The Red Cloud chief., 1888-04-06
SCIENCE AND INDUSTRY.

SSb6tNSe bAGNO
"A low estimate pnts the number
supported by all the forms of employ
ment furnished by electricity at $780,
900.
1T has been discovered that wool
previously saturated with \ ten per
cent. solution of ylvccrine can bear 4
prolonged heat of some go degrees
without injury.
Gum of Bassora is insipid and
tough and of n yellowish white color.
and comes from Asia. and is used tn
! aLuiteratc the lower grades of traga-
canth before expectation.
The creates. velocity ever measured
by man vas that of the electric dis
charge ct 4 Leyden bottle through 4
slender copper wire. which was COM
puted to be 2S3. 900 miles 4 second.
Professor Cones. the well-know.
ornitholoyist. wholly denies the alleged
discovery that the wings of birds We're
capable Of being ''lOcked' so As to al
low them tt soar without muscular
effort. He states that the locking does
not take place. and that if it did take
place flight would he impossible.
Experiments with cast iron show
that when it has been immersed for =
long period in sea water its qualities
undergo very great changes. A can
non ball that had been thus immersed
for fifty years. WAS changed into 81
porous substance which became
strongly heated when exposed to 10
air for 4 quarter OK an hour"
"A Pittsburgh mechanical engineer
has invented Il novel movable dam. by
the use Of which. he claims. 4 boating
stage Of water may be obtained in shall
low rivers ut all seasons OF the year.
The invention has been examined BY
old river men and pronounced practi-
cable. The inventor is c~iSh,y-twO
years old.
The old idea that sufferers from
heart disease should avoid physical cx-
cr'ion has been dispelled by Prof. Ocr-
tel. who has successfully employed
regulated exercise in the treatment Of
some forms. In a large proportion of
cases. the nutrition of the cardiac MUS
Gle. as of the muscular system. gene
rally. is thus Improved.
Barrels are made in Jersey for the
use of the Channel islands farmers
which will fold up when empty. and
thus. having been sent 10 market, can
be packed into a small space on the re-
turn. The slaves are fixed upon tho
hoops SO that the heads being removed.
they may be rolled up. They are made
perfect cylinders. and therefore occupy
less space for the same capacity than
ordinary barrels.
Scientists in England have long
sought to have the education of me
chanics and other laborcrs placed on q
scientific basis. An effort, backed by
half \ million Of dollars. is now to be
made in Manchester to found an insti-
tuition whereby 1.-The physical energies
of the population may be maintained
at n proper level. their moral state be
cared for. and by which there may be
some days of hope and pleasure in their
lives. and the sole prospect of a life of
labor may not be an old age of penury."
Cotton. according to = scientific au-
thority. is not a fiber. but a plant hair.
1t holds to be spun into = thread be-
cause Of peculiar twists in each hair,
shown under the microscope. especially
in pOlarized light. Linen thread may
be spun, because the flax fibers have
certain roughnesses on their surfaces.
which enable them to cling together.
Hence it IS impossible to make as fine
linen as cotton cloth. but it is much
stronger.
Veneer manufacturers having been
put TO much trouble and expense to see
cure from the natives of Persia or from
French markets. even. fancy wood
buris from which to carve out veneers
for manufacturing purposes. have DEM
Onstrated by recent experiments that
red wood stumps possess m%eritOrious
qualities for such use. and will un-
dOubtediy be substituted for the more
costly woods in the future. The de-
mand for burr and curly red wood for
finishing work has already reached
large proportions in the West. The
large butts of trees now being slain IN
California forests will be used to \
great extent.
cANH0V1C oalSNoo0sr~