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open access

Copper Mining in North America

Description: 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.
open access

United States Earthquakes, 1931

Description: Report discussing earthquake activity in the United States during 1931. The report is broken down by regions and has sections for specific earthquakes.
Date: 1932
Creator: Neumann, Frank
open access

United States Earthquakes, 1932

Description: Report discussing earthquake activity in the United States during 1932. The report is broken down by regions and has sections for specific earthquakes.
Date: 1932
open access

United States Earthquakes, 1933

Description: Report discussing earthquake activity in the United States during 1933. The report is broken down by regions and has sections for specific earthquakes.
Date: 1933
open access

United States Earthquakes, 1934

Description: Report discussing earthquake activity in the United States during 1934. The report is broken down by regions and has sections for specific earthquakes.
Date: 1934
open access

United States Earthquakes, 1935

Description: Report discussing earthquake activity in the United States during 1935. The report is broken down by regions and has sections for specific earthquakes.
Date: 1935
open access

United States Earthquakes, 1936

Description: Report discussing earthquake activity in the United States during 1936. The report is broken down by regions and has sections for specific earthquakes.
Date: 1936
open access

United States Earthquakes, 1937

Description: Report discussing earthquake activity in the United States during 1937. The report is broken down by regions and has sections for specific earthquakes.
Date: 1937
open access

United States Earthquakes, 1938

Description: 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
open access

United States Earthquakes 1940

Description: Report discussing earthquake activity in the United States during 1940. The report is broken down by regions and has sections for specific earthquakes.
Date: 1940
open access

United States Earthquakes 1941

Description: Report discussing earthquake activity in the United States during 1941. The report is broken down by regions and has sections for specific earthquakes.
Date: 1941
open access

United States Earthquakes 1942

Description: Report discussing earthquake activity in the United States during 1942. The report is broken down by regions and has sections for specific earthquakes.
Date: 1942
open access

United States Earthquakes, 1943

Description: Report discussing earthquake activity in the United States during 1943. The report is broken down by regions and has sections for specific earthquakes.
Date: 1943
open access

United States Earthquakes, 1945

Description: Report discussing earthquake activity in the United States during 1945. The report is broken down by regions and has sections for specific earthquakes.
Date: 1945
open access

United States Earthquakes, 1946

Description: Report discussing earthquake activity in the United States during 1946. The report is broken down by regions and has sections for specific earthquakes.
Date: 1946
open access

United States Earthquakes, 1947

Description: Report discussing earthquake activity in the United States during 1947. The report is broken down by regions and has sections for specific earthquakes.
Date: 1947
open access

United States Earthquakes, 1949

Description: Report discussing earthquake activity in the United States during 1949. The report is broken down by regions and has sections for specific earthquakes.
Date: 1949
open access

United States Earthquakes, 1951

Description: Report discussing earthquake activity in the United States during 1951. The report is broken down by regions and has sections for specific earthquakes.
Date: 1951
open access

United States Earthquakes, 1952

Description: Report discussing earthquake activity in the United States during 1952. The report is broken down by regions and has sections for specific earthquakes.
Date: 1952
open access

United States Earthquakes, 1954

Description: Report discussing earthquake activity in the United States during 1954. The report is broken down by regions and has sections for specific earthquakes.
Date: 1954
open access

United States Earthquakes, 1955

Description: Report discussing earthquake activity in the United States during 1955. The report is broken down by regions and has sections for specific earthquakes.
Date: 1955
open access

United States Earthquakes, 1956

Description: Report discussing earthquake activity in the United States during 1956. The report is broken down by regions and has sections for specific earthquakes.
Date: 1956
open access

United States Earthquakes, 1957

Description: Report discussing earthquake activity in the United States during 1957. The report is broken down by regions and has sections for specific earthquakes.
Date: 1957
open access

United States Earthquakes, 1961

Description: Report discussing earthquake activity in the United States during 1961. The report is broken down by regions and has sections for specific earthquakes.
Date: 1961
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