Iron County register. [volume] (Ironton, Iron County, Mo.) 1867-1965, 1882-05-25
SCIENCE AND INDUSTRY.

Paris scientists recently discussed
the effect of the electric light on the eye,
and almost unanimously decided that it
is harmless.
The Scientific american mentions a
recently patented device for extingaish-
ing kerosene lamps, which consists of a
shut-off for the air supply, the action
becoming automatic if the lamp is over
turned.
News from afar reports that Ger
man chemist residing in Russia has dis
covered method of solidifying petro-
leum SO that it may be more cOnven-
iently transported and afterward ique-
fed for use
Paper has gone into use in some OF
the restaurants of Berlin as plates for
dry or semi-dry articles of food. There
is no reason why cheap paper cups
properly glazed should not be employed
at railroad stations, so that passengers
could take a cup of coffee along with
them instead of hastily drinking it at a
lunch counter.-Deaarer Tribune.
"A chemical analysis of an unpleas-
ant-tasting bread recently made by a
German chemist revealed ~ per cent.
of glucose, and 1913 per cent. of dex-
trine. This was accounted for not on
the ground of adulteration, but by a
kind of "malting'' of the grain, which
was injured by wet weather during the
season of 1880.
Recent observations on light con-
Quoted on the summit of Mount Whitney
yield the curious result that the sun is
in reality of a bright blue color, and
would so appear to the eye were it not
for the filtrations of the light rays
through our atmosphere, which by its
different action on various rays finally
blends them into white light.-N. Y.
Post
1t is stated that very simple and
neat improvement has been effected in
preparation of the tin cans now so ex-
tensively used for preserved foods. The
body of the can has beveled rim, upon
the slope of which the cover is soldered.
When the cover is smartly tapped around
the edge, it is expanded and the solder
ioint broken by the wedge action of the
begel. The can is thus opened without
injury to the lid, while the present
inconvenient process for cutting open
these air-tight cases is entirely avoided.
The improvement involves no additional
cost, and the soldering is applied exter-
nally-- Chicago Journal.
The Government method prescribed
for cleaning brass, and in use at all the
United States arsenals, is claimed to be
the best in the world. The plan is to
make q mixture of one part common
nitric acid and one-half part sulphuric
acid in a stone jar, having also ready
pail of fresh water and a box of sawdust
The articles to be treated are dipped
into the acid, then removed into the
water, and finally rubbed with sawdust.
This immediately changes them to a
brilliant color. If the brass has become
greasy, it is first dipped in strong
solution of potash and soda in warm
water; this cuts the grease, so that the
acid has free power to act.-N. Y. Sun.
The Page Patent Brick Company,
of Rochester, with capital stock of
$50, 900, has been Incorporated. The kiln
to be used is the invention of G.. ID.
Page, of that city. 1t is seventy feet in
height, and twenty feet from the ground
are fire places. 1t is continually taking
in raw brick and turning them out ready
for use, the lower part of the kiln being
so arranged that the pressure of the
brick above forces out the finished brick
in a continuous stream down an inclined
plane and thence upon a horizontal shoot.
They pass along the shoot until the
force required to push the column in a
horizontal direction equalizes the pres
sure of the descending column of brick.
(N. " Erpress.