The Bossier banner. [volume] (Bellevue, Bossier Parish, La.) 1859-1952, 1888-04-12
SCIENCE AND INDUSTRY,


-Pasteur's plan of exterminating
rabbits by inoculating them with chick
en- cholera has been tried at Rheims
with success.
1t is stated that several diamonds
were found in meteoric stone. weigh
ing about four pounds, that fell In Kras-
nolobodsk, Russia. This discovery has
set people to examining meteorites with
unusual interest.
The artificial production OF chickens
is great industry in Franklin county,
Pennsylvania. Over 700 incubators are
in operation and the production is from
10, 600, 900 to 100000 chickens annu-
ally.
Ophthalmological society of Heidelberg
his second success in grating the rab-
bits cornea into the human eye. The
patients visual power with the new
eye is about one-tenth of the normal,
and coarse print may be read.
The advisability of testing as foggy
weather signals sudden flashes, such as
those of gunpowder, has been suggest
ed to the British lighthouse authorities
by Lord Rayleigh and Professor Stokes,
who think che flashes might attract at
tention where an equal fixed light might
escape notice.
An instrument called the auto
graphometer has lately been devised,
which autographically records the plan
of the ground over which tits dragged.
1t can be carried about on light We
hicle, and when in use indi Gates the to-
biography and differences of level of all
places over which it passes.
There are about five hundred diff
ferent kinds of humming birds. These
birds belong exclusively to the conti-
nent of America and its islands. From
America they range north to the Arctic
regions and south to Patagonia; and
from the level of the sea to the height
of the Andes.
Among the almost numberless
methods of removing particles from the
eye, the following is recommended as
an efficient means: Make loop by
doubling horse-hair. Raise the lid of
the eye in which is the foreign particle;
slip the loop over it, and placing the
lid in contact with the eyeball, with
draw the loop, and the particle will be
| drawn out with it t--Scientif american.
The Polytechnical Journal describes
a new kind of lubricant. One hundred
parts Of mineral oil and twenty-five
parts of castor oil are mixed thorough
ywith sixty to seventy parts of sui
phuric acid, and the whole worked with
two or three volumes of water. In this
condition the composition is allowed to
stand some time, the watery layer is
then drawn off, and, after remaining
undisturbed for several days, it is care
fully neutralized with soda or potash.
1t is found that living creatures
brought up from sea depths of tour
miles or more. suffer greatly from the
changed conditions of pressure and
temperature. At those vast depths the
pressure is tremendous, and the tenn
perature is comparatively low. On
being brought to the surface, the deep
sea creatures are sometimes torn in
pieces by the powerful expansion OF
their organisms occasioned by decrease
in pressure, and sometimes they ab-
solutely melt away before the eyes of
the beholder.'
1t is estimated that in the United
States alone during the year 1887 there
were manufactured and sold about half
a million gallons of writing ink and
about four thousand tons of printing
ink. Of course considerable quantity
of this was exported, and some ink OF
European manufacture was also i'm
ported. But the importation of this
article is constantly decreasing as the
excellence of the home manufactures
improve and the market is supplied by
them at cheaper rate.
Science has demonstrated that
sugar is contained in nearly every vege.
table and animal product, the constitu-
ent elements of which are known. The
sweetness of the different varieties Of
sugar varies, cane sugar being five
times sweeter than beet sugar, beei
sugar several times as sweet as grape
sugar, and so on. But now sweet
substance has been discovered in coal
oil tar which is said to be three hundred
times sweeter than cane sugar. Thi:
new substance is called saccharine, and
one drop of it will sweeten three quarts
of water.
virginia's Old Powder Horn.
Tho AlI asD.,,yla,. Horn -