Evening star., 1897-04-03

II you will look at the above picture very closely
you will see that 1t is taken from a section made
by saving right through the temporal bone of the
skull which contains the structures that go TO
make up the You will that nearly all
the parts of the situated within this bony
mass. and the bone, being a hard substance, does
not yield when the tubes become infamed and
swollen. This accounts for the intense suffering
that goes with diseases II you feel right
back of your ear You will notice IN enlargement
bump on the bone. and want to tell you that this
bump is porous and is connected with the middle
ear cavity by several channels When the middle
becomes diseased the disease often extends
along these channels and into this cavity where
abscess FORMS and the disease Is called masoidits
The Ear and the Brain.
Any disease that attacks the middle ear or
mastod cavity is very grave and dangerous, be-
these parts situated close to the brain.
Inflammation in these structures is liable to extend
TO the brain, and every disease set up in tie
middle ear causes the death of 0000 people IN tie
United States alone So serious is disease of the
middle consd dered. account of the nearness
OF parts of the BRAIN that life insurance companies
refuse TO insure those persons afflicted.
Ii such disease that destroyed the life Of
the late Roscoe Conklng, and the present Emperor
Of Germany's orratc and peculiar actions at times
attributed a chronic disease OF the middle
from which he suffers.
What Constitutes the Ear.
the head Is the organ of hearing. few understand
what this is really like that grasps the
sounds of nature and holds th.s. expressions of life
and action in its embrace until taerc nodded
the substance Of the BRAN exact copy of the
sound as is nodded the mass Of putty to the inner
surface OF the hand which arasIe il firmly. This
fixing Of sound upon the briir is called hearing.
The various parts taken together which grasp,
peat, and hold the sound are called the ear. What
Is usually styled the ear Is but projection to
guide sound into tie organ of hearing, which is
nearly two iEchcs inside tie head. The yariols
parts Of the shcWn clearly in the large
engraving, where they are seen to consist Of the
external and tube that leads from it in
warily 10 curtain that entirely blocks the end
Of this tubc-the ear drum. The drum and three
little bones that connect with 1t and the cavity
Immediately behind the drum constitute what is
called the middle ear. Those various channels
some resembling half circles and other spirals
filled with fluid into which dip The nerves of
hearing and these parts, taken together ere
oulled the internal ear. If you will take the
trouble to lock you viii notice that there is n
tube which passes from the cavity of the middle
ear down into the throa;. This is called TIE Gus
tachian tube. and 1t carries air into the deeper
reoesses Of the ear. Without air in the middle
car DO sound be heard The needs air 10
convey the sound the parts which imprson 1t
and repeat II to the brain, the same electricity
requires wire npon which to travel when it IS
sent in the form of message.
Eye and Ear Compared.
The eye is but looking glass with a cable COM
posed of nerves passing out OF Its back surface
and reaching toto the brain. The mirror of the eye
takes up pictures Of the objects that presented