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coal and stone productions

2020122ensp enspHewers hacked out the coal from the seams with their picks at the coal face Putters supplied the face workers with empty tubs and then pushed the full ones from the coal face to the wagons for hauling to the shaft As a result of the needs of industry the output of coal between 1830 and 1850 trebled from 15 million tons to 49 million tons 46