The Eaton Democrat. (Eaton, Ohio) 1875-1903, 1877-10-04
Scientific and Useful.

Enlargement of the glands of the neck
is often caused by wearing the collar too
tight.
E. A. Blood, of Bloomington, ILL.,, says
that bran poultice is an infallible cure
for poison ivy.
The temple of Ypsambul, in Nubia, is
cut out of solid rock, and is of vast
dimensions. In it are four colossal
figures sixty-five feet high, twenty-five
feet across the shoulders, with faces
seven feet high and ears about yard
long.
Among the best conductors of sound
are iron and glass. Through them
sound is transmitted sixteen thousand
eight hundred feet, or over three miles
per second. But in air sound travels
only one thousand one hundred and
forty-two feet, or about one-quarter of
mile per second.
An Arkansas or Wachitas stone, which
can be procured of almost any hardware
dealer, is the best for sharpening small
cutters and drills. Use plenty of sperm
oil on the stone and keep it enclosed in
a tight box or case made to secure it.
Clean the surface of the stone occasion
ally with kerosene.
NJ Girard, of the Academy of Science,
Paris, proposes the sulpho-carbonate of
potash as a remedy for the Colorado
beetle. He is not inclined to share the
alarm which that beetle has caused in
Europe, because he says that another
France has been easily kept down.
M. Ziegler has arrived at the conclu-
sion that hailstones can not attain a great
size unless their course in the lower and
denser strata of the atmosphere is long.
His observations have shown him that
the trajectory of large hailstones forms an
acute angle with the ground; but further
research is needed to give this theory
adequate and general support.
For prevention of boiler scale Herr
Clouth employs a caoutchouc lacquer,
which prevents the adhesion of the sedi-
ment to the walls of the boiler, SO that
the scale can be easily removed. After
the scaling the boiler is left bright and
smooth. The lacquer does not injure
the iron, for its ingredients are only lin
seed oil and India rubber.
Sal ammoniac or chloride Of am
monium has been manufactured for ages
by the potters in the Kurnal district of
the Punjab, Hindoostan. They obtain
it by baking bricks made of the mud
from the bottom of bonds, scraping off
ef1orescence from the surface of the
bricks, and purifying it by solution,
crystalization and subsequent sublima-
tion in thin dark colored glass vessels.
The purified sal ammoniac goes by the
name of Naushadar
NJ. Figier, in a paper read before
the Anthropological Society of Vienna,
thinks that the lands now known as
Turkey and Greece were first peopled by
the Iberians, and that they were sue
ceeded by the Illyrians and Thracians-
the two races called Pelasgians in an
cient authors. The Hellenes conquered
them but adopted from them what ad-
vancement had been made in art and
science, and thus secured a credit for
progress with is rightly due to the
Pelasgians.
Many attempts have been made to ac-
count for the superiority of butter from
one district over that from another. The
popular notion is that it is due to the
greater prevalence of the "sweet vernal
grass" in the pastures and hay-felds
which gives its peculiar fragrance to
meadow hay. The truth is that much
depends on the purity of the air in
which the milk afterward cools. Mill
has particular affinity for any odor:
which may happen to be in the atmos
phere.