l Green B, 10 lb.
Glauber's salt, 15 lb. bisulphate of soda, and 1 lb. copperas, working
at the boil to shade.

_Bright Green_.--Make the dye-bath with 10 lb. Glauber's salt, 5 lb.
bisulphate of soda, and 1-1/2 lb. Acid Green B, working at the boil to
shade.

_Emerald Green_.--The dye-bath is made with 1/2 lb. Acid Green B,
10 lb. Glauber's salt, and 2 lb. sulphuric acid. The wool might also
be previously mordanted with 15 lb. hyposulphite of soda, and 5 lb.
sulphuric acid at the boil for one and a half hours, when it will give
a bright shade of emerald green.

_Grass Green_.--Dye a medium indigo bottom on the wool from the vat,
then dye in a bath with 1 lb. Milling Yellow O, 5 lb. Glauber's salt,
and 5 lb. bisulphate of soda; lift, wash and dry.

The last recipe shows the use of the indigo vat in giving the blue (p. 129)
constituent in dyeing greens and other compound colours on wool. This,
while being a very effective method of dyeing, yet necessitates two
operations which add very materially to the cost of dyeing such
shades, hence it is not used for dyeing low class woollen fabrics, but
for better class goods it is frequently adopted, fast colours being
thus obtained.

In thus using the indigo vat as a bottom dye regard to the properties
of indigo must be paid in carrying out any subsequent dyeing
operation, so that the indigo on the fibre be not destroyed. As a
rule, the indigo will resist any ordinary baths made with Glauber's
salt, acetate of ammonia, sulphuric or acetic acids, but it will not
resist mordanting operations with bichromate of potash, for the latter
salt destroys the indigo. Fluoride of chrome, chrome acetate, or alum,
may be used as mordants if necessary.

_Pale Sea Green_.--The dye-bath contains 1 oz. Cyanine B, 1 oz. Azo
Yellow, 5 lb. Glauber's salt, and 1 lb. sulphuric acid.

_Moss Green_.--The dye-bath is made with 1/2 oz. Chromotrop 2 R, 2 oz.
Cyanine B, 4 oz. Fast Acid Blue R, 3-1/4 oz. Azo Yellow, 5 lb. acetic
acid, and 10 lb. Glauber's salt.

_Deep Moss Green_.--Prepare the dye-bath with 4-1/2 oz. Cyanine B,
9 oz. Fast Acid Blue R, 4-1/2 oz. Azo yellow, 1/2 oz. Chromotrop 2 R,
5 lb. acetic acid, and 10 lb. Glauber's salt.

_Blue Green_.--A very fine shade of blue green is dyed with 9-1/2 oz.
Cyanine B, 1-1/4 lb. Fast Acid Blue R, 4 oz. Azo Yellow, 5 lb. acetic
acid, and 10 lb. Glauber's salt.

_Emerald Green_.--A pale, but brilliant shade of green is dyed with
1-1/4 oz. Patent