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Asbestos

Description: From Introduction: "This report covers the essential features of the asbestos industry, including occurrence, production, mining, milling, utilization, international trade, and marketing."
Date: 1937
Creator: Bowles, Oliver
Partner: UNT Libraries Government Documents Department
open access

Sponge-Iron Experiments at Mococo

Description: From Forward: "This bulletin covers one phase of the program of the Metallurgical Division of the Bureau of Mines on the direct production of iron from its ores. Another phase of this program has been covered in Bulletin 391, Microscopic Structure and Concentratability of the Important Iron Ores of the United States, by S. R. B. Cooke. Methods of iron-core concentration will be discussed in future bulletins."
Date: 1936
Creator: Maier, Charles G.
Partner: UNT Libraries Government Documents Department
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