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
But one shower of rain had fallen for the
five preceding weeks. The wires, two miles in length, were supported
upon baked sticks, and the dry ground was used for the return two miles
of the circuit. They found the transmission of the electric fluid to
be instantaneous. Dr. Watson made many other experiments which we must
pass over.
Mr. Ellicott constructed an electrometer for measuring the quantity of
electricity. Mr. Maimbury, at Edinburgh, electrified two myrtle trees,
during the month of October, 1746, when they put forth small branches
and blossoms sooner than other shrubs of the same kind, which had not
been electrified. The same experiment was tried upon seeds, sowed in
garden pots with the same success. Mr. Jallabert, Mr. Boze and the Abbé
Menon principal of the College of Bueil, at Angers, tried the same
experiments upon plants, by electrifying bottles in which they were
growing. He proved that electrified plants always grew faster, and had
finer stems, leaves and flowers than those which were not electrified.
In the year 1748, Dr. Franklin, and his friends, held an _electrical
feast_[17] on the banks of the Schuylkill near Philadelphia, and as the
account is amusing, as well as scientific, we will give an account of
it as related by Franklin, in a letter to his friend Collinson, dated
Philadelphia, 1748. (1 vol. of Franklin’s Works, p. 202.)
“Chagrined a little that we have been hitherto able to produce nothing
in this way of use to mankind; and the hot weather coming on, when
electrical experiments are not so agreeable, it is proposed to put
an end to them for this season, somewhat humorously, in a party of
pleasure, on the banks of the _Skuykil_.”
“Spirits, at the same time, are to be fired by a spark sent from side
to side through the river, without any other conductor than the water,
an experiment which we some time since performed, to the amazement
of many. A turkey is to be killed for our dinner by the _electrical
shock_, and roasted by the _electrical jack_, before a fire kindled
by the _electrified bottle_: when the healths of all the famous
electricians of England, Holland, France, and Germany are to be drank
in _electrified bumpers_,[18] under a discharge of guns from the
_electrical battery_.”
Public-domain text, read in full here on John Shaqi.
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