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The Ultra-Violet and Visible Transmission of Eye-Protective Glasses
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.
System:
The UNT Digital Library
An Apparatus for Measuring the Relative Wear of Sole Leathers, and the Results Obtained with Leather from Different Parts of a Hide
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, R. C.
System:
The UNT Digital Library