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Primary view of Copper Mining in North America
Gardner, E. D.; Johnson, C. H. & Butler, B. S.
1938
Primary view of General Index to Experiment Station Record, Volumes 61 to 70, 1929-1934
United States. Office of Experiment Stations.
June 1937
Primary view of Asbestos
Bowles, Oliver
1937
Primary view of Stoping Methods and Costs
Jackson, Charles Freeman & Gardner, E. D.
1936
Primary view of United States Earthquakes, 1935
unknown creator
1935
Primary view of Adjusting Corn Belt Farming to Meet Corn-Borer Conditions
Myres, Kenneth Hayes, 1898-
1932
Primary view of Experiment Station Record, Volume 65, July-December, 1931
United States. Office of Experiment Stations.
1932
Primary view of Gold Mining and Milling in the United States and Canada: Current Practices and Costs
Jackson, Charles F. & Knaebel, John B.
1932
Primary view of General Index to Experiment Station Record, Volumes 41 to 50, 1919-1924
United States. Office of Experiment Stations.
March 1931
Primary view of Results of Electrical Resistivity and Electrical Induction Measurements at Abana Mine, Quebec, Canada: Explanation of Some Factors Associated with Induction Method
Potter, E. Vernon & Lee, F. W.
1931
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