The Bryan daily eagle. (Bryan, Tex.) 1895-1898, 1896-11-07
HEAR YouRsELF wINK.
The rhonendoseope That Detects pis-
ease By sound

The rhoncndoseope That Detects pis-
ease BY sound
You can hear yourself wink A Won
deriul machine has been invented by
which the hitherto inpercoptible sound
OF the action Of the cyelId Is made clear
and distinct 10 the ear The invention
Is called the phonendoscope. The new
WONDER was designed 70 be used by
physicians and surgeons for detecting
the presence Of disease BY sound. With
rs perfection It viii be possible for
the medical world TO prepare q perfect
chart which viii enumerate the sound
OF every disease known. and 10 Instant
ly detect that sound with an applica-
ton OF the phonendoscope. There will
be no mistake or misconceptions IN
the matter Of a diagnosis. The delicate
instrument which those who are for
tunate enough 70 catch a glimpse o.
now handle "a carefully as II Il we're
made o. diamonds. consists OF a clrcu-
lar or tympanum box Of highly-poliGh-
ed metal. On one Of rs fat surfaces
there are two aperiuros for the attach
mont OF that number Of little rubber
tubes. each fitted with a tiny elbow nub
70 be placed In either ear. The other
surface shows a thin and sensitive disk.
which Il readily thrown into vibration.
The thin disk. being controlled by the
compressed air Of the circular box. Is
90 sensitive that the fainiest breath
upon the disk sends a wave current
through the box. into the rubber tubes
and against the ear drum Of the listen
Ing person. Not only can this breath
upon the disk be heard. bu; is force In
transit Is multiplied a thousand-iold.
so that when Il reaches the ear Il
sounds like the roaring Of a gale OF
Wind az sea. Tapping the disk lightly
With the fingers sends a sound into the
cars like the tramplng Of many horses.
and the wink Of an eyelid gives forth
sound Ike the fall OF heavy waters.
BY the arrangement Of the rubber con-
Meeting tubes Il viii be understood that
the ends can be put into the ears 30
that any one can hear himself wink or
detect the sound Of the most gentle
breathing.
For the use Of surgeons In the locat-
ing OF disease Is an Ingenious contriv-
ance. which consists Of a second disk
attached to the hrst. with a vulcanlte
rod fastened so that the area Of auscu-
latlon may be extremely circumscribed.
BY adding the rod the conduction Of
sound Is only slightly diminished, and
thus are combined the principle OF tho
solid stethoscope with that Of the
iympanum The rod usually attached
10 the Instrument Is abou, two inches
long. but rods Of greater length arc
often used In exploring cavities Of the
anatomy which communicate with the
exterior. II one Of the larger rods be
Inserted In the mouth. the sound OF
swallowing can be heard. and the drop
ping Of the soft palate Is plainly audi
BILE UEed In connection with the
microphone transmitter OF the telc-
phone. Il would reproduce the beating
Of an irregular heart Or the wheezlne
Of diseased bronchial tube az a grea,
distance. Branched tubes are also
furnished. by means Of which a num-
Der Of persons may listen to the same
magnifed sound at the same time. Thl,
furnishes one point at least upon
which. when doctors disagree" opln'
ions viii coine!de.-San Francisco Ex.
amlner.