UNT Libraries Government Documents Department - 2 Matching Results
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- Gypsum Products: Their Preparation and Uses
- Technical report issued by the Bureau of Mines over the different uses of gypsum. The sources and uses of gypsum are presented and discussed. This report includes tables, photographs, and illustrations.
- Microscopic Structure and Concentratability of the Important Iron Ores of the United States
- Outline of Problem: "This paper covers a survey of 19 ores collected from seven of the more important iron-ore districts of the United States and is a contribution by the ore-dressing section of the United States Bureau of Mines to general research program on iron and steel being conducted by the Bureau."