The Abbeville press and banner. [volume] (Abbeville, S.C.) 1869-1924, 1891-08-12
POPULAR SCIENCE.

fOf ULAh SClENCEs F
a full moon reflects 1-3oooth part Of
the suns light.
Mr.. Holmes, of Newcastle-on.Type,
England, has invented a dynamo for
lighting trains. I,
A standard of color has become neces-
sary, and is being sought by the London
Society of Arts.
A fly lays 320 eggs during summer.
The progeny of a single fly may from
June 1 to September 80 exceed two mil
lions. ....
It has been noticed in France that
those persons engaged in cleaning out
the apparatus used in refining petroleum
are subject to skin disease resembling
the cancer of chimney sweepers. ~
Good deodorizers for the sick room:
Coffee pounded in mortar and roasted
on an iron plate; sugar burned on hot
Goals and vinegar boiled with myrrh and
sprinkled on the floor and furniture.
Lieutenant Stafford, United States
Navy, and George A. Dusey, of Har-
ward, have discovered mumiied fam
lily in an Inca tomb, near Ancon, which
will be exhibited at the Worlds Fair.
Inventors would find scope for their,
talents in devising "a car ventilating
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 tho
Mediterranean has been found to be
warmer, denser aud richer in dissolved
salts than the western. While white
disk was only visible at forty-three-
meters, Photographic plates were affected
at 500 meters. 2...
There are three artesian wells located
almost on line within running distance
Of 1000 feet in Sonoma, CAL, which
yield between 10000 and 5000, 600
gallons Of water every twenty -four
hours. A subterranean stream runs be-
meath the town. 81
Fresh fish, if in good condition. viii.
feel firm under pressure of the finger,
and the smell, though ''6shy," is moi:
unpleasant. Reject any the flesh Of
which feels soft, which has the least obs
jectionable odor. The sooner fish II
eaten after it is taken from the water.
the better it will be. ,,.-st.gs
The most brilliantly colored alloy yet.
known has been revealed in recent in-
vestigation by Professor Roberts. Austen.
Its 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
nlloy to another.
The continuous Photographic register
of earth currents kept at the Greenwich
England) Observatory recently showed
some unusual disturbances. These soon
became so regular that the stray currents
were traced to the trains of the new
underground electric railway, though
the nearest earth-plate to the railway
was two and one-half miles distant.
Professor Fernald, the entomologist OF
the Massachusetts, State Agricultural
College, in a recent visit to Maiden and
Arlington, discovered the eggs of soma
parasite upon the gypsey moth caterplt-
lars, which if they hatch and prosper
are likely to prove of great value in Ell
fecting the destruction of that insect.
The spraying with Paris green was well
and effectually done.
A device has recently been brought
out for preventing the overlooking OF
freight cars. 1t consists of vertical
bolt attached to the truck holster in such
manner as to permit of adjustment.
AS the springs settle with the loading Of
the car, the bolt operates an indicator oD
the end of the spring plank, the index
of which arrives at the loaded marx
when the capacity of the car is reached.
A seal prevents anyone from tamperlng
with the adjustment. ,