The Milan exchange. (Milan, Gibson County, Tenn.) 1874-1978, 1882-01-28

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skslefgn. The living qgs,1Zs ~ = vsD
different object shall ~ see BiIag M
can End 0ui abyut iiy
Upon naming ne vgri "aninai,"
picture comes before Oiir minis n slsfns
creatures having a mouth ~ est with.
and eyes 81 ses with. and possessing
feet Or wings. ~ sons other sns4us ~
moving about. bot the spyngey ars Tar
from this. They are probably the l0w.
est animals with which yOi are ae-
quaiDted. They have no nsrges. no
heart. no lungs. no mouth and no storm
ach.
Live spoDges consist ~ jelly-liks
bodies. united In n mass, aud supported
by n framework Of horny hbers, and
..eedle-shaped objects called "spicules."
This jelly-like flesh, covering all parts
Of the skeleton, Is about ~ thick a. the
white Of an egg. but IL decays immedi-
ately after the death Of the sponge.
During life the flesh presents many
bright cOlors; in some species II il Of a
brilliant green. while in others IL Is or
ange, red. yellow. etc.
The framework varies IN different
kinds Of sponge. In those which are
valuable for our use IL consists Of slorny
fibers interviewer in all directions until
they form a mass of lacy network This
you can easily see with the naked eye,
but by looking through a microscope
you will see beauty you had not imag-
ined, and which but for this valuable
instrument would never have been
dreamed Of In our ordinary sponges
these fibers are all that remain Of the
former living animal, the soft flesh hay-
ing been removed. IL is found that the
horny fibeys are composed of substance
very similar TO the silk of a silk-worm' 8
cocoon. They are exceedingly tough
and durable. Most of US have discover
ed that a good sponge becomes like an
old and tried friend and that unless il
l ia al 3
wear out.
In looking at any sponge you will
notice large holes through it, with many
small pores scattered between them.
The living sponge is constantly drawing
in water at the small pores. This water
passes through set of branching canals,
and is thrown out nom the large holes
on the surface. With a microscope i;ttle
fountains may be seen constantly play
ing from the large holes of a living
| sponge. The circulation is kept up in
the canals by the movement of ella, Z"
which are delicate threads waving gent
ly but continually. The word ella
means "eyelashes;" let us remember it,,
for this is name we shall often want to
use. The stream of water thus passing
through the sponge brings to every part
of it small particles of food, and all the
air it needs for breathing purposes.
Everything that lives must eat and
breathe, but how is the sponge to eat
without a MOUTH When the food
touches any part of its body, the soft.
jelly-like flesh sinks in to form little
bag; at the same time the surrounding
parts creep out over the morsel of food,
until it is entirely covered and digested.
After this the flesh returns to its original
position, and any shell or other refuse
that remains from the meal is washed
away.
Sponges have a curious manner OF
producing their young. At certain sea-
sons very small oval masses of jelly are
formed on the inner surface of the ca
mails, which finally drop off. They re
main in the canals for time, and be-
come perfect eggs, after which they are
thrown out by the stream issuing from
the fountains, and instead Of falling tC