I 28.27:7739
|
International cooperation in reducing mine hazards / |
1 |
I 28.27:7740
|
Reconnaissance of the "Red Bed" copper deposits in Southeastern Colorado and New Mexico / |
1 |
I 28.27:7741
|
Drill-dust collectors approved by the Bureau of Mines as of January 31, 1956 / |
1 |
I 28.27:7742
|
Safety in pneumatic drilling and related blasting operations. Opencut mine, Morenci Branch, Phelps Dodge Corp., Morenci, Ariz. / |
1 |
I 28.27:7743
|
Mining methods and costs at the Morning mine, American Smelting & Refining Co., Shoshone County, Idaho / |
1 |
I 28.27:7744
|
Analysis of 346 accidents : underground iron-ore mines, Lake Superior district / |
1 |
I 28.27:7745
|
Chrysotile-asbestos deposits of Arizona : (supplement to information circular 7706) / |
1 |
I 28.27:7746
|
National motor-gasoline survey : summer 1955 / |
1 |
I 28.27:7747
|
National annual survey of aviation fuels : 1955 / |
1 |
I 28.27:7748
|
Tungsten potential in Chaffee, Fremont, Gunnison, Lake, Larimer, Park and Summit Counties, Colo. / |
1 |
I 28.27:7749
|
Safety aspects of controls and operations of belt conveyors in coal mines / |
1 |
I 28.27:7750
|
Water flooding of oil sands in Butler and Greenwood Counties, Kans. / |
1 |
I 28.27:7751
|
Bibliography of investment and operating costs for chemical and petroleum plants : supplement 2 (July 1952-June 1954) / |
1 |
I 28.27:7751-7760
|
Research and technologic work on coal and related investigations : 1954 / |
1 |
I 28.27:7752
|
Ceramic industry development and raw-material resources of Oregon, Washington, Idaho, and Montana / |
1 |
I 28.27:7753
|
Granite as dimension stone / |
1 |
I 28.27:7754
|
Outlook and research possibilities for bituminous coal / |
1 |
I 28.27:7755
|
Rock dusting and sampling including wet rock dusting at the Bureau of Mines experimental coal mine / |
1 |
I 28.27:7756
|
Research and technologic work on coal and related investigations : 1954 / |
1 |
I 28.27:7757
|
Safety with solvents / |
1 |