_Red._—Boil an ounce of cochineal in half a pint of water for 5
minutes, add an ounce of cream of tartar, half an ounce of pounded
alum, and boil them on a slow fire 10 minutes; if it shows the colour
clear on white paper, it is sufficient. Add two ounces of sugar, and
bottle it for use.
_Blue._—Put a little warm water in a plate, and rub an indigo-stone
in it till the colour has come to the tint required.
_Yellow._—Rub with some water a little gamboge on a plate, or infuse
the heart of a yellow lily flower, with milk-warm water.
_Green._—Boil the leaves of spinach about a minute in a little water,
and, when strained, bottle the liquor for use. In colouring refined
sugars, taste and fancy must guide.