Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 608
FIG. 5. THE MESSAGE (SEE THE BOTTOM OF THE FIRSTCOLUMN ON THE PRECEDING PAGE) RECEIVED BYCHEMICALLY MADE DOTS AND DASHES ON WHITE PAPERTAPE. IN REALITY THE TAPE IS IN ONE LONG STRIP. This system may be properly called machinetelegraphy, as most of its operations are eitherelectromechanical or… … provement in method or speed that has been putto practical use in this country, with the excep-tion of the quadruplex. It has long been recognized by experts andscientists that a practical system of machine teleg-raphy was necessary to meet the increased de-mand for rapid telegraphy. After many…
Children's literature
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