Wilmington daily commercial., 1875-01-27

the shape and character or the sir passages Of
the nose. There is 8 large extent of surface in
the nasal cavity the use OF which is to warm and
moisten the air we draw it into the lungs, so
that II will iot rritste them. IL also had the
power to collect and retain the little particles Of
dust that otherwise might reach thesAir cells and
do serious harm. Ii was for these reasons
that it was not hesl.,ful to breathe through
the mouth. The nose was greatly sbusei by
not using it IS nature intended, IS an organ
of respiration. The doctor pointed ont on the
manikin the nerves oi the smell. These nerves
are not only productive of great pleasures, but
they often VAIN of danger. What is the mean
ing of sneegey Ii tells us we are liable to
take cold. The upper air passages are exceed
ingy sensitive, and irritation to these causes
crest pain, whereas but little pain is eSperienc II
when the vital membranes below are diseased
The delicate membrane OF the throat may be IN
iured by the use of tobacco snd sleohol and Sc
mons pulmonary diseases may result
The lsrynx performs the double function Of
An organ Of respiration and Of speech. il is $
delicate two stringed musical instrument, which,
in spesking or singing w iis, upon as the ma
sic an does upon hls harp. he explained the ex-
pa,sion and contraction of the chords by which
the various noies were produced. Children, he
said, were liable to have these chords strained
by oyer-use when young. especially where they
were severely drilled in high notes Cpen air
speakers also were hshle 10 ln)ure or lose hAr
VOICES.
He then explained, by reference TO S plaster
csst snd two skeletons. the snatomy of the lungs
and their position with reference TO other or
gsns, and showed how the muscular action Of
the diaphragm aids respiration.
he referred 70 the difference in shape between
the male and female chest This difference
Was not owing entirely 20 dress but was natural.
He adyocSted freedom of dress. The chest
should neither be compressed below nor above
by drawing the shoulders forward. He did not
believe in drawing the shoulders back foreibly
by means OF shoulder braces; the defect should
rather be corrected by voluntary effort
We never breathe with sbsolute regularity,
II we watch ourselves we will mud that about
every sixth breath will be longer than the 9TH
ers. When We exhsle we never expel all the sir
from the lungs. When We get tired and SLEEPY
at the close OF the day we do not Keep up so
stesdilv the muscular action Of breathing, snd
We make up the lack of air IN the lungs by 4
yswn. Unpleasant as gaping may be in COM
psny, it helps 10 wake us up.
The blood is made up of liquid on which
float little globules l.S0O0 of an inch III diam
eter. There are about TO- 600, 0o0 900 OF these in
mans blood. Each one comes back TO the
heart freighted with csrbonic scid, and is pump.
ed to the lungs to discharge its little load, and
take another OF oxygen and carry it to the fsrth-
est part of the body. The process goes on from
lifes dawn to Its close. He could not see how
any one could study this wonderful mechanism
of the human heart aud not feel that there is
| one whose thoughts sre higher than ours.