bric, therefore, contains the two kinds of cotton,
or the two kinds of wool, they will not dye up evenly.

In the preceding sections brief notes have been given about the
principal methods of dyeing wool, with some indications of the dyes
which can be used under each method. In the succeeding sections will
be given a number of recipes showing how, and with what dye-stuffs,
various colours, shades and tints can be dyed upon wool. It will be
understood that these recipes are applicable to all kinds of woollen
fabrics, loose wool, slubbing, yarns in any form, woven worsted or
woollen cloths, felts of any kind, etc., all these different forms
require handling in a different way; it would not do, for instance, to
treat a quantity of slubbing in the same way as a piece of worsted
cloth, while hanks of yarn require a different mode of handling to a
quantity of hat bodies. The different kinds of woollen fabrics require
to be dealt with in different kinds of machines, and this has already
been dealt with in the chapter on Dyeing Machinery and Dyeing
Manipulations.

To describe and illustrate the application of all the various woollen
dye-stuffs, whether of natural or artificial origin, and to show the
great variety of shades, etc., which can be obtained with them, either
all one or in combination, would require not one, but many volumes of
the size that this present work is intended to be. Therefore, it
becomes necessary to make a selection from the best-known and most
used of the various dyes, and illustrate their application by a number
of recipes, all of which, unless otherwise stated, are intended to be
for 100 lb. weight of woollen material of any kind. It may also be
pointed out that, as a rule, the recipes may be applied to the dyeing
of fabrics made with other animal fibres than the wool of the sheep,
as, for alpaca, cashmere, camel-hair, hare or rabbit fur, etc., (p. 083)
inasmuch, as, with the exception of silk, all animal fibres practically
possess the same dyeing properties.

It will be convenient to point out here that a very large proportion
of the shades dyed on wool and other fabrics are obtained, not by the
use of a single dye-stuff, although this should always be done,
whenever possible, but by the combination of two or more dye-stuffs
together in various proportions. It is truly astonishing what a great
range of shades can thus be dyed by using two or three dyes suitably
mixed together, and one of the th