The Forest Republican. [volume] (Tionesta, Pa.) 1869-1952, 1889-03-13
SCIENTIFIC AND INDUSTRIAL.


Relief models Of the moon, on the scare
of ninety miles to an inch, are being
made.
The new Clydebank sheer legs havo
100 tons capacity, and are probably the
most powerful in the world.
An international exhibition of alimen-
tary substances will be held at Cologne
from May ls to October 10.
The Austrian Government are experi-
menting with aluminium bronze for gun
barrels as it does not rust.
According to evidences found by a
geologist in Scotland, the earth lay in o
liquid state for $50, 900 years.
The weight of the armament aboard
the new American cruiser Nesuvius IL
slightly in excess of 400 tons.
The longest span of wire in the world
is between two hills in India, 1900 feet
feet high, the wire being 6OOO feet in
length.
The Department of the Interior at
Washington will be lighted by electricity,
the Brush Electric Light Company hav-
ing the contract.
The specific heat of snow or ice is
nearly that of water, hence it requires
about the same amount of heat to raise
the temperature one degree.
Spain furnishes nearly third of the
worlds production Of lead. The de-
posits are extremely numerous, and the
ore is of exceptional purity.
1t is proposed TO so connect search
lights of war vessels with the sights of
quick-firing guns, that when the light
bears on the object the gun will also.
A new shell has recently been invented
which is seymental, having compound
of metals in its forward end, one of
which will fuse when the shell strikes or
when IT explodes.
Never carry large containers of acid
in contact with your body. Should
they accidentally break, most painful
burn sometimes turning out fatally
may be the result.
BY an ingenious system of tanks the
new coasts defense vessel, designed b.
Congressman Thomas, can be sunk three
feet lower in tho water than her ordinary
draft her displacement being increased
$50 tons.
A steam launch built in Birkenhead
fifty feet long, eleven feet beam and four
feet deep, with full complement offifty
passengers, only draws two feet of
water and has already developed aspeed
of thirteen knots.
Assuming the average depth of the
Atlantic and Pacific Oceans to be two
and three quarter miles, Professor George
McGowan calculates that there is 3l@,-
$50, 600 tons of salt in the water under
each square mile of surface.
The Erie Company manufactures the
gas which is used to light the coaches.
A large plant has for several years been
in operation on Tenth street, Jersey City,
close beside the freight yard, and the gas
made there is run through a main 10 the
depot, where it is drawn off into storage
tanks under the cars.
1t is estimated that Santa Barbara,
CAL, had 500, 900 pampas plumes last
year, which will bring $40 600. The
plumes are packed in boxes, with about
$500 in box, and are mostly shipped
directly to dealers in Germany and Lon.
don, and to various cities in the East, the
foreign demand being the greatest.
The question of carrying on mason
work in freezing weather has excited
good deal of attention among architects
since the publication OF an official report
TO the British Government by a repre-
sentative in Copenhagen, from which it
appeared that brick walls are laid in that
city in winter with perfect success, the
only precaution taken being to use
freshly Stacked lime in the mortar, so
that it may be warm when put on.