Warren sheaf. [volume] (Warren, Marshall County, Minn.) 1880-current, 1892-04-28
SCIENCE AND INDUSTRY.

The iron mines of this country pro
duced nearly 100000 tons last year
The capital invested is about s11O, OOO,
900.
1T is believed that shooting stars art
small, solid bodies, revolving round
the sun. AS they are travelling in q
contrary direction to the earth the
velocity with which they enter our at
mosphere is very great, on an average
about thirty miles second.
The total value of the exports from
the United States during the twelve
months which ended January 81 last
was s9ss,01s,053, against 1864, 800, 9O1
during the preceding twelve months
The total value of our imports in the
twelve months which ended January 81
was SS2S, 1877, 4S4, against 1922, 475, 451
during the twelve months preceding.
For nearly half a century Mt Ever.
est, or Gaurisacker (as it is known in
Europe and Asia) was thought to be the
apex of the world. In 1881, however
Capt. Lawson, sent out by the British
Geographical society, discovered peak
on the Isle of Papna, which is 80, 76s
feet in height. He named it Mt. Her.
culeS. ..
AT Grenoble, France, 200, 900 dozen
pairs of gloves are manufactured an
nually. This represents value of 81,
200, 900: and gives employment to %, OOO
worlpeople of both sexes. There are
1000 men and $1,000 women residing in
a rayon of thirty-eight miles around
Grenoble who live by this work.
The mineral output of Colorado for
1891 foots up $33, 54s, 1884, an increase
over 1890 of So ,66s, 200. The average price
of silver for 1890 was $1.O41s, while for
1891 it was only 1856. Colorado now
has 4,57s, S66 acres of land subject to ir-
rigation by bitches and canals, the
number of miles of which amount to
1896. Great confidence is felt in Col
orado for a good yield this year.
Mr.. Bent, an English archaologist.
is now in Lisbon, and expects from al
examination of the archives there to
trace the remarkable people who cen-
turtles ago worked the gold mines of
Mashonaland. At the Zimbabye ruins
MIR. Bent found a spear gilded over, and
at Mazoe workings a ring of very an
tique design, which is now in the pos
session of Hon. Mr.. Rhodes.
"A German chemist has patented a
process for making glass printing plates
for photographic purposes. The method
pursued consists in coating the glass
with bichromatized gelatine and then
transferring the Photographic print to
the sensitive surface. After a metallic
powder is busted over the parts it is ex-
posed to the sunlight, and the exposed
parts of the gelatine washed away with
turpentine. The glass can then be
deeply etched with houric acid.
Prof. Nicholas Tesla has already sue
,eeded in producing in room an cleo
trostatic field, into which, if a glass
tube exhausted Of air is carried, the
tube will glow with light and illuminate
the room like lamp. 1t now appears,
as Prof. Crool>es says, that "a true flame
can be produced without chemical aid
"a flame which yields light and heat
without the consumption of material
and without any chemical process. 81
Those who have studied the chemistry
Of the candle will appreciate what this
means.
A number of plants have the sim
gular power of living long time with
out water, and without any connection
with the earth. DIR. Torrey found a
root with some signs of life in herb
arium long after it was collected, and
hence we have Le1cisiA redirird. The
Rose of Jericho is plant not distantly
related to the wild carrot, which draws
itself out of the ground and rolls into a
ball, driven by the winds and then
spreads, roots and grows under the first
rainfall. In Mexico, Arizona and Texas
is a club moss (Selaginella lepidophylla),
which also dries into ball, and is sold
in curio stores as the Resurrection
plant" 1t develops in earth or water
after six months drying, just as well
as if nothing had happened.