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Report of the Tenth National Conference on Weights and Measures, 1915

Description: Report of the annual conference on weights and measures, hosted by the U.S. National Bureau of Standards in Washington D.C. It includes conference proceedings, a list of attendees, information about committees and officers, and other reports or commentaries discussed at the meetings.
Date: 1916
Creator: United States. Bureau of Standards.
Item Type: Report
Partner: UNT Libraries Government Documents Department

The Determination of the Constants of Instrument Transformers

Description: Report issued by the Bureau of Standards over studies on instrument transformers. As stated in the first paragraph, "the principle of the method here described is the same for both current and potential transformers, being an application of the potentiometer method" (p. 281). The methods and equipment studied are presented and discussed.
Date: 1911
Creator: Agnew, P. G. & Fitch, T. T.
Item Type: Report
Partner: UNT Libraries Government Documents Department

An Apparatus for Measuring the Relative Wear of Sole Leathers, and the Results Obtained with Leather from Different Parts of a Hide

Description: Technical paper issued by the Bureau of Standards over studies conducted on the quality of sole leather. As stated in the introduction, "the development of a simple method for quickly determining the durability of sole leather seemed desirable, and this paper discusses a laboratory apparatus designed for this purpose and also presents the results of tests made to date to determine the relative wear of leather from different parts of the hide" (p. 3). This paper includes illustrations, and photographs.
Date: November 22, 1919
Creator: Hart, R. W. & Bowker, B. C.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Measurements on the Index of Refraction of Air for Wave Lengths from 2218 A to 9000 A

Description: Report issued by the Bureau of Standards over measurements of air refraction. Comparison of older studies of this kind is presented. As stated in the introduction, "a brief review of the objects, experimental methods, and results of these earlier investigations will assist in explaining the purpose of this additional investigation on the index of refraction and dispersion of air described in detail in this paper" (p. 698). This report includes tables, illustrations, and photographs.
Date: 1918
Creator: Meggers, W. F. & Peters, Chauncey G.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Observations on Ocean Temperatures in the Vicinity of Icebergs and in Other Parts of the Ocean

Description: Report issued by the Bureau of Standards over studies on ocean temperatures. Temperatures in the vicinity of icebergs are measured and compared with temperatures taken from other areas of the ocean. This report includes photographs, and illustrations.
Date: 1914
Creator: Waidner, C. W.; Dickinson, H. C. & Crowe, J. J.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Coupled Circuits in Which the Secondary has Distributed Inductance and Capacity

Description: Report issued by the Bureau of Standards over studies conducted on coupled circuits. Emphasis was placed on the secondary circuit and its inductance and capacity. The results of the studies are presented and discussed. This report includes illustrations.
Date: 1911
Creator: Cohen, Louis
Item Type: Report
Partner: UNT Libraries Government Documents Department

Density and Thermal Expansion of Ethyl Alcohol and of its Mixtures with Water

Description: Report issued by the Bureau of Standards over the thermal expansion of ethyl alcohol. As stated in the introduction, "the scope of the present work includes the preparation of pure anhydrous ethyl alcohol, the determination of the density and thermal expansion of this alcohol and its mixtures with water, and the construction from these data of tables for convenient use" (p. 328). This report includes tables, and illustrations.
Date: 1913
Creator: Osborne, N. S.; McKelvy, E. C. & Bearce, H. W.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Effect of Rate of Temperature Change on the Transformations in an Alloy Steel

Description: Scientific paper issued by the Bureau of Standards over studies conducted on the effects of temperature change on alloy steel. The experimental methods used and the results are presented and discussed. This paper includes tables, photographs, and illustrations.
Date: July 10, 1919
Creator: Scott, Howard
Item Type: Report
Partner: UNT Libraries Government Documents Department

Effective Resistance and Inductance of Iron and Bimetallic Wires

Description: Report issued by the Bureau of Standards over the use of bimetallic wires. The resistance and inductance of the bimetallic wires are studied. This report includes tables, and illustrations.
Date: 1916
Creator: Miller, John M.
Item Type: Report
Partner: UNT Libraries Government Documents Department

A Modified Method for the Determination of Relative Wave-Lengths

Description: Report issued by the Bureau of Standards over developments made to the methods for the determination of relative wave-lengths. The methods developed are discussed. This report includes tables, and illustrations.
Date: 1911
Creator: Priest, Irwin G.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Electrolysis and its Mitigation

Description: Technical paper issued by the Bureau of Standards over studies conducted on electrolysis. As stated in the introduction, "this investigation has included a study of the physical laws governing electrolytic and self-corrosion in soils, an extended investigation of the effects of electric currents on plain and reinforced concrete, and a study of the work of previous investigators relating to the subject of electrolysis and its prevention" (p. 5). This paper includes tables, illustrations, and photographs.
Date: November 25, 1918
Creator: Rosa, Edward B. & McCollum, Burton
Item Type: Report
Partner: UNT Libraries Government Documents Department

Equilibrium in the System: Lead Acetate, Lead Oxide, and Water, at 25⁰

Description: Report issued by the Bureau of Standards over studies on basic acetates and their importance as an effective clarifying agent. The analytical procedures and the results of the studies are discussed. This report includes tables, and illustrations.
Date: 1915
Creator: Jackson, Richard F.
Item Type: Report
Partner: UNT Libraries Government Documents Department

The Electrical Conductivity of Commercial Copper

Description: Report issued by the Bureau of Standards over the conductivity of copper. Samples of commercial copper were studied, and the results are presented and discussed. This report includes tables, illustrations, and photographs.
Date: 1911
Creator: Wolff, F. A. & Dellinger, J. H.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Thermal Expansion of Insulating Materials

Description: Scientific paper issued by the Bureau of Standards over studies on thermal expansion. Expansivity tests are conducted on many different insulating materials. The results of the tests are discussed. This paper includes tables, photographs, and illustrations.
Date: December 27, 1919
Creator: Souder, Wilmer H. & Hidnert, Peter
Item Type: Report
Partner: UNT Libraries Government Documents Department

Platinum Resistance Thermometry at High Temperatures

Description: Report issued by the Bureau of Standards over platinum resistance thermometry. The advantages and limitations at high temperatures are discussed. This report includes tables, and illustrations.
Date: 1911
Creator: Waidner, C. W. & Burgess, George K.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Special Studies in Electrolysis Mitigation: 4. A Preliminary Report on Electrolysis Mitigation in Elyria, Ohio, with Recommendations for Mitigation

Description: Technical paper issued by the Bureau of Standards over surveys conducted on the electrical conditions of railway tracks in Elyria, Ohio. The results of the surveys are presented and discussed. This paper includes tables, maps, and illustrations.
Date: January 22, 1916
Creator: McCollum, Burton & Logan, K. H.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Standard Test Specimens of Zinc Bronze (Cu 88, Sn 10, Zn 2) - Parts 1 and 2: Part 1. - Preparation of Specifications, Part II. - Microstructure

Description: Technical paper issued by the Bureau of Standards over tests conducted on the preparation of an alloy. The tests conducted, and their results are presented and discussed. This paper includes tables, illustrations, and photographs.
Date: March 15, 1916
Creator: Karr, C. P. & Rawdon, Henry S.
Item Type: Report
Partner: UNT Libraries Government Documents Department

The Ultra-Violet and Visible Transmission of Eye-Protective Glasses

Description: Technical paper issued by the Bureau of Standards over studies conducted on the development of protective eye wear. The methods and equipment used are presented and discussed. This paper includes tables, and illustrations.
Date: June 7, 1919
Creator: Gibson, K. S. & McNicholas, H. J.
Item Type: Report
Partner: UNT Libraries Government Documents Department