horizontal wheel, holds his brush full of gold
against it, and turns the wheel slowly. Sometimes the outlines of a
design are printed and the coloring put in by hand. When broad bands
of color are desired to be put around a plate or other article, the
decorator sometimes brushes on an adhesive oil where the color is to
go, and paints the rest of the plate with some water-color and sugar;
then when the oil is partly dry, he dusts on the color in the form of
powder. A plunge into water will wash away the water-color and leave
the oil with the powder sticking to it. Shaded groundwork is made with
an atomizer. Indeed, there are almost as many methods of decorating
wares of clay as there are persons who work at it. The results are
what might be expected from the prices; some articles are so cheap and
gaudy that any one will soon tire of them. Others are really artistic
and will be a "joy forever"--until they break.

VIII

HOW THE WHEELS OF A WATCH GO AROUND

If an electric automobile could be charged in fifteen seconds and then
would run for forty hours without recharging, it would be looked upon
as a great wonder; but to wind a watch in fifteen seconds and have it
run for forty hours is so common that we forget what a wonder it is.
When you wind your watch, you put some of the strength of your own
right hand into it, and that is what makes it go. Every turn of the
key or the stem winds up tighter and tighter a spring from one to two
feet long, but so slender that it would take thousands to weigh a
pound. This is the main spring. It is coiled up in a cup-shaped piece
of metal called a "barrel"; and so your own energy is literally
barreled up in your watch. The outer end of this spring is held fast
by a hook on the inside of the barrel; the inner end is hooked to the
hub of a wheel which is called the "main wheel," and around this hub
the spring is coiled.

This spring has three things to do. It must send the "short hand,"
or hour hand, around the dial or face of the watch, once in twelve
hours; it must send the "long hand," or minute hand, around once an
hour; and it must also send the little "second hand" around its own
tiny circle once a minute. To do this work requires four wheels. The
first or main wheel is connected with the winding arrangements, and
sets in motion the second, or center wheel, so called because it is
usually in the center of the watch. This center wheel revolves once
an hour and turns the m