This plate was planned especially for arithmetic lessons, as it shows
in the sketches the various processes through which the cotton passes
before reaching the retailer, thus suggesting a number of practical
problems. It may be used quite as well in geography, history, and
nature study.
Spot 1 is produced by massing a bit of chalk and then rubbing it into
the desired shape by the use of the finger tip. The pod is drawn with a
short stick of charcoal, used in the same manner as the chalk.
No. 2 shows the stroke for the sky and horizon, and has already been
described in many other lessons.
To produce the effect shown at No. 3 use the side of a short piece of
chalk, and with a rather irregular stroke draw the twigs and stems.
Accent the spots for the cotton balls.
In the other small sketches the strokes are so evident that they
hardly need description. A white, smooth sky, erased where the mills
and chimneys appear, will produce the effect in the lowest drawing. A
little charcoal may be added for the darkest tones, a stroke of the
eraser for the smoke, and little touches of chalk for the windows.
[Illustration: Plate 28]