requesting that the Commission take a hard look at all the data underpinning the Secretary’s recommendations
Date: August 23, 2005

Annual Report of Research and Technologic Work on Coal: Fiscal Year 1941

Description: Report issued by the U.S. Bureau of Mines discussing the annual report over the research and technology of coal during 1941. As stated in the foreword, "these investigations increase our fund of exact knowledge on the properties and composition of American coals and lead to better methods in mining, preparing, storing, and utilizing coal" (p. 4). This report includes tables, illustrations, photographs, and a map.
Date: November 1941
Creator: Fieldner, Arno Carl & Schmidt, L. D.

Reconnaissance of Metal Mining in the San Juan Region: Ouray, San Juan, and San Miguel Counties, Colorado

Description: Report issued by the U.S. Bureau of Mines discussing metal mines in Colorado. As stated in the summary, "this paper describes the mineral deposits and discusses mining and milling methods and related operating conditions in an important gold, silver, lead, and zinc producing area in Ouray, San Juan, and San Miguel Counties, Colo., embracing 250 square miles" (p. 5). This report includes tables, maps, and illustrations.
Date: March 1950
Creator: King, William H. & Allsman, Paul T.

The Gasoline Situation

Description: Report issued by the Bureau of Mines discussing the demands on the oil industry due to an increase in automobiles in the United States. Improvements in drilling methods and refinery practices are presented. This report includes a table.
Date: March 1926
Creator: Hill, Harry H.

Treatment of the Tungsten Ores of Boulder County, Colo.

Description: Report discussing the the development of milling practice in Boulder County, the ore-dressing methods in use, and the local manufacture of ferrotungsten and tungstic oxide. Figures giving the production of tungsten concentrates in the Boulder district, in the United States, and in the world; data on the buying of tungsten ores; costs of production; and the normal tungsten requirements in this country are presented.
Date: October 1921
Creator: Bonardi, J. P. & Williams, J. C.

Reserves, Petrographic and Chemical Characteristics, and Carbonizing, Properties of Coal Occurring South of Dry Fork of Minnesota Creek, Gunnison County, Near Paonia, Colorado, and the Geology of the Area

Description: Report issued by the Bureau of Mines discussing the geology, chemical, and carbonizing properties of Gunnison County coal reserves in Colorado. Results and analyses of the investigations conducted on the coal reserves are presented in detail. This report includes tables, maps, illustrations, and photographs.
Date: 1949
Creator: Toenges, Albert L.; Dowd, James J.; Turnbull, Louis A.; Davis, J. D.; Smith, H. L. & Johnson, Vard H.

Advice to Forest Planters in the Plains Regions

Description: "Advice about tree planting to provide a windbreak and a supply of firewood, fence posts, and wood for repairs should be especially valuable to the settler in the Plains region. This bulletin gives advice that will enable him to select the species of trees that will bring the most profitable returns without overburdening him with care. Following the description of each species of tree adapted to the region, the points to be avoided in connection with its planting are summarized in a few concise 'dont's.' Information and advice also are given regarding time for planting, methods of cultivation, pruning, etc." -- p. 2
Date: 1917
Creator: Smith, Seward Dwight, 1880-

Growing Winter Wheat on the Great Plains

Description: "This bulletin is intended to answer the requests for information on the production of winter wheat on the Great Plains under dry-farming conditions that arise from the stimulus of a present and prospective price much higher than that under which the agriculture of the section has been developed and from the campaign for a large increase in the crop to meet the necessities of war conditions." -- p. 3. Topics discussed include wheat varieties and seeding.
Date: 1917
Creator: Chilcott, E. C. (Ellery Channing), 1859-1930 & Cole, John S. (John Selden)

The Durum Wheats

Description: Report discussing the different varieties of durum wheat, their various uses, and areas to which they are best adapted. Among the varieties discussed are Kubanka, Arnautka, Mindum, Buford, Acme, Monad, Marouani, Pentad, and Peliss.
Date: 1923
Creator: Clark, J. Allen (Jacob Allen), b. 1888 & Martin, John H. (John Holmes), 1893-

Emmer and Spelt

Description: Report describing the types of wheat known as emmer and spelt, which are not widely grown in the United States and differ from other types of wheat in that most of the kernel is not removed from the chaff during threshing. The history, distribution, adaptation, varieties, culture, harvesting and threshing, and uses of both emmer and spelt are discussed.
Date: 1924
Creator: Martin, John H. (John Holmes), 1893- & Leighty, C. E. (Clyde Evert), b. 1882

Dodder

Description: Report discussing the weed commonly known as dodder or love vine and methods for controlling it. If procedures are properly followed, eradication of the weed in the United States is possible. Topics include varieties of dodder and plants that susceptible to attack by it, its life cycle, and ways it is unintentionally introduced to farms.
Date: 1921
Creator: Hansen, A. A.

Potato Culture on Irrigated Farms of the West

Description: "In the mountain valleys of Colorado are found conditions of altitude, soil, and moisture naturally favorable to the growth of the potato, with an almost entire absence of harmful freezes and bacterial enemies." -- p. 5. This bulletin explains how potatoes can be cultivated to thrive in the western United States.
Date: 1910
Creator: Grubb, E. H.

Irrigation of Sugar Beets

Description: "A practical manual, giving methods pursued throughout the irrigated beet-growing sections and thereby furnishing information to new settlers in irrigated districts, as well as suggestions to beet growers as to the practices in States other than their own, should be of value in introducing the growing of beets and improving the methods of handling this important crop. As the matter now stands, each community where this industry has found favor is proceeding along lines suggested by local conditions which are more or less peculiar, and this bulletin is designed to be a compilation of the practices throughout the West, to which are added the results of experiments conducted by this Office in irrigation of sugar beets during the past four years." -- p. 9
Date: 1910
Creator: Roeding, F. W.