Amador ledger., 1907-05-03

Bad Breathing. An Effective All
Filler. The Magnet in Eye Surgery
"A Novel Furnace. .rs.
Electro olysis has been little investi-
gated, but now demands greater atten-
tion. as it appears that stray currents
in damp soil may endanger buildings
as we'll as the pipes under the street.
Experiments by A. A. Knudson,
NewYork engineer, at least go to show
that the metal embedded in reinforced
concrete is not as perfectly protected
against corrosion, as has been sup
posed. The tests we're made on blocks
Of Portland cement sand concrete
three years old, and on blocks of Ro
.sendale cement thirty days old,
piece of two-inch wrought-iron pipe
being embedded in each block to a
depth of eight inches. Blocks kept
thirty days in unelectrified sea- water
remained in perfect condition, the iron
continuing quite bright. Exposed to
an electric current in sea- water and in
fresh water, blocks of the older con-
crete became badly cracked, were cas-
lily broken, and the pipe- were much
corroded, and blocks of the newer
concrete showed cracks as early as the
sixth day.
The yate tree of Western Australia,
growing to height of 100 feet and a
diameter of 21s to feet, yields the
strongest timber known. Late tests
showed an average tensile strength of
"a, 00O pounds to the square inch, equal
to that of cast iron, and some spsci-
mems resisted 171s tons to the square
inch, equal to the tensile strength of
wrought iron.
Amputating horse s leg at the fet-
lock Joint Prof. U Udriski, of the veteri-
nary school of Bucharest, has replaced
the lost portion with a leather artI-
fetal leg that enables the animal to
walk about and take exercise.
A poIygIot medical journal is an
nounced from Berlin, each article to
be published in German, English.
Italian and Spanish. Several Ameri-
can medical men contribute to the
first number.
Changes more extraoI dinary than
have yet come from human invention
are looked upon by MAJOR b. r. S.
Baden-PoweIl as possible results soon
to come from the flying machine.
Balloons, kites and flying machines
are means by which man can now
ascend into the air or send up in
stIuments of Investigation. The bal
loon is too cumberous and delicate to
be of wide application, yet it is use
full as a scientific observatory and for
reconnaissance in war. Great i'm
provement has resulted from engines
and prnpelIers. The French govern
ment made the first dirigible airship
% years ago, and now it has at least
one that seems practical air vessel of
war. In Germany Count Zeppelin has
produced machine that beats all
records in size and speed. At the
other extreme in size are tiny balloons
carrying only seIf-recording instru-
ments, and these have assembled to
82C, 90 feet, nearly 16 miles. Kites
also have proven useful to the mete-
orologist. Improved models, retained
by wires, now lit instruments four
miles, and in large size, have been
regularly introduced into military
service. Men we're first raised from
the ground at Aldershot in 1895, while
in late experiments height of 30CO
feet has been reached, the kite-rider
virtually disappearing from view.
The flying machine was an impossible
ity not long ago, but within two or
three years has been so developed that
experimenters have sustained them
selves in air for half an hour at a
time. Little remains to do ere man
| Will udN0 CUuQu0F6u lHo ali.
For his curious theory that bald
ness Is due to lack of upper chest
breathing, DIR. Delos NJ. Parker, oi
the Detroit college of medicine,
claims certihcation by thousands OF
observations during many years. No
victim OF common badness was found
who breatheu properly. The lungs
being imperfectIy filled and emptied
and emptied, it is supposed that re-
sidual air is lett in.the upper passages
and develops soluble poison. This
poison specially affects the soap,
where the skin Is practically blood
less, and therefore of low vitality.
Persistent return to correct breathing
has been followed by disappearance of
dandruH in one week and beginning
of new growth of hair in six weeks,
/ and a fresh covering has been de-
veloped been on head that had been
bald twenty years.
The Warwick air-purlher, new
device for steriIizing the atmosphere,
| has been tried with such success in