Blue, which is very light, lead red, which is light, rose, which is light, mountain green, slate green, purple, aurum musicum, lead white, lead yellow, all these colors you shall apply as thinly as you can, but still as an even coat of color. / Also, you shall grind well all colors, which are to be ground, as it is written before. / Also. you shall see to it, that the colors are well tempered with gum water, not too strong and not too weak. / Also. you shall apply all colors, shade and heighten them, with the brush, except in the checkered backgrounds, which you shall apply with the pen and heighten with the brush. Otherwise, all foliage or flower work with a brush large or small. / Also you shall not shade or heighten any color unless the previous coat of color is already well dried, so that no color will run into another one. / Also you shall not apply any colors, unless you have first moistened the colors well, so that they are wet through and through in thickness, as is written before. Watch that you don't make the gum water too strong, and you shall keep it at all times clean and pure from dust and not cover it. Four checkered backgrounds, from which the majority of all checkered backgrounds are derived. §

Here you shall watch, when you want to make a checkered background in letters or pictures, you shall first outline the checkered background, and the more even the better it will be with a thin, watery ink, which is not too strong.

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