EBD C22.11-6042
|
Timbering along robbing line; factors influencing falls of roof in coal mines |
1 |
EBD C22.11-6043
|
Fatal accident from entering unventilated raise after blasting |
1 |
EBD C22.11-6044
|
Mica |
1 |
EBD C22.11-6045
|
Coal-mine safety organization |
1 |
EBD C22.11-6046
|
Wanted more detailed reports on electrical accidents. |
1 |
EBD C22.11-6048
|
Instructions for sampling atmospheric dust by impinger method |
1 |
EBD C22.11-6051
|
Permissible explosives defined |
1 |
EBD C22.11-6052
|
Mine safety as affected by electrification |
1 |
EBD C22.11-6053
|
Regulations and inspection prevent accidents from falls of roof |
1 |
EBD C22.11-6054
|
Practical underground education of coal miner |
1 |
EBD C22.11-6055
|
Some phases of accident prevention in industry |
1 |
EBD C22.11-6056
|
Prevention of accidents with explosives in Tri-State zinc and lead ore producing district |
1 |
EBD C22.11-6057
|
Determination of carbon monoxide in mines with ""iodine pentoxide'' detector |
1 |
EBD C22.11-6059
|
Accident prevention measures at Moctezuma Copper Company |
1 |
EBD C22.11-6060
|
Work of experiment stations of Bureau of Mines |
1 |
EBD C22.11-6061
|
Sources and distribution of major petroleum products, central U.S., 1926 |
1 |
EBD C22.11-6063
|
Mine rescue organization in Coeur D'Alene mining district, Idaho |
1 |
EBD C22.11-6064
|
Accident-prevention work of Midwest Refining Co |
1 |
EBD C22.11-6066
|
Form of report for underground accidents |
1 |
EBD C22.11-6067
|
Touch paper |
1 |