The Ohio Democrat. (Logan, O. [Ohio]) 1886-1906, 1892-11-26
SCIENCE AND INDUSTRY.


In 1860 our product OF hardwarc
was valued at $3.50, ,000,O ,OoOi in 1888 ut
e970, 900, 900. The annual addition 10 the
output was $4,000, 900 n year between
lS40 and 1860, and 5000, 900 year be-
tween 1860 and 1883. eDis-
patch.
During last year nearly six millions
of skins were imported into England. OF
Australian opossums there were 2,254,-
GOO; of muskrat, 1,396,00O skunk, 5b4,-
600; raccoon, $40, 100; fur seals, 1875, 400;
bear, 10, roo; beaver, 11,600; chinchilla,
7,700, and otter, 7,s00.-N o. Times
Democrat
The blue color Of the sky is proba-
bly, merely the color of the air, seen
through q length of about forty-bve
miles 1t has been observed by those
| who have ascended about five miles
above the earth's surface that the sky
appears of 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 be
| gratified by the intelligence that Prof.
| Barnard's discovery at the Lick observ"
atory of Jupiter's fifth satellite, which
was announced last winter, has been
confirmed by the observation at Prince
ton. Prof Young, of Princeton, tele-
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. Barnards oo-
servations, but their confirmation by
other experienced observers is a salts
faction.-N. Y. Herald.
DR. Daremberg, the official investi-
gator in the French capital, gives
simple safeguard against the infection
of cholera. A solution of seven and q
half grains of citric acid to quart of
water will, he says, absolutely destroy
the bacillus of cholera, and if the
strength of the solution is raised to
fourteen grains to the quart it will also
kill the bacillus of typhoid. Nothing
could be simpler than this, for citric
acid and sugar in water make q deli
cious and quite wholesome lemonade,
and the strength prescribed would
hardly do more than make the water
| tCll W Ullc bdSJS'
Several manufacturers in Europe
are using aluminium in the construc-
tion of bicycles, says Iron. The alum
inium is alloyed with a small percent
age of titanium, which is said to in
crease the strength Of the aluminium
very considerably. The following are
given as the results of tests of the alloy
and metal used for this purpose: Ten
sile strength of aluminium $4,000 lbs.
per square inch; titanium alloy 7S,500
lbs. The tensile strength of the, alloy
is very great if these figures are correct.
1t is greater than that of wrought iron
and steel (4S,OO to 67, 900 lbs but it is
not so great as steel wire, which has a
tensile strength of nearly 100000 lbs.
per square inch.
Professor Dewar was able, in a lee
ture on chemistry in London lately, to
produce liquid oxygen in the presence
of the audience literally by pints, and
to pass liquid air about the room in
claret glasses Oxygen liquefies at
about $50 degrees below zero, and air at
943 degrees below zero. If the earth
were reduced to temperature Of $50
degrees below zero, it would be COW
cred with sea of liquid air thirty y-fve
feet deep Professor Dewar's process
of liquefyipg oxygen and nitrogen was
with hundred pounds of liquid ethy-
lene and fifty pounds of nitrous oxide,
with the aid of two air pumps and two
compressors driven by steam.
The whole solar system, astrono-
mers say, is strewn with particles of
| l..
bodies known as meteoroids, chase one
another about the sun at intervals of a
few miles. Usually when these meteor
oids encounter the earth's atmosphere
they break into small fragments and
fall harmlessly tie the ground. 1t is
thought that 600 or 700 of these meteoric
stones reach the surface of the earth
unbrollen in the course of year. while
the number of small particles which
fall has been estimated at 1000, 900 a
day. If the air did not act as cushion
no casualty would be more common than
being hit by meteorite.
"A mixture of rye flour and peanuts
has been recently used by the German
health authorities in bread making. 1t
was discovered that the refuse left after
| Vho oll udS pcen eAGrdCIeu from peanuts
contains 80 per cent of albuminous
matter. Such being the case, bread
made with an admiXture of peanuts or
peanut refuse would certainly be highly
nutritious, inasmuch as the nutritive
element of any kind of bread is mainly
albuminous. Wheat and rye hours have
only about II or 10 per cent. of albumi-
nous matter in them. When oil has
been extracted by pressure or otherwise
from vegetable substance, the residue
is called ''oil cake" All oil cakes are
largely albuminous Flaxseed oil cake
contains more than 40 per cent. of such
elements, and the oil cake of cottonseed
is about the same
Doing Things Easily.
"Do sit down." said the wise mother
of n family to the new and ami hitious