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Collection
United States Census Map Collection
444
USGS Topographic Map Collection
367
Technical Report Archive and Image Library
49
Texas State Publications
20
USDA Farmers' Bulletins
19
Texas Patents
9
End of Term Publications
2
Office of Scientific & Technical Information Technical Reports
2
Government Documents General Collection
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Digital US Topo Maps: 7.5 Minute Series (Topographic)
142
7.5 Minute Series (Topographic)
117
2000 Census County Subdivision Block Map
96
2010 Census County Block Map
83
2010 Census P.L. 94-171 County Block Map
83
1990 Census County Block Map
81
2000 Census County Block Map
81
15 Minute Series (Topographic)
39
Western United States 1:250,000
33
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916 Matching Results
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Low-Water Alarm For Boilers
Patent for "improvements in low water alarms for steam boilers and more particularly to those which are operated by the heat from the steam in the boiler, after the water therein has fallen below a predetermined danger point" (lines 15-20).
Date:
January 5, 1915
Creator:
Anderson, Williamson D. & Shearer, Edward J.
Object Type:
Patent
System:
The Portal to Texas History
Triple Valve
Patent for a triple valve for air brakes on trains that gives the engineer more control over the brakes.
Date:
August 13, 1912
Creator:
Anderson, Williamson D. & Shearer, Edward J.
Object Type:
Patent
System:
The Portal to Texas History
Better Grain-Sorghum Crops
"This paper presents the best-known methods of improving the grain-sorghum crops on the farms where they are grown. These methods are simple and inexpensive of time or money, and are therefore within the reach of all farmers. More attention to the bettering of the quality and yields will be repaid as fully in these crops as in other cereals." -- p. 2. Sorghum crops can be improved for drought resistance, earliness, stature, productivity, and adaptability to machine techniques.
Date:
1911
Creator:
Ball, Carleton R. (Carleton Roy), 1873-1958
Object Type:
Pamphlet
System:
The UNT Digital Library
Boot
Patent for a boot design that contains a counter-support of coil springs while also being inexpensive, durable, and efficient.
Date:
October 2, 1888
Creator:
Benson, Henry L.
Object Type:
Patent
System:
The Portal to Texas History
[Letters from Ronnie M. Birdson to the BRAC Commissioners - May 19, 2005]
Letters from Ronnie Birdson to each of the Defense Base Closure and Realignment Commission (BRAC) commissioners in support of Cannon Air Force Base.
Date:
May 19, 2005
Creator:
Birdson, Ronnie M.
Object Type:
Letter
System:
The UNT Digital Library
Screw-Worms and Other Maggots Affecting Animals
This bulletin discusses the screwworm, which is a maggot that causes losses to livestock, and measures for its control. Other maggots and insects discussed include the sheep-wool maggot, the black blowfly, the green bottle fly, and the gray flesh fly.
Date:
1917
Creator:
Bishopp, F. C. (Fred Corry), 1884-1970; Mitchell, J. D. & Parman, D. C.
Object Type:
Pamphlet
System:
The UNT Digital Library
Artificial-Recharge Experiments and Operations on the Southern High Plains of Texas and New Mexico
Abstract: Experiments using highly turbid water from playa lakes for injection into the Ogallala Formation have resulted in greatly decreased yield of the recharge wells. Recharge of ground or surface water of good quality has indicated, however, that injection through wells in an effective method of recharging the aquifer. Water that is slightly turbid can be successfully injected for a period of time, but generally results in constantly declining yields and capacity for recharge. Redevelopment through pumping and surging significantly prolongs the life of recharge wells under some conditions. Surface spreading is little practiced on the High Plains, but locally may be a feasible means of artificial recharge.
Date:
May 1973
Creator:
Brown, Richmond F. & Signor, Donald C.
Object Type:
Report
System:
The UNT Digital Library
Petroleum Engineering Report, Big Spring Field and Other Fields in West Texas and Southeastern New Mexico
Report issued by the Bureau of Mines over petroleum engineering studies conducted in Texas and New Mexico. The results of the studies are presented and discussed. This report includes tables, maps, illustrations, and photographs.
Date:
November 1936
Creator:
Carpenter, Charles B. & Hill, Harry Blackburn
Object Type:
Report
System:
The UNT Digital Library
[National Topographic Map Section NH 13-1: Average Record Data Listings]
Computer read-out of averaged record data listings to accompany a report on aerial radiometric and magnetic survey of the El Paso quadrangle in New Mexico and Texas.
Date:
September 1981
Creator:
Carson Helicopters, Inc.
Object Type:
Dataset
System:
The UNT Digital Library
[National Topographic Map Section NI 13-1: Single Record Data Listings]
Computer read-out of single-record data listings to accompany a report on aerial radiometric and magnetic survey of the El Paso quadrangle in New Mexico and Texas.
Date:
September 1981
Creator:
Carson Helicopters, Inc.
Object Type:
Dataset
System:
The UNT Digital Library
NURE Aerial Gamma Ray and Magnetic Reconnaissance Survey of Portions of New Mexico, Arizona and Texas, Final Report: Volume 1, Instrumentation and Data Reduction
From abstract: As part of the Department of Energy (DOE) National Uranium Resource Evaluation Program, a rotary-wing high sensitivity radiometric and magnetic survey was flown covering portions of the State of New Mexico, Arizona and Texas. The survey encompassed six 1:250,000 scale quadrangles, Holbrook, El Paso, Las Cruces, Carlsbad, Fort Sumner and Roswell.
Date:
September 1981
Creator:
Carson Helicopters, Inc.
Object Type:
Report
System:
The UNT Digital Library
NURE Aerial Gamma-Ray and Magnetic Reconnaissance Survey of Portions of New Mexico, Arizona and Texas, Final Report: Volume 2-F, El Paso Quadrangle
This report contains aerial gamma-ray and magnetic quadrangle maps of portions of New Mexico, Arizona and Texas.
Date:
September 1981
Creator:
Carson Helicopters, Inc.
Object Type:
Report
System:
The UNT Digital Library
Growing Winter Wheat on the Great Plains
"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)
Object Type:
Pamphlet
System:
The UNT Digital Library
Preventing Soil Blowing on the Southern Great Plains
"Soil blowing is often a serious problem from December to May [in the Southern Great Plains], when the soil is, in many cases, bare and winds are high. This period is often referred to as the 'blow season.' The whole art of preventing and controlling soil blowing consists in keeping nonblowing materials on the surface. These may be crops, crop residues, or clods. When crops are absent, the essential feature in preventing soil blowing is the use of implements that lift clods and other nonblowing materials to the surface rather than implements that pulverize or destroy them.... Since tillage is dependent on implements, it seems of first importance to consider the implements that may be used to discuss their merits and shortcomings in relation to soil blowing.... From the general principles stated and the specific examples of implement use given, most farmers can probably decide on the correct applications for their farms." -- p. 1-3
Date:
1937
Creator:
Chilcott, E. F. (Ellery Franklin), 1885-
Object Type:
Pamphlet
System:
The UNT Digital Library
Quilting-Frame for Sewing-Machines.
Patent for an attachment that can be connected to a sewing machine to facilitate quilting.
Date:
March 24, 1914
Creator:
Click, Washington B.
Object Type:
Patent
System:
The Portal to Texas History
Potash Salts from Texas-New Mexico Polyhalite Deposits: Commercial Possibilities, Proposed Technology, and Pertinent Salt-Solution Equilibria
From Introduction: "Figure 1 shows the location of sources that have been either exploited or seriously considered at one time or another, super-imposed upon a map indicating by small letters the order of consumption of K2O in the leading States; the amount used in these States, together with the percentage of the total consumption of potash used as fertilizer in the United States in 1939, is given in table 1. Figure 2 shows the domestic production and total consumption of potassium salts, in terms of tons of K2O, with the value per unit at the plants, for each year since 1913. Considered together, these two figures tell a significant story."
Date:
1944
Creator:
Conley, John E. & Partridge, Everett P.
Object Type:
Report
System:
The UNT Digital Library
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
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
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
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
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
Protector for Detonator-Caps.
Patent for a detonator cap that acts as a "protecting device...to seal the inner end of the cap into which the adjacent end of the fuse is projected in use." (lines 13-16)
Date:
October 9, 1917
Creator:
Dillard, George L.
Object Type:
Patent
System:
The Portal to Texas History
Census and Statistical Characterization of Soil and Water Quality at Abandoned and Other Centralized and Commercial Drilling-Fluid Disposal Sites in Louisiana, New Mexico, Oklahoma, and Texas
Commercial and centralized drilling-fluid disposal (CCDD) sites receive a portion of spent drilling fluids for disposal from oil and gas exploration and production (E&P) operations. Many older and some abandoned sites may have operated under less stringent regulations than are currently enforced. This study provides a census, compilation, and summary of information on active, inactive, and abandoned CCDD sites in Louisiana, New Mexico, Oklahoma, and Texas, intended as a basis for supporting State-funded assessment and remediation of abandoned sites. Closure of abandoned CCDD sites is within the jurisdiction of State regulatory agencies. Sources of data used in this study on abandoned CCDD sites mainly are permit files at State regulatory agencies. Active and inactive sites were included because data on abandoned sites are sparse. Onsite reserve pits at individual wells for disposal of spent drilling fluid are not part of this study. Of 287 CCDD sites in the four States for which we compiled data, 34 had been abandoned whereas 54 were active and 199 were inactive as of January 2002. Most were disposal-pit facilities; five percent were land treatment facilities. A typical disposal-pit facility has fewer than 3 disposal pits or cells, which have a median size of approximately …
Date:
June 1, 2003
Creator:
Dutton, Alan R. & Nance, H. Seay
Object Type:
Report
System:
The UNT Digital Library
Hydrogeology of Lower Cretaceous Strata Under the Southern High Plains of Texas and New Mexico
Report detailing the movement of ground water through the aquifers of Texas and New Mexico, with analysis of the ground water quality, their yields, and potential for further development.
Date:
March 1989
Creator:
Fallin, J. A. Tony
Object Type:
Report
System:
The Portal to Texas History