Annual report of the State Mineralogist for the year ending ... . rers are paid from 50 cents to 75 cents per shift oftwelve hours; miners earn from 75 cents to $2 per day of ten all the mines and smelters in the Harz are owned by the Gov-ernment, and worked mainly for the benefit of the population. Theprofits are small, and arise chiefly from the smelting of foreign ores. LEAD SMELTING IN ENGLAND. Two processes and furnaces have been evolved in England and intro-duced in modified forms into other countries. The modification of theFlintshire furnace used at Coueron has been descri
Annual report of the State Mineralogist for the year ending ... . rers are paid from 50 cents to 75 cents per shift oftwelve hours; miners earn from 75 cents to $2 per day of ten all the mines and smelters in the Harz are owned by the Gov-ernment, and worked mainly for the benefit of the population. Theprofits are small, and arise chiefly from the smelting of foreign ores. LEAD SMELTING IN ENGLAND. Two processes and furnaces have been evolved in England and intro-duced in modified forms into other countries. The modification of theFlintshire furnace used at Coueron has been described above. Furnaces built on the same plan are frequently used for roasting,where the smelting is done in blast furnaces. THE FLINTSHIRE FURNACE. This furnace is of the reverberatory type. It has the fireplace A atone extremity of the bed C, from which it is separated by the fire bridgeB, while at the opposite end two flues D D communicate with the smoke-stack E. The arched roof is rather low and is perforated near the mid- 836 REPORT OF THE STATE Fig 35~.
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Keywords: ., bookcentury1800, booksubjectgeology, booksubjectminesandmineralr
