Analyses of Mine and Car Samples of Coal Collected in the Fiscal Years 1916 to 1919 (open access)

Analyses of Mine and Car Samples of Coal Collected in the Fiscal Years 1916 to 1919

From Introduction: "The present bulletin presents analyses and descriptions of samples collected during the fiscal years 1916 to 1919. In order that the material in this bulletin may be used to supplement that presented in Bulletins 22, 85, and 123, the same plan of geographical classification has been followed, the analyses and descriptions of the samples being grouped in alphabetical order according to the State, country, and town near which the mines or prospects sampled are situated."
Date: 1922
Creator: Fieldner, Arno C.; Selvig, Walter A. & Paul, J. W.
System: The UNT Digital Library
Annual Report of the Director of the Bureau of Standards to the Secretary of Commerce for the Fiscal Year Ended June 30, 1922 (open access)

Annual Report of the Director of the Bureau of Standards to the Secretary of Commerce for the Fiscal Year Ended June 30, 1922

Annual report of the director of the U.S. National Bureau of Standards discussing the staff, facilities, and activities of the agency during the fiscal year 1921-1922.
Date: 1922
Creator: Stratton, S. W.
System: The UNT Digital Library