The Conservative. (M'connelsville, Ohio) 1866-1871, 1868-11-12
The New Atlantic ClbIe- Progress OF
thp W,vk.

tfrOin the London Times, Oct 18I
Tho manufacture of the new Atlantic tel.
egraph, which is to be submerged between
Brest and n suitable terminus on the shores
OF the st0e Of New York, Ia progressing
satisfactorily. The new cable il almost
identical IN construction with those which
were completed In 1866, the only difference
being that the diameter of the conducting
copper wire is slightly greater, and tho
outside wires are of homogeneous Bessiner
Steel, galvanized, having a breaking strain
OF about 1000 pounds, while the wires out
side the existing Atlantic lines have a
breaking strain of only about 800 pounds.
The new cable will be laid IN two lengths.
one from Brest to st. Pierre.iu deep sea,
Of 325 miles, not including slack, aud the
other from St Pierre 10 the terminus. of
~ miles in length, not including slack
The latter section will be similar TO the
Persian Gulf cable, as it will have to be
laid In comparatively shallow water. aud its
exterior wires will be protected with Bright
and Clark's patent siliceous compound.
Which consists principally ofpowdered flint
and pitch. The construction Of the shore
ends will be similar 10 that Of the e~Hiatine
Atlantic lines, and will gradually become
thinner until they assume the deep sea di-
mensions. During the summer her mnj.
estys ship GaHnet took soundings aloug
tho proposed route, and from the result Of
the operations 1t Ia understood that the
bottom Of the ocean Ia neatly the same in
cha1ncter rs the bed in which the existing
cables are laid, and Of about the same
depth. Little but mud aud ooze were found
along the route. In order 10 avoid the dan.
gers of injury from rocks and iceberps. the
new will be laid TO the south OF the pree-
cnt cables, below the southern odqe of the
Great Bank, so that IL may be laid in deep
water. Sir James Anderson. who will com.
mand the Great Eastern during the expe-
diton organized for tho suhmergenoe of
the line, has made the following observa-
tons regarding the Newfoundland banks:
by keeping in the 500 iathom line upon
the Milne bank, and around the southern
edge OF the Grand bank, there IL no posi-
bihty OF ice or any other agency that ran
be suggested i%njuring the cable. The
northern edge OF the Grand bank was
avoided because It Is uncertain al what
depth tho ioohergs ground, They nre said.
on good authority, to ground 81 times at
90 hthoms. II " not certain nj what
depth tho vessels employed in the seal
trade maysometimes choose TO drop an nm
Choir for the purpose Of keeping in the
track of ice foes. These dangers are
avoided by the track chosen for the mo.
posed cables, and ] am Justified by my
own experience in saying that tho truck
from the southern edge Of the Grand
bank to st. Pierre, and thence 10 the
place Of landing In America. IL entirely free
nom any danger from ice, and does not
cross any anchorage resorted to by the
feet Of fishing vessels" The breaking
strain Of the new steel cable will be *
tons, and the strain required for submer-
sion need not be more thar IA cwt. Even
If OF any time IL be necessary In haul up
any portion Of II already laid, tho strain
need not exceed q ton and o half in the
deepest water. The weight Of copper
forming the conductor Of the existing At
lantic cable is 800 pounds per knot. I'M the
new cable it will be about 400 pounds.
The Great Eastern has arrived at sheer
ness, whence she will proceed with the
cable probably in the end of nezt June.