Shenandoah herald. [volume] (Woodstock, Va.) 1865-1974, 1891-10-09
POPULAR SCIENCE.
Microcidine is a new antiseptic.

The practice of "cold saving" of
steel and iron is being generally
adopted.
A new mineral has been discovered in
Texas which IS said to be seven times
stronger than any other when made into
wire.
The average Of the pulse in infancy is
one hundred and twenty beats per
minute; in manhood, eighty; at sixty
years, sixty.
Electric pleasure boats are now in
use in many places. Storage batteries
ere used in them, although the novelty
is somewhat expensive.
1t has been found after elaborate ex-
periments that sewage can be more
efficiently filtered though open san c
than through sand covered with soil.
The demand for American screws ii
so great in England aud Germany that a
screw company OF Providence has estab-
lished branch factory in Leeds, Eng
land ,and will put up another on the Goa
tinent.
The distance of the horizon is governed
by the height Of the eye above the earth
or sea. On the sea, with the eye at a
height OF five feet, the distance would
be three miles; at sixty feet in height,
tea miles.
A pathological statistician calculates
that in the year 2OO0 there will be
100, 900, 900 people who speak Eng-
lish, and that the other European
languages will be spoken by only jJO,-
OOO,OO people.
Scientists claim that the first appear.
ance of the North American Continent
above the waters was in a small, angular
section, extending from the Great Lakes
northeast to labrador, anl northwest to
the Artic Ocean.
Professor Tacchini, at Rome, has found
that the marching Of a regiment OF SOL
diers $50 yards away was registered b7
the earthquake apparatus located in the
tower of the college at heighs Of 12j
feet above the city.
The air is admitted to the in
terror of a leaf through minute opening;
or mouths, which generally exist in grea;
numbers. Thus upon an ordinary apple
leaf there may be found as many as Cne
hundred thousand OF these openings.
A collection OF Eskimo works of art,
obtained by Assistant Superintendent
Edwards Of the Greenlandcr mines,
includes greensboro candle-stick', ciga
holders, ash-rccciyers, anchors, paper
weights, etc. The objects show coa-
siderable skill, though, tho Eikimo's
having no use for ornamental art, they
were made to sell to Danisi rulers.
A Lyons anatomist has examined the
skeletons of cighty-six monkeys-chim
panzees, gorillas and oraas-outangs-
and has found diseases OF the bone to be
as frequent as in man, and of strlkingly
similar character. There were several
cases of ephiphyses, five Of fracture, five
of deformed joints, and eight of o5silicl
ton. Fractured bones had knitted to-
gether perfectly.
The recent improvement made in Pho
tography aud its use in astronomy has
proved most valuable to the study OF thai
science. A dry plate can be cxpo'el for
suitable length Of time in the telescope
and the image thus obtained Will contain
the details Of nebula, even where the
amount of light would be imperceptibL
to the naked eye, thus producing al i'm
age far more useful and accurate than
could ever be obtained by drawing.
Engraving on metal is now carried to
wonderful pitch OF excellence, but ac
cording to accounts from Russia further
remarkable strides are being made IN
the art in that country. A Russian
electrician is said to have devised a pro-
cess of photographing and engraving on
metals by means of electricity, by which
the etching method is entirely dispensed
with. The process has been patented,
and the electrician is understood to be
about to take a trip abroad for the pur'
nose of disposing OF his invention.