Search Results

open access

Survey of Land-Grant Colleges and Universities, Volume 1

Description: First volume of the results of a survey undertaken by the U.S. Office of Education to determine their achievements, objectives, and functions. This bulletin provides the data and information collected by the Office during the survey and suggestions about possible improvements or changes. This volume is divided into eleven parts: Part I. Historical introduction; Part II. Control and administrative organization; Part III. Business management and finance; Part IV. Work of the registrar; Part V. … more
Date: 1930
Creator: United States. Office of Education.
Partner: UNT Libraries Government Documents Department
open access

Survey of Land-Grant Colleges and Universities, Volume 2

Description: Second volume of the results of a survey undertaken by the U.S. Office of Education to determine their achievements, objectives, and functions. This bulletin provides the data and information collected by the Office during the survey and suggestions about possible improvements or changes. This volume is divided into ten parts: Part I. Arts and sciences; Part II. Commerce and business; Part III. Teacher training; Part IV. Military education; Part V. Professional veterinary medicine; Part VI. S… more
Date: 1930
Creator: United States. Office of Education.
Partner: UNT Libraries Government Documents Department
open access

Commercial Possibilities of the Texas-New Mexico Potash Deposits

Description: 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.
Partner: UNT Libraries Government Documents Department
open access

Comparison of full-scale propellers having R.A.F.-6 and Clark Y airfoil sections

Description: In this report the efficiencies of two series of propellers having two types of blade sections are compared. Six full-scale propellers were used, three having R. A. F.-6 and three Clark Y airfoil sections with thickness/chord ratios of 0.06, 0.08, and 0.10. The propellers were tested at five pitch setting, which covered the range ordinarily used in practice. The propellers having the Clark Y sections gave the highest peak efficiency at the low pitch settings. At the high pitch settings, the pro… more
Date: October 8, 1930
Creator: Freeman, Hugh B.
Partner: UNT Libraries Government Documents Department
open access

Greensand Bibliography to 1930 (Annotated): with a Chapter on Zeolite Water Softeners

Description: From Introduction: "The references given herein to the literature of greensand or glauconite are believed to be complete up to about the end of 1929. The aim in this bibliography has been to include with each important reference a short synopsis, generally checked against the original article. These synopses are believed to be sufficiently complete to present a general view of the original article, and in many items specific parts of the article are included."
Date: 1930
Creator: Shreve, R. Norris
Partner: UNT Libraries Government Documents Department
open access

Annual Report of the National Advisory Committee for Aeronautics (15th). Administrative Report Including Technical Reports Nos. 309 to 336

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, bibliographies, and financial report.
Date: 1930
Partner: UNT Libraries Government Documents Department
open access

Innovations in Copper Leaching Employing Ferric Sulphate-Sulphuric Acid

Description: From Introduction: "The Bureau of Mines has attempted to develop a cheap and efficient solvent that would especially meet the requirements of smaller plants. (See Bibliography). A method of producing this solution from sulphurous products and waste liquors was developed by the bureau and tried successfully on a test-plant scale at the Southwest Experiment Station in cooperation with the department of mining and metallurgy, University of Arizona, Tuscon, Ariz."
Date: 1930
Creator: Keyes, Harmon E.
Partner: UNT Libraries Government Documents Department
open access

Potash Bibliography to 1928 (Annotated): Review and Compilation of Technical Literature on Potash Salts (including the Alunites) and Their Foreign Occurrences

Description: From Scope and Arrangement of Review: "This review is confined to the technical literature of the origin, history, and foreign occurrences of saline potassium minerals, their mining, description, treatment, and physical-chemical relations. The literature on alunite, jarosite, and related minerals has also been included. The literature on potash minerals associated with the nitrate deposits and on the silicate minerals has been omitted as well as that on analytical methods, statistics, political… more
Date: 1930
Creator: Berliner, J. F. T.
Partner: UNT Libraries Government Documents Department
open access

Ventilation of the Large Copper Mines of Arizona

Description: Introduction: "This bulletin discusses ventilation methods, practices, and costs at 11 large copper mines in Arizona, as obtained by brief personal studies and from supplementary information furnished by the mine managements. These mines were visited from December, 1928, to November, 1929, and the methods and practices in use when visited are described in some detail."
Date: 1930
Creator: McElroy, G. E.
Partner: UNT Libraries Government Documents Department
open access

Shorter Contributions to General Geology, 1929

Description: From introduction: This report describes the deposits of analcite in the Green River formation, to compare them with other similar deposits, and to present them with other similar deposits, and to present the observations and inferences that led him to explain them as alteration products of volcanic ash that fell into an ancient saline lake. The report also records the occurrence of several thin beds of sepiolite, or meerschaum, in the Green River formation and presents new data on the molds of… more
Date: 1930
Creator: Mendenhall, W. C.
Partner: UNT Libraries Government Documents Department
open access

Wind-Tunnel Tests on a Series of Wing Models Through a Large Angle of Attack Range Part 1: Force Tests

Description: "This investigation covers force tests through a large range of angle of attack on a series of monoplane and biplane wing models. The tests were conducted in the atmospheric wind tunnel of the National Advisory Committee for Aeronautics. The models were arranged in such a manner as to make possible a determination of the effects of variations in tip shape, aspect ratio, flap setting, stagger, gap, decalage, sweep back, and airfoil profile. The arrangements represented most of the types of wing … more
Date: 1930
Creator: Knight, Montgomery & Wenzinger, Carl J.
Partner: UNT Libraries Government Documents Department
open access

Catalog of North Texas State Teachers College: 1930-1931

Description: Catalog for North Texas State College includes information about class offerings as well as general information about the school (academic calendar, list of officers and faculty, admissions and degree requirements, financial information, etc.).
Date: June 1930
Creator: North Texas State Teachers College
Partner: UNT Libraries Special Collections
Back to Top of Screen