The Carbon advocate. [volume] (Lehighton, Pa.) 1872-1924, 1882-07-15
For the CARBON ADVOCATED
SCIENTIFIC MISCELLANY,

Evidence that the Dead Sea was once
a part of the ocean has been presented to
The Paris Academy Of Sciences.
The specific gravity of liquid steel
has recently been determined by Herr
AleSjeff to be sos. 1t is therefore con-
siderably heavier than solid steel which
has specific gravity of 81 to 7.s4.
p The electric light is reported to have
been tried III France as lure for sea fish.
The brilliant glare Of submerged lamp
is found to attract great numbers of fish
es, which may be readily captured in
nets
The value for agricultural purposes
of the blood of the 43 600 600 animals
yearly slaughtered in France is estimated
by French writer to be 81 600 000srancs
Various methods have been proposed for
treating the blood SO as to prevent nuis-
auce.
The strength of hoisting cables for
mines has been Investigated by French
commission. Greater care is found to be
necessary with metallic cables thai with
those of textile materials, on account Of
liability to cnrrosion, and preference is
given to the latter for most MINIS.
By an improved method, the quanti-
ty of blood in living mammals has been
ascertained to be between one-twelfth and
one-iLirteenth Of the weight of the body.
Uuder normal conditions this proportion
varies hut little. A healthy man weigh
ing $50 pounds must therefore carry
about twelve pounds of blood
-'lr. A. H. Swinton has endeavored
to show the relation existing between the
appearance of insects and sun.spot cycles,
and gives a tabulated record TO prove
that certain insects are most numerous
during the years Immediately following
a minimum of sun-spots, and vice versa.
II this theory may be applied to all
species, period OF insect scarcity should
now follow the remarkable activity of the
suns surface for some time past.
-Helmuth DruebeIg, Of Berlin, con,
tends that the opposite side of the moon
from the earth may have air ard water,
aud be inhabited. The same side Of the
moon is always turned to the earth, and
the centrifugal force arising from the
moons motion around the earth would
tan1 10 a ro,u e,-oh I,lt ord n,;l 49,
iions Of its substance ss air and water to
tie further side. While the earth's attrac.
ii, n would contribute to keep the heavy
side toward us. As an illustration, u
moistened ball may be swung by cord.
The same side will always be toward the
centre of revolution, and the moisture
will pass TO the outer side.
The motion cf heavy bodies Ike rail-
way trains shake the earth for consider
aLle distances, and observation of such
facts is gradually giving rise to belief
that the force necessary to produce earth
quake shocks has been over-estimated. A
delicate apparatus used by Prof. H. NJ.
Paul showed quite strong vibrations on
The passing of an express train third of
a mile svny, and like effects were OBJ
served even at somewhat greaterdistances.
A perceptible VIBRATION was transmitted
through the ground benever a stone was
struck by the wheels of one-horse ve-
hiele passing at distance of 400 or 500
| feet.
According to paper IRON DR. G. j.
( Ma gw,p, the olangr lr-,s In porli n
! Oi the province oi Canton. Ia China, arc