The American Electro Magnetic Telegraph: With the Reports of Congress, and a Description of All Telegraphs Known, Employing Electricity or GalvanismVail, Alfred
History
The American Electro Magnetic Telegraph: With the Reports of Congress, and a Description of All Telegraphs Known, Employing Electricity or Galvanism
Vail, Alfred
Telegraph -- History
[21]“In 1828, M. Victor Triboaillet de Saint Amand proposed to
establish a correspondence from Paris to Brussels, by placing along
the highway, and at some feet deep, a metallic wire, about a line or a
line and a half diameter. He recommended to cover the wire with shellac,
upon which was to be wound silk, very dry, which should be covered in
their turn with a coating of resin. The whole was then to be put into
glass tubes carefully luted up with a resinous substance and secured
by a last envelope in the earth, then varnished over and hermetically
sealed. Then, by means of a powerful battery, he would communicate the
electricity to the conducting wire, which would transmit the current
to the opposite point to an electroscope, destined to render sensible
the slightest influence, and left to each one to adopt at pleasure the
number of motions to express the words or letters which they might
need.”
[21] Report of Academy of Industry, Paris.
_Fechner’s Suggestion._[22]
“Fechner, in his manual of galvanism, (Voss, 1829, page 269,) remarked,
that the electro magnetic effects of the galvanic current would be far
more appropriate for the giving of signs than Soemmering’s plan by the
decomposition of water.”
He suggested that wires, having twenty-four multiplicators should be
extended between Leipsic and Dresden, and there connected, alternately,
with a galvanic column, for telegraphic purposes. Indeed, he ventured
to prophecy, that probably hereafter such a connection between the
central point of a kingdom, and different provinces might be arranged
as there was existing in animal bodies, between the central point of
organic structure of particular members and nerves.
[22] Polytechnic Central Journal, 1838.
_Magneto Electricity._
We come now to give an account of a new branch in the science of
electricity, viz. _magneto electricity_; which Dr. Faraday was the
first to discover in the year 1831. As this species of electricity has
been applied to several of the plans of electric telegraphs, which we
shall describe, it is desirable that some account should be given of
its discovery, and of the instrument by which it is generated.
The following is an extract from “Daniell’s Introduction to Chemical
Philosophy” 2d edition, London, 1843.
Public-domain text, read in full here on John Shaqi.
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