The Colfax chronicle. [volume] (Colfax, Grant Parish, La.) 1877-1981, 1889-09-21

sscIE9cE AND lNDusTRy.
lit is supposed th9& the steam power
now utilized is almbst equivalent 70
the hand labor Of the whole population
Of the world.
Experiments in welding wire rope
By the electric process show that the
strength Of the finished Welding is
within eighteen per cent OF the normal
strength Of the cable.
Aluminium for dental purposes 10
said to be coming into favor. 1t 10 pro-
iouhced better than rubber and less In
cost than gold. 1t is bright, strong.
'o6offssS. ana as healthy to the gums ~
gold or platinum. II 3f
Recent experiments at the Ear
Hospital in London indicate that stam-
mering y dot nervous defect ouiy.
In operationsl for deafness in severai
cases the patients were cured Of stam-
mering also, and the result is the
opinion that stammering comes from
some defect in the hearing.
IN. Beauregard, an eminent Egypt
ologist, believes that Egypt at the time
Of the Pharaohs exhibited the mixed
condition Of combining the use of flint
implements with acquaintance with the
means Of extracting copper and blend
ing it with other metals.
Why is negroes skull harder and
thicker than white man'sp Herodo.
tus explained it by attributiug it to the
early exposure of African children to
the heat of the sun; and Prof. Virchow,
after his trip up the Nile, sides with
the Greek historian.
Satisfactory tests have been made
Of the new liquid, pyrodene. which
renders wood. textile fabrics, and such
iphammable materials tireproof. The
liquid, which is an English invention, is
made of all colors, 80 as to be used as
substitute for paint. and Is claimed
to render houses entirely ireproof.
Doors are now made Of two thick
paper boards nodded into panels and
glazed together with glue and potash.
and put through heavy rolling pro-
cess. Covered with waterproof coat
ing, they are hung like wooden doors.
and are both beautiful and serviceable.
Investigation has shown that terra
Gotta bricks and blocks best resist the
action Of fire. Next TO these as. fire-
resisting nsterisls como concretes.
For buildjngs Intended to be nre
proof. the best materials are iron work
encased in terra-cctta, with tile or
brick work in roof and floor.
The Psychologists Of Norway have
| pursued researches into the early pop
ulation Of the country - far north as
20 degrees Is minutes. The results
show q large population in prehistoric
times, but one not given to agriculture.
No bronze objects are found. and the
conclusion IL reached that the men Of
the early iron age were the first to
affect them, those of the bronze age
never having reached the northern
parts.
AN interesting fact is that one Of
the greatest problems now perplexing
scientific men-the production of heat
less light-has been already solved by
nature. The light from q luminous
beetle sufacient for reading news
paper-is shown by the spectroscope to
be all of one klnd. and just the kind
for seeing. while The thermopile finds
no evidence Of heat Yet In all our
artificial lights vast quantities Of fuel
are wasted for useless heat.
"A French chemist named Beaumetz
exhibited at q recent meeting of the
Paris Academy of Medicine new
alimentary substance which be names
fromentine. It is obtained from wheat
by the aid of special millstones and is
really the embryo of the wheat reduced
to Hour Ucontains three times more
nitroeenous sub6tance than meat, and
q large prcportie6 q sugar. 4 4
thought lat - may enthusiastically
replaos powdered me6s - . ooncen-
trated food. 1t may be employed for
making soups, and even for making
biscuits. II