oz. indigo extract.

_Slate Grey_.--Another method is to boil the wool with 10 lb. logwood,
2 lb. Glauber's salt and 1 lb. sulphuric acid for three-quarters of an
hour, then lift, add 1 lb. copperas, and re-enter the wool, working at
the boil for three-quarters of an hour, then lift, wash and dry.

_Reddish Grey_.--Boil for an hour with 10 lb. fustic, 11 lb. cutch,
1/2 lb. bichromate of potash and 1-1/2 lb. copperas.

_Pearl Grey_.--Give a light blue ground in the indigo vat, then dye in
a new bath with 2 lb. muriate of tin and 3/4 lb. cochineal, working at
the boil to shade.

_Silver Grey_.--Prepare a bath with 3/4 lb. tannic acid; work for (p. 098)
an hour in a warm bath, then sadden with 3 lb. nitrate of iron to shade,
then lift, wash and dry.

_Pearl Grey_.--Prepare a bath with 3 lb. fluoride of chrome and 4 lb.
Alizarine Bordeaux B. Enter into the bath when cold, then heat to the
boil and work for one and a half hours, then lift, wash and dry.

_Silver Grey_.--The dye-bath is made with 3 lb. fluoride of chrome and
6-1/2 oz. Alizarine Cyanine G G, the dyeing being done as in the last
recipe.

_Greenish Grey_.--A good shade is dyed with 3 lb. fluoride of chrome,
4 oz. Alizarine Bordeaux B, and 4 oz. Diamond Flavine G, working as
given in the above recipe.

_Grey_.--Give a pale blue bottom with an indigo vat, then dye in a
bath containing 1 lb. fluoride of chrome, 1/2 oz. Diamine Fast Red F,
and 3/4 oz. Anthracene Yellow C; work at the boil for one hour, lift,
wash, and dry.

_Dark Grey_.--A very fine dark grey, almost approaching a black is
obtained by the following plan: bottom the wool with a medium blue by
means of the indigo vat, dye in a bath containing 1 lb. fluoride of
chrome, 3 oz. Diamine Fast Red F, and 3 oz. Anthracene Yellow C.

_Slate Grey_.--A good slate grey of a slightly greenish tone can be
dyed in a bath of 5 lb. acetate of ammonia, 3/4 lb. Acid Blue 4 S, and
1/4 lb. Titan Brown R, working at the boil to shade.

_Pale Slate Grey_.--The dyeing is done in a bath made with 5 lb.
acetate of ammonia, 5 oz. Acid Blue 4 S, and 1-1/2 oz. Titan Brown R,
working at the boil for one hour.

_Silver Grey_.--A very nice shade is dyed with 3 oz. Acid Blue 4 S,
1/4 oz. Titan Red, and 5 oz. acetate of ammonia.

_Silver Grey_.--A shade similar to the last is dyed in a bath
containing 10 lb. Glauber's salt, 5 lb. bisulphate of soda, and
3/4 oz. Anthracite Black R. By adding a little Thiocarmine R the