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United States Earthquakes, 1943
Report discussing earthquake activity in the United States during 1943. The report is broken down by regions and has sections for specific earthquakes.
United States Earthquakes, 1944
Report discussing earthquake activity in the United States during 1944. The report is broken down by regions and has sections for specific earthquakes.
World Survey of Tantalum Ore
Report issued by the U.S. Bureau of Mines discussing the occurrences of tantalum in different areas of the world. The tantalum deposits are described in reference to each individual country that it is found in. This report includes maps, tables, and illustrations.