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Red iron-ore beds of Silurian age in northeastern Alabama, northwestern Georgia, and eastern Tennessee

Mining and smelting of iron ore in Alabama, northwestern Georgia, and eastern Tennessee date almost to Revolutionary War days, bus substantial production in the Southeast was not attained until after 1850. Numerous furnaces were erected int the region, especially in and near Birmingham, Ala., which is still the principal iron and steel-making center of the area. Locally mined iron ores formed the

Topographical map of United Kingdom of Libya

No abstract available.

Tungsten in the United States, exclusive of Alaska and Hawaii

The accompanying map shows the tungsten deposits of the United States (exclusive of Alaska and Hawaii). The relative importance of the deposits, groups, or districts is shown by four symbols, indicating tungsten contents of: (1) greater than 10,000 short tons of tungsten metal, (2) 10,000 to 500 tons, (3) 500 to 10 tons, and (4) less than 10 tons. In assigning size, production plus estimated reser