Call Number (LC) Title Results
I 28.27:7049 Gypsum and anhydrite.
Gypsum and anhydrite / 		3
I28.27..7049 Gypsum and anhydrite. 2
I 28.27:7050 Mine Safety Board decision 30 : Main fan installations at coal mines.
Mine Safety Board decision 30 : main fan installations at coal mines / 		3
I28.27..7050 Mine Safety Board decision 30 : Main fan installations at coal mines. 2
I 28.27:7050-7074 Some phases of haulage accident prevention in anthracite mines /
Aerial tramways in the metal-mining industry. construction and operating costs / 		2
I 28.27:7051 First­aid training and results in Logan and Mingo counties, W. Va.
First-aid training and results in Logan and Mingo counties, W. Va. / 		3
I28.27..7051 First­aid training and results in Logan and Mingo counties, W. Va. 2
I 28.27:7052 Annual report of research and technologic work on coal, fiscal year 1938.
Annual report of research and technologic work on coal, fiscal year 1938 / 		3
I28.27..7052 Annual report of research and technologic work on coal, fiscal year 1938. 2
I 28.27:7053 Heat liberated in the low-temperature oxidation of anthracite /
Heat liberated in low-­temperature oxidation of anthracite. 		3
I28.27..7053 Heat liberated in low-­temperature oxidation of anthracite. 2
I 28.27:7054 Lithium.
Lithium / 		3
I28.27..7054 Lithium. 2
I 28.27:7055 Annual report of Mining Division, fiscal year 1938.
Annual report of the Mining Division, for the fiscal year 1938 / 		3
I28.27..7055 Annual report of Mining Division, fiscal year 1938. 2
I 28.27:7056 Reducing nipping hazards when tramming coal-­mining machinery.
Reducing "nipping" hazards when tramming coal-mining machinery / 		3
I28.27..7056 Reducing nipping hazards when tramming coal-­mining machinery. 2
I 28.27:7057 State regulations pertaining to hoisting of men.
State regulations pertaining to hoisting of men / 		3
I28.27..7057 State regulations pertaining to hoisting of men. 2
I 28.27:7058 Mining and milling methods and costs at Alice unit of American Smelting & Refining Co., Alice, Colo.
Mining and milling methods and costs at the Alice Unit of the American Smelting & Refining Co., Alice, Colo. / 		3