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Scientific American, Vol. 64, No. 10 (1891) (1891)

leaf 10

An illustration from Scientific American, Vol. 64, No. 10 (1891), 1891, leaf 10
cess of acid is neutralized with gutters being arranged on a zigzag line, and the two caustic soda or sodium carbonate solution, and the oil ing, and was a kind of vaseline, since it deposited no series of gutters areoppositely arranged with respect to erystalline matter even at 10 deg.… … moths; a suction fan worked by the elec- the mineral oil industry, remove the very last traces of reagents, and so do those tric current draws them in when they approach the light, and carries them into a small mill, vaseline manufacturers who use chemicals, and do not removed. The material is then…

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