The same can be done with a square piece of cloth, well wetted: this will shade in an interesting manner, if held in the middle and dipped slowly and gradually. Further developments of this work, known as “Tied and Dyed Work,” are described in a following chapter. Experiments with the Secondary Colors After the above methods have been fairly mastered, the student should make some experiments in which two of the primary colors are mixed together, or better, superimposed one on the other to show the “secondary” shades produced by these combinations. This can be done by mixing the colors two by two, until three baths of green, violet, and orange respectively are formed as before. Then try dyeing first for even colors and later for the shaded effects. The most interesting experiments in this line are made by the so-called “double shading” method. Here the same baths of straight primary colors—red and blue and yellow—should be used as in the earlier experiments; but the goods are first dyed in one bath, and then after-dyed or “topped” in a second color. A scarf of cheesecloth is good for a first attempt. This, well wet, is held at one end and very slowly lowered into the hot bath, until all but about six inches of the entire length is immersed in the dye. This much is left free from color. Try a blue dye color for this series of shades, fading evenly and smoothly from the deepest full blue at one end to a pure white at the other. After rinsing with water till the bleeding is over, reverse the scarf, holding it by the opposite end, and lower it slowly and gradually into a bath of, let us say, yellow, keeping about six inches out of the dye as before. This will produce a scarf shaded from clear blue at one end to clear yellow at the other end and showing the whole range of green shades produced by mixing these two colors, along its length. Similar tests made with red and blue, and then with red and yellow, will emphasize to the student’s mind the fact that green is formed from blue and yellow; violet from red and blue; and orange from red and yellow; and that each combination gives an infinite variety of intermediate shades, according to the comparative strength of the individual dyes. Matching Colors