The Sun.
London, England, 1856-10-09 00:00:00

TELEGRAPHIC EXPERIMENTS.

The following letter, describing some experi-
ments connected with the projected telegraphic
communication between New York and London,
via Newfoundland, has been handed to us for pub-
lication :

" London, Oct. 3, Five o'clock, a.m.
"My dear Sir,—As the electrician of the New York,
Newfoundland, and London Telegraph Company, it is
with the highest gratification that I have to apprise you
of the result of our experiments of this morning upon a
single continuous conductor of more than 2,000 miles in
extent, a distance you will perceive sufficient to cross the
Atlantic Ocean, from Newfoundland to Ireland.
"The admirable arrangements made at the Magnetic
Telegraph-office in Old Broad-street, for connecting ten
subterranean gutta percha insulated conductors, of over
200 miles each, so as to give one continuous length of
more than 2,000 miles during the hours of the night,
when the telegraph is not commercially employed, fur-
nished us the means of conclusively settling by actual ex-
periment the question of the practicability as well as
the practicality of telegraphing through our proposed
Atlantic cable.

" This result had bee❑ thrown into some doubt by the
disc very, more than two years since, of certain pheno-
mena upon subterranean and submarine conductors, and
had attracted the attention of electricians—particularly
of that most eminent philosopher Professor Faraday,
and that clear-sighted investigator of electrical pheno-
mena Dr. Whitehouse—and one of these phenomena, to
wit, the perceptible retardation of the electric current,
threatened to perplex our operations and required careful
investigation before we could pronounce with certainty
the commercial practicability of the Ocean Telegraph.
" I am most happy to inform you that, as a crowning
result of a long series of experimental investigation and
inductive reasoning upon this subject, the experiments
under the direction of Dr. Whitehouse and Mr. Bright,
which I witnessed this morning, in which the induction
coils and receiving magnets, as modified by these gentle-
men, were made to actuate one of my recording instru-
ments, have most satisfactorily resolved all doubts of the
practicability as well as practicality of operating the
telegraph from Newfoundland to Ireland.
" Although we telegraphed signals at the rate of
210'241, and according to the count of one time even of
270 per minute upon my telegraph register (which speed
you will perceive is at a rate commercially advantage.
ous), these results were accomplished, notwithstanding
many disadvantage) in our arrangements, of a tempo•
rary and local character—disadvantages which will not
occur in the use of our submarine cable.

" Having passed the whole night with my active and
agreeable collaborators, Dr. Whitehouse and Mr. Bright,
without sleep, you will excuse the hurried and brief cha-
racter of this note, which I could not refrain from send-
ing you, since our experiments this morning settle the
scientific and commercial points of our enterprise satis-
factorily.
" With respect and esteem, your obedient servant,
(Signed) "SAIL. F. B. MORSE.
" To Cyrus W. Field, Esq., Vice-President of the
New York, Newfoundland, and London Tele-
graph Company, 37, Jerinyn-street, St. James-
street."