The Daily Missoulian., 1910-12-19


paints. White lead is an insidious
poison, the colics and paralyses which
attack those working in it being
recognized in history for many CEN
turies. Machinery is therefore used
as much as possible In the process Of
it's manufacture. For this reason also
various governmental structures have
Deen placed upon the manufacture
and use Of white lead by states in
this country and by foreign nations.
France set about some years ago
business, and it is said that as a
result of various steps that have been
taken, In few years white lead will
totally disappear from France.
Carbon is the basis of all black
paint, lamp black being the form gen.
orally used. This is obtained in the
form of SCOT deposited bv burning
oils, fats, resin and similar substances
under certain conditions. There is
some black paint made from charcoal
and bones, and a particularly fine
black IL obtained from lees and
pressed grapes left In, wine making
in Europe. Most printing inks are
made from SCOT black. India ink and
other fine inks used by artists are
made by special processes, the best
India ink coming from China, where
SCOT. glue and camphor are used in
Its manufacture. The artists ivory
black is made from ivory.
ultramarine has a most interesting
history. As caeruleum, an ancient
Egyptian pigment, still seen in the
ruins OF Pompeii. Cairo and Alex
andria, where 1t has withstood the
action Of time for Is centuries or more,
this substance was made by powder
ing lapis lazuli, precious stone,
found In the Orient. 1t was worth
many times its weight in gold 1t is
only within the last 25 years that it
has been manufactured from the base
silica, calcium. copper and iron oxides.
The discovery of coal tar colors is
the great romance of modern science.
Ages ago the gaudy flowers and
plants that grew on this hot, moist
planet decayed, and being covered
with rock, were converted by pressure
into coal. 1t Is only for two CEN
turies that man has known how to
extract from coal the heat which was
stored up in it during the carbon
ferrous age. The latent light and
color in the black diamond needed
only the magic touch of the synthetic
chemist to be released. This touch
was not given until so years ago,
when a foreigner discovered the
secret. Now from the grimy refuse of
coal heaps more than 400 coal tar
colors have been rescued, which are
used in the manufacture of so-called
lakes"
Some Of the giant railroad bridges
of the country require hundreds and
thousands of gallons of paint to pro-
tect them from rust and other troubles
coming from exposure to the atmos-
phere. The reason all railroad blidge
formerly We're PAINTED red was be-
cause for Tong time it was believed
that red paint was better for struc-
tural steel than any other kind. Then
someone thought to make exhaustive
that red was no better than some
other colors. 1t is said that when
the authorities found that the salt air
of New York harbor was eating away
the bronze of the great goddess of
liberty, they decided to give the
majestic lady a dress that would
protect her. and they spent $4,000 for
the drapery of paint with which she
was clothed
N1NsAe ffoe, r,E ,%vry 1cxy
abundant reason for complaining
about the decision OF a Chicago Judge
in the case of woman sign painter.
A few years ago the people going to
work one morning were astonished to
see a woman goWned In immaculate
white sitting in a trapeZe some 200
feet above the sidewalk, painting a
huge sign. Her hair was flowing
loosely over her shoulders, and soon
her and marveling at her temerity, no
less than wondering at her invasion
of this peculiarly masculine field OF
endeavor. The police did not attempt
to dispense the mob but arrested her
and had her fined. But she had sue
ceeded in advertising her wares, for
which she received sum that made
the notoriety worth while.
The production of mineral and earth
paints in America in 1900 was over
$4,000 tons. valued at $613,133. Gen.
orally speaking, the mineral colors are
more valuable to the painter and the
vegetable pigments to the dyer. Even
skinned milk has been called upon
to furnish casein for the manufac-
ture of water paints. Mineral paints
are used in decorating china, the color
being burned into the clay. Oil paints
or stains are generally used for out
door work. but the use of water paints
is growing rapidly. as they are being
perfected so as to withstand chemical
and atmospheric action.
Tomorrow-"New from Toyland."
1.-Planning the Toys.