The Columbian. [volume] (Bloomsburg, Pa.) 1866-1910, 1892-08-19

PRuG1 Ess OF SCIENCE.

Electricity is now being used in Geor-
gia for ginnin. cotton.
Blood travels from the heart. through
the arteries, at the rate of twelve feet in
a second
Sheet-iron kites. to enable ships in dis
tress to communicate with the shore, aie
soon to be ready to try.
A mysterious ringing Of electric bells
In q house in Switzerland was traced to
spider, whose web had connected two
wires
Umbrellas made of paper are coming
into use In France. The paper Is made
waterproof by Gelatined bchromate Of
potassium.
A man in Harrisburg claims to have
Invented an underground system for
propelling street cars, which is really
the trolley system reversed.
Instead Of the alloy of zinc and silver,
which was first chosen for the produc-
ton of AREAS plating" one containing
cadmium is now preferred.
The art of paper.making has reached
that point where growing tree can he
cut down and converted in O new wspaper,
all within twentv-four hours
Scientists assure us that upward of
5000, 900 minute glands are constantly at
work in our stomachs secreting gastric
juice. And still we have dyspepsia.
Waterproof cellulose paper, of one
and two colors, is being introduced by
German firm for tabe-cloths, book
backs, temporary covers for roofs, etc.
The latest kind of lock for nuts on
railroads. machinery or other places is
formed of an elastic non. metallic washer,
to be placed on the threaded end of the
bolt.
Bricks made Of plaster Of paris and
cork are now used in the construction Of
powder mills. In case of explosion they
offer slight resistance and are broken to
atoms.
1t is said that q wet silk handkerchief
tied, without folding, over the face is a
complete security against suffocation by
smoke; it permits free breathing and at
the same time excludes the smoke from
the face.
A recent English invention is horse.
shoe OF rubber set in the recess of a
metal frame. 1t is especially adapted to
cities where there are many asphaltum,
wooden or other smooth pavements, for
it Is impossible for the horse to slip.
A process has recently been discovered
for making -four of bananas. Chemical
experiments show that this -four contains
more nutriment than rice, and that when
eaten with beans, corn or sago it forms n
very palatable and nourishing diet.
The French Ministry of War has been
engaged for more than year in making
experiments In the preservation Of meats.
The experiments have resulted in the
discovery that frozen meat can be kept
for eight months without any change in
its appearance or powers of nourish-
ment.
One of the most important problems Of
| the hour is the cheapest way to extract
aluminium from the inexhaustible depos-
its of clay abounding in this country.
The latest process is that invented by NJ.
Faure, by which lie expects to reduce the
cost to about 16 or IS cents pound
7 Inventive Age.
A correspondent Of the Monthly Magd-
zine of Pharmacy says: A bottle OF bro
| mide left in a closed room all night,
with the stopper out, destroys all infec-
ton and insect life. l have cleared
places which were infected with vermin
many times. 1t is far more effectual
than the vapor of burning sulphur"
A man at Glasgow, Scotland, has in
vented a machine which, it is claimed,
will revolutionize the dairy industry and
do away with the farm hands who do
the milking. The machine is constructed
on the vacuum principle, and when ad-
justed to the COW the milk flows in a
continuous stream. The machine does
the work without assistance.