, 1873-07-02


- ~-.- -
nao'.a1..s " n1t .mo .ntest A.lan.lo , sAs
rre.omt r Tn.i1s. r. I"s' "''''so'"'"'' ""o
From thu London TfYnts, Juns II.
Tho Groat Eastorn etoa1nslip has onco moro
started upon another Of those missions for
,1,,,a,, a,,o f - s,.s,,o1 anJ ,r,;o,,
she has aircady go ably fulfilled upon three oc-
casiona. In company with tho dinburgh nnd
Tho 11ihorn,a. Hha ia now on hor yay to Inv
fonrth torcgronh col,1o ocroys tho bed Of tho 1t
lantic, tic squadron having loft tho Portland
Noa1s for Valontia at 10 o'clock OIL Sunday
morning. Although this is 1sotninally tho
forrth cob1o. 1t ia ren]1y tho fifth TINT has
hnan ,oid ~ ,no Rnruo couyao-.tho }}ret
,ooa ' ,a:1 L.. H. A..,. 49,,
having poon laid ny w. Inc -, ,Agamomnon anu
tho Niagara in 1853. Ihia cable, how"
over. worked only for fow wecks aud thon
fo,,el to trnu61nlt eirnala elnco which aiu,o 1t
tAs uuo" io.s W 'ee.. " .no ~ y. 'no oso"
and its existence practically iBnorod. In 1865,
the first attempt was made by tho Grcat Eastern
to lay an Atlantic cablo, which, howoyor, waa for
v s." 49,, wv sn, .sev - 1,v.o ~,
1athoms OF water. ana, aithough Brappled for,
md throo timcs hooked, 1t was not thon reoov-
orod, owing to tho grappling goar giving way
under tho sovcro strain. fu tic following yoar
broken cablo Of 1865 wns recovered snl conn
pleted. The year 1860 Witnessed tho laying of tho
third or tho Fronch Atlantic cable from Drest to
g. Perre te present forming tho 10
which tho layipg Of 1t has been iutrllBtod con-
BiaB of tho Great Eastern, Capt Halpin, who Is
III charge Of the expedition; the Htbornia, 1000
tons, Capt. Cato the Edinburgh, 1900 tons,
Capt, Manning, and tho Robert Lowe, 700 tons,
Capt. 1i,!n,nrah. The last tlireo yessels aro all
ecrew steamships, tho Groat Eastorn having
both paddles and scrows. Tho electrical staff Ia
in Charge Of a[r. Lowis, Capt. Halpins chfof as
Laudon, wl,ilo Dr. W. Allchin is physician in
charge Of tho expedition for second time. Tho
task Of organizing and arranging the expcdi-
tiou has doyolyed upon Admiral sl,orard Os-
bis Object.
Wien tho project Of fourth Atlantic cablo
wns started, 1t WINS proposed to lay it from
porthcusno, on tho Cornish coast, direct to Hal
ifax, und thence to New York. In consequence,
however, Of tho a1nalga.nation Of tho Atlantic
Telegraph Company and tho Sooioto du Cable
Transntlantiquc Francais and 1t being desira-
bio, moreover, TO roduco tho risk incidont to
auh,narilla 1inoa by laying tho cable In ahortor
enue points o. tho previous cables, viz: valen-
tia aud noart's Contcnt, Newfoundland. Tho
course will bo to tho north OF tho 1865 cablo,
which tho now cable will not approach neaaer
than thirty miles, except at tho shore ends
connected by a land lino. and a part OF tLe worl,
Of the present expedition is to lay double limo
Of cable from tho latter plaeo to Sydney, Capo
Breton. Threo difreront >tSpoa Of cablo arc to bo
ueed, oach Of which ombodlos foaturos diatinct
from the others, and which hare boon suggested
BIZ previous experience. ThoBo typos, known as
4, 3. and G, aro tho shore ends, the 1ntermedi-
ale cablos, and tho dcop-saa cnble. Tho shore
moating my contingency that might arise from
coaBti11g navigation, aud extending from three
to Ave ni1cs out, according to circumstances:
Tho intermediate cables arc OF lighter and
from the shore ends for distances of from 160 TO
$50 miles, when ttloy aro Joined BY tho deop sea
cubic, which Is Of still lighter design.
AZ aoon as tho shore end hne boon laid 1t will
bo brought direct into tho tcst-room at Yalontia
ond connected with Instruments A series Of
tosta will bo continuously made to determine
tho resistance, insulation continuity, md con-
ductivity Of tho cnblo. A codo Of signals will
bo maintained betwoon tho shore md tho ship.
Tho positive OF negative currents from thoshoro
will produce in tho ships insulation galvanomo-
ter doaoctions oithor to tho right or left, which
codo cod tic ioft, or W Negative, boing equivalent to
Continuity NTH t tests rom tho shoro viii bo applied
every five minutes during tho time Of laying.
Once every day the ship will signal to the shore
aud tho Insulation resistance per mile.
Tho cable is distributed betwcen tho Great
Eastern, tho Hibornia. aud tho Edinburgh, tho
Robert Lowe carrying tho Bhoro ouds and tic
electrical stores. Tic Groat Eastern has On
board about GOO mi}os Of cablo for tho At]antio
line, tic Hibernia 400 miles, tho Edinburgh 3o5
mileH, for tho placontia lines. Tho Hibornia
Thore is Of courso, an ovcsplus Of cable, but in
calculating the length required, tho repairs to
tho 1865 cablo had to bo taken into account.
There arc on board tho thrco ships $4,000
fathoms Of smaller tackle, and hftoon miles Of
coir buoy rope. 80 that they arc we'll equipped
in this respect. When the Robert Lowe has laid
tito ahoro oud at Valontia, sho will roturn to tho
Thames md ship tho four shore ends for the two
placcntia cables, to which place she will proceed,
and Join or await the otior vessels. On leaving
Vn]entia, tho Groat Enstern, accompanied by tho
Hibcrnia and tho Edinburgh, will proceed to Law