Memphis daily appeal. [volume] (Memphis, Tenn.) 1847-1886, 1883-09-23
ELECTRIC INTERESTS.
Some ef. .he Wonderful Apparatus n
the vienna Exposition

the vienna Exposition.
The telephone, in its manifold varieties
and shapes, constructed according to this
or that inventor, is to be found in almost
every nook and corner of the building,
says the correspondent of the London
Telegraph at the Vienna Electrical Exposi-
ton. In one of the galleries eight curious
looking, gayly-decprated %indowless lit
tie huts have been erected communicating
with the outer world by thick, heavy
door, which closes Theoretically. The in
terror is lighted from above. The tele-
phones attached to the walls uommuni-
cate with the Imperial Operahouse, whence
the sound il conducted through subter-
ranear wires for a distance of four or five
miles. A few nights ago an experiment
was made in this department, in the pres
ence of his imperial hignness Crown
Prince Rudolph, aida was being per
80 celest Aida" and the clang OF the trum-
pets in the triumphal march were trans
mitted with a precision and clearness
probably never yet attained in any of the
similar experiments heretofore made.
Other wires connect tho telephone
huts with the popular concerts
given every evening in Vienna,
so that by crossing over from one
OF these musical dens to the other we may
be transported from the melancholy wall
of Wagnerian funeral march to the merry
strains OF one of Strausss walt4es. III the
British section, one of the greatest of
electrical inventions, Sir William Tnom-
sons syphon-recorder and mirror instru-
ment, is exhibited by the Eastern Tele-
graph Company. This delicate apparatus,
now so well known in scientific circles, is
used not only in the offices Of the com
pany itself but over the entire globe where
extreme refinement and accuracy are re-
quired. The French Postal and Tele-
graphic Department has sent to Vienna
the tasteful kiosk made for the Paris exhi-
bition OF 1851. 1t is placed on platform
Immediately opposite the principal en-
trance. Under the flooring are 1900 or
1900 cells, composing the powerful bat
teries required for the ingenious appar-
atus displayed. Here may be seen teleg-
| raphy perfected, apparently, to the ut
| most limit. Not only is the language OF
| man conveyed over thousands of miles in
a few seconds, but his very handwriting,
and the drawing he puts on paper, are
| transmitted letter for letter and line for
| line from one point to another. The
| French War Office exhibits complicated in
| struments for measuring the speed of pro
| jectiles, for the exact estimate of the force
| of recoil of guns and rifles, etc. The navy
| the colonies, the Departments of Commerce
and Public instruction are all represented
Among the curious instruments is an cleo
| trio SCALE invented by NJ. Becquerel, dis
| pensing with the use of weights. The
| amount of electromagnetic force neces-
sary to keep the needle of the scale at its
center corresponds on a dynamometer tc
the weight. DIR. Boudet, OF Paris, contrib
utes scientific apparatus of much impor
| tance. In medicine sound is OF infinitely
more diagnostic value than sight. Acting
on this principle, DR.. Boudet has applied
| the telephone, or, more accurately speak
| ing, the microphone, to instruments which
| heretofore transmitted but imperfectly tC
| the observers ear those sounds that inya
riably accompany many organs of the hu
man body in their functions, and which il
their slightest variations impart much in
| formation to the experienced physician
| DIR. Boudet has now invented stetho
scope so delicate that the murmurs hearC
with each beating of the heart are trans
mitted with the greatest accuracy, render
ing perfectly appreciable the most trihin;
deviation from the normal; the soft
breezy sound OF the air passing through
the minute tubes of the lung cannot un
dergo the slightest change without beiny
easily detected by the instrument. DR.
Boudets sphygmophone records the flow
ing of the blood as it rushes through tn
arteries, and his myophone renders audi
bic the crisp, cracking sound caused by
muscle as it contracts. Altogether tn
French exhibition is most complete an,
remarkable display of the innumerabl
applications of electricity.