The Cadiz sentinel. [volume] (Cadiz, Ohio) 1864-1911, 1868-11-11
TnE NEW ATLANTIC CABLE
Progress of the WOrk-Tbe Mas
ufaciure of the New Gable
The Recent Sounding Along
the PropOsed Route.

The Recent sounding Along
the Proposed Route.
From the London Tines, October H.
The manufacture of the new Atlantic
telegraph. which Is To be sui me' gej b
tween Brest and suiisbi' terminus on th'
shures cI tie State of New York, is pro-
crossing satisfactorily. The new caGle Is
almost identicalm construction with those
which were completed in 1866, the ouly d.;
ference being that the diameter Of the colt
duc,ing copper core slightly greater, and
the outside wires are of homogeneous Be-s-
emer steel. galvanized, having a breaking
strain of about LOCO pounds. while the
wires outside the existing Atlantic hines
have breaking strain of only abnnt 500
pounds. The new cable will he laid in two
lengths-one iram Brest TO 81 Pi,rre, IN
deep sea, of 1925 miles, not including
slack, and the other from st. Pierre to the
terminus, OF I'D miles in length, not In
cluding lack. The latter section will he
similar to the Persian Gull cable, as 4 vii
have to he laid in comparatively NhaI"w
| water. and its exterior wires. will Ice pio-
! tec.ed with Bright aud Blark's patent silic-
| inus compound wtich consists principally
of powdered flint and pitch. Tn con-
struc:ion of the shore eads will he Slinlar
TO that of the existing Atlantic llnrs.' and
will gra.lualy become thinner uutll they as
sume tbs deep SEA dimensions.
| During the summer, hfr mlJe>tv "hip
I Gannet took sounlingS along tue prHp"s-
ed route, and from the r"-ult OF th' opera
tons it is understood that the bottom "f
the ocean is nearly the same in character a.
| the bed in which the existing cables arr
laid, and Of about the same depth Lttl"
| nln h.
ronte, In order to avoid the dangers nf IN
inry from rocks and icebergs the new WI
he laid to the south of the present cables,
below the southern edge Of lh Great
Rank. so that it may he laid i" deep wa'er
Sir James Andersen. who w,h command
the Great Eastern during the Exp dit on
orran;zad ftr the submergp1c. Of the ne
has male the following observations re-
pardinp the N, winunAlani hanes: by
kpepinr in the 500 tathom line upon he
Milne bank, and around the southern edge
of the Grand bank, there is no possibility
of ice or any other agency that can be sug-
pested iniuring the cable. The northern
edge of the Grand bank was avoided be-
cause It is uncertain at what depth the lce>
bergs ground They are said, upon good
authority. to ground at times IN 90 faith
ons.
It is net certain at what depth the ves>
sells employed ir the sea trade may, some
times choose tn drop an anchor tor the pur-
pose Of Keeping in the track OIL ice Hoes,
These dangers are avoided by the track
chosen for the proposed cables, and am
justified by my own experience III saying
that the track from the southern edge OF
the Grand Bank to st. Pierre, and thence
to the place Of landing in America, Is ell
tirely free from any danger from ice, and
does not cross any anchorage resorted to by
the fleet of fishing vessels.
The breaking strain of the new steel cable
will be u tons, and the strain required Tor
subj. ersion need not be more than 4 cwt.
Even at any time it be necessary to haul up
any portion of 1t already laid, the strain
need not exceed a ton and half IN the
deepest water. The weight OF COPPER
forming the conductor of the existing At
lantic cables is 800 pounds per knot; IN the
new cable II will be about 440 pounds
The Great Eastern has arrived 1T Sheer
ness whence she will proceed with the ca,
. bic probably in the end Of next June. Al
, ter leaving the Midway, she will go tc
Brest to finish coaling, and will thence
start on the telegraphic expedition.