St. Landry democrat., 1891-09-19
POPULAR SCIENCE.

"A tull moon fenectS l-oOUUtn part OF
the suns light.
Mr.. Holmes, Of Newcastle on-Tvne,
England, has invented dynamo for
lighting trains.
A standard Of color has become neces-
sary, and is being sought by the London
Society of Arts.
\ fly lays 800 eggs during a summer.
The progeny of a single fly may from
June i to September 30 exceed two mil
lions.
1t has been noticed in France that
those persons engaged in cleaning olt
the apparatus used in refining petroleum
are subject to skin disease resembling
the cancer OF chimney sweepcrs.
Good deodorlzcrs for the sick room:
Coffee pounded in a mortar and roasted
Oh an iron plate; sugar burned on hot
Goals and vinegar boiled with myrrh ana
sprinkled on the floor and furniture
Lieutenant Stafford, United States
Navy, and George 4. D4s3y, OF EIar-
ward, have discovered a mumifiel fam
| lily in an Inca tomb, near Aucon, which
| will be exhibited at the Worlds Fair.
Inventors would find scope for their
talents in devising "a car ventiiAting
system which would draw out the hot
air, supply fresh air, exclude dust and
at the same time be practicable and
economical
Analysis of individual beets indicate
that maturity more than size determines
the sugar contents of the beet. A high
weight of leaves as compared with the
roots was no evidence of higher sugar
content, but rather the reverse
The water of the central basin of the
Mediterranean has been found to be
warmer, denser and richer in dissolved
salts than the western. While white
disk was only visible at forty-three
meters, Photographic plates were affected
at 500 meters.
There are three artesian wells located
almost on a line within running distance
of 1000 feet in Sonoma, Cal, which
yield between 1000, 900 and 5000, 900
gallons Of water every twenty -four
l.
meath the town.
Fresh fish, if in good condition, will
feel firm under pressure OF the finger,
and the smell, though ''ishy," is not
unpleasant. Reject any the flesh of
which feels soft, which has the least OBJ
jectionable odor. The sooner fish is
eaten after it is taken from the water,
the better it will be.
The most brilliantly colorel alloy yet
known has been revealed in recent in
vestigation by Professor Roberts. Austen.
It's composition is about seventy eight
per cent. OF gold and twenty-five of
aluminium. It has rich purple color,
and bright ruby tints are obtained when
light is reflected from one surface of the !
alloy to another. !
The continuous Photographic register
OF earth currents kept at the Greenwich !
(En9land) Observatory recently showed
some unusual disturbances. These soon
became so regular that tae stray currents
were traced to the trains Of the new
electric railway, though
the nearest eartn-plate to the railway
was two and one-half miles distant.
Professor Fernald, the entomolo9ist OF
the Massachusetts State Agricultural
College, in recent visit to Maiden and
Arlington, discovered the eggs of some
parasite upon the gypsey moth caterpil-
lars, which if they hatch and prosper
Ire likely to prove of great value in eff
5ecting the destruction Of that insect
The spraying with Paris green was well
md etfectually done.
A device has recently been brought
)ut for preventing the overlooking of
rclght cars. 1t consists of vertical
oolt attached to the truck holster in such
manner as to permit of adjustment.
Is the springs settle with the loading of
he car, the bolt operates an indicator on
he end Of the spring plank, the index
If which arrives at the loaded mark
When the capacity of the car is reached.
\ seal prevents anyone from tampering
With the adjustment.