|
I 28.27:6572
|
Vanadium |
1 |
|
I 28.27:6573
|
Milling methods and costs at the concentrator of the Miami Copper Co., Miami, Ariz |
1 |
|
I 28.27:6574
|
Milling methods at the Balmat Mill of the St. Joseph Lead Co., Balmat, St. Lawrence County, N.Y. |
1 |
|
I 28.27:6580
|
Methods and costs of mining and preparing sand and gravel at the plant of the Ward Sand and Gravel Co., Oxford, Mich |
1 |
|
I 28.27:6581
|
Methods and costs of mining and preparing sand and gravel at the Clowdy Plant of the Dallas Washed and Screened Gravel Co., Dallas, Tex |
1 |
|
I 28.27:6582
|
Sand and gravel dredging methods and costs of J.K. Davison & Bro., Pittsburgh, Pa |
1 |
|
I 28.27:6587
|
Milling methods and costs at the Morning Concentrator of the Federal Mining and Smelting Co., Mullan, Idaho |
1 |
|
I 28.27:6588
|
Sinking practice and costs at the Pim Shaft, St. Louis Smelting & Refining Works, National Lead Co., St. Francois, Mo |
1 |
|
I 28.27:6589
|
Index to Geophysical Abstracts : no. 21 to no. 32 |
1 |
|
I 28.27:6590
|
Milling methods and costs at the Page Concentrator of the Federal Mining and Smelting Co., Kellogg, Idaho |
1 |
|
I 28.27:6591
|
The cost of developing to the operating stage and equipping a small or medium-sized mine in the Tri-State lead and zinc district |
1 |
|
I 28.27:6592
|
Methods and costs of mining and preparing gravel and sand for market at the plant of the Seaboard Sand and Gravel Corporation, Port Jefferson, N.Y. |
1 |
|
I 28.27:6593
|
Geophysical abstracts, no. 1-127 |
1 |
|
I 28.27:6594
|
Sampling and exploration by means of hammer drills |
1 |
|
I 28.27:6597
|
Public services for the identification of mineral specimens |
1 |
|
I 28.27:6598
|
A mechanically driven level rock tunnel |
1 |
|
I 28.27:6599
|
Quarrying methods and costs at the Sloan quarry of the United States Lime Products Corporation, Sloan, Nev |
1 |
|
I 28.27:6600
|
Milling methods and costs at the lead concentrator of the Hecla Mining Co., Gem, Idaho |
1 |
|
I 28.27:6601
|
Mining methods and costs at the Mt. Hope mine of the Warren Foundry and Pipe Corporation, Mt. Hope, N.J. |
1 |
|
I 28.27:6602
|
Shaft-sinking methods, practices, and costs of the Consolidation Coal Co. at its no. 261 mine, Caretta, McDowell County, W. Va |
1 |