The Forest Republican. [volume] (Tionesta, Pa.) 1869-1952, 1889-09-25
SCIENTIFIC AND INDUSTRIAL.


A new marble saw cuts two and half
inches a minute.
Lime has of late been used to draw
frost out of the ground.
Grooming brushes for horses arc run
in Chicago by electric motors.
The practical results Of the application
of electricity to tempering steel are said
70 be very satisfactory.
Dermatologists declare that badness is
not disease of the hair but of the skin,
and that BARRIERS should not meddle with
its cure.
1t is believed TO be quite possible with
Wimshurst machine to provide actual
thunder clouds on miniature scale in a
large building.
A German chemist, r. Lupke, has
proven that plants may develop when no
potash is present, but their condition
falls below the normal.
Photographs of the fight and explo-
sion of dynamite cartridges are among
the achievements of the instantaneous
method of photography.
Professor Moebius has proved, as lately
stated to the Berlin Physiological Society,
that the anatomical arrangements of the
flying fish's fins and muscles make fight
impossible.
Hydrophobia was abolished in one
year in Scandinavia by the simple pro-
cess of muzzling the dogs, although
there has been $50 cases in the preced-
ing six months.
The pressure at the base of the Wash
ington Monument is 5S 35 pounds to the
square centimetre, while that upon the
base OF the EifTel Tower is not more than
nine pounds to the same space.
Professor Hazen, stationed at the
Mount Washington signal station, has
made new and careful computation of
the height of the mountain, and finds that
it has height of $500 feet above mean
low tide. This is seven feet higher than
previous measurements made it.
Discovery has been made that farm
directly west of Topeka, Kan, contains
a fine bed of terra Gotta clay. Beds in
New Jersey and Ohio have prior to this
time furnished all the terra Gotta works
with clay. This industry, when properly
developed, will be worth TO the city
about $500, 900 annually.
Some interesting electrical obserya-
tions have already been made at the sum
NIT of the Eiifel Tower. 1t has been
found that the tower is marvellous
lightning conductor, and that were the
Enhtpinfr 10 ctrslra ft n,,l,
there be no damage done, but the visitors
themselves would not notice the shock.
A new mineral of exceptional chemical
interest has been discovered, says Nature,
by Mr.. Sperry, chemist to the Canadian
Copper Company, of Sudbury, Ontario,
Canada. 1t is an arsenidc of platinum,
and is the first mineral yet found con
tanning platinum as an important con
stituent, other than the natural alloys
with various metals of the platinum
group.
An English journal is authority for
the following: Short-sightedneSs des-
cends from parent to child in diagonal
succession-that is, sons inherit it most
frequently from their mothers and
huNS SiiNClS llOul lhcl ldlnCIS. Inc aver
age of such cross -transmissions is about
eighty per cent. direct transmissions from
father to son, and vice versa, being much
less frequent.
A new method of utilizing the power
of running streams has been devised by
VI. Tarn, Russian engineer. His APP
paratus consists of an endless cable car
rying a series of canvas cones which open
and shut like an umbrella. The cable
passes over a double drum on board of
ponton, and at the other end, over pull
ley suspended from buoy. On the lower
part of the rope the cones are opened and
forced forward by the current of water,
thus setting in motion a shaft or drum.