Amador ledger. (Jackson, Amador County, Calif.) 1875-19??, 1907-10-11

gineering Necessary A Radium
Paradox.
The Stag from smelling fur
naces, formerly a waste product,
serves now for variety of uses, of
which a few are enumerated by DR.
Theodor Roller. A blast of steam
converts the hot Stag into mineral
wool, non-conductor of heat and
sound, which is valuable for cover
ing steam-pipes, filling the walls of
fire-proof safes, and placing between
double floors. Nodded Stag forms ex-
cellent building stones, while crushed
Stag is good for road gravel or for
making into building bricks with
lime. Very durable and easily re-
placed paving stones are made by
burning crushed Stag and clay until
glazed. By an English process the
hot Stag direct from the furnace is
economically formed into glass, and
makes transparent plates very suit
able for roofing and sky-lights. A
French patent covers a method of
obtaining sulphate of alumina gel
atinous SILICA and calcium chloride
by treating residual furnace Stag with
hydrochloric acid, sulphuric acid,
and chalk.
The automobile search-light adopt
ed for the \ British Army is on a
vehicle designed for % to % miles an
hour, and having cannon wheels with
bronze treads and heavy pneumatic
tires, traverses cultivated fields and
bad roads at ~ to 16 miles. The
steel chassis is 20 feet long, carrying
a 4-cylinder Brooke petroleum motor
of 45 horse power, and three foot
lens projects a 100000 candle-powe
beam of light 3 or 4 miles. With
four men, the apparatus supplies
light, travelling or at rest, for 10 or
u hours without interruption.
Fish shown at Paris in 1900 had
been preserved in nitrogen for seven
years. Oranges, pears, grapes, cherr-
les, etc., are now being packed in
paper boxes containing nitrogen, and
the exclusion of oxygen seems to
keep the fruit from decay for an
indefinite time.
Smoke or SCOT is rated by DR.. A.
jacob as the chief cause of acute
inflammations of the lungs, which
Ascher of Stuttgart has shown are in
creasing in England, Germany and
America. The increase is chiefly
among infants and old people. In
dustrial districts had a mortality of
nurslings six times as great as argi-
cultural communities, and districts
of dense smoke had a much larger
death rate than other industrial
centers. The rate among coal miners
is 130 per cent above the average of
the male population. Animals inhal-
ing smoke-like those in large cities
have been found to contract pneu-
mnnia and tuberculosis much more
frequently and quickly than those in
clear air, although there is a singular
belief that SCOT in the lungs prevents
tuberculosis. On that theory the
metal grinders of Sheffield, until %
years ago, sought immunity by visit
ing places charged with coal-dust
after being in metal dust all day.
Few escaped grinders asthma, -
and that is really tuberculosis.
Probably no region of like extent
has so many caves and sinks as the
Karst, desolate limestone plateau Of
Austria Hungary, between Carniols
and the Adriatic Sea, north OF
Trieste. Since a recent careful ex.
ploration, E. Boegan has charted not
less than BAT of the caves and pits,
giving their exact positions, and
specifying dry caverns, underground
watercourses and other features o.
the honeycombed rock. In the
country around the Karst are hun
dreds of other similar caverns.
The secret of the joss-stick, thu
candle and incense of the Buddhist
has been partially revealed by l.
Decker and P. Hu1rier, after lonl
residence in Asia. A rod of squal et
bamboo, of the desired length ant
thickness, forms core and on this i
rolled mixture of odoriferou
powders agglutinated by slightly hea
ed resin, one end being left bare TO
a handle. The composition varies
in Canton province consisting O
camphor, saudalwood aconite, clov
and ten other drugs, the campho
giving a pleasant odor and free burn
ing.
Solid phosphine is material con
tanning phosphorus in a non-poisonou
form, and has been brought forwar
by Purgotti, an Italian, as a safe sui
! stance for matches. 1t is a yello
| fiocculent material, devoid of fast
| and odor, containing twelve mole
! cules of phosphorus to four of hydro