Transparent water colors are put up in boxes containing nine colors,
and as you reduce them in the proportion of one part of color to eight
of water, a single box will last a long time. They can be bought of
almost any dealer in artist's materials, and are designated as
Florentine, Egyptian, Grecian, and by other names. Care should be used
in procuring those which are pure and fresh. The colors are yellow,
blue, rose, violet, magenta, flesh, brown, gold and black. The labels
on the bottles give directions for mixing.