Professor Wheatstone's Telegraph is operated by tirawing through the sending instrument a strip of paper perforated beforehand with the proper characters of the despatch. The perforations give the connections, and are prepared with an instrument as rapidly as in the usual mode of telegraphing, by any number of assistants, whick the pressure "of business may require, the line being occupied only by the rapid drawing through of the prepared despatches. An instrument by the same inventor, is used by the Emperor of the Trench for secret despatches. The words sent in cypher, of which the sending operator knows nothing, are translated into intelligible print by a proper arrangement of effects in the receiving instrument ; and yet the attendant of the latter is as ignorant as the former, for the printed telegram is reeled off into a locked box, as fast as printed, without allowing a letter to be seen. — Scientific American
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https://paperspast.natlib.govt.nz/newspapers/ST18671113.2.12.2
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Southland Times, Issue 749, 13 November 1867, Page 2
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151Page 2 Advertisements Column 2 Southland Times, Issue 749, 13 November 1867, Page 2
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