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Scientific American, Vol. 43, No. 25 (1880) (1880)

leaf 10

An illustration from Scientific American, Vol. 43, No. 25 (1880), 1880, leaf 10
transmitting telephone is ap- and.two yards long for the first year, five yards long for sub- | frozen in a glass vessel which was so hot that it could not be plied to the mouth of a person, the orifice of the receiving sequent years. The end of the strip is laid on the inside of touched by the… … sel and water; therefore, as no real contact takes place, the N., 172 geographical miles nearer the North Pole than heat from the vessel can pass into the water but slowly, viz., Markham reached, and 828 geographical miles from that in the proportion as it- works itself through the layer of the…

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