The Express.
London, England, 1858-09-18 00:00:00

MEP ELI TSLIORAPIIB.

The last failure of the Atlantic Telegraph
has naturally given rise to a yodel of metro-
Terries as to no man of the break down to the
matintaking. Several eonAdeat *ion ban been
!coached upon the subject as well by nautical as
mientile men, but It yet remain to be lacer-
tidwid where the real fault lies. Mr William Rowett
lof Leadenhall- street. • gentlemen of ecaaiderable
nautical experience, tin all alorg predicted that an iron
cable would be found inapplicable to drop sea telegraph',
sad he now insists that some portion of the Atlantic cable
1 has been destroyed by its own weight, or by the action
,of the sea. He roggesta • number of objection to the me
of • metal covering in Lying down deep sea tele-
graphs ; the most potent of theta all is that when
I It gets overstrained the tension tamed. to the electric wire,
sad be believes that to some such mishap mast be attributed
' the recent stoppage in the electric currants betimes Valencia
Newfoundlaad. The cable that be would apply
to the purpose should be composed of hemp,
and be has invented • able made of that material which
be contends is free from the objections that en Ina
cable le open to. In the first place a hemp cable could
be payed out with the utmost ease and woakl not be
liable to accident from stratahig ; beanie the hemp would
gin with the strain, while the strain would be cionfined
to the able itself, and would not extend to the &MEL who
which It contained. Moreover, when the strala ar premiere
teased. • hemp able would compress or coatract
whereas when nit an ken cable is twisted, or bee=
Mastit wane rearm to It. former oondition.
far mere Sable to irrupting infirmness than
hemp, while submerged; Indeed experience prove, that
Na water pesrves roping where it corrodes or destroys
weld end that eircuoistanoe &done soother shoe(
MOM flar prairfts ►heap to iron in laying down deep
ems lthipapin. This afternoon a number of scientific
Ind aired geatleassa wet at Mr. Rowett's 'offices, to in-
i:ipsepselmen at his hemp!. cable, and heir its
The saw prodaosd neighs about
helf • ion teleM and in paying out the strata upon it
wed/ be at the rate of of 26Ibe. to the mile; but
Mr. Reevitaaphined that both the weight and specific gravity
mold ineeeend to say extent—another advantage
Obi lamp ben ever Iron. It could be so
we Is leggin • day or • week to sink it,
sal awieeth selintthe authorities are of opiolon
that the AtlLtthihriVeph can only succeed with
the aid of • obis es and flexible that it will re-
gybe seen time to Mapes before it
Gads he lavel. Aa abjection wee raised that • hemp able
meld le Salve to with from the Witt/Doe of the water ; but
Mr. lethal antitee that eventuality, by submitting
his withi to • mineral preparauce that enters late
thenthel egablnagen with the fibres of the hemp
nil math It prosaic tly impervious to the actions of
of
lit ether perithabie islineaces. It has,
erneethr_ , the Wean teasameatheine of economy.
It email be laid down ihr W per mile, and
ereatiber wield as it regrew. It has been
aired le the At T&piph llfent-pany ; but, calorie-
Mandy,
"they eth only astowie. W • have spent all our
/11/019.