e dye-bath, and 16 lb. sumac extract and 2 lb. tartar emetic in the
fixing-bath.

_Blue Black._--3-1/2 lb. Janus black I and 1/2 lb. Janus black II in the
dye-bath, and 16 lb. sumac extract and 2 lb. tartar emetic in the
fixing-bath.

_Dark Brown._--2-1/2 lb. Janus brown B, 1 lb. Janus black I, 3-1/2 oz.
Janus yellow G and 5 oz. Janus red B in the dye-bath, with 16 lb. sumac
extract and 2 lb. tartar emetic in the fixing-bath.

_Drab._--1-1/2 oz. Janus yellow R, 3/4 oz. Janus red B, 1 oz. Janus blue
R and 1/4 oz. Janus grey B B in the dye-bath, and 4 lb. sumac extract
and 1 lb. tartar emetic in the fixing-bath.

_Grey._--5 oz. Janus blue R, 3-1/4 oz. Janus grey B, 1-1/2 oz. Janus
yellow R and 1/4 oz. Janus red B in the dye-bath, with 4 lb. sumach
extract and 1 lb. tartar emetic in the fixing-bath.

_Nut Brown._--1 lb. Janus brown R, 8 oz. Janus yellow R and 1-1/2 oz.
Janus blue B in the dye-bath, and 8 lb. sumac extract and 1 lb. tartar
emetic in the fixing-bath.

_Walnut Brown._--3 lb. Janus brown B, 1 lb. Janus red B, 1 lb. Janus
yellow R, 1-1/4 oz. Janus green B in the dye-bath, with 8 lb. sumac
extract and 1 lb. tartar emetic in the fixing-bath.

_Crimson._--2-1/2 lb. Janus red B and 8 oz. Janus claret red B in the
dye-bath, with 8 lb. sumac extract and 1 lb. tartar emetic in the
fixing-bath.

_Dark Green._--1-1/2 lb. Janus green B, 1-1/2 lb. Janus yellow R and 8
oz. Janus grey B B in the dye-bath, with 12 lb. sumac extract and 1-1/4
lb. tartar emetic in the fixing-bath.

_Chestnut Brown._--1 lb. Janus brown R and 1 lb. Janus yellow R in the
dye-bath, and 8 lb. sumac extract and 1 lb. tartar emetic in the
fixing-bath.

Before the introduction of the direct dyes the method usually followed,
and, indeed still used to a great extent, is that known as cross dyeing.
The goods were woven with dyed cotton threads of the required shade, and
undyed woollen threads. After weaving and cleansing the woollen part of
the fabric was dyed with acid dyes, such as Acid magenta, Scarlet R,
Acid yellow, etc. In such methods care has to be taken that the dyes
used for dyeing the cotton are such as stand acids, a by no means easy
condition to fulfil at one time. Many of the direct dyes are fast to
acids and, therefore, lend themselves more or less readily to cross
dyeing. For details of the dyes for cotton reference may be made to the
sections on dyeing with the direct colours, page 85, etc., while
information as to methods o