The Red Cloud chief., 1888-07-20
SCIENCE AND INDUSTRY.

SCiENCE AND >
"A new perfume is named '-Opopo-
nax." and is highly esteemed in Paris.
1t has a modified OiOr Of carrots. and
Is chiefly made from that vegetable.
VIVA may be Of great value in
ship-building and Matchmaking is the
discovery that steel. mixed with twen-
ty-four per cent. Of manganese becomes
nOn-magnetic.
The fabric known as Chinese grass
cloth is made from the fiber OF nettles.
The cloth is peculiarly glossy and
Transparent, and as betting for ma
chinery has double the strength OF
leather.
Electric rifles are the latest. In
stead Of the ordinary percussion firing
device. a dry chloride of silver battery
and a primary coil will. so it was lately
stated before the American Institute.
fire the rife 5000 times without re-
charging.
EXPERIMENTS are being made on
Prussian railroads with a~xle-bOxes 1T
ted with bearings of vegetable parch-
ment in place of brass. The claim is
made that these compressed paper
bearings make a tough material that is
superior TO metal.
According to the Electrical Rsriew.
medicine may be introduced into the
human system by electricity. The
electrodes Of a battery are saturated
with the medicine and applied locally
to the skin. Experiments show that
there is an actual absorption of the
medicine into the system.
Russian observations have shown
that teeth decay in q quite regular
order. the lower third mOlar being the
first attacked. then the upper. then the
lower fourth molar. and so on. the
lower. incisors and canine teeth being
the last affected. Upper teeth. as a
rule. are more durable than lower.
right than left. those of dark persons
than those of blondes. those Of short
persons than those of the tall.
investigations made by Sohneke
u0SC lOu ~ SOuCAuSAOA SA40s VIC 2
trici,y which is discharged during a
thunder storm is produced by the fric-
ton of water and ice-that is. the ice
is electrified by friction with water;
just before a thunder storm. water
clouds (cumuli) and ice clouds (cirri.
cirrosrati) appear simultaneously in
the sky. and the friction Of these parti-
cles Of ice and water is. according to
this theory. a sufficient cause of the
electricity which is generated.
Artificial sponge-rearing is being
prscticed in Syria From a report 70
the Austrian Board of Trade it appears
that the ''sponge-fsrmer." by taking
small pieces Of living sponge and
planting them in favorable spots.
has obtained large specimens in the
course Of three years. It is stated that
1000 sponges cost no nor for cultiva-
ton and interest on capital than 225
francs (forty-ive dollars.) and the
Austro-H Hungarian Government has
authorized the protection OF this new
industry on the coast Of Dalmatia.
1t has been estimated that the walls
Of u building in which fifty thousand
bricks are used require nearly five
thousand gallons Of water in the con
struction; this being stored in the pores
and spaces Of the bricks and mortar
until dispelled in the form Of vapor. It
can not be too well known that until
this large quantity OF water is 50 dis
PEELED. the house is not habitable.
The town Of Basic. in Switzerland. has
recently adopted a wise regulation
which forbids the occupation Of newly
built houses until four months after
their completion