Amador ledger. (Jackson, Amador County, Calif.) 1875-19??, 1907-08-02

Wireless Time.
The fCg-dispersIng station proposed
by Nj. NJ. Dibos includes a very large
Ruhmkorf coil, giving spark of
about one meter. with a primary cur
rent from accumulators or dynamo.
In the primary circuit are a rotating
interrupter and a condenser in par
allel. The current induced In the
secondary circuit is converted from
alternating into intermittent by two
series of four Cooper Hewitt mercury
vapor reotifiers, and then passes to
the inner coatings of two large
Leyden jars, with connected outer
coatings. From one jar a wire leads
to earth. A wire from the other
the positive electrode-runs to the
top of an antenna mast. and there a
crown of points scatters the electric
waves into the air. With such
apparatus clear spaces 300 to 400 feet
across have been formed in dense fog.
Such spaces would be useful in habors
and on railways, but every vessel at
sea needs clearness for at least a
quarter of mile in every direction.
Temperature and humidity can be
recorded accurately. but the figures
give only a vague idea of how we feel
climate. W. f. Tyler, of Shanghai,
has way of comparing climates by
the varying degrees of comfort or dis
comfort produced. Indicating muggi-
ness by the term ''hypher," he
divides his hypher scale from 1 to 10,
and lets 10 represent the worst posi-
BILE day-the hottest, dampest and
most enervating day of China; while
applies to the ideal summer day
warm, bright and braoing. Expert
nents show that normal persons esti-
mate the varying degrees very accur-
ately.
A IA years. study on an English
railway has shown that unequal wear
of rails is largely due to difference in
structure of the metal from varying
temperatures and speeds OF rolling
the rails.
The model animal park opened by
Hagenbeck at Stettingen, near HAM
burg, contains &c acres, and is design
ed to offset the work of mature
takers" by making familiar the daily
life of wild animals in their native
state. The conditions of the native
haunts of the animals are initiated as
closely as possible. There are no
cages, but the various species are
kept within prescribed bounds by
concealed bitches 20 feet wide and II
feet deep. A shaded avenue leads the
visitor to favorable points for obser-
walton. A spacious lake holds all
kinds of waterfowl; mound hey
Is alive with zebras, butfaIoes and
other hoofed animals; distant range
of artificial mountains is the home of
artificial iceberg of boulders is cover
ed with polar bears, with seals, sea-
lions and cormorants at the base.
Though restricted in range, the
animals have much more than the
usual freedom, living in quite a
homelike manner. The park contains
80 lions, "A elephants and tigers,
With rhinoceroses, hippoptami. birds,
reptiles, and other creatures.
Soft-shelled eggs are not due, as is
so generally believed, to lack of lime
in the food of the hens. Such an egg
is really case of arrested develop
ment, produced by nervous interior
ence with the functions of the owl
duct. Extreme mental distuI bance
may cause it, and at the Kansas
Experiment Station soft shelIed eggs
have resulted from toe continued
excitement of confined hens. 1t was
further shown that on an ordinary
diet hens system has lime for five
or six eggs. Laying will cease after
this number II lime is not supplied,
but on small amount. of lime eggs
that are really slightly thinner she'll
cd than usual may be laid, though
careful weighing is necessary to show
that the shells are not normal.
The ''souI-houses" lately found al
the cemetery OF Rifeb, Upper Egypt,
are tiny structures of clay in which
the souls of the dead we're supposed
to take refuse. They date from about
300 B. q.
An institution that is quite unique,
forming a class Ey itself, is the
Radium Biological Laboratory al
Paris. 1t was organized about year
ago to test the curative possibilities
of radlum and it comprises chemical
physiological and clinical research
departments as we'll as that specially
given up to radium. The work al
ready done was recently demonstrated
to visiting medical men. The large
number of cases treated have included
those of persons cured of cancer o.
the skin and lupus, and skin tubercle
and other diseases of the skin have
been cured. RadIum treatment seem:
to have given positive results in re
duoing the Disagreement of straw
berry marks and other natural spotl
on the skin of children and nthars