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Scientific American, Vol. 38, No. 13 (1878) (1878)

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An illustration from Scientific American, Vol. 38, No. 13 (1878), 1878, leaf 0
forty-eight Apparatus. hours in a hot satu- Experiments with rated solution of a new telegraph alum, and_ then apparatus have late- brushed over sev- ly been made at eral times with a \ Vienna, by means logwood decoction of which some one prepared as fol- hundred or one hun- — ae lows: dred and… … crowned with com- some imitation of plete success. ebony.

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