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Scientific American, Vol. 31, No. 4 (1874) (1874)

leaf 9

An illustration from Scientific American, Vol. 31, No. 4 (1874), 1874, leaf 9
ly been successfully tested at the working to nearly 6,000 actual, horse power, and eight boil- oO main office of the Western Union Company in this city. ers, and developed great speed, making the passage over in New Method of Detecting Mercury, The new invention is a process of multiple… … pertaining to practical telegraphy than any not in the saliva, notwithstanding that one man now living. We hope that these salivation had taken place) after the in- expectations will be fully realized. The ad- ternal administration of corrosive s ub- vances thus far made in the practical uses…

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