The Anderson intelligencer. [volume] (Anderson Court House, S.C.) 1860-1914, 1877-03-08

have to be laid under ground instead OF
strung on poles. Apropos to singing by
telegraph, I asked if it would not save
good deal of expense to our American
opera managers. can American au-
dience could hear Nilsson, Patti, ,or any
European prima donna, without bring
ing them across the Atlantic. ], sug-
gested. "Just place the receiving ma.
chine in the Boston Music Hall, for ia.
stance, and let the songstress put her
mouth close to the mouthpiece in.P Paris;
London, Vienna or St. Petersburg, and
the effect would be the same. as If the
prima donna herself were present in the
flesh" ."is.",r, .Taf.J"ht 81 ..tl) 9'J.;s
Certainly" said Mr.. Watson, smiling,
"and it would be curious to observe what
effect the presence Of the voice and ab-
sence of the person would have On the
critics. . Homely singers would diprobably
advance in public esteem, while some Of
the, beautiful cantatrices might suffer q
corresponding setback when their voices
were judged on their nnerits." u'o't '''.'
No trial has yet been made, however,
of the transmission of sounds to so.great
o distance as across the, Atlantic. Mr..
Watson said that as far as. they had been
able to ascertain, there seemed to be q
limit to the distance over which 1.-THE;
sounds could be made to travel, but he
expressed himself as confident that in
due time any given distance could be an.
nihilated. 1--WE have, id fact,n he added :
"talked througha q wire arranged to give
an artificial resistance equal to 10000
ohms, which is more resistance. than the
entire length of the Atlantic cable would
offer. But there are other obstacles to
be overcome in order to''transtnit the
sound fthe voice correctly such q
distance as that Prof. Bell AND !, are
constantly at work here perfecting the
system you see. When q favorable op-.
portunity offers, we shall try and have 4
practical test over one of the transatlan-
tic cables:"' ..,e.. ~ :. sn,iJ ID, bnr NOS
The wonderful little, instrument of,
whose future value to civilization the in.
ventor is so sangnine, consists Of q pow
erful compound permanent. magnet, to
the poles of which are attached ordinary.
telegraphic coils of insulated wire. In
front of the poles, surrounded by, these
coils Of wire, is a diaphragm Of iron. ia
mouthpiece, whose function is to con.
verge the sound upon this diaphragm,
substantially completes the arrangement,
The operation of the instrument Is thus
described by Prof Bell: The motion II
steel or iron in front ofIthe poles ofa
magnet creates current of electricity in,l
coils surrounding the poles of the magnet,
and the duration Of this current Of. .elec.
tricity comedies with the duration IF the
motion of the steel or iron moved or VIZ
brated in the proximity Of the magnet.
When the human voice causes the dia.
.phragm to vibrate, electrical undulatiols
are induced in the coils around tie mag
nets precisely similar to the undulations
of the sir produced by the .voicea9 The
coils are connected with the line wire,
and the undulations induced in them
travel through The wire, and passing
through the coils of another Instrument
of similar construction at the other end
of the line, are again resolved, into air
undulations by the diaphragm of this in
strument. The voltaic battery is entire.
" dispensed with. The line wire may
be of any givenIlength, provided the in
sulatiou be good. Prof. Bell further says
that soft tones can be heard across the
wires even more distinctly than loud. nnt:
terances, even a whisper being audible.
.f--.