The Indiana State sentinel. [volume] (Indianapolis) 1868-1895, 1882-04-26
CURIOUS. USEFUL AND SCIENTIFIC.

Thirty-three per cent. of forest is consid-
cred the best proportion for the most Bone
fetal effect on climate.
It is estimated that the total length of
submarine cables in the world is 81, 100
miles having money value of about
5000 5000
In forest beds near the delta OF the Mis-
sissippi are found cypress trunks twenty-five
feet in diameter, and one containing 500
annual rings.
A national exhibition of mining, metal
lurgy, ceramics and glass manufacture is to
be held at Madrid, under the auspices of the
Spanish Government, in May.
DR.. laval mas recently declared in COM
municahon that the electric light, in the
degree of division to which it has been
brought is absolutely harmless, and without
danger to the sight.
An important and hitherto unknown
treatise by Copernicus on the movements
of the celestial bodies has been discovered
in the archives of the Astronomical 0bser-
vstory at Stockholm.
The Scientific American mentions re-
Gently patented device for sxtinguishing
kerosene lamps, which consists of shut-off
for the air supply, the action becoming au-
temstic if the lamp is overturned.
In seeking for substance which would
destroy the microscope animals in water
without injuring it for drinking purposes
DR.. LangIeldt found that citric acid Zone
half gramme TO every litre of the water)
killed al the living organism, except cy-
clopes and those with thick epidemis, with
in two minutes
A matchmaker at Vouvry, in Switzerland,
claims to have made watch which win run
for years without being winding up. The
Nature says that box containing two OF
the instruments intrusted TO the municipal
authorities on January 10, 1869, has just
been opened and the watches found going.
Paper has gone into use into some of the
restaurants at Berlin as plates for dry or
semi dry articles of food. There is no rea-
son why cheap paper cups properly glazsd
should not be employed at railrord stations,
so that passengers could take cup of coffee
along with them instead Of hastily drink
ing it at a lunch counter.
Professor Bizzozero, of Turin, has dis
covered q new and important constituent of
the blood, which he calls "blutpattchen."
They are lenticular bodies aggregated
around the colorless corpusules. 1t Is
enough to make man sit down and cry
with modification to think that he has to 90
around with things like that in his blood,
and no way OF getting them out.
It is estimated that England alone con-
sumes 100000 pounds of ivory year.
This entails the death Of 10000 elephants.
and il is thought that not fewer than 10000
die annually. They breed slowly in the
jungle and not at all when in confinement,
even in their own country. The srecent
cases Of birth in this country are extraordi-
nary exceptions to the general rule. The
London Spectator contemplates that Jum-
DO, if he a.tsins fall age-some $50 years
may be the last of his species; but it re-
mains to be seen whether, as the births in
"Zoos" have begun the animals may not in
grease and multiply.
The wonder of Paris, if the correspon-
dent know anything about it, is the boy
with the telescope eye. One eye is as large
as silver dollar and other as small as a
French pea. Up to few months ago this
large eye was Of no use. But after an oper-
alton upon il IN astonishing change occurred.
The eye became telescope in its range, and
the boy could expand or contract the pupil
at will. At night he could see the rings
and moons of Jupiter and the newly dis
covered satellites of Mars. Then it was
discovered that the smaller eye was micro
scopic, q drop of water appearing to him
through il as world of lite. The oculists,
microscopists, and astronomers of Paris are
said to be in a state of great excitement over
the boy.