Amador ledger., 1909-05-14

low the surface, and Camille Flam-
marion has lately renewed his old
suggestion that great exploration
shaft should be sunk to the utmost
possible depth in thorough investi-
cation of the crust of our planet.
This pit should be 200 OF 300 yards
in diameter, cased with massive iron
ring. The heat increases at an aver
age rate of one ,oentigrade degree for
every l0H feet, aud the temperature
of boiling water might he expected
at little less than two miles, but
the boring should go much deeper.
The lands in France, as we'll as GER
tain plains of Belgium, Holland and
Roumanla, should have favorable
spots for excavation. Such an under
taking would offer unknown possi
bilitles of practical and scientific re-
suits. geological and palaeontologica ical
cuIiosities, iron mines, copper mines,
precious metals, veins of gold,
platinum, silver, Iadium, etc., and
lmultimillionares with dread of dy-
ing rich have here an opportunity of
acquiring fame and adding to human
knowledge.
uhe amphibioycle, the novel ma
chine of Lyons meehanlcian for
travelling on land or water, is a
bicycle mounted between two
cylindrical steel floats feet long and
a toot in diameter. a propeller and
rudder being attached. In water
the rear wheel of the bicycle operates
"a friction wheel to drive the pro-
peller. On land the floats. etc, are
raised so as not to touch the ground,
and the bicycle carries them along
as it travels In the usual way. The
total weight is about 27O pounds.
The machine has travelled readily on
ordinary roads, and easily made or
miles an hour on the SaoDe.
Late experience has shown that the
color blind may be taught to name
ordinary colors correctly, although
they may net see coIors as others dc.
A conductor on the Southern Rail
way was discharged for color blind
ness, when be began to study colored
wooIens and paints, and in five weeks
passed a rigid color examination
without a mistake, DR.. Brawley has
overcome the disadvantages of color
blindness in other persons by like
course of color study.
The incandescent gas mantle Is
modified into a heating radiator by
Marcel Delage, Paris engineer. A
tute Of asbestos thread, of open mesh,
is formed on the same mold as the
gas mantle, and is cut to proper
length and the top drawn together to
form a head. Greater solidity is
given by dipping into sllicate of
soda, then drying and calcining on a
gas burner. 1t is next dipped into
nitrate of eerium solution and again
dried and caicined, this treatment be-
ing essential, as the great heat rada-
tion Is due to tho cerium salt. The
completed mantle may even be
dropped on the ground without break
ing. In use, it is suspended over
clue fame, six in row in an open
front stove form Of radiator being an
effective arrangement; and it heats
quickly, making the best use of gas
heat by radiating a large part of it
horizontally. The bright glow of the
mantles gives an attractive and cheer
full appearance to the radiator.
There is good reason for believing
that the moon was torn out of the
earth, the Pacific Ocean being poss
IDLY the remaining scar, and it ap-
pears that the stony fragments Prof.
II. q. Chamberlin thinks may have
been projected into space in the great
cataclysm are even now returning as
meteorites. or the two chief GLASSES
of meteorites, the stony ones are
found 10y Prof. W. Ii. Pickering to te
all explained by this theory. while
some of the iron ones may have had
the same origin. Unlike the stony
meteorites, however, the metallic
ones seem to be associated with
comets aud star showers, coming
from more distant regions of space,
and falling with greater velocity,
The meteorio stones and irons are
about equally represented in muse
ums. Many more stones are actually
seen to fall, however, and as they
soon decompose and are not easily
recognized, they may have been more
numerous in the past than now. or