Forest City press. (Forest City, Potter County, D.T. [S.D.]) 1883-19??, 1912-08-29

almost every case without a drop Of
pus. Hospital gangrene. erysipelas ana
blood poisoning, once the scourges OF
hospitals and army camps. are now al
most unknown after operation.
The germ theory has enabled MS to
establish two lines of defense against
disease. n inside and the other out
side the body. where we cannot abso-
lutely prevent infection We can in
crease the body's resistance to disease.
ut Is In the power Of man, said the
great Pasteur. Ito make all parasitic
diseases disappear from the EARTH"
That prophetic u%tterance is in process
of fulflment.
Spectrum Analysis.
DR.. David Todd, professor Of astron-
omy at Amherst. inaists that, although
not so widely practical az the wireless,
nevertheless the spectroscope Is really
more wonderful; for the wireless only
receives the wave impulse and trans
mits the same unmodttied. But the
s-pectroscope has the marvellous power
Of classifying a confused tumble Of
as to signify what the original source
of the light is. and what conditions it
encounters in passing to the eye.
Through the spectroscope many new
chemical elements nave been found.
The vibratory motion Of the molecule
AiAA SAiO o0SIS W lIldIlCI W IIlo
lulniniferous ether have been investi-
gated. The spectroscope has helped in
a study Of the circulatory functions in
the living plant and animal. Industrial
processes. too. have been greatly bene-
fitted. as the introduction of important
improvements in manufacturing steel.
But the greatest wonder is bringing
the stars to us that we know what
they are made of. So incapably far
away that even In the largest tele-
scope they show only as the tiniest
points. we nevertheless find out with
absolute certainty just what elements
are the sources of their distant light.
In such ways the science of the stars
has been revolutionized by the spectro-
scope and the whole inverse becomes
the familiar haunt of the astronomer.
who tells us that outermost space is
filled with substances precisely like
those of which our earth is COM
posed. Ultimately. too, the spectro-
scope will no doubt afford the last
word on that greatest Of all problems
In physical science. the order of the
cosmos. or the origin and distribu-
ton of the unnumbered millions of
stars throughout the celestial space.
Tho x-Ray.
Robert Williams Wood. professor of
experimental physics at Johns Hop
kins. tells Popular Mechanics that the
discovery of the X-ray was made acct
dentally and for more than a year it
was buried in q German pamphlet. to
become known generally to the scien-
tifc world only fifteen years ago,
since which time little progress has
been made i'll study of the nature Of
the rays. They are wonderful in that
they are man-made; they do not exist
I'm nature, as do light. heat. electricity
and the cathode rays. They may be
said to have beer made by man out
of nothing. for they are generated In q
One property that makes them won
derful to the physicist is their ability
to pass through thick plates OF metal.
All other forms of radiant energy in
the ether. electric waves. heat waves
and light wave are stopped by even
verv fine thin films Of metal. True,
light is able to struggle through the
thinnest gold leaf. but the X-ray will
ass through a slab Of aluminium
an inch thick. This is their most Won
eul property. and is much more start
ling than their ability to pass through
leather. wood. brick and stone, for
these are Opaque to light more as a
result Of their structure and accidental
p~eculiarities. than of their inherent
atomic structure. while the flesh of
animals is quite transparent to light
though to a much less degree than to