Iron County register. [volume] (Ironton, Iron County, Mo.) 1867-1965, 1882-05-11
SCIENCE AND INDUSTRY.

All the various mines and coko3
works along the New River. West Viz!
ginia, are in full blast, with plenty 81
orders for coal and coke. Business
generally is going along finely, with APP
parent prospects of continuing to do so
for some time.
German settlers in the Koanok0
Valley, of Virginia, have given by their
example wonderful impulse to the fruit
growing business. The farmers in Bot
etourt and Roanoke are setting out fruit
trees by the thousand.
Henry Henkle, Rochester N. "
inventor, Is engaged in project to gen
crate electricity on an immense scale
and transmit the electric current to any
point desired for Illuminating and other
purposes.
Mr.. John r. Gibson, of Hexam,
England. lately described how he sue
ceeded in taking the photograph of .
flash of lightning. He used Swans
plates, backed with red paper. Tho
lens employed was . haf-inch rapid
symmetrical, with the largest stop bus
one. -l
-Coal-tar seems to possess marvel
Gus potentiality. Already it has been
compelled to yield, under the hand Of
the chemist, carbolic acid, picric acid
parafine, all the aniline dyes, artificial
madden, artificial indigo, ETC., and now
it promises to be source of quinine; q
substance called chinoline, closely ro-
sembling quinine, has been manufao-
tured from it. Il is believed that chem!
lists viii soon be able to produce pure
quinine itself.
The London Globe announces that
the Sultan and the wise men Of Turkey
are about to enter upon the study q
astronomy. Constantinople is to h4yol
an observatory with all suitable instru-
ments. 1t seems that the Turks want to
know about this revolution of the plan1
cts and such things. The Moors in
Spain were excellent astronomers ana
mathematicians; but the Turks haSes
until recently regarded astronomers as
wonder-workers, who should be viewed
with suspicion. III
A mode has been described for. de-
monstrating that yellow color can b
formed by combining red and blue
This consists in mixing red solution
of chromate Of potash with blue solu-
ton of litmus, and, on filing it into .
glass cell of q certain thickness, the
light transmitted through it is seen to
be yellow. Plates of glass coated with
gelatine impregnated with chromate Of
potash, placed side by side with plates
coated with galatine impregnated with
iitmus, also transmit yellow light. It is
found however, that the eyes of differ
emit persons vary not little in their
power of appreciating the tinge of the
transmitted yellow.-N. Y. Graphic.
The eighty-ton gun at Woolwich
has proved its capacity not only to-
throw great ball an'immense distance,
but that its accuracy is remarkable. In
one instance the charge of powder used
was $40 pounds, and the weight of the
shot-the latter being four feet in length
and studded with thirteen rows of four
studs each-was loo pounds. On the
gun being fired at an elevation of seven
degrees, the shot first grazed the ground
at the distance of 1857 yard, or more
than two miles and half, and then
went ricochetting along several miles
further. The time of fight till it first
struck was Ills seconds, and the report
made by this vast piece of ordnance is
described as having been tremendous
". 7. Sun. {F