The Forest Republican. [volume] (Tionesta, Pa.) 1869-1952, 1892-08-17
SCIENTIFIC AND INDUSTRIAL.


making cast or rolled-plate glass.
1t is proposed attempting to stamp out
tuberculosis in cattle in Denmark by
vaccination.
A gas engine has been made in Eng
land that runs at the rate of $40 revolu-
tions a minute.
The results obtained from using sui
phate of copper dressing to prevent the
growth Of the fungus on potatoes are
decidedly satisfactory.
The more rapidly an animal is fattened
the less quantity of food is necessary to
sustain its vitality, so that liberal or
abundant feeding is the most econom-
ical.
The oil fuel used in copper-smelting
works at Kedabeg in the Caucasus is
pumped to an elevation of 32S feet
through fifteen miles of four-inch steel
pipe.
Above the length OF nineteen or tweu-
.y feet, snakes in the PHILIPPINE Islands
increase greatly in bulk for every foot Of
length, so that a snake nineteen feet long
looks small beside one twenty two feet
long.
In order to keep sea porgies through
the ummer, the fishermen of Rhode
Island have nets so arranged that the
passing schools are led up into saltwater
ponds and the channels connecting with
the ocean are closed.
In one of the Comstock mines new
water-wheel is to be placed which is tc
run 1850 revolutions a minute, and have
a speed at its periphery Of 1O,SO5 feet
per minute. A greater head of water
than has ever before been applied to a
wheel will be used.
Plans are being examined for the con-
struction of n railroad across the mair
cham of the Caucasus Mountains. The
line will have q length of 100 miles, and
will present great engineering difficulties
There are to be two tunnels, one -four
and third and the other six and three
quarters miles long.
Pear growers are complaining of the
depredations of small suctorial insect,
somewhat resembling in size and in its
transparent, steep-sloping wings the typ
ical plant louise, but it is readily dis
tinguished from that in its being q
Jumping insect, whence it has receives
the name Psylla, meaning in Greek {
flee.
The mysterious subject of hypnotic
influence has been agltating society il
Calcutta, India. A young Government
clerk made several attempts recently tC
get married to the girl of his choice, bu
each time he was mysteriously overcom
at the altar and thrown into trance o
stupor. He has made no less than 81!
attempts, failing each time.
Paper manufacture is one of the lead
ing industries of Corea. Besides its us
for writing paper, it is employed in
great diversity of ways, such as string
and in the making of lanterns, hats
shoe soles, coats and boxes. 1t is mad
from the bush of the mulberry order
which is indigenous, growing in man
parts of the island, but thriving best i
the moist, warm climate of the South.
In walking to the Central Park, Ne,
York City, one day Boston naturalis
was surprised by some OF the trees
shrubs and flowers ne saw there. II
says he found even sugar naples, Norwa
naples and swamp naples. He fount
moss pinks, Asiatic magnolias, lilacs
the forsythia, the cornelian cherry, an,
other charming things that are familia
to New Workers who stroll through tn
park.
Who would think that science coulC
devise an apparatus or instrument 70
counting the number of dust notes tina
dance in bar of sunlight? No ont
would imagine that such an unheard o.
feat could be carried out with any de
gree of accuracy, but, if we are to believe
official reports, that and much more has
recently been accomplished by the mi
croscopists. At the Ben Nevis Observa
tory, Scotland, an attempt has been made
to determine the relative purity of the
atmosphere.