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International conference on mine safety research at Buxton, England, July 1931
| Location | Call # | Status |
|---|---|---|
| Joyner - Microforms B300 | C22.11-6670 | ✔ Available |
Tests of strength of roof supports used in anthracite mines of Pennsylvania
| Location | Call # | Status |
|---|---|---|
| Joyner - Microforms B300 | C22.3-303 | ✔ Available |
Mining petroleum by underground methods
| Location | Call # | Status |
|---|---|---|
| Joyner - Microforms B300 | C22.3-351 | ✔ Available |
Effective rock-dusting of coal mines
| Location | Call # | Status |
|---|---|---|
| Joyner - Microforms B300 | C22.11-6039 | ✔ Available |
Potash mining in Germany and France
| Location | Call # | Status |
|---|---|---|
| Joyner - Microforms B300 | C22.3-274 | ✔ Available |
Use of brattice cloth in coal mines
| Location | Call # | Status |
|---|---|---|
| Joyner - Microforms B300 | C22.12-2872 | ✔ Available |
Experiments to determine minimum amount of coal-dust required for propagation of mine explosion
| Location | Call # | Status |
|---|---|---|
| Joyner - Microforms B300 | C22.12-3132 | ✔ Available |