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Scientific American, Vol. 63, No. 3 (July 1890) (1890)

leaf 8

An illustration from Scientific American, Vol. 63, No. 3 (July 1890), 1890, leaf 8
ubbles. ing powder, the same quantity of soda ash, and about reproducing apparatus shown in Fig. 2. A liquid foams when its films have a certain durability. twice their bulk of sawdust. Completely saturate In this apparatus the record plate is mounted on a these with caustic soda liquor, say 10 or… … Fig. 2.-BERLINERS GRAMOPHONE-THE REPRODUCER. mice stone, but inks and organic stains cial to good health than wet cellars. may—in the absence of bleaching pow Rheumatism, bronchitis, pneumonia, der—be generally removed by a mixture of chlorate of is covered with a thin film. Now, the most striking…

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