. Bulletin. Science. Sending Receiving Figure 45.—English lineman of the mid-19th century. His hat served both as protection from the elements and as storage space for extra tools. From Post Office Electrical Engineers Journal, April 1913, Vol. 6, opposite p. i. possibility of transmitting the sounds produced by the human voice by means of an electric telephone. Although it was in 1854 that Charles Borseul had suggested a telephone for transmitting the human voice by means of electricity, the term "telephone" was not applied to an actual electrical instrument until Philipp Reis devis


. Bulletin. Science. Sending Receiving Figure 45.—English lineman of the mid-19th century. His hat served both as protection from the elements and as storage space for extra tools. From Post Office Electrical Engineers Journal, April 1913, Vol. 6, opposite p. i. possibility of transmitting the sounds produced by the human voice by means of an electric telephone. Although it was in 1854 that Charles Borseul had suggested a telephone for transmitting the human voice by means of electricity, the term "telephone" was not applied to an actual electrical instrument until Philipp Reis devised his instrument in 1860.*" In 1859, after becoming a teacher of science in a gym- nasium near Frankfurt ain Main, Reis returned to the studies on sound that he had begun previously. By the following year he had completed his telephone, and he exhibited several forms of it during the next four years. (See figs. 54, 55.) Over 50 articles ap- peared on the Reis telephone, and reproductions of it produced by several instrument-makers appeared in many physical laboratories of Europe and Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Smithsonian Institution; United States. Dept. of the Interior; United States National Museum. Washington, Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off


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Keywords: ., bookauthorunitedstatesdepto, bookcentury1900, booksubjectscience