The Forest Republican. [volume] (Tionesta, Pa.) 1869-1952, 1889-04-10
SCIENTIFIC AND INDusrRIAL

Feldspar has been successfully imi-
tated 10y two European scientists.
The electric travelling crane in Mime
apolis has capacity of twenty tons.
In many localities in the Alps states
are quarried into the tertiary formation.
An electric car line to the top of Mis-
sionary Ridge in Tennessee is proposed.
Three hundred miles an hour is the
proposed speed for the electric postal
railroad of the future.
The new electrical signal apparatus for
ships use is said to be perfect marvel
of mechanical ingenuity.
Lieutenant Patten, United States army,
is said TO have devised a promising
method for synchronous telegraphy.
A powerful hammer is used in Eng
land operated by mildly explosive mix
ture of common coal gas and atmospheric
air
Simplicity and accuracy arc the chief
characteristics of the popular new engine
room electrical telegraph in English men
of-war.
It has been calculated that not less
than 10000, 600 of meteors, each large
enough to be visible as shooting star" Z"
enter our atmosphere daily.
OF the total area of California about
one-third is susceptible of sufficient cul-
tivation to sustain a moderately dense
population without the aid of irriga-
tion.
Professor Max Muller holds that, ac-
cording to the strict rules of positive
philosophy, we have no right to assert or
deny anything with reference to the So
called mind of animals
Dr. lie Baron, an eminent physician of
France, says that such n thing as per-
son having a snake or lizard in his
stomach was never known and never will
be. All such cases have been imaginary.
The plate rolling mill at the st. Jacques
works, CT Chattillon Commentry, in
France, has cylinders 32s feet in dame
ter and nineteen feet long, with q total
weight OF 55, 600 pounds each They are
soon to be made capable of rolling
fagots five feet thick and ingots weigh
ing more than 110, 900 pounds.
A new and ingenious scheme for sink
ing a shaft through sand, silt, and wet,
slushy grounds, aud excGvating it like
rock has been successfully tried in Bel
gium. Large iron tubes are sunk in the
sand or mud about three feet apart, and
in these tubes smaller tubes are inserted,
through which circulates cool solution
of magnesium chloride. The sand is
frozen for distance of three feet around
the tubes. 1t resembles rock, is hard and
compact, and can be excavatcd in the
same manner as rock. 1t is possible that
the process can also be used to advan-
tage in the digging of foundations where
water and sand are sources of trouble,
or for cutting tunnels under the beds Of
rivers.
The first electric crane ever built in
the United States has Just been intro
duced in the foundry of L. Z. Allis &
Co., of Milwaukee, Wis. 1t is a pom
derous affair, weighing thirty tons, and
is capable of lifting and carrying to any
part of the foundry, with ease, weight
Of twenty tons. The crane is a
bridgelike affair, suspended on tracks
built on each side of the foundry, near
the ceiling. 1t is provided with three
electric motors. One moves the crane
from one end of the foundry to the other,
another moves the carriage with which
the crane is provided from one side OF
the foundry to the other, and the other
Iuns the lifting machinery. Its advan.
tage over the ordinary power travelling
cage, which it resembles somewhat, is a
saving of power and the wear and tear
of machinery. The only other electric
crane know is in an English foundry.