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Scientific American, Vol. 50, No. 12 (1884) (1884)

leaf 4

An illustration from Scientific American, Vol. 50, No. 12 (1884), 1884, leaf 4
has been employed by the post- the front board and ‘the diaphragm. The upper opening of closes the jar sufficiently tight for ordinary purposes; but, masters of Horsham and Saxmundham with great success, having been used by the letter carriers and telegraph mes- the block coincides with the central… … HUSTON’S ACOUSTIC TELEPHONE. ploys 5,000 persons, who receive 50 cents per day for 12 hours’ work. The matron at each table gets her pay from the wo- cover melted wax,which will spread over the cover, run into men she commands, wires, « 6, at the top and bottom, which hold the lower end the…

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