EBD C22.11-6562
|
Abrasive and industrial diamonds |
1 |
EBD C22.11-6563
|
Soapstone |
1 |
EBD C22.11-6564
|
Consumption of primary or virgin tin in U.S |
1 |
EBD C22.11-6565
|
Mining methods and costs at Braden Copper Co.'s mines, Sewell, Chile |
1 |
EBD C22.11-6566
|
Chromium general information. |
1 |
EBD C22.11-6567
|
Medical service, accident reports, compensation, and welfare at iron mines in Lake Superior region |
1 |
EBD C22.11-6570
|
How to prevent death and injury from falls of roof in coal mines |
1 |
EBD C22.11-6571
|
Fuels consumed by Federal Government during fiscal year ended June 30, 1930 |
1 |
EBD C22.11-6572
|
Vanadium |
1 |
EBD C22.11-6573
|
Milling methods and costs at concentrator of Miami Copper Co., Miami, Ariz |
1 |
EBD C22.11-6574
|
Milling methods at Balmat mill of St. Joseph Lead Co., Balmat, St. Lawrence County, N.Y |
1 |
EBD C22.11-6576
|
Tabular review of State laws relating to taxation and inspection of gasoline and other petroleum products |
1 |
EBD C22.11-6577
|
Guarding trolley wires in mines |
1 |
EBD C22.11-6578
|
Good rock-dusting and ventilation practice in 2 Alabama coal mines |
1 |
EBD C22.11-6579
|
Sodium and potassium metals |
1 |
EBD C22.11-6580
|
Methods and costs of mining and preparing sand and gravel at plant of Ward Sand and Gravel Co., Oxford, Mich |
1 |
EBD C22.11-6581
|
Methods and costs of mining and preparing sand and gravel at Clowdy plant of Dallas Washed and Screened Gravel Co., Dallas, Tex |
1 |
EBD C22.11-6582
|
Sand and gravel dredging methods and costs of J. K. Davison & Bro., Pittsburgh, Pa |
1 |
EBD C22.11-6584
|
Notes pertaining to safety inspections of permissible electric mine equipment |
1 |
EBD C22.11-6585
|
Economic size of metal-mine airways |
1 |