St. Landry democrat. (Opelousas, La.) 1878-1894, 1891-10-17
POPULAR SCIENCE.

Oxygen is the most abundant of al
the elements.
Princeton College will send out an ex.
petition to Western Montana in search
of fossils.
Recent calculations show that tn re &c.
tromotive force of bolt of lightning
produces an energy of upward of 3, OOO,-
600 horse power.
The photograph has been employed to
register the conversation coming over the
telephone wires so as to keep record
of the days business.
Recent observations with the Lick tele
scope of the shadow of one of Jupitcr's
satellites are said to show that the tiny
moon itself is double.
The electrostatic resistance of the At.
lantic cable reduces the speed of the elec-
trio current more than one third, requir-
ing three seconds tor it to travel to
Europe.
The suffering due to felon on ones
finger has been successfully relieved and
rapid cure made by means of electricity.
Salt and turpentine or fly blister will
check atelon at the start.
NJ. Pictet, a Swiss scientist who is
trying 10 make pure chloroform, says
that the fatal effects following the use
of this drug are not due to the chloro-
form but the impurities it contains.
Recent experiments show that an cleo.
trio current will travel over good con-
ductor at the rate of 10000 miles a
minute, or around the earth in three Sec
onds. Light travels at the rate of l, O0O,.
600 miles minute.
Experiment has shown that when coal
is burnt in an open CRATE from one to
three per cent. of the coal escapes in the
form of unburnt solid particles, or
"soot," and about ten per cent. is lost
in the form of volatile compounds of car
bon.
During the past winter the earth of the
village of KirnuJarwi, near Paja, Lap
land, became suddenly very hot, the ice
and snow melting Immediately, and the
application OF ones hand to the earth
was liable to result in an uncomfortaby
warm sensation.
In England leaflets are being dis
tributed on the subject of the destruc-
ton of crops in the rural districts.
Posters showing magnifed illustrations
'f the Hessian fly and the winter moth
ire being displayed in the postofice to
enable farmers to recognize them.
The source of all the worlds energy
zones from sunshine. The energy of the |
inc plate of an electric battery comes
rom the coal with which it was burned |
when taken from the mines, and the
Energy of that same coal comes from the
unlight that originally nourished it
when it was formerly in the form OF
rowing plants.
Many years ago an ocean steamship
made onl y ten or twelve revolutions OF
he engine, using only five pounds of
team pressure. With this she averaged
bout eight knots. High powered ships
f the present day use thirty-six times
his pressure and make seven times the
evolutions. Their speed is only two and
half times as great.
The following metals will conduct cleo.
'icity in the following proportions, viz.
liver, 100; copper, ninety-six; gold,
sventy-two; aluminium, tifty-two; zinc,
venty-six; platinum, sixteen; iron,
ftcen; nickel, twelve; tin, eleven; lead,
wen. OF the above, copper and iron
ave the greatest commercial value as
ectrical conductors.
The flora of Europe embraces about
{, 200 species. India has about Is, 900.
he British possessions in North America,
Tough with an area nearly as large as
urope, have only about 5000. One of
he riches fioras is that of Cape of Good
ope and Natal, which figures up about
J, 900 species. Australia also is rich in
'ecies, about 10, 900 heing now known.
A recent departure in obtaining extra
TAUGHT for furnaces on steamships with
1T the use of blowers or other devices
Is been successfully tried on the Scot
the Cape Mail Line. This vessel has
zen furnished with smokestacks 100 feet
gh above the CRATES. The increased |
'aught is equivalent to water pressure
three-fourths of an inch. The vessel
eed is nineteen knots.