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Show The Deepeat Mine In the World. It is at St. Andre elu Poirier, France, and yearly produces 300,000 tons of coal Tho mine is worked with two shafts, one 3,953 feet deep and the other 8,083. The latter shaft is being deepened and will soon touch the 4,000 foot level. A remarkable re-markable feature in this deep mine is the comparative low temperature experienced, experi-enced, which seldom riBes above 75 degs. Fahrenheit. The gold and Bilver mines of the Pacific coast of our own country, at a depth of less than half that of the French coal mine, often have much difficulty dif-ficulty in keeping the temperature low enough to admit of working. In some levels of tho great Comstock lode tho temperature rises as high as 120 degs. St. Louis Republic. |