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Scientific American, Vol. 81, No. 18 (1899) (1899)

leaf 4

An illustration from Scientific American, Vol. 81, No. 18 (1899), 1899, leaf 4
the calcium carbide is con- come into Bogata. Of the cut stones, set and unset, by men who have not had the advantage of any com- there has been an abundance in the market. Hard tained and in which gas is generated. A cap screws on mercial experience. The reports are sold and with few the generator… … selves with emeralds that will not bring the price they conclusion that water itself is blue, and that the fine paid for them. Others, also inexperienced, have more particles which it holds in suspension, while contribut- THE JOSSERAND ACETYLENE-LAMP. or less excellent imitations as souvenirs of…

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