The free press. (Poplarville, Miss.) 1890-19??, 1892-12-01
SCIENTIFIC AND INDUSTRIAL

Bya new device you can bio" out Jig
gas. II
Rice is the least heterogeneous OF all
grains. ar:
The average depth of sand in an Atrl'
can desert is thought to be from tnrCy
to forty feet.
The only existing bird which has :
fve.toed foot, when in adult LIE, Is saiu
to be the Dorking fowl.
There is a large factory near Chlcago'
H.. which does a profitable business 10
manufacturing useful articles from the
waste blood of animals.
Reviving an old project, French
company proposes that lightshlpS con
nected by telegraph be stationed at IN
torvals of 200 miles across the Atlantic.
An English experimenter, E. T. Chap
lin. has given an account OF hypnotlzlnS
LAYING hen, and inducing her in that
manner to sit on sitting OF eggs until
seven of them had Matched out.
Pictures arc taken now of patients at
various stages of disease, and compar'
isor of those with photographs OF others
similarly afflicted discloses phenomena
OF great interest and value to medical
science.
Portland cement will not do for caulk-
ing the joints of greenhouse pipes. AL
ternate LAYERS of oakum and red lead,
well rammed in, is the proper stopping,
and does not crack or shrink like cement
would; and again, Portland cement
even if it answered in other respects,
would give too rigid joint.
Some one has estimated that twenty
two acres of land is needed to sustain a
man on flesh, while that amount OF lana
sown with wheat will feed forty-tWo
persons sowed to oats, eighty eight; to
potatoes, Indian corn and rice, 176 per-
sons, and planted with the bread fruit
tree, over 5000 people could be fed.
Salt affects the freezing of ice cream
by causing the ice to melt, on account
OF It's own slight affinity for water. The
ice in melting rapidly aDsorbs heat or
renders heat latent, and hence reduces
the temperature below that of ice, which
simply lnelts by heat acquired from SUI
rounding objects by conduction or con-
vection of air.
Light travels at the rate of 213, 900
miles second, velocity which causes
the rays from the moon to reach us in
little less than secopd and q quarter.
The rays of Jupiter ale ffty-two minutes
in reaching US. 1t would take millions
of years Tor the same beams to reach US
if their starting point was from one of
the liked stars.
The red glow of the planet Mars has
puzzled everybody but a French astron-
omer, who gives it as his opinion that
tue vegetation of that far-away world is
crimson instead of green. He also says
that nc hasn'b the least doubt but that
there are single flowers on the war gods
surface which are as large as the incor-
porated limits of Paris.
The introduction of electrically driven
coal cutters ard other mining machinery
is making rapid progress in the bitumi-
nous mining regions of the Central West.
The importance of this line of work will
be apparent from the figures of produc-
ton, which show that last year $50, 000,-
coo tons of this coal were mined in the
United States principally west of the
Alleghenies.
Piscatory authorities of the highest
standing tell US that were it not Tor ma
ture's grand ''evening-up" provisions,
the fishes of the seas would multiply so
rapidly that within three short years they
would fill the waters to such an extent
that there would be no room for them
to swim. This will hardly be disputed
when it Is known that single female
cod will lay 45,0oO,0 600 eggs in a single
season.