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From blue and yellow, greens of all shades From red and blue, purples of all kinds are formed

to dye different shades of green.

Green is distinguished by dyers into a variety of shades, according to the depth, or the prevalence of either of the component parts. Thus, we have sea-green, grass-green, pea-green, &c.

Wool, silk, and linen, are usually dyed green, by giving them first a blue colour, and afterwards dying them yellow, when the yellow is first given, several inconveniences follow: the yellow partly separates again in the blue vat, and communicates a green colour to it; thus rendering it useless for every other purpose, except dyeing green. Any of the usual processes for dyeing blue and yellow, may be followed, taking care to proportion the depth of the shades to that of the green required.

When sulphate of indigo is employed, it is usual to mix all the ingredients together, and to dye the cloth at once; this produces what is known by the name of Saxon, or English green.