The Forest Republican. [volume] (Tionesta, Pa.) 1869-1952, 1890-08-06
SCIENTIFIC AND INDUSTRIAL

The average speed of elevators is %,
feet per minute.
Carriages to be run by gasoline viii
soon be seen in London.
Lithographic stone and lead are being
found at Marble Falls, Texas.
Plumbago in large quantities has beer
found near HoTman's Mills and High
Bridge, Hunterton, N. j.
An electrical fan, to keep Tip lively
circulation Of air in cars lighted by elec.
tricity, has been invented.
Two new cotton mills have just been
projected in South Carolina, one Of them
to be operated by water power.
A London genius has invented hot
water apparatus to warm piano keys, Sc
that dainty fingers may not be chilled.
Wood pulp is now being used as the
basis of plastic compound to serve as a
substitute for lime mortar in covering
and finishing walls.
Lead poisoning among jacquard wcav.
ers in Swiss factory has been traced to
dust from leaden weights used to carry
the thread of the yarn.
An improved brontometer which iudi-
Gates "the instant of each lightning flash
and the beginning and duration of a
thunder clap" is on exhibition in Lon
don.
English experts having found that
forced draught is straining the boilers to
an alarming extent are now turning their
attention to improving the natural
draught.
Rich and plentiful deposits of tin and
silver have just been discovered in Chero-
kee County, east of Canton, just forty
miles from Atlanta, Ga. The tin ore, as
does the silver, assays very rich.
A Swedish inventor named Thornsen
has make quick-firlng gun which can
discharge twenty.four shots minute. At
tests made recently Il target, nine inches
long and six inches wide was hit by every
shot.
The adjustable steam dock at Key
West, Fla, has been finished, but so far
the contractors have not found suitable
vessel for docking, and as this was part
of the contract final payment has been
withheld.
The Pennsylvania Railroad is expert
menting with shaking CRATE on its
freight engines, and the result is said to
be satisfactory. An engine equipped
with CRATE ran over five days without
clogging, and the fire continued brisk.
No blower was needed.
From report of the meeting of the
Berlin Anthropological Society it is
gathered that the cat is called in Chinese
"Mao," which seems an excellent ono
matopeic word. The cat is also called
"Woman's Slave" which goes to show
that the celestial old maids are as fond OF
their furry friend as their European sis
J ;ers.
In China soapstone is lagely used in
preserving structures built of sandstone
and other stones liable to crumble from
The effect of atmosphere; and the cover
ing with powdered soapstone in the form
Of paint, on some of the obelisks in that
country, composed of stone liable to at
nospheric deterioration has been the
means of preserving them intact for hun
lreds of years.
The use of nitro o-glycerine in cases Of
emergency instead of alcohol is recon-
mended by an English physician. A
drop on the tongue rouses fainting man,
and it may restore life in case of appar-
snt death, as from drowning. 1t has
quickly relieved headache, heart pains
and asthma, and strengthened weak
pulses in fevers. 1t should only be used
under advice of physician.
A locomotive working under pressure
Of 140 to 165 pounds to the square inch
may move railway train at velocity OF
sixty miles per hour, which one is apt to
think of as wonderful speed. But it
is slow compared with the rate of motion
of the projectile from a modern great
gun. Such projectile flies at the rate of
1866 miles per hour, impelled by pres
sure of 5000 to 10000 pounds per
square inch.