The weekly intelligencer. [volume] (Lexington, Mo.) 1891-1901, 1891-11-14
SCIENCE AND INDUSTRY.

Tho production of nOlasseS in Louis
lana is so great that it does not pay to
buy barrels to ship it. Arrangements
are now being made to burn it, mixed
with some other substance, and thus
save Il great amount of coa
In Great britain, where dews are
heavy, it is estimated that the whole
moun deposited in a year would be
equal to Il depth of several inches of
water. In some tropical regions dew
is deposited SO fast as to be equal to Il
light rain.
Official reports of the great manu-
featuring centers of Russia show that
2l.Sl0 persons are employed in the
various factories, and of this number
only G.S per cent. are able to read and
write, 3d. per cent. being illiterate.
Onc-third of the educated laborers are
foreigners.
"A handful of raw pig on. weighing
about five pounds, is worth five cents.
1t would make about 90 table knife
blades, worth SO: converted into steel
watch springs, there would be about
10, 300 of these little coils, which, at
the rate of Sl.T5 Il dozen. would be
valued at $40. 90. So.
"A deposit of what is known as
fossil flour" has been recently diScov-
cred in Maine which will resist the
action of acids, alkalics and oils and is
a remarkable nOn-conductor of heat.
1t will be used in the manufacture of
rubber goods. 1t contains ninety-fiye
per cent. of pure silica, and when mined
it comes out as a fine powder.
Mayer has calculated that, if the
motion of the earth were suddenly ar
rested, the temperature produced would
be sufficient to melt and even to volatil-
ize it; while if it fell into the sun, as
much heat would be produced as re-
suits from the combustion of 5000
spheres of carbon the size of our globe.
"A good illustration of the expansion
ofthc worlds trade during the past thirty
years is afforded by the production of
petroleum in the United States. In 1859,
"a, 600 gallons We're produced in the
Pennsylvania and New York oil fields,
and in 1890. tsS0. O29, 900 gallons were ex-.
ported from the various states which
now produce the oil.
Limitation gold is a new compound
which was recently discovered and
which puzzles the best jewelers. ia de-
tect. Its weight is that of gold and the
acid tests are the same, except that the
acid boils IL triile when applied to it,
although when it is wiped off no spot is
left. 1t is cheap and it is easily worked
Its chief factor is aluminium composite,
from , to y per cent
The new departure in photography,
as recently applied to telescopes, has
extended our information to a most
wonderful degree already. especially in
the delineation of the moons surface,
and has opened Il wide field for astron-
omers. Many points are clearly shown
on the negative that can not be seen
with he human eye even when using
the powerful Lick telescope.
The effect of adding aluminium to
steel ingots has recently been discussed
by the American Institute of Mining
Engineers, and, according to.Professor
Arnold, its effect in rendering steel
castings perfectly sound is very marked.
1t is twenty times as powerful as sill
con, and the resulting steel is tougher.
By using it, manganese can be dis
carded, and n considerable saving in
time and fuel effected.
r