Collection
Texas Attorney General Opinions
6,870
Technical Report Archive and Image Library
5,448
National Advisory Committee for Aeronautics Collection
4,160
Office of Scientific & Technical Information Technical Reports
1,005
TRAIL Microcard Collection
710
World War Two Collection
628
USGS Topographic Map Collection
369
Government Documents A to Z Digitization Project
349
World War Poster Collection
346
Texas State Publications
239
19 More
Serial/Series Title
NACA Wartime Reports
1,248
NACA Technical Notes
1,136
NACA Research Memorandums
1,037
Atomic Energy Commission Reports
721
NACA Advanced Restricted Reports
533
NACA Memorandum Reports
335
NACA Technical Reports
334
NACA Technical Memorandums
321
American War Posters
303
NACA Advanced Confidential Reports
246
211 More
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15,000 Matching Results
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Aerodynamic Characteristics of Horizontal Tail Surfaces
From Summary: "Collected data are presented on the aerodynamic characteristics of 17 horizontal tail surfaces including several with balanced elevators and two with end plates. Curves are given for coefficients of normal force, drag, and elevator hinge moment. A limited analysis of the results has been made. The normal-force coefficients are in better agreement with the lifting-surface theory of Prandtl and Blenk for airfoils of low aspect ratio than with the usual lifting-line theory. Only partial agreement exists between the elevator hinge-moment coefficients and those predicted by Glauert's thin-airfoil theory."
Date:
1940
Creator:
Silverstein, Abe & Katzoff, S.
Object Type:
Report
System:
The UNT Digital Library
Aguilares 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:
1940
Creator:
United States. Army. Corps of Engineers.
Object Type:
Map
System:
The Portal to Texas History
Alfalfa varieties in the United States.
Describes the different types of alfalfa grown in the United States.
Date:
1940
Creator:
Westover, H. L. (Harvey Leroy)
Object Type:
Book
System:
The UNT Digital Library
Annual Report of the National Advisory Committee for Aeronautics (25th). Administrative Report Including Technical Report Nos. 645 to 680
Report includes the National Advisory Committee for Aeronautics letter of submittal to the President, summaries of the committee's activities and research accomplished, bibliographies, and financial report.
Date:
1940
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Apple blotch.
Describes the disease of apple blotch, how it spreads, and ways to control it.
Date:
1940
Creator:
Roberts, John W. (John William), 1882-1957. & Pierce, Leslie.
Object Type:
Book
System:
The UNT Digital Library
Apple-orchard renovation.
Describes various methods for maximizing the quality and output of apple orchards.
Date:
1940
Creator:
Gould, H. P.
Object Type:
Book
System:
The UNT Digital Library
Bean Growing in Northern Idaho, Eastern Washington, and Eastern Oregon.
Describes best practices for profitable bean-growing in the northwestern United States.
Date:
1940
Creator:
Hunter, Byron, b. 1869
Object Type:
Book
System:
The UNT Digital Library
Black Walnut for Timber and Nuts.
A guide to growing black walnut trees for timber, nut crops, or ornamental use.
Date:
1940
Creator:
Mattoon, Wilbur R. (Wilbur Reed), 1875-1941 & Reed, C. A. (Clarence Arthur), 1880-1950
Object Type:
Book
System:
The UNT Digital Library
Blackleg : its nature, cause, and prevention.
Describes blackleg, a livestock disease. Explains how to recognize, treat, and prevent it.
Date:
1940
Creator:
Mohler, John R. (John Robbins), b. 1875
Object Type:
Book
System:
The UNT Digital Library
Blanco Sheet
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 1:125000
Date:
1940
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: 1938-1940
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:
1940
Creator:
Board of Regents of the Texas State Teachers Colleges
Object Type:
Report
System:
The Portal to Texas History
Boundary-Layer Transition on the N.A.C.A. 0012 and 23012 Airfoils in the 8-Foot High-Speed Wind Tunnel
Report presenting determinations of boundary-layer transition on the NACA 0012 and 23012 airfoils in the high-speed wind tunnel over a range of Reynolds numbers. For all of the lift coefficients that testing occurred at, transition occurred in the region of estimated laminar separation at low Reynolds numbers and approached the point of minimum static pressure as a forward limit at high Reynolds numbers.
Date:
January 1940
Creator:
Becker, John V.
Object Type:
Report
System:
The UNT Digital Library
Boundary-Layer Transition on the N.A.C.A. 0012 and 23012 Airfoils in the 8-Foot High-Speed Wind Tunnel, Special Report
Determinations of boundary-layer transition on the NACA 0012 and 2301 airfoils were made in the 8-foot high-speed wind tunnel over a range of Reynolds Numbers from 1,600,000 to 16,800,000. The results are of particular significance as compared with flight tests and tests in wind tunnels of appreciable turbulence because of the extremely low turbulence in the high-speed tunnel. A comparison of the results obtained on NACA 0012 airfoils of 2-foot and 5-foot chord at the same Reynolds Number permitted an evaluation of the effect of compressibility on transition.
Date:
January 1940
Creator:
Becker, John V.
Object Type:
Report
System:
The UNT Digital Library
Breaking and Training Colts.
Describes methods training horses for farm use. Includes training or control methods for driving, riding, shoeing, and throwing.
Date:
1940
Creator:
Stamburgh, V. G. (Vivian Guy), 1885-; Williams, J. O. (John Oscar), 1885- & Krantz, Earl B. (Earl Beach), 1893-
Object Type:
Book
System:
The UNT Digital Library
Business records for poultry keepers.
Describes business methods to help poultry keepers with their production and marketing issues, discusses record-keeping methods, and includes suggestions to improve efficiency of a farmer's poultry business.
Date:
1940
Creator:
Johnson, E. R. (Ernest Reuben), 1892- & Lee, Alfred R., b. 1887
Object Type:
Book
System:
The UNT Digital Library
Care and repair of mowers and binders.
A guide to repairing and maintaining farm mowers and binders.
Date:
1940
Creator:
United States. Department of Agriculture.
Object Type:
Book
System:
The UNT Digital Library
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 and instructions for constructing a concrete vat are given.
Date:
1940
Creator:
Ellenberger, W. P. & Chapin, Robert M.
Object Type:
Pamphlet
System:
The UNT Digital Library
Celery growing.
A guide to commercial celery-growing, with brief instructions for growing celery in home gardens. Includes descriptions of celery diseases and insect pests.
Date:
1940
Creator:
Beattie, W. R. (William Renwick), b. 1870
Object Type:
Book
System:
The UNT Digital Library
Chisos Mountains Sheet
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 1:125000
Date:
1940
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Clothes moths.
Describes the life cycle and characteristics of clothes moths, and methods for their control.
Date:
January 1940
Creator:
Back, E. A. (Ernest Adna), 1886-
Object Type:
Book
System:
The UNT Digital Library
Coal-Mine Accidents in the United States, 1937
Report compiled by the U.S. Bureau of Mines including statistics on fatal and non-fatal accidents 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:
1940
Creator:
Adams, William W.; Geyer, L. E. & Parry, M. G.
Object Type:
Report
System:
The UNT Digital Library
Communicable Diseases in Texas: 1939
The report provides data and information about communicable and reportable diseases in Texas (chicken pox, diphtheria, dysentery, influenza, malaria, measles, meningitis, pellagra, pneumonia, poliomyelitis, scarlet fever, smallpox, tuberculosis, tularemia, typhoid fever, undulant fever, whooping cough) during 1939.
Date:
1940
Creator:
Texas. State Department of Health.
Object Type:
Report
System:
The Portal to Texas History
Constant-Pressure Blowers
"The conventional axial blowers operate on the high-pressure principle. One drawback of this type of blower is the relatively low pressure head, which one attempts to overcome with axial blowers producing very high pressure at a given circumferential speed. The Schicht constant-pressure blower affords pressure ratios considerably higher than those of axial blowers of conventional design with approximately the same efficiency" (p. 1).
Date:
January 1940
Creator:
Sörensen, E.
Object Type:
Report
System:
The UNT Digital Library
Construction of chimneys and fireplaces.
Describes the principles of chimney and fireplace construction. Provides schematics.
Date:
1940
Creator:
United States. Bureau of Agricultural Engineering.
Object Type:
Book
System:
The UNT Digital Library