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Scientific American, Vol. 37, No. 19 (1877) (1877)
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ream of molten slag, is used for covering steam proper equivalent of hydrogen and then condensing the gas. boilers, steam pipes, ice houses, and cisterns, as a protection Iron, sulphuric acid, and water, when placed in contact, petroleum which, even at the high rate of 10 cents per gal- | lon,… … the quality of power. One the slag used. © 1877 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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