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Mines (BUREAU OF a bureau)

BUREAU OF, a bureau of the Department of the Interior, estab- MINERVA lished in 1910 for the purpose of conducting scientific and technologic investigations relating to mining and the preparation and utilization of mineral substances, with a view to the increase of MINIATURE PAINTING health, safety, and efficiency. It has devoted much attention to the problem of mine gases, rescues from mine disasters, and first-aid training for miners. It cooperates in its investigations with the mining departments of all the colleges and universities which have such departments. In 1920 the bureau had 11 mining experiment stations, 9 mine safety cars, and 7 mine safety stations. During the World War the bureau co-operated with all the departments of the government in the investigation of minerals, ores, and metals especially needed. The work of the bureau has greatly decreased the fatalities from coal-mine accidents.