Collection
Texas Attorney General Opinions
1,744
Technical Report Archive and Image Library
1,664
National Advisory Committee for Aeronautics Collection
1,346
USDA Farmers' Bulletins
212
USGS Topographic Map Collection
206
Government Documents A to Z Digitization Project
201
Texas State Publications
59
Texas Soil Surveys
44
United States Experiment Station Record
23
Texas Senate Journals
22
13 More
Serial/Series Title
NACA Technical Notes
417
NACA Technical Memorandums
380
NACA Technical Reports
359
Farmers' bulletin (United States. Dept. of Agriculture)
195
United States Bureau of Mines Reports
175
NACA Aircraft Circulars
104
United States Geological Survey Reports
98
15 Minute Series (Topographic)
83
Leaflet (United States. Department of Agriculture)
69
NACA Special Reports
61
114 More
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4,125 Matching Results
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Aerodynamic Characteristics of Airfoils 6: Continuation of Reports Nos. 93, 124, 182, 244, and 286
"This collection of data on airfoils has been made from the published reports of a number of the leading aerodynamic laboratories of this country and Europe. The information which was originally expressed according to the different customs of the several laboratories is here presented in a uniform series of charts and tables suitable for use of designing engineers and for purposes of general reference. The authority for the results here presented is given as the name of the laboratory at which the experiments were conducted, with the size of the model, wind velocity, and year of test" (p. 213).
Date:
1930~
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Aerodynamic Characteristics of Twenty-Four Airfoils at High Speeds
"If a propeller is mounted directly on the of a modern high-speed airplane engine, the outer airfoil sections of the propeller travel at speeds approaching the speed of sound. It is possible by the use of gearing and a somewhat larger propeller to reduce the speed of the propeller sections, but only at the expense of additional weight and some frictional loss of power. This report presents the results of this work" (p. 327).
Date:
1930~
Creator:
Briggs, L. J. & Dryden, H. L.
Object Type:
Report
System:
The UNT Digital Library
Agglomeration and Leaching of Slimes and Other Finely Divided Ores
Report discussing the loads and extracting of slime and other divided ores. The report discusses experimental work done on the materials.
Date:
1930
Creator:
Sullivan, John D. & Towne, Alfred P.
Object Type:
Report
System:
The UNT Digital Library
Aircraft Woods: Their Properties, Selection, and Characteristics
From Summary: "This report presents, further, information on the properties of various other native species of wood compared with spruce, and discusses the characteristics of a considerable number of them from the standpoint of their possible application in aircraft manufacture to supplement the woods that are now most commonly used."
Date:
January 1, 1930
Creator:
Markwardt, L. J.
Object Type:
Report
System:
The UNT Digital Library
Annual Report of the National Advisory Committee for Aeronautics (15th). Administrative Report Including Technical Reports Nos. 309 to 336
Report includes the National Advisory Committee for Aeronautics letter of submittal to the President, Congressional report, summaries of the committee's activities and research accomplished, bibliographies, and financial report.
Date:
1930
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Austin-2 Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:48000
Date:
1930
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Barreda Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24000
Date:
1930
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Bassett Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:62500
Date:
1930
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Blanco-1 Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:48000
Date:
1930
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Board of Regents of the Texas State Teachers Colleges Biennial Report: 1928-1930
Biennial report of the Board of Regents of the Texas State Teachers Colleges discussing activities of state teachers' colleges and providing an overview of relevant statistics and financial information related to state funding.
Date:
1930
Creator:
Board of Regents of the Texas State Teachers Colleges
Object Type:
Report
System:
The Portal to Texas History
Boyd Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:62500
Date:
1930
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Canutillo Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:62500
Date:
1930
Creator:
United States. Army. Corps of Engineers.
Object Type:
Map
System:
The Portal to Texas History
Cattle-Fever Ticks and Methods of Eradication
Revised edition. This bulletin discusses the cattle-fever tick and methods for controlling it. Possible methods include dipping, pasture rotation, and arsenical dips. The life history of the tick is also discussed.
Date:
1930
Creator:
Ellenberger, W. P. & Chapin, Robert M.
Object Type:
Pamphlet
System:
The UNT Digital Library
The Chakachamna-Stony Region, Alaska
A report on the exploration and survey of the Chakachamna-Stony Region of Alaska.
Date:
1930
Creator:
Capps, Stephen R.
Object Type:
Report
System:
The UNT Digital Library
Chestnut Blight
"Chestnut blight, caused by a fungus brought into this country from Asia before 1904, is responsible for the death of millions of acres of chestnut growth in New England and the Middle Atlantic States. The disease spread rapidly to nearly all parts of the range of the native chestnut, and the remaining stands of the southern Appalachians face certain destruction. The present known distribution, its symptoms, and the fungus that causes the disease are described. The blight fungus itself does not have any effect upon the strength of chestnut timber, and blight-killed trees can be utilized for poles, posts, cordwood, lumber, and extract wood. Search is being made for native and foreign chestnuts resistant to the disease in the hope of finding a tree suitable for replacing the rapidly disappearing stands. Seedlings of Asiatic chestnuts, which have considerable natural resistance even though not immune, are being tested in the United States." -- p. ii
Date:
1930
Creator:
Gravatt, G. F. & Gill, L. S.
Object Type:
Pamphlet
System:
The UNT Digital Library
The City Home Garden
Revised edition. "Fresh vegetables for an average family may be grown upon a large back yard or city lot.... Thousands of acres of idle land that may be used for gardens are still available within the boundaries of our large cities. Some of the problems that confront the city gardener are more difficult than those connected with the farm garden, and it is the object of this bulletin to discuss these problems from a practical standpoint." -- p. 2. Soil preparation, tools, seeding, watering, diseases and pests, and space issues are all discussed and brief descriptions of several vegetables are given.
Date:
1930
Creator:
Beattie, W. R. (William Renwick), b. 1870
Object Type:
Pamphlet
System:
The UNT Digital Library
Coal-Mine Fatalities in the United States, 1928
Report compiled by the U.S. Bureau of Mines including statistics on fatalities in coal mines located in the United States as well as data regarding the various operations (e.g., number of miners employed and average production). The information is organized into tables for comparison and the text draws some overall conclusions in the summary.
Date:
1930
Creator:
Adams, William W.
Object Type:
Report
System:
The UNT Digital Library
Coefficients of Flow of Standard Nozzles
We first undertook experiments with air, devoted principally to the investigation of the disturbances due to the differences in the nature of the flow to the nozzle. The difficulty of measuring the air, however, caused us to experiment with water. Due to the possibility of measuring the capacity of the container, this method was much more accurate than measuring with Pitot tobes.
Date:
January 1930
Creator:
Mueller, H. & Peters, H.
Object Type:
Report
System:
The UNT Digital Library
Collection of wind-tunnel data on commonly used wing sections
This report groups in a uniform manner the aerodynamic properties of commonly used wing sections as determined from tests in various wind tunnels. The data have been collected from reports of a number of laboratories. Where necessary, transformation has been made to the absolute system of coefficients and tunnel wall interference corrections have been applied. Tables and graphs present the data in the various forms useful to the engineer in the selection of a wing section.
Date:
January 1930
Creator:
Louden, F. A.
Object Type:
Report
System:
The UNT Digital Library
Combating Airplane Fires
This report provides a summary of the important steps to be taken in combating airplane fires. Some considerations and ways of preventing fires from developing are provided.
Date:
January 1930
Creator:
Brunat, Henri
Object Type:
Report
System:
The UNT Digital Library
Commercial Possibilities of the Texas-New Mexico Potash Deposits
From Introduction Results of Test: "Among the domestic potash resources which were brought to the attention of the country during and after the war but were not utilized as a source of potash, although they indicated that they might furnish the cheap potash desired, were the potash deposits occurring with the think rock-salt formations of western Texas and southeastern New Mexico."
Date:
1930
Creator:
Wroth, James S.
Object Type:
Report
System:
The UNT Digital Library
Construction and Operation of the Bureau of Mines Experimental Oil-Shale Plant, 1925-1927
Report describing the construction of the Bureau of Mines experimental oil-shale plant at Rulison, CO, during 1925 and 1926, its operation, and the results obtained from refinery studies of the oil produced.
Date:
1930
Creator:
Gavin, Martin J. & Desmond, John S.
Object Type:
Report
System:
The UNT Digital Library
Contribution to the Study of Normal Burning in Gaseous Carbureted Mixtures: Part 1
In the present study it is proposed to provide an equipment permitting the study of the propagation of the region of reaction in mixtures of air and carbureted gases enclosed within a cylinder. Ignition is produced at the end of compression by an electric spark. With this apparatus it is proposed to determine: 1) the influence of the richness of the explosive mixture on the rate of flame propagation; 2) the influence of the degree of volumetric compression on one of the hydrocarbons; 3) the influence of the variation of initial temperature of the mixture before compression; 4) the influence of tetraethyl-lead on the propagation - notably on the formation of the explosive wave.
Date:
January 1930
Creator:
Duchene, M. R.
Object Type:
Report
System:
The UNT Digital Library
Contribution to the Study of Normal Burning in Gaseous Carbureted Mixtures: Part 2
Memorandum presenting the experimental results of tests to confirm the contribution to the study of normal burning in gaseous carbureted mixtures.
Date:
January 1930
Creator:
Duchene, M. R.
Object Type:
Report
System:
The UNT Digital Library