The Forest Republican. [volume] (Tionesta, Pa.) 1869-1952, 1882-08-16
SCIENTIFIC NOTES.

Seasoned wood, we'll saturated with
oil when put together, will not shrink in
the driest weather.
A Russian paper re- ports that Ger
man has succeeded in producing petro-
leum in a solid form.
At the distance Of Neptune the solar
attraction is 900 times less than at the
distance of the earth.
The temperature required for kind.
ling matches varies from 100 degrees to
160 degrees Fahrenheit.
Sap is water with sugary, saline,
slbuminous, mucilaginous and gummy
matters dissolved in it.
The microphone has been successfully
used in studying the noises of volcanic
.ruptions and earthquakes.
Tt is said that there are upward of
3, 900 steam plowing machines now en-
ployed in England and Scotland.
Steam at ordinary pressure, when
sent into saline solutions, raises their
temperature considerably above its
own.
An estimate of the quantity of sedi-
ment carried down by Chinese rivers
indicates that if the deposit continues
at the pl esent rate the Yellow sea will
be converted into dry land in $4,000
years.
MN. Grehaur and Quiquand have de-
termined by series OF interesting ex.
periments that the total weight of blood
In the system of live mammal is be.
tween one-twelftb and one-thirteenth OF
the body weight.
A process for making gum from At.
lantic and Pacific alg@ has recently
been devised from France. The result.
ing product is said to be useful in Ithe
arts, especially in the manufacture Of
Gather substitute.
After cruise of few months in the
South Pacific, French man-of.war was
recently found to have specimens of
living coral growing upon her hull.
This interesting discovery has thrown
come light on the question of the
rapidity of growth Of corals. The evil
dence tends to show that the vessel on
passing reef of the Gambler Islands,
against which it rubbed, had picked up
a young fungia, which adhered to the
sheathing of the ship, and grew to the
size and weight it had when observed,
diameter of nine inches, and q weight
of two and half pounds, in nine
weeks.
Chronic poisoning by arsenic has re-
ceived the experimental attention of
Doctors Caillot de Poncy and Livon,
and the results of their observations
may be of value to certain ladies and
not few medical practitioners, Small
doses were given to cats at intervals
Under the influence of the arsenic they
were able to take more than the normal
quantity of food. For time they in
creased in weight, and presented every
outward evidence Of good health. By
and-bye q change occurred. The cats
had diarrhea; they lost appetite; they
became languid, and they died in an
an@mic and lean condition.
The heaviest brain ever weighed in
this country was taken from the skull
o James 81. Madden, who died recently
in Leadville. The doctor who attended
him during his last sickness had OBJ
served the immense frontal and lateral
development OF his head, and deter
mined to weigh the brain, but his as
tonisbment was great when it brought
down the scales at 624 ounces. Ouvier's
brain weighed 64A ouuces-considerably
surprising all other records-but the
brains of Napoleon, ARassiz and Web
ster, though phenomenally heavy, were
much lighter than Madden's. It is an
interesting fact that Mad len was not q
naturalist, soldier ora statesman, but
| a gambler