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21. 
Light Blue. 
Light blue is a restful and retiring color. It has the effect of mak- 
ing objects appear more distant than they 
are. This is why it enters largely into the 
decoration of ceilings and small rooms. It 
is one of the cool colors, which puts it in 
demand for summer draperies. White is 
also a cool color and forms an agreeable 
harmony with blue, without the assistance 
of other colors. The tints of blue are more 
satisfactory for elementary designing that the shades of blue, and 
those that incline towards light gray in tone are more pleasing than 
those that are intense and cold in color. 
To fold the Square. 
Bring the opposite corners of the square together, and keep them 
in place with a touch of glue; then mount the triangle upon the tinted 
surface as in the last exercise. 
To draw the Exercise. 
Outline the square, than draw its diagonal from the upper right to 
the lower left hand corner, and strengthen the top and left side lines 
of the square. 
Light Violet. 
Violet is a variety o f purple ; unfortunately the color of purple is 
somewhat indefinite. It is said to be red 
graduated with blue. While in violet the 
red and blue are equally blended. Violet 
is therefore bluer than purple. Violet is 
one of the prismatic colors, and is best 
illustrated by the aid of a prism. It may 
also be shown by mixing a water solution 
of aniline purple and adding to it a little aniline blue. 
Light violet is a tint of violet, and may be shown by sufficiently 
diluting a water solution of violet. 
There are several flowers that approximate this color, of which the 
violet, some of the deeper colored lilacs, heliotrope, hyacinth, some 
asters, the iris, morning-glory, sweet pea, and several less common 
flowers are illustrations. 
To fold the Square. 
First fold the square for its diameters, then open it and fold each 
corner to the center point; fasten them there with slight touches of 
glue, and mount the pattern upon the tinted surface with its folded 
side up. 
To draw the Exercise. 
Draw the square. Connect the adjacent ends of the diameters 
with straight lines. 
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