Deseret evening news. [volume] (Great Salt Lake City [Utah]) 1867-1920, 1899-12-27
SCIENTIFIC MISCELLANY.

SCIENTIFIC MISCELLANY.
II appears to be well proven that
the ravs OF the ultra violet end OF the
spectrum. the chemical rays. have the
property OF destroying bacteria, that
that they may penetrate the skin.
These facts ARE likely 20 prove OF great
importance In medicine. Some years
ago, Or. Finscn. Danish physician,
concluded that the skin Inflammation
In SMALLPOX was due to increased sem
sitlvcness 10 the chemical rays and on
excluding these rays by placing his pa
TENTS in rcd light he greatly lesscned
this painful effect. Sunburn and <-ray
burns seem to be due 20 n concerns
tratlon OF the active rays. DIR. Ftnaen
has now taken advantage OF the hac-
tericidal property, and In cases OF skin
diseases due TO microbes, instead OF cx-
Guiding the chemical rays. he concern
trutcs and cools them by special in
strumenL Hts experiments thus far
have been chiefly applied to lupus. with
which he has had such success that
any failure throws doubts on the dag
nosls, about $50 cases havin. been
treated.
Scattered In cvanescent cloudlcts
through the air near tho earth are
believe that the most powerful of these
cNhnlations do not reach far upward.
while diffusion laterally II so GLOW that
the smell OF oil Of Hines was eighteen
minutes passing through tube three
feet long. but the wind transports the
odors far and rapidly Rev. John NJ.
Bacon, who has been investigator: the
subject, mentions n smell OF burning
! fat that was drawn by the wind into a.
stream much more than seven miles
long. but OF little width. lie mentions
the record OF n boats crow that was
cnveloped In dense wreath OF wood
smoke when 400 miles at sea: and also
that OF smell Of priincvnl forets that
seemed to have been borne by a cyclone
across the Atlantic 20 the coast OF
France.
a remarkable effect In preserving
fruit IL shown by shredded banks OF
the tree and the Melalcnca lcucadcn-
dron. In which fruit Is now packed for
shipment from New South Wales. The
prevention OF sweating II n possible ex-
PLANTATION OF the preserva,ive power.
A patriarch among working machines
lately placed ON the retired list at
Pcterawnld. Austria, n OF far greater
interest than most old junk. II IL n
holsting engine built by Daniel Schmidt
OF Vienna. and has the remarkable reu-
ora VI EfINltf SINCE lNtis MbFhlUE NJ
nrat with steam pressure OF two at
mospheres, which was subsequently In
creased 10 six ntmospheros. Its later
use was In deepening the mine SHAFT.
its duties being to lower material and
to raise and lower the miners. The en-
ginc has slnglc upright cylinder OF
l2it inches. n stroke Of 2Iik inches, and
Is iitted with fiat valve gear. the valve
being worked from an eccentric on tho
crank shaft. The motion of the piston
was transmitted by n connecting rod
and crank 10 n nywheel shaft. This
shaft, In addition to n nywheel ~ feet
In diameter. carried u cogwhecl, which
transmitted power 10 the drum through
n larger toothed wheel and a pair OF
bevel wheels. To the original hand
brake, mounted on the rim OF the ny
wheel, an automatic steam brake. act
ing on the winding drum. was after
ward added.
The milk-condensing process OF Mr..
u. T.. Mcintyre, which has been under
test for considerable time. has been
reported by DIR. IL. q. Marcy, Of Boston,
as giving results that promise 20 rovo-
lutlonize the worlds milk distribution.
The milk Is frozen during gentle aglta-
tlon, and the Ice Il removed. about
eighty per cent OF the water being thus
distracted at much less expense than
by evaporation In a vacuum, and the
solids arc not affected. The fat glob-
ulos are not broken up. the cream being
unlmpaired for the table. Late expert
menta show that the bacteria are nearly
not quite-all destroyed. and that the
product VIII keep In glass Jars for
weeks instead OF days a brick OF solid
milk several months old, made by fur
ther removal Of water Is still In good
condition.
A method OF rendering corla very Inn
permeable without affecting their elas-
ticity has been patented In Germany by
Herr u. ii. Wundrum. caoutchouc IL
dissolved In 10 times It's weight OF ben
zine, and the corks are placed IN this
solution and submitted TO pressure OF
10 or " atmospheres by means OF a
force pump They are then dried In a
strong current Of air.
Trying many colors, II. j. Mollcr has
found that medicinal agents are best
protected from Hight by black. red,
orange, yellow, brown-yellow and pure
green glasses blue or colorless glass
offered no protection against the chem
zeal rays.
Few opportunities have been offered
for the accurate determination OF the
distance at which great explosions have
land, being In n thlokly populated dis
trict II has seemed practicable to trace
outward from It's source the sound OF
the recent great explosion OF so TONS OF
chlorate OF potash. and DIR. Charles Dn-
vlson has obtained 81 records from AZ
different places. These show that tho
sound was heard over an ellipticai area
or about $50 square miles. the air wave
being strong enough to rattle windows