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Scientific American, Vol. 44, No. 22 (1881) (1881)

leaf 6

An illustration from Scientific American, Vol. 44, No. 22 (1881), 1881, leaf 6
ermopile connected with a|imported from Africa, India, and other parts of the world, | and provided with a series of transverse or longitudinal receiving telephone. The heat and light thrown by ‘the |sometimes at great expense, a single half pound of a certain | spring slats, upon which blocks… … and strength with the sound waves at the MAGNETIC THERMOPHONE WITH MANOMETRIC FLAME TRANSMITTER, their aroma or other desirable qualities for a transmitter, the magneto-telephone, E, being long time, has been patented by Mr. Henry in the circuit of the thermopile, C, will reproduce any |Tare…

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