The Opelousas courier., 1892-04-09
SCIENTIFIC AND INDUSTRIAL.
Electric elevators increase.

Electric elevators increase.
There's an electric hammer.
Recent experiments have shown tina
liquid oxygen is magnetic.
Steam locomotives are to be tried OF
the Chicago Gil. street lines.
The best isinglass dissolves completely
in hot water, leaving no visible re:iduum.
The ieweler has drills so small thai
thew can bore q hole only one thousandth
| of an inch in diameter through Il pre-
cious stone.
The globular brass lantern, hitherto in
use for military service purposes, is to
be superseded by q folding lantern for
use in tents.
There is a new sanitarium in the Rivi
era of Italy for the inhalation of ozone
for the cure of most weaknesses, Dartlcu-
larlY tuberculosis.
The best material foRhardening and
temper1ng malleable iron Ind steel goods
is said to be leather citders, made by
burning waste leather.
Children are not numerous in France
Out of 0 1000, 900 families in the Re-
public oue-tifth have no children at all
and another fifth have child each.
The star Sirius, which is shown to be
about double the size Of our sun, eulits
from forty to sixty fold more light thu
the sun. owing to its matter being much
more difused.
Recent explorations in the district of
Sonora, Mexico, show that the coal de-
posts in the San Marcial Valley will
amount to fully 20, 900, 900, 600 tons and
it is of excellent quality.
A French inventor has attached a tiny
incandescent lamp to an ordinary pencil
for use by reporters and Others having
10 take notes at night. The light is not
affected by rain or wind. Tne battery
is carried in the pocket, the wires pass
ing down the sleeve.
Anovel method of testing the con Hilton
Of a horses feet is to attach one termi-
nal of a light battery to the bit and the
other to the shoe. If the foot is i'm
properly penetrated by the nails the ami
NAL will squirm under the test, but will
give no token If there is no irritation.
The natives of Madagascar formerly
followed the moon in determining time,
but since the influx of missionaries the
Queen issued an edict that the Christian
year should be followed. But in COM
mencing the year tue first year the date
Of the first day was set some time in
October and November.
The red color of the markings on
is believed by MIR. Barnard, che
eminent astronomer, to be an indication
their age, the spots or markings (other
han the white spots) being dark or
black on first appearances, but afterward
becoming red. The great red spo0seens
be no exception to the rule.
The success of the existing electric
in London, England, has given
IN impetus to the movement tor loco.
notion of a similar kind. For considera-
during the forthcoming session Of
Parliament there ale no fewer than five
ills which propose either the construc-
ion of new electric railways or the ex-
ension of lines already authorized.
A Colorado man has devised an cleo
real machine that successfully operates
n placer deposits of gold that could not
re probably worked by the sIuice
Methods. The method employed for
aving the gold is that of collecting it
y meau of the electric current, SO that
! forms an amalgam from watch the
recious metal may be easily separated.