Colour.
hot and red on the one hand, nor tending to a coarse "peacock" green-blue on the other, is perfect in all its tones, and of all colours the safest to use in masses. Its modifications to purple on one side and green-blue on the other are also useful, though to be employed with moderation. There are endless varieties of useful reds, from pink, salmon, orange, and scarlet, to blood-red and deep purple-red, obtained by different dyes and by different processes of dyeing. Kermes, an insect dye, gives a very beautiful and permanent colour, rather scarlet. Cochineal, also an insect dye, gives a red, rather inferior, but useful for mixed shades, and much used on silk, of which madder and kermes are apt to destroy the gloss, the former a good deal, the latter slightly. Madder, a vegetable dye, "yields on wool a deep-toned blood-red, somewhat bricky and tending
