Amador ledger., 1908-07-31

MHunHlS. - AClu-frOOI Alloys. -
The Electrified reredo.
An earthquake warming service is
the latest device OF science for safe
guarding human interests against
natural phenomena. For a lumber
of years great earthquakes in any part
of the globe have been first made
known at the chronological observa
tories of Germany and Italy, the
shocks being often indicated by the
Instruments several days in advance
of Geographic news, and since the
San Francisco and Valparaiso earth
quakes the Publications at the three
stations of Graz. Hamburg and Strass
burg have been promptly combined to
show just where the great disturb
ance took place. The time of beginn-
ing of the first, second and principal
shocks being known from the trac-
ings, the durations of the two pre-
liminary phases is determined, when
the distance of the epicentre can be
calculated by known formula.
Circles corresponding to these dis
tances are drawn around the stations
on a globe, and an intersecting point
is found that is the exact location of
the earthquake. On Dec. a, 1906,
tracings of the previous day at Strass-
burg and Hamburg alone were found
to locate an earthquake IN the Lesser
Antilles. Three days later news OF
the earthquake of kingston, Jamaica,
was telegraphed from New York, and
not until the 10th was the date known
as the Sd and not the 5th.
The novel life boat of &. j. +. de
Vos, of Rotterdam, has a hull made
entirely of cane or wickerwork, and
is claimed to possess numerous ad
vantages. 1t is practically unbreak-
able and quite unsinkable. 1t is
not liable to leakage, requires no
protective painting, is cheaper than
other boats, lighter than ordinary
wooden boats, and has more than the
usual room for storing provisions and
water.
Among the rapidly disappearing
wild animals is the Gland or Cape
elk, which is native of South Africa
and one of the largest of the ante
lopes, and is especially priced as
furnishing the best of all venison.
Schemes for preservation includea
plan for demonstrating it and making
1T perform an important share of the
fanny DIRK IN Cape Colony. The beast
is easily captued, thrives under the
new conditions and in an experiment
in the M'Chekwe district of Mashoua-
land two Gland spans were used for
considerable time for drawing wagons,
proving docile and tracta BILE. Healthy
calves were born in captivity. The
animal seems to be proof against the
common diseases of farm stock, and
its flesh is desirable for beef and its
hide for leather.
The ordinary parlor stove is used
by Herr Gutzab, of Berlin, as a re-
ceptacle for an electric rad iator-c
sisting of a wire or carbon of suitable
resistance, and in this way is con-
verted into an electric heater more
satisfactory than those hitherto tried.
Too great local drying of the air is
usual fault of electric heating.
With the new arrangement, the air
circulation produced by the stove
rapidly distributes the heat and at
the same time gives ventilation and
prevents excessive drying. The
ordinary current consumption warns
an average room in about an hour.
With the large tile stoves so common
in Germany the heat Is retained a
long time, and the cost of keeping
the room comfortable is moderate.
Gas so dense as to sink in liquid
was singular result OF late expert
ment by DIR. hammerliugh Onnes. A
mixture of hydrogen and helium in a
capillary tube plunged into liquid
hydrogen was compressed beyond 49
atm ospheres, when the hydrogen be-
came almost entirely liquetied and a
bubble of helium was seen TO descend
into it. AS the pressure was releas-
ed, the helium rose again and hoated
on the surface of the liquid.
The large animals of the world Is
land seemed to have become known