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The Airplane Tensiometer

Description: Certain parts of an airplane are subjected not only to the stresses imposed by the aerodynamic or flying load, but also to the initial stresses, caused by the tension in the stay and drift wires. Report describes a tensiometer that measures such stresses which is simple in construction, accurate, and easily and quickly operated even by inexperienced persons. Two sizes of the instrument are available. One is suitable for wires up to one-fourth inch in diameter and the other for wires from one-fo… more
Date: 1919
Creator: Larson, L. J.
Item Type: Refine your search to only Report
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Alfalfa on Corn-Belt Farms

Description: "Alfalfa, on Corn Belt farms, if introduced in any considerable acreage, requires a great amount of labor at the most critical stage of the cultivation of corn. This bulletin tells how the more successful Corn Belt growers fit alfalfa into their cropping systems without interfering seriously with labor schedules. This is done in the main by speeding up the haying operations and corn cultivation by the use of labor-saving implements and more efficient methods. To some extent, the use of alfalfa … more
Date: 1919
Creator: Drake, J. A.; Rundles, J. C. & Jennings, R. D. (Ralph Dickieson), 1892-
Item Type: Refine your search to only Pamphlet
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Alfalfa Seed Production

Description: Report discussing the best-known methods of successful production of alfalfa seed. Topics discussed include seed production, cultivation of fields, harvesting, crop yields, and insect control.
Date: 1912
Creator: Westgate, J. M.; McKee, Roland & Evans, M. W.
Item Type: Refine your search to only Pamphlet
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The Alfalfa Weevil and Methods of Controlling It

Description: "The alfalfa weevil destroys a great deal of alfalfa in northern Utah and southern Idaho. It also inhabits southwestern Wyoming and is spreading slowly to new territory in all directions. It may in time infest most of the United States. The adult, a small brown snout-beetle, and the larva, a green, worm-like creature, usually escape notice during the first two or three years that they are present in a locality, but as soon as they become numerous enough to do harm they are readily found, and th… more
Date: 1916
Creator: Reeves, Geo. I. (George I.), b. 1879; Miles, Philip B.; Chamberlin, Thomas R.; Snow, Sterling J. & Bower, Luther J.
Item Type: Refine your search to only Pamphlet
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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

Description: 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.
Item Type: Refine your search to only Report
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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

Description: 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 ina… more
Date: 1913
Creator: Lord, N. W.
Item Type: Refine your search to only Report
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The Angora Goat

Description: Report discussing the importance and various uses for the angora goat and ways of building and managing a flock. There are special discussions of the value of mohair, care of fleeces, and shearing practices.
Date: 1914
Creator: Heller, L. L. (Lewis Lincoln), 1887-
Item Type: Refine your search to only Pamphlet
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Annual Report of the National Advisory Committee for Aeronautics (1st). [Administrative Report Including Technical Reports Nos. 1 to 7]

Description: 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, expenditures, problems, recommendations, and a compilation of technical reports produced.
Date: 1915
Creator: United States. National Advisory Committee for Aeronautics.
Item Type: Refine your search to only Report
open access

Annual Report of the National Advisory Committee for Aeronautics (2nd) Together With the Message of the President of the United States Transmitting the Report for the Fiscal Year Ending June 30, 1916. Administrative Report Including Technical Report

Description: 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, expenditures, problems, recommendations and a compilation of technical reports produced.
Date: 1917
Item Type: Refine your search to only Report
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