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Texas Patents
118
Technical Report Archive and Image Library
99
National Advisory Committee for Aeronautics Collection
85
Government Documents A to Z Digitization Project
14
USDA Farmers' Bulletins
13
Boy and Girl Scout Annual Reports
1
Environmental Policy Collection
1
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1
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47
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22
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10
Farmers' bulletin (United States. Dept. of Agriculture)
9
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7
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6
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4
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4
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4
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234 Matching Results
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Termites in Buildings.
Describes the characteristics of termites, the damage they cause to buildings, and methods of control.
Date:
June 1929
Creator:
Snyder, Thomas Elliott, b. 1885
Object Type:
Book
System:
The UNT Digital Library
Cow-testing associations, and stories the records tell.
Describes the history and functions of farm cow-testing associations; provides steps for starting a new cow-testing association.
Date:
June 1925
Creator:
McDowell, J. C. (John Chambers), 1867-1943
Object Type:
Book
System:
The UNT Digital Library
Varieties of hard red winter wheat.
Describes different types of hard red winter wheat and where it grows in the United States.
Date:
June 1929
Creator:
Clark, J. Allen (Jacob Allen), b. 1888 & Quisenberry, Karl S.
Object Type:
Book
System:
The UNT Digital Library
The Boll-Weevil Problem.
Describes the characteristics of the boll weevil, the damage it causes to cotton crops of the southeastern United States, and methods of control.
Date:
June 1923
Creator:
Hunter, W. D. (Walter David), 1875-1925 & Coad, B. R.
Object Type:
Book
System:
The UNT Digital Library
Home canning of fruits and vegetables.
A guide to home canning. Includes instructions for canning a variety of fruits and fruit juices, vegetables and soups, and meats and meat dishes.
Date:
June 1923
Creator:
United States. Dept. of Agriculture. States Relations Service.
Object Type:
Book
System:
The UNT Digital Library
Lamb and Mutton and Their Use in the Diet.
Suggests ways to prepare lamb and mutton for the table and of combining them with other ingredients of suitable flavor.
Date:
June 1923
Creator:
United States. Department of Agriculture. States Relations Service.
Object Type:
Book
System:
The UNT Digital Library
Tobacco hornworm insecticide: recommendations for use of powdered arsenate of lead in dark-tobacco district.
Describes methods for the use of arsenate of lead to control the tobacco hornworm and prevent damage to crops.
Date:
June 1923
Creator:
Morgan, A. C.
Object Type:
Book
System:
The UNT Digital Library
Lice, mange, and ticks of horses, and methods of control and eradication.
Describes the characteristics of parasites of horses, the diseases they cause, and methods of control.
Date:
June 1926
Creator:
Imes, Marion
Object Type:
Book
System:
The UNT Digital Library
The chinch bug and how to fight it.
Describes the damages caused by the chinch bug to grain and grass crops, and several methods for its control.
Date:
June 1926
Creator:
Flint, W. P. (Wesley Pillsbury), 1882-1943. & Larrimer, W. H. (Walter Harrison), 1889-
Object Type:
Book
System:
The UNT Digital Library
Insect enemies of the flower garden.
Describes insect pests that threaten flowering plants in the home garden.
Date:
June 1927
Creator:
Weigel, C. A. (Charles Adolph) & Middleton, William, 1893-
Object Type:
Book
System:
The UNT Digital Library
The Control of the Alfalfa Weevil.
Pamphlet describing the characteristics of the alfalfa weevil, the damage it causes, and methods of control.
Date:
June 1927
Creator:
Reeves, Geo. I. (George I.), b. 1879
Object Type:
Pamphlet
System:
The UNT Digital Library
Dairy-herd improvement through cooperative bull associations.
Describes the role of cooperative bull associations in dairy-herd improvement. Provides information about the financial benefits and advice for organizing a bull association.
Date:
June 1927
Creator:
McDowell, J. C. (John Chambers), 1867-1943
Object Type:
Book
System:
The UNT Digital Library
Trembles.
Describes the trembles, a milk sickness which afflicts cows; includes information regarding causes, transmission to uninfected animals, remedies, and prevention.
Date:
June 1929
Creator:
Marsh, C. Dwight (Charles Dwight)
Object Type:
Book
System:
The UNT Digital Library
Work and Expenditures of the Agricultural Experiment Stations, 1923
Volume provides a summary of the progress of each agricultural experiment station. Also includes statistics, discussions of foreign investigations, and selected studies.
Date:
June 1925
Creator:
United States. Office of Experiment Stations.
Object Type:
Book
System:
The UNT Digital Library
Planting the roadside.
Describes the benefits of planting trees and shrubs on the roadside, and the proper procedures for doing so.
Date:
June 1926
Creator:
Mulford, Furman Lloyd, b. 1869
Object Type:
Book
System:
The UNT Digital Library
Observations on the Method of Determining the Velocity of Airships
To obtain the absolute velocity of an airship by knowing the speed at which two routes are covered, we have only to determine the geographical direction of the routes which we locate from a map, and the angles of routes as given by the compass, after correcting for the variation (the algebraical sum of the local magnetic declination and the deviation).
Date:
June 1921
Creator:
Volterra, Vito
Object Type:
Report
System:
The UNT Digital Library
The Dynamometer Hub and the Flywheel of the Engine
Report presenting a description of the interaction between the dynamometer hub and the flywheel of the engine in aircraft. The negative rotary moments in propellers generally allow for the cessation of one cylinder without any lifting on the part of the propeller, and without depriving the engine of its flywheel.
Date:
June 1921
Creator:
Everling, E.
Object Type:
Report
System:
The UNT Digital Library
Simple Means for Saving Fuel on Traffic Flights
Report presenting a discussion of ways to save fuel on traffic flights, including some calculations that can be used for determining fuel efficiency. The primary ways of lessening fuel consumption include flying with a throttled engine and diminished speed.
Date:
June 1921
Creator:
Kook, E.
Object Type:
Report
System:
The UNT Digital Library
Flexibility of Bearing Surfaces and Stress on Fabrics
Report presenting an investigation of the flexibility of bearing surfaces and stress on fabrics used in wings. Equations are given for calculating some of these loading factors.
Date:
June 1921
Creator:
Pröll, A.
Object Type:
Report
System:
The UNT Digital Library
The development of German Army airplanes during the war
From Summary: "The author, who was a captain of the Reserves in the Technical Department of the Aviation Division (Board of Airplane Experts) during the war, shows what means were taken for the creation of new airplane types and what tests were employed for trying out their flying properties, capacities and structural reliability. The principal representative types of each of the classes of airplanes are described and the characteristics of the important structural parts are discussed. Data regarding the number of airplanes at the front and the flying efficiency of the various classes of airplanes are given."
Date:
June 1921
Creator:
Hoff, Wilhelm
Object Type:
Report
System:
The UNT Digital Library
Absolute Coefficients and the Graphical Representation of Aerofoil Characteristics
It is argued that there should be an agreement as to what conventions to use in determining absolute coefficients used in aeronautics and in how to plot those coefficients. Of particular importance are the absolute coefficients of lift and drag. The author argues for the use of the German method over the kind in common use in the United States and England, and for the Continental over the usual American and British method of graphically representing the characteristics of an airfoil.
Date:
June 1921
Creator:
Munk, Max
Object Type:
Report
System:
The UNT Digital Library
Notes on the standard atmosphere
From Summary: "This report contains the derivation of a series of relations between temperature, pressure, density, and altitude in a standard atmosphere which assumes a uniform decrease of temperature with altitude. The equations are collected and given with proper constants in both metric and English units for the temperature gradient adopted by the National Advisory Committee for Aeronautics. A table of values of temperature pressure and density at various altitudes in this standard atmosphere is included in the report."
Date:
June 1922
Creator:
Diehl, Walter S.
Object Type:
Report
System:
The UNT Digital Library
Simple formula for estimating airplane ceilings
From Summary: "The aeronautical engineer often has occasion to estimate the absolute ceiling of an airplane for which a detailed performance calculation is out of the question. In such cases it is customary to use either empirical performance charts or formulae. The performance charts given in several of the recent works on aeronautics are satisfactory so long as the airplane under consideration does not depart too far from the average in its characteristics. The formulae, with one exception, are no better. Given here is that exception, with indications of which terms of the formula may be neglected without seriously affecting the results, thus simplifying the task."
Date:
June 1922
Creator:
Diehl, Walter S.
Object Type:
Report
System:
The UNT Digital Library
On the Distribution of Lift Along the Span of an Airfoil With Displaced Ailerons
"The effect of an aileron displacement on the distribution of the lift along the span is computed for an elliptic wing of aspect ratio 6 for three conditions. The lift distribution caused by the aileron displacement is uniform and extends normally beyond the inner end of the ailerons. Hence, the displacement of an aileron with constant chord length may bring about passing the stalling point of the adjacent wing sections, if these were near this point before" (p. 1).
Date:
June 1924
Creator:
Munk, Max M.
Object Type:
Report
System:
The UNT Digital Library