, 1863-04-25

AP Akza EA2A. L. A@ IL NJ So
0fs:e cE2ars Of Special sere-, reSt to tie Ey.. IN
and Importance Il tho En-: ce sense OF hcsrias
1t may be considered In three se7sal parts ~ CT
te;r:l. riddle. ED tuteEn-l. The external ors IT,
commonly called the Lar. is Technically calie tie Al.
rice It's acartIaginous projection :-om the sdes If
the head Of uneven surface and designed for the co
lection and direction Of sound. From te au-iet. Iu
ward and downward, extends to5c or casc1 fcan II
Inch to N 11ch and quarter In length called TIC Nc
atus Audttorious, OF Auditory Carat. This ltc tho
Auslcie. presents curved and Irregular sustacc Ii
act every rast Of this orgsn both external and Inter
nal present. oae continued seses Of a,rrIa<!tes-
depressohs aud elevations.
Tie ensAce to the Auditory Canal Is furnished With
numerous short. still hstrs like tue cyclasaes dona.
less to prevent tic tngress Of Insects atero,ly 1t il
lined with highly sensitive membrane bcaen,h which
Is !mbeddsd the Cesumincus Glands. which secrcte
tie Ce1uucea. or Ear Max.
Theinuer extremity Of this tube il covered with A
thin ser!traesraraut muscular membrane c,,et. ths
ser.brsru Tympaai, which rs'a1es and coateacss ID
gradrnte the volume and in:eusity Of sound
1nte1foffy. and beyond the Mec1braua Tvmpsn} ia
tie Mic die Eur, susll. irregular ssped a: chamber
called to Tympnac Cavity. 1t ls lined with mug Ill,
nealbta1c. and communicates, through the East.cat
IL Tube witt! the upper and back part Of tho t,-o,,
still beyond the Middle Ear Nelsed Into sse 2e.t2us
or hard Ioro1 Of tic temporal bo1e Is tie Laayrat
CT i1te: raj ear pgseents series OF w!inss chao'
reled through the temple bone. and comprises thrs
several parts. kowu US the Vestihule Semi Circular
CAMS and the CUcA:e7. all Of EiIch caaane1s a-c
lined ith serops membrane. which secrets rrta
called tho PerllSn,ph, in which terminates the Dla
Eeuts Ut the Auditory Se:rc, or aeryc Of heartn-
Across the Middle Ear, connecting The Mcnnrana
Tyupana With tie nc1nb1ane OF thu Labycln,h ~.
tends tha Oshlcles. chal1 OF extremely little hon
covered AID attached together By membrane a,5
called the MaleoIs. 1ncus. o., Orblcu1ar aid Stace
Thus employed In the function Of hearing. wc ,,ra
tie An! ic!c to collect the sound-the Neatus u1+
r;ous 10 direcl little Membrane Tympau,. ro cr,s
atc it. force and intcnsity-and the llttic Os,1es -
y!bra,c in the as chamber Or Middle Ear traos
nit It 10 tho nerve membrane OF the bonY Lahyrn+h
through 4licl the mind Listens and erfoyi In n,i
these. low bcauttnl. how delicate, how Eon,c-t,1
how manifest the evidences OF design on the MARI ~
HIN who rade every normal sense for pcrfcct usc
who doeth oil thlags wc1.'
DISEASES OF THE EAR,
In the foregoing brief descriptive outline OF tho
structure and functions Of tae human ear let a. re-
member that each ot its several parts Il subject IN
variety Of diseases. nearly ali Of which impair tia
kear!rE and which require tho most careful and .u
cious treatment at the hands Of the experienced AL
rist Catarrhal Deafness consequent upon 1ata,urna
ttcu Of the EustachIan tube and TypsnIc cavity a,1
specially indicated By ringing noises in tho ea- Il Of
most frequent occurrence, and, under appToprfatc
treatment Is readily cured but apart from this yery
few diseases Of the susceptible Of ary benenr
whatever. and tile csperimentve practice dropping
osgnto The ear OF inserting bits Of cotton saturated
will, eliminating tncturcs. blowing causttc powders
In tho enE. aad the wearing Of mechanical coatrty
TIC shape Of gold silver tubes which e,r,
uate the for tho time being only to Increase
the deafness th4reate7-npne CT tteze means coo,f'
int any raEt Of practice bat Hear the uni
wtateycr school or belief, They arc t.e e.inTica!
science IN y l!ch to sesve their Own selfish eudj
HYDROkOSIA.
To the many Ehose unhappy experience III the r7st
proves the signal truthfulntss Of the rEec:dIny
tc METHOD ot practice designed Mlta sre;ia! refer
in their crEAplE stages. which METHOD u nt oucc
original safe and sfsupe and a}fE: udatorY to
thc good sense Of practitioner ann patient
aIiald3-1t GR. S. CLES5t}S PRATT.