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States
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Analyses of Coals in the United States with Descriptions of Mine and Field Samples Collected between July 1, 1904 and June 30, 1910 Part 2. Descriptions of Samples
From Introduction: "This volume contains the descriptions of the samples whose analyses are published in the preceding volume, Part I of this bulletin. The descriptions have been compiled from the notebooks of the persons who collected the samples, have been condensed from accounts given in published reports of the United States Geological Survey, or have furnished by the collection themselves. Inasmuch as the descriptions represent the work of many persons during a period of six years, and inasmuch as they were recorded under widely differing conditions, they necessarily vary in fullness detail."
Date:
1913
Creator:
Lord, N. W.
System:
The UNT Digital Library
Copper Mining in North America
From introduction: "In this paper are assembled and summarized many subjects relating to the copper industry in North America. Production of mines and districts, history of the industry in North America. Production of mines and districts, history of the industry, geology, of the principal deposits, and mining methods and costs are discussed."
Date:
1938
Creator:
Gardner, E. D.; Johnson, C. H. & Butler, B. S.
System:
The UNT Digital Library
Mercury: A Materials Survey
Report issued by the U.S. Bureau of Mines discussing materials surveys conducted on mercury. As stated in the foreword, "the surveys dealing with metals and minerals summarize the demand-supply position in the United States and include information on production, imports, consumption, exports, substitutes, and pertinent history" (p. v). This report includes maps, tables, illustrations, and photographs.
Date:
1959
Creator:
Pennington, James W. & Bailey, Edgar H.
System:
The UNT Digital Library
On Invertebrate Fossils from the Pacific Coast
A report about fossils from the Chico-Téjon series of California. These fossils constitute additions to the already known molluscan fauna of an important series of rich strata.
Date:
1889
Creator:
White, Charles A.
System:
The UNT Digital Library
Safety Practices in Dredging and Hydraulic Mining
From Scope of Report: "This paper is based upon the observations made and the records received while dredging and hydraulic-mining operations were visited in Alaska during 1946 and in California during 1946 and 1947. Data from 30 active dredging operations and 34 active hydraulic operations are incorporated in this paper."
Date:
1948
Creator:
Fatzinger, R. W.
System:
The UNT Digital Library
United States Earthquakes, 1938
Report discussing earthquake activity in the United States during 1938. The report is broken down by regions and has sections for specific earthquakes.
Date:
1938
Creator:
unknown
System:
The UNT Digital Library
United States Earthquakes 1939
From Introduction: "This publication is a summary of earthquake activity in the United States and the regions under its jurisdiction for the calendar year 1939. A history of the more important shocks of the country appears in Serial 609 of the Bureau, "Earthquake History of the United States: Part I-"Continental United States (Exclusive of California and Western Nevada) and Alaska," and Part II. -"Stronger Earthquakes of California and Western Nevada, Revised (1941) edition."
Date:
1941
Creator:
unknown
System:
The UNT Digital Library