The sun. [volume] (New York [N.Y.]) 1833-1916, 1865-06-13

connection. This ended the WORK done At Tie
factory, and the cable was ready for shipment.
As tank after tank was gradually filled Us
contents were conveyed 10 one or the other OF
two hue hulks named The Ire aud the Arne'hyst
whose decks had t,eu cat away where necessary,
for ho purpose 4 receiving on board esch hulk
two iankA SIMILAR ~ those Of the factory. In
Nos', tie cab" was c0ed away, aud whenever
the tanks wero full the hunks with their fresh
towod ~ the. side - me Great Eastern, which
vas lying in lho M.dway. sine such trips we're
male by these hulks e'lrc the cable was all con-
yeyed to the Grso, Eas',rn.. On bosrl tie "b.s
ship" are three hugo tanks, capable o. containing
Tic whole Of Tho cable BIi ~ vast arc the proper
uous - tho Great Eist'rr ihni tho enormous ca.
pscitv Of the tanks in question IA scarcely realized
Lotto them, once more Ne csuic was C.ol, iout by
foot, rod boy rod, nile by mile, with the utm' 8
caution, such A. has cbaracIerze the whole iro-
cess n construction fr1ra the .c-y beginning.
Tho London IELrGr,rn. u MAJ %, has thu fol-
lowing Interesting account % the rrcpnra...ts On
board the Great Eastern for sying the ocean ,oic.
graph cable;
A visit was rad 10 ne G'est r. stern few DAYS
since y large party Of the u rector4' ircnt,
aui IL msy he s.i that all who undcrstood tie
preparations which they saw, came away with
greatly siren ythenct r0DA 'ence In the future "
the new cable Since ISIS. when The FIRST AfArtc
cable was laid, the advance that as been uAic ~
the scientific world toward comp-eAcucug cc.-
uical phenomcna IL very treat Il has teon IN. .,,
ty man VOL qIa fed 10 spenk the subject
that electric scieucr has passed. since tfnt time,
from 's childhood r. ~ maturity. e far ~ the
phenomena connected with long electric circuits
were couserno6, we had N iS5. no knowledge
whsiev 7. The instrlment In common use were
unsuit'd 10 receiving signsls through great
length q cable; tue necessity Of proydug Tor
tho conductor an insulation 40 perfect as 90
nppfo'ch an absolute condition wss in
adequately spprecinted. The best pre'ni-
mary test for long cable bad been dew scd AMI
The I'd Atlantic Tol graph Was laid without hAv-
irg ieen subjected 10 aug scAicLn tost On shore.
Everybody had adv.ce g. give concerning the
man sgerncnt Of thr wire, but no one recommend
ed the precautions which subsequent experience
as shown b. be nc es.ary When tie signals
teglu to fAl, The battery power was Augmented,
anu e'ec.rO-nasueilg iul uctiun coils which fApd-
~ helped on the destruction q the conductor,
were put in circuit NJ one thought u "nursing"
the cAhl, oil humorus its feeble attempts at ar
uoulato uttersnCe, and Of finding out what 70 SAID
rather by listening alutely thAu b. constantly
calling on II, "a tie language ~ Victoria gallery,
30 - eak up" The OLD cable, however, - Dead
Aui gone part Of II has been picked up AID aI-
piled TO ignObie uses, as race horse past his work
may 10 nut Iuto the shaits Of a lilnsom part Of
u ~ ue, "A abandoned. and lies where IL may rest
sill the END OF time, IN the Ozark unf.thumel
caves" u the deep sea Let us turn to tie pralt-
cal present. The Great Eastern looks Just now
mere Ike an ougin a,r's "ursslop than q eR{1.ng
ship. The vast eNpanses Of her d"uk are covered
with wooded shc.s and piles OF timber. there arc
smiths FORCES fellow, sud between decks you m. ht
fancy yourself In Tachin SIS factory. The great
engines Of tho ship, II Is true have lost tie bright
LOOK vi maCb ntrt which is IN constant use AMI
the large dull masses Of iron seem asleep or In
trance. II sou descend the ladder when leaf to
tie boilers and iuruAces-An expedition which %
more Ike going down mine than sn- oIher to
which it can be cotupaged-you md yourself in
tie midst OF dark solitude aud cold; tut IN
those regions Of the weasel where the cable Ia being
shipped mud watched, there is every Sign a keen,
v Z ant In diligence. When you understand what
Is ieing done, you see something more tuan this
that scieuuc foresight of ILe yh ~ order directs
every step aud that tho thick larry rope, coarse
aud rousn 20 appearance, which lies colled away
under Ater In tne tanks OF the ship, is manufl,.
tured, scanned and tested with As much care as
the incest optical instrument IN AL Astronomers
observatory, or tie most delicate APPARATUS Of
irag glass ever Applsd 70 the careful experiments
OF chemistry
/. seems impossible that there eau he any fault
in tle Atlantic cable whom the Great Easttr IA Coz 4
~ sea To say nothing Of tho tests applied to Il as
the uisctor!, II II tested MOI alone alter 1t has
becn taken on board, but duriug It's Del very into
tie ship. As soon as length has been brought
Alun side, one end Is connected with the coils al
ready on board, aud the o.ber end with VI i4stru-
mentG In the testing room. Tho c.rCuIt is Ihus
made through the WnOlc extent OF kno COLI the
portion on board and the portion alousido. The
process Of hauling in then commelces, aud Ihe ln-
sulaton is continuously observed. Tho inHtru-
meuts in the testing room record tho sunglles dew
.,iun from absolutely perfect insulation. It will lo
Understood Mat al insulation which shall uc ute
uerteCL rs an electrician understands the word, 3
| not attainAhle. A piece Of metal separated ty
means Of the purcst glass and enclosed n she dr.
atmosphere thst can uc obtained, will II charged
with electricity, lose that electricity after q tine,
! Ia spesking Of insulation We must therefore q
uadorstood ~ mean sn approximate cunllIlou
but tie approximation IA the case O. tie
new Atlantic cable comes 50 near g. perfection,
that this rough tRiry rope IL a scicuLc wonder.
| TIE last dying pulrAtun oi the old Atlantic cable
WAS forced through It 10y means OF salyau.c bat
| terry consisting Ci two hundred and forty cells
| The submarine Telegraph from London ~ Amster.
| dAm % haultuzlly worked with battery of t.ty
| cells and such battery is comu only uAed for The
| otter submarine lines Of Europe : mails have
| teen Tepestedly sent through NOSE tAau thirteen
hundred miles vi thc cable now On board the Great
| Eastern 10y means OF one cell. Ga.NatiC current,
90 feeble that tLey could not have teeu iet lbs the
| hani, and m.su. have b en- passed harLulctAly
through u Cir>uk Completed - the operator
tongue, can be use W convey messages along
luus N 81 - le AZ would Nci. nearly roach rOtr
L.luion 10 81. Pes rauurg. over needle natrl
| mruIA such as Ause IN Ordinur' us5 io
| lAud teleSraphA, Curlcnt from one cpi Woul
| 10 pow or ess. 10 roeoru sucu iai4s pUs4paui
| Of electricity, II IS prtcsaaTy to use f.O
iesHur Il uu vSJa's mirror sul' -uOL ct'r, iai
e,atiiGl .us'iuui-ut consists of u..rrgr A,out t
SIZE OF iourpcuuy p'"-e made OF u.clo4. .p,
glass, amt s1 tnln 4. ~ ~ we as only ,-tu. y.
he ta,E of tbs Hu rtug minute magnet go.
and thus huIp cueLtsd,t Is suspcutt 2 o s .,l
ulur ia iay heart 90 col q vie, SEE Scat .ry r
! rtu' paasns through the 1t i,fe.'s {. .f.l ue
uut tlr Aarlut .'HnF With II. \ IA, Az. ,..a. .t
flowed ry thr mirror ..i on y scale, .iI.tpr. 4l.u
a ,heeu or tNru'y Ir.ucs, ami r. Sshs tF 1911! i,l
! movements, DE- rut q, n.u,qauuuH d tics
movements relrricA' the uaictcut lucs o. '..
...H .N.
| me- %, a ray 90 uEhg are InAlc o. vD-yty '.uI.
Ic4.e, "A usrIgen' Of tbs kind ,uU. t.alu