Amador ledger., 1910-02-04


Glasgow of Johnson smoke consumer
that has been in use 2 years The ap-
paratus is essentially an extra CRATE of
perforated asbestos and fireclay bricks,
which is built behind the ordinary
CRATE, and is proportioned to give an in
tense temperature OF the air required for
perfect combustion. Instead of passing
into the boiler flues, the mixture of
smoke and unconsumed gases, retarded
by the second CRATE, ignites, and burns
with the addition of much heat. There
are no steam Jets, the working is auto
matte, and convenient lever turns the
crate on or off Besides the preventing
of smoke, considerable advantage is
claimed in the saving of coal. In the
test made, great cloud of smoke from
fresh fuel was sent into the chimney,
then the apparatus was applied and
within 40 seconds-the time needed for
the fues to clear-every trace Of smoke
had vanished from the chimney's mouth.
Even scientific records like other his
tory, are sometimes made peculiarly.
In a recent lecture Prof. w. NJ. Davis,
of Harvard University, referred to the
great erosion of stratifed rocks that has
taken place on the plateau of southern
Utah and i'll the Colorado Canon, Show
ing that this proves the lapse of an enor-
mously long period, but that no estimate
of the earths age even approXimating
accuracy can be made, though a rough
idea may be had by talking freely of
scores of millions. The curiOusly er-
roneous report OF this lecture, intimat-
ing that he had found plan that fixed
the earth 6 age very exactly at 60,000,
600 years, has gone the rounds Of the
press, including even the scientific
papers.
The ball bearings for car aXles on the
Prussian State Railway have shown a
decrease of 10 per cent in the resistance
at a speed of Is miles an hour, ana
much greater decrease in the power re-
CURED to start. There was little wear
after ESQ 600 miles of running.
Experiment has shown that the vibra-
lions of low rate producing sound have
no curative action upon the body, but as
the vibrations increase in heat rays,
then light and finally the ultraviolet or
invisible chemical rays, and heat, light
and chemical energy all play a part in
the new system of phototheraphy. In
the Finsen light treatment, so remark
ably effective in lupus and other skin
diseases, all but the chemical rays are
cut out though an electric arc of 10000
candle-pow was originally used. The
chemical rays have little penetrative
power, and for producing deeper effects.
DR. A. D. Rockwell reports that he tried
at first single incandescent lamp Of 500
candle power, which was placed under a
hood, and was readily applied to any
part desired. Only after repeated COM
parative tests was this lamp discarded
for the uncovered electric arc. The lat
ter vas found TO combine the effects of
light, heat and chemical action, being
ctically the same as sunlight, but far
more conrollable, and it can be made
instantly intense OF mild, concentrated
or diffused, OF made TO yield or exclude
different rays at will. The deeper Pene
tration enlarges the curative pOssibili-
ties. The blood-as Wetll as the skin
and nerve endings-is powerfully stimu-
late IN &c pV; &c in
creased, and general healthful and dis
ease resisting conditions are promoted.
An induction coil used TO illustrate a
recent lecture al the London Royal lnsti
tuition was made by the late Mr. Spotts
wood .5S years ago The machine weighs
over q ton, about 28O miles of wire hay
ing been used for the secondary coil
alone. and the lecturer succeeded in
getting from il & spark more than thirty
inches long In the hands of the maker,
it formerly yielded flashes y inches
long. Mr. Spottiswood had made the
discharge bore a hole through glass an
inch thick, but an attempt to repeat this
experiment was not successful.
For aiming rifle in complete dark
ness, the novel appliance Of a German
engineer is a telescope searchlight, con.
tanning a small electric lamp, fixed to the
barrel below The stock. The tests so far
made are claimed to have been COM
petely successful, and shots at long dis
tances all took effect,
The ophthalmod diaphanoscope Of DR.,
Carl Hertzel of Berlin lights the retina
from the back, so that the oculist can