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Scientific American, Vol. 59, No. 8 (1888) (1888)
leaf 3
ward, so that its it is desired first to engage the lower portion of an lower end may be conveniently inserted into the bur- mines in proximity to the furnace plant, some of them ordinary tapering gas burner, where the twists are being washed. Coke is produced now in 156 ovens at the opened or… … of alumina, 9°31 per cent of protoxide of manganese, © 1888 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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