The Red Cloud chief., 1892-11-25
SCIENCE AND INDUSTRY.

I'm 1850 product of hardware
wan valued at 600. 900, 900; In 1883 AZ
e9yO, 900, 900. The annual addition TO tho
output was %, 900. 900 q year between
1870 and 1850, and s25, 600. 900 n year be-
tween 1900 and 1sss.-Pittsburgh Dis
patch.
During last year nearly six millions
Of skins were imported into England. OF
Australian opossums there were 2,254,-
900; Of muskrat, 1890, 900; skunk, 554,-
600; raccoon, $40, 100; fur seals, 1876, 700;
bear, IL, roo; beaver, II, ZOO; chinchilla,
7,7oo. and otter, 1900. IN. q. Times
Democrat
The blue color Of the sky IL proba-
bly, merely the color Of the mir, sec
through q length Of about forty-ive
miles. II has been observed by those
who have assembled about Ave miles
above the earth's surface that the sky
appears OF n dark inky hue, owing To
the very small reflection and dispersion
of the light. while the blue color no
longer appears above, but below them.
Similarly, the blue color of distinct hills
Is owing to the same cause.
The astronomical world will bc
gratifed by the intelligence that Prof.
Barnard's discovery mt the Lick obscrv-
atory of Jupiter's fifth satellite, which
was announced last winter, has been
confirmed by the observation Mt Prince
ton. Prof. Young, of Princeton, telc-
graphs that the fifth Jovian moon was
found on two successive nights within
the past week. OF course no one doubted
the correctness Of Prof. Barnard's OBJ
| enrvnttAnn lint thnt~ condemnation 1vx
other experienced observers Ii n salts
faction. IN. Y. Herald.
DIR Darcmbcrg, tho official invcsti-
gator In the French capital, gives n
simple safeguard against the infection
of cholera. A solution of seven and =
half grains OF citric acid TO n quart Of
water will, he says, absolutely destroy
the bacillus Of cholera, and II tho
strength of the solution IL raised 70
fourteen grains to the quart Il will also
kill the bacillus Of typhoid. Nothing
could DC simpler than this, for citrio
acid and sugar In water mike u deli
cious and quite wholesome Lemonade,
and the strength prescribed would
hardly do more than make the water
slightly acid to the taste.
Several manufacturers in Europe
arc using aluminium In the construc-
ton Of bicycles, says Iron. The alum
ininm Is alleged with n small percent
age of titanium, which IL said to In
crease the strength of the aluminium
very considerably. The follow ing nre
given as the results Of tests of the alloy
and metal used for this purpose: Ton.
sile strength of aluminium -, 300 lbs.
per square inch; titanium alloy 7s,5OO
lbs. Tho tensile strength Of the alloy
is very great II these figures are correct.
1t Is greater than that Of wrought iron
and steel las, 900 to 81, 200 lbs but IL IL
not 30 great rs steel wire, which has .
tensile strength Of nearly 100000 lba.
per square inch.
Professor Dcwar WINS able, In q leo
turc on chemistry In London lately, 70
produce liquid oxygen In the presence
Of the audience literally by pints, and
10 pass liquid air about the room In
claret glasses Oxygen liqueies -
about $50 degrees below zero, and air 1t
348 degrees below zero. II tho earth
were reduced to q temperature u $50
degrees below zero, it would be GOV.
cred with o sea of liquid air thirty-ivo
feet deep Professor Dewar's process
Of liquefying oxygen and nitrogen was
with u hundred pounds OF liquid ethy-
lene and fairgrounds Of nitrous oxide.
with the aid of two air pumps and two
compressors driven by steam.
The whole solar system, astrono-
mers say, Is strcwn with particles Of
matter known as stardust, while larger
bodies, known as meteoroids. chase one
another about the sun Mt intervals Of .
few miles. Usually when these meteor.
ODDS encounter the earth's atmosphere
they break into small fragments and
fall harmlessly To the ground. II In
thought that 900 or 700 Of these m~eteoric
stones reach the surface of the earth
unbroken In tho course of u year, while
the number Of small PARTICLES which
fall has been estimated at 1000. 900
day. II the air did not act rs q cushion
no casualty would be more common than
being hit by a meteorite.
"A mixture Of rye -four and peanuts
has been recently used by the German
health authorities In bread making. II
was discovered that the refuse left utter
the oil has been extracted from peanuts
contains 80 per cent of albuminous
matter. Such being the case, bread
made with an admixture of peanuts o
peanut refuse would certainly be highly
nutritious, inasmuch as the nutritive
element Of any kind Of bread II mainly
albuminous. Wheat and rye lours have
only about II or ~ per cent OF albums
nous matter In them. When oil has
been extracted by pressure or otherwise
from u vegetable sn distance, the residue
Is called ''oil cake" All oil cakes are
largely aibuminous. Flaxseed oil cake
contains more than 40 per cent. of such
elements, and the oil cake OF ~cottonseed
Is about the same
Dolng Thtngs Easily.