The Sun.
London, England, 1857-01-15 00:00:00

1...Ju1y 31— 6 p m
2... 9 p m
' 3... Aug. 1— 130 a m
4... 6 am
5... 10 a m
6... 3 pm.
7... Sept. 23 8 p in
8... meridian
9... 6 a m
10... Sept. 27 1 p m
11... 2 a m
12... Sept. 26 2 p m
13..„A.ug. 6- meridian,
14 ..Aug. 8= 5 pm'
15... 9-11 am
16...-- 10-3 am
17.,. 10-10 p m
18... 11— 3 p m
19... 12— 6 a m
20... 13— 8 a m
21... 14-1 am

From Newfoundland 3tO Ire
land.

From Ireland to Newfound.

land.

A ' •

From Newfoundland to Ire.

14— meridian
15— 8 am
16— 9 a m
17— 6 am
17— 8 pm
18— 2 pm
19— p m

land.

!.., t

- 20- 5
- 20- 520

31... Sept. 13— 9 45
32... Aug. 21— 1 35
33... 21— 9

From Ireland to N'foundland

From N'foundland to Ireland.

- 22- 5

THE ATLANTIC SUBMARINE CABLE.

A specimen of the cable which is to be sunk in the
Atlantic was brought over in the Baltic by Cyrus W.
Field, and now lies before us (the New York Times). It
is three-fourths of an inch in diameter. In the csntre
are seven small copper wires, twisted upon themselves,
and the whole insulated by a thick covering of gutta
percha. Eighteen strands of slender iron wire, each
strand composed of seven threads loosely twisted upon
themselves, constitute the outer covering. The weight
of the whole is 18 cwt. to the mile, and its strength is
such that it will bear in water over six miles of its own
length if suspended vertically. Its specific gravity is
such that it is thought that there can be no question
about its sinking readily to the bottom, being much
heavier than the shells brought up by sounding. The
objec! len that the strands of wire forming the outer
covering will suffer corrosion or decomposition, is met
by the statement, based, it is said, on satisfactory
experiments, that in corroding, the material of which
the outer covering consists will enter into chemical
union with the soft mud in which the cable is im•
bedded, and will thus form a concrete mass of cal-
careous or siliceous substance, affording its very best
possible protection. The gutta percha and central copper
wire are thought to be indestructible under water. The
flexibility of the cable is such as to make it almost as
manageable as a small hemp line. Its selection was the
result of months of experiment and trial, hundreds of
specimens having been made comprising every variety of
form and size and structure before this particular one was
agreed upon.

The one which it was attempted to lay some two years
age was an inch and a quarter in diameter, having the
same number of electric wires inside, but having as its
external covering twelve quarter inch wires. It was very
cumbersome compared with this, and much more expen-
sive as that.

Messrs. Kuper, Glass, and Co., of London, have take❑
the contract for the manufacture of the great cable
chosen to connect the two continents. The distance
from St. John's, Newfoundland, to Valencia on the
western coast of Ireland,,the points between which the
telegraphic connection is to be made, is 1,640 nautical
or 1,900 statute miles. But the manufacturers are to
famish 2,600 statute miles of the cable, in order to meet
the demand for extra cable that may arise from the ine-
quality of the depth of the ocean along the plateau over
which the line is to be laid. The cable is to be coin-
pleted by the 30th of next May. Two steamers, each
bearing half the cable, will directly sail from London
for trie middle of the Atlantic, and heading different
ways, paying out as they go.