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Scientific American, Vol. 38, No. 7 (1878) (1878)

leaf 3

An illustration from Scientific American, Vol. 38, No. 7 (1878), 1878, leaf 3
; the noise that accompanies the escape of steam from pany. This fine coke is not estimated in the above saving. the boxes is four times the diameter of the shaft, and they boilers and exhaust pipes in launches, tugs, ferryboats, river The estimated weight of this material is 200 Ibs. per barrel,… … is but a slight production of gold, but silver is largely pro- with the black race, the last being the largest. duced and exported either as metal or ores. Coinage is un- Again, in the white race the molars have usually four limited and gratis, the mint receiving bullion and returning cusps; in the…

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