The Republican. [volume] (Oakland, Md.) 1877-current, 1890-09-19
SCIENCE AND INDUSTRY.

About 1000 species OF insects, on an
average, have been discovered yearly
during the last century,
In some portions of the world at the
time of full moon there is said to be al
tendency toward a dimunition of clouds
Beers, an Austrian sculptor, has
succeeded in discovering a process for
molding marble fluid precisely as bronze
is nodded.
The electric spark has been photo
graphed by means of a special camera,
in which the sensitive plate rotated
$500 times a minute.
One car building company in Penn
sylvania has on hand orders for 30, 900
freight cars. The largest order is for
10, 600 cars.
Col. Zilimboff, of Siberia, claims to
have discovered in ordinary eggs an oil
by which he can greatly increase ths
force of explosives.
Mr.. F. A. Swinden, OF Brownwood,
Tex, has an orchard Of 1000 pecan
trees-the largest orchard of the kind
in tho world. The average yield of
full-grown tree is about fourteen
bushels year, which sells from 81 to 81
a bushel.
The camphor tree flourishes at
Tampa, Fla, and its cultivation is said
to be more profitable than any other
business in the State. Camphor can be
distilled at any season of the year and
the tree is not affected by heat or cold.
1t grows very rapidly. The process of
distillation is very simple.
"A new gas detector, proposed by Mr..
II. n. Warren, is formed by saturat-
ing asbestos yarn with a solution of
platinum oXalate, and then igniting
in platinum crucible. When heated
to eighty degrees Fahrenheit, this pre-
pared yarn becomes incandescent in an
atmosphere containing 0.5 per cent by
volume of coal gas.
The making of wooden shoes is quite
business in New York. Not only is
there big demand for wooden-soled
shoes required by workers in certain
trades, but for the wooden sabOts such
as are seen in pictures of life abroad.
French and German women are the
plllCl pal bu Vi NOOuCH olOtEs ItStl
shoes cost about S1.25 pair They are
mostly worn in the East Side tenement
district.
The question, GLOW is it that tele-
graph lines make musical sound when
there is no perceptible breeze blowing?"
is thus answered by the Scientific
American: "There seems to be particu-
l., c+r Of vi
| that correspond with the natural vibra-
ton period of the wires. A strong wind
out of accord may have little effect,
where a slight wind in accord has a
powerful effect"
The economy of small electric mo-
tors for industrial purposes is shown in
shoe factory in Brockton, Mass. where
for the last year and half a twenty
| five-horse power motor has been run
ming the machinery. This is being re-
placed with three motors of fifteen, ten
and tive-horse power respectively, and
saving of siX-horse power is looked for
from the change. The electric power
company that furnishes the current
agrees to charge less for the current
for the three small motors than it did
for the one large one.-N. y. Sun.
j. w. Fewkes tells in the American
Naturalist that vegetation exists in hot
springs. Tho highest temperature on
record in which it occurs is 200o +.
This indicates that vegetation may have
occurred at much earlier stage of tho
earth's history than has boon generally
supposed. The prevailing form of vege-
tatioa in these heated waters is alge.,
Diatoms also occur, but sparingly. They
have been found in Nevada at temper
AZURE at which the vegetation of hot
springs is most flourishing, but usually
occur in great abundance in the cooled
waters of hot springs.