Productivity

The average number of tons of coal produced per man employed in 1891 was 573, and the average tonnage per man per day was 2.57. In 1899 713.3 tons of coal were mined for each man employed, and the average tonnage per man per day was 3.05 In arriving at these averages the number of men employed include all those employed in and about the mines. If the miners only were included, a greater difference would be shown between the two years, as the employment of mining machine

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Turn-of-the-Century Coal Mining Machinery Productivity The average number of tons of coal produced per man employed in 1891 was 573, and the average tonnage per man per day was 2.57. In 1899 713.3 tons of coal were mined for each man employed, and the average tonnage per man per day was 3.05 In arriving at these averages the number of men employed include all those employed in and about the mines. If the miners only were included, a greater difference would be shown between the two years, as the employment of mining machine