Clinch Valley news. [volume] (Jeffersonville, Va.) 18??-2019, 1889-12-13
SCIENTIFIC AND INDUSTRIAL.


is keeping alive unhealthy people to breed
unhealthy children.
Sir William Gull says that when tagged
out by professional work lie recruits his
strength by eating raisins, and not 10y
drinking wine or brandy.
The disinfccting power of animal gas
is such that when introduced into sewage
it very quickly destroys the microbes of
putrafaction and of many diseases.
Hollow bricks are coming into very
general use in building. They crush ut
10000 pounds and cost onc-third less
than the ordinary form, while making
the walls proof against fire. moisture aud
frost.
While the use OF electricity in London
for illumination is steadily increasing. the
use of gas is also rapidly on the increase,
the demand for the latter for heating and
cooking being greatly in excess of former
years.
4 piantcr in South Carolina has sue
cccdcd in propagating the male cotton
plant by itself. until he now can raise
cotton seed without the lint or cotton.
The gain appears. t be i'll the increased
yield of seed.
II is known that the bellows were used
in Egypt in the time of Tothmus ILL.,,
one of the Pharaohs 400 i. G.. From a
picture on II tomb of that date bellows
made of leather bngs, worked by men
standing upon them, ARE shown.
The two sides of the face are by no
means alike. AS rule, the want of
symmetry is confined TO the upper part OF
the face. Among other singular cccen-
tricitics is the fact tlia. the right car is
almos; invariably higher than the left.
Fisii-mcat does not contain more phos-
phorous than ordinary butchers meat.
The bcucii; which brain workers are said
10 derive from diet OF fish should there
fore be ascribcd, not to the phosphorus,
but 10 the greater digcstibility of the
fish.
An electric pcll-buoy is proposed, one
of its chief attributes being that the
action of salt winter produces Il current
sufficiently strong TO ring Il bell. A
secondary bell, to be r,ng i'll rough
weather, is also an attachment 10 the
buoy.
The manufacture of sugar by tho diifu.
sion process in Louisiana has resulted in
Il great increase of output. Moreover.
there is already growing up II more
scientific agriculture, Il better knowledge
of the problems of sugar manufacture. Il
more scientific method in the sugar
house, and the introduction Of improved
machinery.
y Dutch physician declares that Il
close connection exists between the cxcr-
else of mental faculties and disorders of
the nose. He says that if il were gencr-
ally known how many cases of chronic
headache, of inability 10 learn or to per-
form mental work. where due to chronic
disease of the nose, many Of them would
be easily cured
EXtralitc is the name OF "A new cx-
plosivc patented by Rudolph Ericsson, Il
young Swe,lc 1t is claimed by its in
ventor to bc not only of great power, but
also to he absolutely harmless when not
properly confined in an air tight and
rigid receptacle. The cXtralite is an in
nt-lookinY granunted substance of
about the color and general appearance
OF coarse corr-meal.
The Ecit,ot,cAnische Echo is response
bic for the following explanation of why
OAKS are more frequently struck By
lightning than beech trees. The leaves
of the hre:h tree are. it seems, covered
with Il fine dom, which is better con
duc.or of electricity than the smooth
leaves of the oak. According to the
same Journal, experiments with dis
charges from influence machines tend to
confirm this theory.
In the acw process oil making white
lead the ore as it comes from the mine is
volatilizcd and oxidizcd by the air. the
fumes are condensed in slightly acid
liquor. and the resulting siudgc is washed
and driel for the market without having
been touched by the men. Quickncss of
manufacture, starting with ore and not
with the purified metal, and avoidance
of danger TO TIE workmcn, are among
the advantages OF the rev system.
Cement should never be disturbed af-
ter commencing to set. Ii should be
kept moist and wet until hard. Cold re-
tards, heat quickcns settings. Brick OF
stone should be wet or moist, or cement
will not adhere we'll. Portland cement
requires less water than natural OF
American dement's. 1t sets in from three
to twelve hours. 1t must be kept dry,
or il will become lu:npy and spoiled. II
need never be used pure, but should nj
ways be mixed with sand.