Call Number (LC) Title Results
I 28.27:6578 Good rock-dusting and ventilation practice in two Alabama coal mines / 1
I 28.27:6579 Sodium and potassium metals / 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 28.27:6583 Geophysical abstracts : no. 32 / 1
I 28.27:6584 Notes pertaining to safety inspections of permissible electric mine equipment / 1
I 28.27:6585 Economic size of metal-mine airways / 1
I 28.27:6586 Mining practice at the Edwards mine of the St. Joseph Lead Co., St. Lawrence County, N.Y. / 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. 33 / 1
I 28.27:6594 Sampling and exploration by means of hammer drills / 1
I 28.27:6595 Data in reference to installation of cables in shafts and boreholes / 1
I 28.27:6596 Rock dust does stop or limit mine explosions / 1
I 28.27:6597 Public services for the identification of mineral specimens / 1