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Analyses of Tipple and Delivered Samples of Coal: (Collected During the Fiscal Years 1948 to 1950 Inclusive)
From Forward: "This bulletin is the first of a new series, which includes analyses of only tipple and delivered coal. It covers samples collected throughout the United States from July 1, 1947 to June 30, 1950 (fiscal years 1948-50). It is planned that future publications of this series will cover a period of one fiscal year only and be issued as soon as possible after June 30 of each year."
Date:
1953
Creator:
Snyder, N. H. & Aresco, S. J.
System:
The UNT Digital Library
Annual Report of the Secretary of the Interior for 1949: Synthetic Liquid Fuels, Part 3. - Liquid Fuels from Agricultural Residues
Report issued by the U.S. Bureau of Mines on the development and production of synthetic liquid fuels derived from agricultural products. The amount of synthetic fuels developed from corn is presented. The report includes tables, maps, and illustrations.
Date:
February 1950
Creator:
unknown
System:
The UNT Digital Library
Zinc-Lead-Copper Resources and General Geology of the Upper Mississippi Valley District
From introduction: This report discusses the general geology of the Upper Mississippi Valley zinc-lead district, the distribution of ore deposits, and some relations of the ore deposits to the major geologic features.
Date:
1955
Creator:
Heyl, Allen V.; Lyons, Erwin J.; Agnew, Allen F. & Behre, Charles H., Jr.
System:
The UNT Digital Library