The Colfax chronicle. [volume] (Colfax, Grant Parish, La.) 1877-1981, 1888-09-29
SCIENCE AND INDUSTRY.

0CsSNSc AMI sNOOS'uss
-Iti Is said that some clothespin box
packers can pack 1900 day. They
are paid one cent for packing box
of four gross. At this rate they make
i've dollars a day.
Iron is a constituent of most solids
and is found in food crops. Oats, bar
ley and rice contain much more iron
than wheat, corn or beans. Nearly
four per cent of the ash of the oat
grain is iron.
Prof. Peel, of St. Petersburg, has
found fifty per cent ofpetroleum In the
cod liver oil sold by one druggist, the
adulterated article having the taste,
smell and appearance of the genuine.
Mineral Oil is also frequently found in
olive oil.
"A very dense graphite carbon for
incandescent electric lighting is now
produced by passing the electric dis
charges from an induction coil between
two electrodes inclosed in a vessel con-
tanning Illuminating gas; the graphite
forms at the negative electrode. and
gradually elongates toward the posi-
tive pole.
"A new process for preparing beans
for food has been devised. The beans
are reduced to -four, which is boiled
until it attains a certain consistency,
and the name of ''curd" is given to it,
The article Is simple, cheap and very
nutritious, and is much relished by the
Chinese. 1t has large percentage of
caseine, and is a good substitute for
milk.
Many experiments in burning brick
with oil in place of wood are being
made by manufacturers Of brick along
the Hudson river. II the new method
proves to be practical it is estimated
that there will be a saving of forty pei
cent. effected. The main difficulty ii
in the ssdrying off, process. One re
suit OF using oil instead of wood will b
the preservation of thousands of acres
of forests in the counties affected.
both in China and Japan soapston'
has long been largely used for protect
ing structures built of soft stone ant
other materials specially liable to at
mosphere influences. 1t has been foun'
that powdered soapstone in the form
paint has preserved obelisks formed o
stone for hundreds of years, which
would. unprotected, have long ag
crumbled away. For the inside paint
ing of steel and iron ships it is foun'
to be excellent. 1t has no anti-foulinl
quality. but is anti-corrosive.
AT recent meeting of the Acad
envy of Sciences, in Paris, M. Chevreu
communicated, In the name OF M
Arnaud. Curator at the Museum
Natural History, a very interestin
note on the toxic substance which tn
Comalis employ to poison their arrow
This substance is the 'Ouabajo' Woo
and from this wood M. Arnaud has e.
tracted crystalline matter endowe
with terrible venomous properties.
simultaneous and intravenous inje
tions three one-hundredths of a graz
of the poison suffices to kill do
Death rapidly occurs by an arrest
the hearts action.
M. Perrotin. French astronome
has discovered that the planet Mar
besides being inhabited, has numb
Of gigantic canals connecting her Sc
and, what is more remarkable, tn
some of the canals are still in cour
of construction. The theory OF Il
mense canals in Mars-from eighte
hundred to two thousand miles
length and from twenty to fifty mil
in width-has already been put ft
ward, but positive knowledge on &
subject has been lacking. Ii the
canals be the work of artifice on t
part Of the inhabitants OF the plan
as M. Perrotin states, then it will
reasonable to believe that 1t is peopl
with enormous giants.