The Bamberg herald. [volume] (Bamberg, S.C.) 1891-1972, 1902-05-01
SCIENCE AND INDUSTRY.

Adrenalin, the newly-discovered ac-
tive principle of the suprarenal glands.
will not become common drug.
Every pound made requires the glands
of $4,000 cattle, each single gland
weighing but two-ffths of an ounce
and yielding but one quarter of grain
of adrenalin. The new product has
promised much as astringent, opium
antidote, etc.
Experimental proof has lately been
obtained of the repulsive force OF light,
which is deducible from MaxWelfs
electromagnetic theory of light. The
value obtained from the experiments
indicates the probable correctness OF
that deduced from theory. This result
of the experiments is not merely con-
firmatory of Maxwells theory, .Sut,
what is Of especial interest to astrono-
mers, it supports Arrhenius' theory OF
comets tails. namely, that they consist
of finely divided matter emitted from
the head of the comet and driven from
it by the force of the solar light.
In a lecture given recently before the
Royal Geographical Society Dr.. Waugh
an Cornish said that during storms
waves with periods of from eight to II
seconds were observed, with lengths
from 32S feet to G20 feet. A ten-second
wave was 512 feet long. The sides OF
these waves had an average slope Oh
not less than / in 10. "A set Of such
waves would have height of % feet,
but there was generally "swelp' run
ming at the same time, which increased
the total rise and fall of the water.
1t made the waves irregular, and caus-
ed waves of much larger size than 20
feet to recur not infrequently.
Coloring glass by penetration, as M.
Leon Lemal calls his interesting pro-
cess, offers varied and attractive re-
suits. Silver salt in small quantity,
but varying with the intensity of color
desired, is placed upon the surface OF
the glass, which is then heated to SUI
degrees or $50 degrees, baking for five
minutes, giving a yellow stain to a
depth of 150th of an inch, which is
increased to 18th of an inch in eigh-
teen hours. The yellow shows beau-
tiful greenish or blush flourescence in
reflected light. Lace patterns can be
transferred to glass by this method,
colored monograms may be obtained.
and even 'collodion negatives may
be printed in various colors. Silver
and copper give red, white gold and
iron salts have been used for other
effects.
A remarkable instance of a battery
of accumulators working under water
was recently given at the municipal
electric plant in Munich. The station
is situated on an island in the 1sar,
and during the flood the water covered
the batteries. According to the Scien-
tiflc American, one OF the batteries
which ran the car lines was completely
cut out, and it was thought that the
other, which furnished light, would
have to be treated in the same way
The flywneels of the engines were hall
in the water Nevertheless. as 1t was
almost indispensable to light at least
the principal streets of the city, it
was decided to try to operate the sub
merged battery. The attempt was sue
eessful, and the battery, which had
been constructed to give G000 ampere-
hours with a 600-ampere discharge,
was able to furnish 1000 ampere-hours
during the night. The remainder was
lost in discharges in the water.