The Big Stone Gap post. [volume] (Big Stone Gap, Wise County, Va.) 1892-1928, 1894-11-15
SCIENCE ANr lf,snusTRY.

80
g Ken fists say that fopr million
WEBS spssza By young ptders world not
I3rISsl traftd as great In a lame ter as a
hs.is From the human head.
~ on tyr yields sixteen sls1lcs OF
blue, the same number 81 yellow sints,
twelve Of orange, nine OF violet and
numerous other colors and shades.
I'm 1850, there were a.ioO, 9o77 farms
in the United States: in 1899 there were
1864 641. In $50. the. improved acres
We're ss4 .0sas;; in 1890 Iiicy amounted
to 3s77.6I8, Us.
-The director CT The mint estimates
the value Of the worlds output Of gold
in 1895 at s. 55, So, 900. He believes the
output OF 1894 and 1895 win amount
respectively, to Sl6s,2o9,oos and $ls3.-
$4,000.
I'm Australia women are generally
employed as railway station agents.
In many of the small stations q woman
Is IN sole control, being ticket seller,
telegraph operator and baggage mis-
tress They receive about fifty cents a
day.
In 1893, there were brought To this
country diamonds of tie value OF $l4,
62o,6G0. The dianond-cntters OF the
United States arc ranked among the
best in the world. The first cutting
machine was invented here, in 1872
The great pitch lake of Trinidad
covers ninety-nine acres and contains
millions of tons OF so-called pitch.
This is IN reality a mixture Of asphalt
and Oil, which is continually oozing up
through cracks aud crevices beneath
the pressure of the strata Of rock above.
Water at high temperature cannot
be raised any considerable distance by
suction, as the vapor discharged from
the water so heated follows the re-
ceding pistons of the pump and resists
the entrance of the water; consequently,
to pump hot water always place the
supply above tho pulnp, So that it will
be supplied from head.
M Louis Boutan has succeeded in
taking some beautiful photographs OF
the bottom of the sea by the aid OF
newly-invented lamp for burning mag.
nesium powder under the water. He
first descends to the bottom and selects
his views, next has his apparatus low
cred to him, then arranges the same
for several flashes, enabling him to
take as many successive pictures.
The toad is a higher animal than
the frog, because it gives birth tolit-
tie air breathing toads, whereas the
frog lays eggs that produce tish-lil5e
tadpoles But the frog is in certain
respects the most wonderful creature
in the world. Think Of the vegetable
eating fish with gills that turns into
an airrbre,rthing land animal, develop
ing teeth ana becoming a carnivorous
quadruped. That is the life history OF
the frog.
Snakes have their usefulness IN
the world. They are scavengers OF
swamps and morasscs where other ami
mails of size are unable to penetrate or
exist It is in the tropics, Of course,
that serpents chiefly abound. AL
snakes are of tropical origin, but some
species have spread into cooler latl-
tudes. In very cool countries there are
no snakes. Contrary to the popular
belief, there are some snakes in ire
land. but they are very rare
"A mechanical fluid is the recent in
vention of an American engineer. 1t
is a mass of hard steel balls OF two
sizes, one-eightll and one-fourti1 OF an
inch in diameter, respectively. Under
pressure this mass flows and transmits
pressure in all directions like fluid.
The device is calculated for use wher-
ever fluid pressure is desired without
leakage. and it has already been en-
ployed for tightening The ,brasses OF
connecting rods, pocket at the side
being filed with the balls and pressure
applied with q set screw.
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