Iron County register. [volume] (Ironton, Iron County, Mo.) 1867-1965, 1882-03-30
SCIENCE AND INDUSTRY.

Exhaust steam should not be dis
charged into brick chimney; the steam
will disintegrate the mortar, and the
chimney be injured.
The great Sibley Cotton Factory at
Augusta, Ga, the cost of which with It's
machinery was over 100000, was
completed recently and went into regu-
lar operation, giving employment to
several hundred hands. 1t is one of the
finest factories in the country.
Inventions which meet human
wants are now readily adopted in the
most unexpected quarters. The tele-
phone has been put into use in Russian
Turkestan, where Samarkand can talk
at moments notice to Katty-Kourgan.
And yet it is only a few years since that
instrument received respectful attention
in civilized countries.
Herr Karl Gehmia, of Berne, after
a series of experiments extending over
several years, has succeeded in producing
artificial mother-of- pearl, indistinguish-
able in every respect from the natural
article. 1t can be nodded in any shape,
produced in any color, is impervious to
heat and cold, and its price will be
much less than the ordinary mother~of-
pearl.
-Adiutant-Major Gaumet, of the
Twenty-seventh Regiment of France,
has patented an instrument, which he
calls 'stelelogue,' for signaling pur-
poses. The signals consist of the alpha
bet and figures silvcred on dead black
ground, and these are Illuminated at
night by lamps with strong refiectors
A powerful telescope is the receiving in
fn or
of two and a half miles, the whole ap-
paratus need not weigh more than five
pounds.
There are nearly 5000 species of
beetles known to science in North Amer
ca, and this is but one of seven orders
of insects. On account of the depreda-
tions of single species out of this 5000,
plum culture has been practically aban-
doned in many portions of the country
where the best means of fighting the
pest are as yet unknown. Where the
remedies are understood and faithfully
employed, fully one-fourth to one-half
of the damage is averted. Does not this
speak volumes for the science of entO-
mology?-N. Y. Tribune.
The cultivation of the cassava root
is attracting the attention of California
lbI HlCIS. IL 10 o1lSA W NC Ll4DiC PiouohUAC
to grow cassava than corn. Cassava
flourishes in moist, bottom land. 1t
is grown for the purpose of furnishing
glucose, substance now extensively
used in the manufacture of beer and as
q substance for honey and sugar. The
figures given are as follows: Corn
yields so pounds of glucose to the bush
ell cassava yields about the same
amount per bushel. But corn crop
ranges from 80 to 60 bushels. to the
acre, while a cassava crop is often 20
tons. So the yield of glucose from an
acre of cassava would. be nearly ten
times greater than from an acre of corn.
The quality is superior.
Experiments made at different times
and places with reference to the spon-
famous combustion of oily materials
concerning which so many opinions have
been put forth-appear to demonstrate
the fact that small quantities really take
fire quicker than large masses. 1t is
also ascertained that sponge and wood
dust saturated with oils and turpentine
do not burn, while combustion follows
in about thirty minutes in wadding
that has been soaked in strong oil var
nish, but not until q period of nearly
fourteen hours in mass of cleansed
cotton waste which has been saturated
with the same materially. Y. San.