pes will (p. 154)
give some idea of the nature of the shades which may be obtained
from them, while later on their use in combination with other dyes for
the production of compound shades will be shown.

_Bright Blue_.--Prepare a dye-bath with 2 lb. Patent Blue N, or Patent
Blue superior, 10 lb. Glauber's salt, and 2 lb. sulphuric acid,
working at the boil for one hour.

_Bright Greenish Blue_.--Use 2 lb. Patent Blue V, 10 lb. Glauber's
salt, and 2 lb. sulphuric acid.

_Royal Blue_.--Use 2 lb. Patent Blue B, or 2 lb. Patent Blue J (No.
3), 10 lb. Glauber's salt, and 2 lb. sulphuric acid. Patent Blue J
(No. 3) gives slightly more violet shades than Patent Blue N, but
there is not much difference between them.

_Saxony Blue_.--Use 2 lb. Patent Blue J (No. 00), 2 lb. sulphuric
acid, and 10 lb. Glauber's salt. Patent Blue J (No. 00) dyes shades
very closely resembling those dyed with indigo extract, and where the
latter is used in the dyeing of compound shades the former might be
substituted.

_Brilliant Royal Blue_.--Prepare a bath with 1-1/2 lb. New Victoria
Blue B, and 10 lb. Glauber's salt. Enter at about 100 deg. F., then
raise to the boil and work for one hour. This gives a very brilliant
shade of blue of a violet tone.

_Sky Blue_.--Prepare a dye-bath with 1-1/2 oz. New Victoria Blue B and
2 lb. Glauber's salt, working in the manner described in the last
recipe.

_Dark Blue_.--Prepare a dye-bath with 1-1/2 oz. Acid Violet 5 B, and
1-1/2 lb. Fast Green Bluish, 10 lb. Glauber's salt, and 2 lb.
sulphuric acid, working at the boil to shade; then lift, wash and dry.

_Deep Blue_.--Make a dye-bath with 4 lb. Chromotrop 6 B, 10 lb.
Glauber's salt, and 4 lb. acetic acid. Work for one hour at the boil;
then lift, add 2 lb. bichromate of potash and 3 lb. acetic acid,
re-enter the goods and work for one hour longer; lift, wash and dry.

The blues produced from the Chromotrops according to the last (p. 155)
recipe are full, solid-looking shades, and have a great degree of
fastness to milling and light. Some other examples showing the
production of blue shades from the Chromotrops will be given later on.

_Violet Blue_.--Prepare a dye-bath with 2 lb. Victoria Violet 8 B S,
10 lb. Glauber's salt, and 2 lb. sulphuric acid, working at the boil
to shade; then lift, wash and dry.

_Deep Blue_.--A fine deep blue is dyed on wool from a bath containing
6 lb. Victoria Violet 8 B S, 10 lb. Glauber's salt, and 2 lb.
s