The Bossier banner. [volume] (Bellevue, Bossier Parish, La.) 1859-1952, 1888-07-19
SCIENCE AND INDUSTRY.

The consumption of clean wool in
Europe and North America is estimated
at about two and one-half pounds per
head of population.
A new material called 'leatherine"
is an English manufacture. 1t can be
sold at five or six cents pound. is said
to be as tough As leather and is de-
signed for packing and bagging.
The heads of the Cambridge stu
dents have been measured. showing
that the average brain capacity of
First Glass man is 244 Sc cubic inches.
The capacity of the ordinary pass mans
head measures 237. SO cubic inches.
DIR. Juneman, an Austrian chemist,
has invented the most destructive fluid
known to man. This fluid, when
brought into contact with the air. after
the explosion of shell in which it is
held, becomes gas, which destroys all
living things within its reach, melts
metals and sets every thing inflamma-
BILE on fire.
Oil of peppermint in vapor diluted
sven to one part in 100000 will kill
cockroaches in an hour, they dying
in convulsions. One drop of the oil
placed under q jar coverings a culti-
vation of cholera bacilli will kill both
bacilli and spores in forty-eight hours.
1t is also regarded as among the best
surgical antisepics, and of great value
In phthisis aud diphtheria.
Claus Spreckels, the "ex-sugar-
king'' of the Sandwich Islands, who is
now giving his attention to the en-
couragement of beet-sugar culture in
Northern California, says that the beet-
sugar industry can be established in
almost every State in the Union, and
that it will give net profit of from
fifty to seventy-five dollars IN acre to
the farmers.
Late observers have found that the
temperature of wire conveying elec-
trio currents varies with the air-pres-
sures surrounding it. A wire which
remained dull at ordinary atmospheric
pressure became ineandescent in a
moderate vacuum, while, on the other
hand, current which would fuse q
wire at ordinary pressure will scarcely
redden it if the pressure is sufficiently
increased.
I'm a lecture recently given in Lon
don on "Idcal Food" by Fellow Of
the Royal Society, it was stated that
there are four prime essentials in food;
first, water, and plenty of it, in order
to render other foods soluble and nutri-
tious; second, specific kind of food to
burn-something that would undergo
combustion in the body, and keep up
the animal heat; third food that builds
builds up the tissues and sof. struct-
ures of the body; fourth, food that
would build up the harder structures
Of the body. the bones, etc.
The cost of the f1esh-forming ma
terial in oysters Is very high. When
they are 25 cents quart, the protein
that is contained in them costs 81. 68 q
pound, while the cost of protein in
milk, at seven cents quart is 53 cents
pound; in salt Goldfish, 43 cents; ir
mackerel, 70; in wheat flour, II, ant
in beef from IS cents to $1.06. There
fore oysters are classed as delicacies
rather than as staple food. But the
demand for these delicacies is steadily
increasing, and under the efforts of the
Shellfish Commissioner of New Yorl
the supply of oysters will soon enor
muusly Increase within the waters con
trolled by the State. Good House
keeping.
A Photographic journal suggest
that the supposed yellow color notice
able In platinotype prints, and re
Gently attributed by some authoritie
to the action Of sulphuretted hydrogen
on the iron salts, is not exactly SO, a
was recently proved by series of ex
periments, where the print was held il
strong sulphuretted hydrogen gas AM
was not in the least affected. The rea
cause was the turning of the paper it
self. which gave the yellow appearance
to the whites of the picture. BY i'm
nersing the discolored print in a bat
of weak chlorine water. or weal
acidified solution Of bleaching powder
the yellow tint is at once removed
bringing the print back to its origina
vigor.
Trouble in the Family.