The mirror. (Stillwater, Minn.) 1894-1925, 1896-12-17

one square mile is equivalent to
about II, 100000 gallons of water;
The oyster grows from the in
side by throwing out every year
rings or circles of a calcareous
substance, and experts can tell
where the growth begins and ends
for the year.
The temperature of the suns
surface is greater than we have
anywhere on earth. It has been
measured and determined to be
between 10000 and 10000 degrees
Fahrenheit.
In a ton of Dead Sea water
there are Isl pounds Of salt; Red
Sea, ninety three; Mediterranean,
eighty-fve; Atlantic, eighty-one;
English Channel, seventy-tw
Baltic, eighteen: Black Sea, twen-
ty-six; Caspian Sea, eleven.
The greyhound seems to have
been developed in level, treeless,
shrubless countries, where NOV
ing object is visible at long dis
lance, and great speed is therefore
necessary to enable predaceous
animal to overtake it's prey.
The eyeball rests in cushion
of fat, by which it is surrounded
on every side. When the system
becomes greatly emaciated through
disease, this fat is absorbed and
the eye sinks further into the head,
thus giving the sunken appear
ance so common in disease.
The total wealth of Great Brit
ain with all her possessions is es-
timated by an American authority
to be S40,O00,OO0,OOO. France
comes next with S57,5OO,OOO,O9O.
The wealth Of the six largest ma
lions of the world aggregates $3.50
00O,OO0,000.
Lord Kelvin holds that the in
ternal heat Of the earth has moth
ing to do with the climates. The
earth, he says, might be of the
temperature of white hot iron two
thousand feet below the surface,
OF at the freezing point fifty feet
below, without at all affecting a
climate.
The heat of the moon is only
about one-one hundred and sixty
thousandth part Of that which we
get from the sun The moons tenn
perature is about that Of the freez-
ing point. A strange unexplain-
able phenomenon is that when
the moon is eclipsed it's heat sud-
denly disappears. and does not
come back for an hour and half
after the eclipse is over
A Frenchman, NJ. Bersier, has
devised plan by which the COM
pass performs the part of the
helmsman An electric current is
placed to work on the desired
course. and when the vessel gets
off the course for which the cleo
trical instrument is set, the cur
rent start motor in either
direction and moves the rudder
until the vessel returns to her
proper course.
Telephone wires seem to have
an important influence in prevent
ing lightning from striking, ac-
cording to the Investigations of
the German telegraph department.
Three hundred and forty towns
with telephone systems. and five
hundred and sixty without them
were under observation. In the
former the lightning struck three
times for every hour of storm, in
the latter five times.
A very low temperature. 400 de-
grees below zero, has been shown
to have a remarkable effect upon
the color Of many bodies. The
brilliant scarlet of vermillion and
mercuric iodide is reduced. under
its influence, to a pale orange, the
original color returning with the
rise of the temperature, Blue
are unaffected by cold and the eff
feet is comparatively small upon
organic coloring matters of all
tints.
As to the age of the Niagara
Falls, biologists differ widely in
opinion At first it was estimated
that the Niagara River came into
existence, through changes in the
level of the land around the Great |