New Orleans daily crescent. [volume] ([New Orleans, La.]) 1851-1866, 1857-08-28
Particulars Of Foreign News.
PER STEAMSHIP ARABIA.

ng intelligence from her mails:
Great Britain.
In the House Of Lords, on Thursday, Lord Camp
'e presented petition from the Queen md princes
of Dude, residing in England, expressing great re-
get at the revolt in India and the suspicion attached
to the exking The petitioners stated that they had
received assurances from the King that he was en-
tirely innocent Of all completely in the outbreak and
they prayed that the charges against him might be
made known, so that he might establish his inno-
cence. {
Objections were raised to the reception of the nett
tion merely technical grounds, and it was with
drawn.
The bill authorizing the embodiment Of the militia
was read second time after brief debate, in the
course Of which Lord Panmure and the Duke Of
Cambridge stated that efforts should be made to in
duce the requisite number Of ilitiamen to volunteer
for the regular army.
1t is stated that Mr.. Murray, the English Minister
arrived at Teheran the 7th Of June, and was re.
ceived with the honors agreed upon .H
...- India. ..
There is nothing later from India, but the papers
continue to publish details Of the atrocities com.
mtted by the insurgents, furnished from private
The Atlantic Telegraph.
On Thursday morning at daybreak the Agamem-
distance Of about a third of mile from the United
States frigate Niagara. Before end of each
cable carried to the opposite ship, and joined
up as to form continuous length OF 2500 miles, both
end then connected with the apparatus for trans
mitting the electric current and on a sensitive gal |
vanometer being attached to the other end the whole
cable was tested from end to end, and found to be
perfect.
As these operations had worn far into the night |
the arrangements for attaching the recording instru
ments to indicate signals left to be completed in
the morning. The amount of electric power deyel- |
oped at the further end, and exhibited BY Mr.. White
houses magneto-electrometer, amounted to an at
tractve force of 25 grains. As three grains are a
sufficient force to record ineligible signals upon the
receiving apparatus, it will be perceived that con-
siderable surplus of electric power remains,
vincing proof il any were needed, at once of the
perfect integrity of the cable, and no less of the
ful adaptation of scientific means to the desired
object
On resuming the operations on Friday morning it
was found that all communication was cut of, and
after undermining the portions of cable laid out be-
tween the two ships, it ascertaned that had
been completely severed by ENHANCEMENT with the
moorng chains during the time the Agamemnon was
swinging with the tide, and that the other portion
was so injured from the same cause as to be unfit for
use.
During Friday the officers of the company were
engaged in releasing the broken wires and recon
Meeting the conductors.
| On re-establishing communication between ship
and ship, the transmission of electric telegraph
sages through the entire length of $500 miles
Immediately commenced, and proceeded satisfactorily
| during the whole of Saturday.
! In carrying this out, each terminal station end
of the cable separated connected with the earth
usual in lines laid out in actual length; and the
electrician noted that considerable interval of time
| elapsed during the passage of the current, the
amount of retardatiOn being equal to near second
and three-quarters upon each electrical wave or sig
nal. Yet Notwithstanding this, it was found that
three signals could be practically and intelligiby
transmitted in two seconds. This confirms the accu
racy of the previous experiments made upon shorter
circuits of wire by which it had been demonstrated
that several waves of electric force can cOeXis in
h N 10 nuth Of ipsn tod
dueting wire and yet reach their terminal destination
with sufficient intervals between them to record in
tellgbly the indications they intended to convey
The battery employed by Mr.. Whitehouse consists
of voltac series of forty cells the plates of which
are formed alternately Of zinc and patinized silver
each about nine inches square, The exciting fluid
or medium is simply diluted sulphuric acid, the
troughs containing which are swung upon q GIN
balled Frame to prevent the fluid from being washed
the connections between cell and cell by the mo-
ton of the ship.
The force developed by this battery in its direct
action is so great that piece of iron three inches
long and threeeighths of an inch in diameter can be
entirely consumed in few minutes by the heat de.
veloped on retaining the two poles of the battery
simultaneously in contact with it.
The battery current thus generated is however, only
the primary agent in the act of teegraphing through
the cable, and is solely used as means of inducing
through the ain of electromagnetic electricity, a
current of suitable character for being transmitted
| through such long distances The electromagnetic
electricity actually employed is obtained from large
induction coils, which constructed in the follow
ing manner: Around hollow cylinder Of soft iron
nearly five feet long, is wound with great regularity
d length of several thousand yards of thin copper
wire, insulated with silk wrapped by means of ma
chinery round every portion of the metal, and much
less in diameter than the conductor constituting the
centre of the cable, to the end Of which it is joced
up and OF which it forms continuous part wheI
required for use.
Each layer of this insulated wire is covered witt
thin waxed paper previously to the application of the
succeeding layer, and the whole when completed, il
surrounded with sheet gutta percha applied so as tt
fit it equally all sides. Over the intervening quits
percha is then wound shorter length of copper wir
many times larger in diameter than the prevou
length of thin wire. but insulated in similar manner
The extremity of this latter wire is brought int
connection with the battery by means of key use
by the operator for the transmission of signals il
such manner that not only can the circuit be mad
and broken at pleasure, but that in signaling dis
tant station by the simple process of raising AM
depressing the handle of this key the operator
sends two currents successfully from the same pole o
the battery, but transmits alternately negative ant
| positive electricity. The following phenomena ar
developed in the apparatus thus described when Sc
> in motion. The currents generated in the yoltai
series pass simply through the wire between pole AM
pole of the battery, and in their passage temporary
convert the hollow cylinder Of iron into powerful
electro.magnet, the position of the poles OF whicl
may be reversed with each alteration in the drectio
of the current through the thick wire.
The electro.magnet thus formed, reacts upon tn
great length OF the wire wound ROUND lne CylnQe
inducing in it current of electromagnetic electrcit
possessed of energy adequate to the length Of cable
is required to pass through
: 1t will be seen that the nature of this secondar
current may be varied at will by the employment
{ batteries differing i'll character las may be foun
most suited to the occasiOn) attached to the thickt
or primary wire OF the coil and that further as til
current which passes into the cable is originally gen
rated in wire of only one seventh the area OF til
u main conductor, no i'll effect occur to the condu
tor which might result if the battery itself were
IL | direct connection with it.
t Provisions having been made in this manner for II
through transmission of the electric current, I'll
adaptation OF au Instrument suitable to the lndcatiO
e or recording of signals is simply matter of mecha
h cal ingenuity and any Of the sensitive indicating
e. recording Instruments now in use may be employe
n. for the purpose.
of The form of instrument at present used for d
ID velopng signals by the Atlantic Telegraph Compm
8 is modification OF the well known marking instr
IS, ment invented by Professor Morse.
Interesting from Spain.
Correspondence of the London Times.l
ne PARIS, August 4th, P. NJ.
is mentioned few days ago that the question
e, long in debate between Mexico and Spain would
ed discussed in Paris between the Representatives of
ut mediatiug Powers and those two Governments.
IN was originally intended that the seat of the deba
n; should be London, but the French Government ma
Ill tested so Great desire in favor of their own rani