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The Beet Leaf-Beetle and Its Control
Report discussing the beet leaf-beetle, which is common in the Rocky Mountain region. Discussion include physical appearance, geographic distribution, life cycle, affected plants, and methods of control.
Date:
1921
Creator:
Chittenden, F. H. (Frank Hurlbut), 1858-1929
Object Type:
Pamphlet
System:
The UNT Digital Library
Flotation Tests of Idaho Ores
From Introduction: "This paper covers part of the investigations carried on by the United States Bureau of Mines in cooperation with the Idaho Bureau of Mines, the University of Idaho, and certain mining companies of the Coeur d' Alene region. Although the results of the tests included in this report are not to be considered final, they indicate possibilities and may suggest others leading to a solution of the problem of separating lead and zinc sulphides by differential flotation in the treatment of certain ores."
Date:
1921
Creator:
Wright, Clarence A.; Parmelee, James G. & Norton, James T.
Object Type:
Report
System:
The UNT Digital Library