. Bulletin. Science. â "^â ^â¢t !â '- I' " Figure 28.âWheatstone's automatic tel- egraph, a, Top view of tape perforator; b, side view of ta pe perforator; c, receiver; d, diagram of the transmitter tape sensor, which controlled the direction of the current in the telegraph line. From W. H. Preece and J. Sivewright, Teleg- raphy, New York, 1876, pp. 117, 119, 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 S
. Bulletin. Science. â "^â ^â¢t !â '- I' " Figure 28.âWheatstone's automatic tel- egraph, a, Top view of tape perforator; b, side view of ta pe perforator; c, receiver; d, diagram of the transmitter tape sensor, which controlled the direction of the current in the telegraph line. From W. H. Preece and J. Sivewright, Teleg- raphy, New York, 1876, pp. 117, 119, 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
