The Prince George's enquirer and southern Maryland advertiser. (Upper Marlborough, Md.) 1882-1925, 1895-09-13
POPULAR SCIENCE.

satisfactory Ssa> pipes III q INV iiA'o
OF Manila paper, coated with asphalt.
Edison claims to have in his labora-
tory every substance, organic OF lnor-
ganic, in the world.
The Philadelphia Board of Health
has refused to declare consumption to
be contagious disease.
By the invention of woman, threads
are now cut on watch screws that are
finer than q human hair.
Turtle doves when they appear to
kiss are only propeIling half-digested
food from one mouth into another.
About the thinnest thing in the world
is the film OF a soap bubble, OF which
it would take $4,000, 900 to measure
an inch.
The sticky, sweet, high-smelling fluid
secreted by the cheney ant" of Mexico
is used as food and also for medicinal
purposes, especially in diseases Of the
eye and ea1.
The late Frederick Schwatka found
the temperature on Burk's Great Fish
River, Arctic regions, to be seventy
one degrees below the zero of the Fan
renheit scale.
4 process of forming artificial whale
bone from animal hair, consisting in
subjecting the hair to a softening bath,
then to a bath of acetic acid, and,
finally, placing the mass under great
pressure, has been invented.
An electric company in Boston have
the most original design for calendar
ever issued. It represents pug dog
who will at command set up on desk
and present to a visitor the business
card of the firm. which is held in the
teeth of the dog.
A new soap recently introduced in
France contains ground glass and emery
of different degrees of fineness, and is
recommended for polishing iron and
wood and for all the usual purposes of
sand and emery paper. It may be used
either dry or after having been damp
ened.
A pound of rice is shown by chem
ical analysis to contain IS. % per cent.
of nutritive matter The same guam
tity of wheat contains SIS per cent. ;
rye, S2.7 per cent. oats, 74.2 per
cent. corn, S2.97 per cent. potatoes,
%. % per cent. fat beef, 1903 per
cent. lean beef, 1888 per cent.
Columbia College, New York City,
has organized what it calls the Elec-
trical Workers University Extension
Society. A course of ten lectures has
been arranged to take place in the
Cooper Union, while President Seth
Low has agreed to contribute $1,000 to
the expense of the course, to which no
admission fee will be charged.
Professor Edwin ]. Houston says
that one of the achievements of the
future in electrical development is the
device for looking into q receiver at
one end of a metallic wire and seeing
therein faithful reproduction OF what
ever poetical imaginations are inn
pressed on persons memory at the
other end, even though 1000 miles
apart.
Professor Falb, of Berlin, prophesies
qvery probable collision between the
earth and the comet of 1866 on No
vember Is, 1899, when the comet will
cut the point where the earth arrives
every year at that time. But he does
not think harm could come of such
collision, the material of the comet be-
ing SO light, unless the carbonic acid
gas, of which it is probably composed,
should poison our atmosphere. But,
anyway, he says We may look for a
magnificent shower of meteors on that
date,