Recovery of Zinc from Low-Grade and Complex Ores (open access)

Recovery of Zinc from Low-Grade and Complex Ores

From Introduction: "Vocalization in retorts has been, until recently, the only commercial process of producing spelter, hence the zinc mine operators have had to meet the terms of the zinc mine operators have had to meet the terms of the zinc smelters in regard to the following requirements: (1) Minimum percentage of zinc the ore must contain; (2) the chemical combination of the zinc in the ore; (3) the proportion present of those elements that interfere with the successful recovery of the zinc when the ore is retorted. As stated previously, and as will be shown later, a large part of the valuable mineral content of the ore is lost in effecting this concentration. As a result of the other requirements that have to be met in zinc smelting, much zinc is lost in the mining and milling of zinc ore."
Date: 1919
Creator: Lyon, Dorsey A. & Ralston, Oliver C.
Object Type: Report
System: The UNT Digital Library
Analyses of Coals in the United States with Descriptions of Mine and Field Samples Collected between July 1, 1904 and June 30, 1910: Part 1. -- Analyses (open access)

Analyses of Coals in the United States with Descriptions of Mine and Field Samples Collected between July 1, 1904 and June 30, 1910: Part 1. -- Analyses

From Significance and value of Analyses of Coal: "The analyses published in this report cover samples of coal collected in many different parts of the country with unusual care by experiences men, in such manner as to make them representative of extensive beds of coal."
Date: 1913
Creator: Lord, N. W.
Object Type: Report
System: The UNT Digital Library
Analyses of Coals in the United States with Descriptions of Mine and Field Samples Collected between July 1, 1904 and June 30, 1910 Part 2. Descriptions of Samples (open access)

Analyses of Coals in the United States with Descriptions of Mine and Field Samples Collected between July 1, 1904 and June 30, 1910 Part 2. Descriptions of Samples

From Introduction: "This volume contains the descriptions of the samples whose analyses are published in the preceding volume, Part I of this bulletin. The descriptions have been compiled from the notebooks of the persons who collected the samples, have been condensed from accounts given in published reports of the United States Geological Survey, or have furnished by the collection themselves. Inasmuch as the descriptions represent the work of many persons during a period of six years, and inasmuch as they were recorded under widely differing conditions, they necessarily vary in fullness detail."
Date: 1913
Creator: Lord, N. W.
Object Type: Report
System: The UNT Digital Library
United States Earthquakes 1942 (open access)

United States Earthquakes 1942

Report discussing earthquake activity in the United States during 1942. The report is broken down by regions and has sections for specific earthquakes.
Date: 1942
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Beneficiation of Chromite Ores From Western United States (open access)

Beneficiation of Chromite Ores From Western United States

Report issued by the U.S. Bureau of Mines on the sampling of chrome ore deposits in the western United States. Physical properties of the samples collected are presented. This report includes tables.
Date: June 1947
Creator: Batty, J. V.; Mitchell, T. F.; Havens, R. & Wells, R. R.
Object Type: Report
System: The UNT Digital Library
Trends in the Use of Energy in the Western States, With Particular Reference to Coal (open access)

Trends in the Use of Energy in the Western States, With Particular Reference to Coal

Report issued by the U.S. Bureau of Mines on energy consumption in the western United States. A focus on coal as the primary energy source is presented. This report includes tables, graphs, maps, and illustrations.
Date: January 1943
Creator: Parry, V. F.
Object Type: Report
System: The UNT Digital Library
The Beet Leaf-Beetle and Its Control (open access)

The Beet Leaf-Beetle and Its Control

Report discussing the beet leaf-beetle, which is common in the Rocky Mountain region. Discussion include physical appearance, geographic distribution, life cycle, affected plants, and methods of control.
Date: 1921
Creator: Chittenden, F. H. (Frank Hurlbut), 1858-1929
Object Type: Pamphlet
System: The UNT Digital Library
Sheeps, Hogs, and Horses in the Pacific Northwest (open access)

Sheeps, Hogs, and Horses in the Pacific Northwest

This bulletin gives a broad overview of the livestock industry in the Pacific Northwest with respect to sheep and hogs; there is also a brief discussion of the horse industry. I. Sheep Husbandry. II. Hog Raising. III. The Horse Industry.
Date: 1900
Creator: French, Hiram T. (Hiram Taylor), b. 1861; Nelson, S. B. (Sofus Bertelsen), 1867-1931 & Withcombe, James
Object Type: Pamphlet
System: The UNT Digital Library
Sixty-Day and Kherson Oats (open access)

Sixty-Day and Kherson Oats

Report discussing the results of experiments undertaken to determine the viability of early oats in different regions of the United States since early oats typically thrive only in the Corn Belt and Great Plains regions.
Date: 1910
Creator: Warburton, C. W. (Clyde William), 1879-1950
Object Type: Pamphlet
System: The UNT Digital Library
Management of Common Storage Houses for Apples in the Pacific Northwest (open access)

Management of Common Storage Houses for Apples in the Pacific Northwest

"This bulletin deals with the fundamental of construction and the efficient management of common storage houses for apples under the conditions prevailing in Washington, Oregon, Idaho, and Montana." -- p. 2. Topics discussed include ventilation, insulation, fruit quality.
Date: 1917
Creator: Ramsey, H. J. & Dennis, S. J.
Object Type: Pamphlet
System: The UNT Digital Library
How to Attract Birds in Northwestern United States (open access)

How to Attract Birds in Northwestern United States

This report discusses steps that can be taken by residents of the northwestern United States to attract birds to their homes and farms. Needs for protections from natural enemies, breeding places, and food and water are each discussed
Date: 1916
Creator: McAtee, W. L. (Waldo Lee), 1883-1962
Object Type: Pamphlet
System: The UNT Digital Library
Strawberry Culture: Western United States (open access)

Strawberry Culture: Western United States

"This bulletin applies to that part of the United States in which ordinary farm crops are grown largely under irrigation. It describes methods practiced in the more important commercial strawberry-growing districts in the irrigated regions of the West; it aims to aid those familiar only with local and perhaps unsatisfactory methods, as well as inexperienced prospective growers. The fundamental principles of the irrigation of strawberries are substantially the same as those which apply in the growing of other crops. Details of operation must necessarily be governed largely by the character of the crop grown. Since strawberries in the humid regions frequently suffer from drought, which causes heavy losses in the developing fruit, the information may prove suggestive to many growers in those localities who could install an irrigation system at small expense. Detailed information is also given as to soils and their preparation, different training systems, propagation, planting, culture, the leading varieties, harvesting, and shipping. Methods of using surplus strawberries for preserves and jams, for canning, and for flavoring for various purposes are given." -- p. 3
Date: 1919
Creator: Darrow, George M. (George McMillan), 1889-
Object Type: Pamphlet
System: The UNT Digital Library
Strawberry Culture: Western United States (open access)

Strawberry Culture: Western United States

Revised edition. "This bulletin applies to that part of the United States in which ordinary farm crops are grown largely under irrigation. It describes methods practiced in the more important commercial strawberry-growing districts in the irrigated regions of the West; it aims to aid those familiar only with local and perhaps unsatisfactory methods, as well as inexperienced prospective growers. The fundamental principles of the irrigation of strawberries are substantially the same as those which apply in the growing of other crops. Details of operation must necessarily be governed largely by the character of the crop grown. Since strawberries in the humid regions frequently suffer from drought, which causes heavy losses in the developing fruit, the information may prove suggestive to many growers in those localities who could install an irrigation system at small expense. Detailed information is also given as to soils and their preparation, different training systems, propagation, planting, culture, the leading varieties, harvesting, and shipping. Methods of using surplus strawberries for preserves and jams, for canning, and for flavoring for various purposes are given." -- p. 3
Date: 1928
Creator: Darrow, George M. (George McMillan), 1889-
Object Type: Pamphlet
System: The UNT Digital Library
Strawberry Culture: Western United States (open access)

Strawberry Culture: Western United States

Revised edition. "This bulletin applies both to the western portions of the United States in which ordinary farm crops are grown largely under irrigation and to western Oregon and Washington where irrigation is not essential for strawberry production but may be profitable. It describes methods practiced in the more important commercial strawberry-growing districts of the West; it aims to aid those persons familiar only with local and perhaps unsatisfactory methods, as well as inexperienced prospective growers. The fundamental principles of the irrigation of strawberries are substantially the same as those of irrigating other crops. Details must necessarily be governed largely by the character of the crop grown. Since strawberries in the humid areas frequently suffer from drought which causes heavy losses in the developing fruit, the information may prove suggestive to many growers in those areas who could install irrigation systems at small expense. This bulletin gives information on soils and their preparation, different training systems, propagation, planting, culture, the leading varieties, harvesting, shipping, and utilization." -- p. ii
Date: 1933
Creator: Darrow, George M. (George McMillan), 1889-
Object Type: Pamphlet
System: The UNT Digital Library
Strawberry Culture: Western United States (open access)

Strawberry Culture: Western United States

Revised edition. "This bulletin applies both to the western portions of the United States in which ordinary farm crops are grown largely under irrigation and to western Oregon and Washington where irrigation is not essential for strawberry production but may be profitable. It describes methods practiced in the more important commercial strawberry-growing districts of the West; it aims to aid those persons familiar only with local and perhaps unsatisfactory methods, as well as inexperienced prospective growers. The fundamental principles of the irrigation of strawberries are substantially the same as those of irrigating other crops. Details must necessarily be governed largely by the character of the crop grown. Because strawberries in the humid areas frequently suffer from drought, which causes heavy losses in the developing fruit, the information may prove helpful to many growers in those areas who could install irrigation systems at small expense. This bulletin gives information on soils and their preparation, different training systems, propagation, planting, culture, the leading varieties, harvesting, shipping, and utilization." -- p. ii
Date: 1941
Creator: Darrow, George M. (George McMillan), 1889- & Waldo, George F. (George Fordyce), b. 1898
Object Type: Pamphlet
System: The UNT Digital Library
Strawberry Culture: Western United States (open access)

Strawberry Culture: Western United States

Revised edition. "Strawberries can be grown in those parts of the western Untied States in which ordinary farm crops are irrigated as well as in western Oregon and Washington, where irrigation is not essential but may be profitable. The principles of irrigating strawberries are essentially the same as those for other crops. Because strawberries are sensitive to the alkali salts that irrigation brings to the surface, such salts must be washed out or skimmed off. The strawberry grower, after choosing a suitable site and preparing the soil carefully, should select varieties adapted to his district and needs. He should use plants that are disease-free. In California, southern Arizona, New Mexico, and Texas the plants should have undergone a rest period. Usually the growers plant during the period of greatest rainfall. By using the recommended systems of training and care before, during, and after setting of the plants and the suggested methods of decreasing diseases and insect pests, he should obtain better yields. A grower can furnish consumers a better product by using good methods of harvesting and shipment. He can prolong the fresh-fruit season only a little by the use of cold storage, but he can extend his market by …
Date: 1948
Creator: Darrow, George M. (George McMillan), 1889- & Waldo, George F. (George Fordyce), b. 1898
Object Type: Pamphlet
System: The UNT Digital Library
Native and Adapted Grasses for Conservation of Soil and Moisture in the Great Plains and Western States (open access)

Native and Adapted Grasses for Conservation of Soil and Moisture in the Great Plains and Western States

"The information given in this bulletin should enable farmers in the Great Plains and Western States to select from the more common species of grasses some one or more suited to their needs [for soil and water conservation]. Common harvesting equipment and farm machinery can be adapted to the proper handling of native grasses. This brings the cost of such work within the means of most farmers." -- p. i. Among the grasses discussed are wheatgrass, buffalo grass, bluestem, grama, Bermuda grass, wild rye, hilaria, Sudan grass, bluegrass, panic grasses, dropseed, and needlegrass.
Date: 1939
Creator: Hoover, Max M. (Max Manley), 1895-
Object Type: Pamphlet
System: The UNT Digital Library
The Hard Red Winter Wheats (open access)

The Hard Red Winter Wheats

This bulletin discusses the classes and varieties of hard red winter wheats and the areas in which they are successfully grown. Among the varieties discussed are Turkey, Kharkof, Kanred, Blackhull, Minturki, and Baeska.
Date: 1922
Creator: Clark, J. Allen (Jacob Allen), b. 1888 & Martin, John H. (John Holmes), 1893-
Object Type: Pamphlet
System: The UNT Digital Library
Some Haulage and Hoisting Hazards in Western Mines (open access)

Some Haulage and Hoisting Hazards in Western Mines

Report issued by the U.S. Bureau of Mines discussing safety hazards in western mines. Mine hoisting and haulage accidents are presented. Accident prevention is also discussed. This report includes tables.
Date: December 1942
Creator: Denny, E. H. & Humphrey, H. B.
Object Type: Report
System: The UNT Digital Library
Iron and Steel Scrap in the Pacific Northwest (open access)

Iron and Steel Scrap in the Pacific Northwest

Report issued by the U.S. Bureau of Mines discussing the iron and steel scrap industry in the Pacific Northwest. As stated in the introduction, "this report surveys the supply and consumption of iron and steel scrap in the Pacific Northwest, with emphasis on Oregon and Washington" (p. 2). This report includes maps, tables, illustrations
Date: 1964
Creator: Kingston, Gary A.
Object Type: Report
System: The UNT Digital Library
Uranium Hydrogeochemical and Stream Sediment Reconnaissance Data Release for the Hamilton NTMS Quadrangle, Montana/Idaho, Including Concentrations of Forty-Five Additional Elements (open access)

Uranium Hydrogeochemical and Stream Sediment Reconnaissance Data Release for the Hamilton NTMS Quadrangle, Montana/Idaho, Including Concentrations of Forty-Five Additional Elements

Report of elemental date from a Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) of the Hamilton National Topographic Map Series (NTMS) quadrangle in Montana/Idaho: "The HSSR is part of the United States Department of Energy's National Uranium Resource Evaluation (NURE), which is designed to provide improved estimates of the availability and economics of nuclear fuel resources and make available to industry information for use in the development and production of uranium resources" (p. 1).
Date: August 1980
Creator: Goff, Sue
Object Type: Report
System: The UNT Digital Library
Uranium Hydrogeochemical and Stream Sediment Reconnaissance of the Dubois NTMS quadrangle, Idaho/Montana, Including Concentrations of Forty-Five Additional Elements (open access)

Uranium Hydrogeochemical and Stream Sediment Reconnaissance of the Dubois NTMS quadrangle, Idaho/Montana, Including Concentrations of Forty-Five Additional Elements

This report presents uranium and other elemental data resulting from the Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) of the Dubois NTMS quadrangle in Idaho and Montana. Totals of 1024 water samples and 1600 sediment samples were collected from 1669 locations in the Dubois quadrangle. Water samples were taken at streams, springs, and wells; sediment samples were collected from streams and springs.
Date: August 1980
Creator: LaDelfe, Carol M.
Object Type: Report
System: The UNT Digital Library
Uranium and Thorium Deposits in East-Central Idaho and Southwestern Montana (open access)

Uranium and Thorium Deposits in East-Central Idaho and Southwestern Montana

From transmittal letter: This report contains the results of radiometric examinations of 39 mines and prospects, and a detailed description of the properties examined.
Date: March 1952
Creator: Trites, Albert F., Jr. & Tooker, Edwin Wilson
Object Type: Report
System: The UNT Digital Library
Reconnaissance Investigations for Uranium in Black Shale Deposits of the Western States during 1951 and 1952 (open access)

Reconnaissance Investigations for Uranium in Black Shale Deposits of the Western States during 1951 and 1952

Report discussing investigations seeking uranium in deposits of black shale around the geographical areas of the Western States
Date: September 1953
Creator: Duncan, Donald Cave
Object Type: Report
System: The UNT Digital Library