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
To the Hon. F. O. J. SMITH,
_Chairman of the Committee on Commerce
of the House of Representatives._
[13] It is proper that I should here state, that the patent-right is
now jointly owned, in unequal shares, by myself, Prof. Gale of New York
City University, and Messrs. Alfred and George Vail.
No. 9.
_Letter from S. F. B. Morse to Hon. F. O. J. Smith._
WASHINGTON, _February 22, 1838_.
DEAR SIR: I have endeavoured to approach a proper
estimate of the expense attendant on preparing a complete
telegraphic communication for some distance; and taking
into consideration the possibility that the experiment
may be conclusively tried before the close of the present
session of Congress, I have thought that an appropriation
for fifty miles of distance would test the practicability
of the telegraph quite as satisfactorily as one hundred,
because the obstacles necessary to be overcome would not be
more proportionally in fifty than in one hundred; while, at
the same time, the _double circuit_ necessary in the fifty
miles would give a _single circuit_ of one hundred for the
purpose of testing the effect of distance upon the passage
of electricity. Fifty miles would require a less amount
of appropriation, and the experiment could also be sooner
brought to a result.
Two hundred miles of wire, or wire for two circuits for
fifty miles of distance, including the covering of
the wire with cotton, at $100 per mile, $20,000
Other expenses of preparation of the wire, such as
caoutchouc, wax, resin, tar, with reels for winding,
soldering, &c., say $6 per mile, 1,200
Batteries and registers, with type, &c., for two
stations, and materials for experimenting on the
best modes of magnets at long distances, 800
Services of Professor Gale in the chemical department;
services of Mr. Alfred Vail in the mechanical
department; services of assistants in different
departments; my own services in superintending and
directing the whole—total 4,000
——————
Total, [14]$26,000
=======
This estimate is exclusive of expense necessary to lay
down the wire beneath the ground. This is unnecessary until
the previous preparations are found satisfactory.
Public-domain text, read in full here on John Shaqi.
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