The Forest Republican. [volume] (Tionesta, Pa.) 1869-1952, 1892-11-30
SCIENTIFIC AND INDUSTRIAL.
By a new device YOU can blow out I

Bya new device you can blow out the
gas.
Rice is the least nitrogenous of all
grains.
The average depth of sand in an Afri.
can desert is thought to be from thirty
to forty feet.
The only existing bird which has a
fve-toed foot, when in adult life, is said
to be the Dorking fowl.
There is large factory near Chicago,
ILL.,, which does profitable business 10
manufacturing useful articles from the
waste blood of animals.
Reviving an old project, French
company proposes that lightships con-
nected by telegraph be stationed at in-
tervals of 200 miles across the Atlantic.
An English experimenter, E.. T. Chap.
lin, has given an account Of hypuotizing
laying hen, and inducing her in that
manner to sit on sitting Of eggs until
seven of them had hatched out.
Pictures are taken now of patients at
various stages of disease, and compar-
ison 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
ternste layers of oakum and red lead,
well rammed in, is the proper stopping,
and does not crack or shrink like cement
| ,,-o,,ll. DnrflonA nOt
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 land
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 its own slight affinity for water. The
ice in melting rapidly absorbs heat or
renders heat latent, and hence reduces
the temperature below that of ice, which
simply melts by heat acquired from sur
rounding objects by conduction or con-
vection of air.
Light travels at the rate of 213, 600
miles a second, velocity which causes
the rays from the moon to reach us in a
little less than secoDd and quarter.
The rays of Jupiter aIe ffty-two minutes
in reaching us. 1t would take millions
of years for the same beams to reach Us
if their starting point was from one of
the fixed stars.
The red glow of the planet Mars has
puzzled everybody but French astron.
Omer, who gives it as his opinion that
the vegetation of that far-away world is
crimson instead of green. He also says
that he hasn't 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 and 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
tion, which show that last year $50, 900,
900 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 for ma.
ture's grand "evening-up' provisions,
the fishes of the seas would multiply 50
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 As, 900, 900 eggs in single
gaaSon