|
I 28.27:6768
|
Manganese : its occurrence, milling, and metallurgy : part I |
1 |
|
I 28.27:6769
|
Manganese : its occurrence, milling, and metallurgy : part II |
1 |
|
I 28.27:6770
|
Manganese : its occurrence, milling, and metallurgy : part III |
1 |
|
I 28.27:6771
|
Manganese : its occurrence, milling, and metallurgy : part IV |
1 |
|
I 28.27:6772
|
Manganese : its occurrence, milling, and metallurgy : part V |
1 |
|
I 28.27:6776
|
Lead and zinc mining and milling in the United States : current practices and costs |
1 |
|
I 28.27:6784
|
Ore-dressing bibliography, 1931-1932 |
1 |
|
I 28.27:6787
|
Placer mining in the western United States : part II. Hydraulicking, treatment of placer concentrates, and marketing of gold |
1 |
|
I 28.27:6790
|
Asbestos : domestic and foreign deposits |
1 |
|
I 28.27:6792
|
Trends in practice and costs of concentrating copper ores |
1 |
|
I 28.27:6794
|
Consumption and prices of nonmetallic minerals |
1 |
|
I 28.27:6797
|
The use of treated mine ties and timbers in Illinois and Indiana coal mines |
1 |
|
I 28.27:6799
|
Mining methods and costs at Herron and Laster Lease, Superior, Ariz |
1 |
|
I 28.27:6806
|
Mining methods and costs at the Cresson Mine, Cripple Creek, Colo |
1 |
|
I 28.27:6816
|
Waste filling of stopes |
1 |
|
I 28.27:6817
|
Asbestos : general information |
1 |
|
I 28.27:6821
|
Tungsten. Part 1 |
1 |
|
I 28.27:6822
|
Mica |
1 |
|
I 28.27:6823
|
Mining methods and costs at the mine of the St. Joseph Lead Co., Atlanta, Idaho |
1 |
|
I 28.27:6824
|
Mining and milling methods at the Big Jim Mine, Oatman, Ariz |
1 |