s;
lift and wash.

_Fast Bright Olive_.--Boil for one hour upon a bath of 50 lb. Fustic,
3 lb. Bluestone, 2 lb. tartar, 1 lb. copperas, 2 oz. indigo extract.

_Yellow Olive_.--Prepare a bath containing 10 lb. Glauber's salt,
1-1/2 lb. Anthracene Yellow B N, 2 lb. extract of indigo, 3 oz. Orange
E N Z, 4 lb. sulphuric acid. Enter yarn at 160 deg. F., give three turns,
raise the temperature slowly to the boil, turn to shade; lift, and
wash.

_Olive Green_.--Mordant with 2 lb. potash bichromate, 1-1/2 lb.
sulphate of copper, 1/2 lb. sulphuric acid. Boil for an hour and a
half. Dye in a bath with 8 lb. Fustic extract, 5 lb. Sumac, 5 lb.
Logwood, at the boil for an hour and a half.

_Olive Bronze_.--Make the dye-bath with 10 oz. Fast Yellow S, 5 lb.
Indigo extract, 5 oz. Orange E N Z, 4 lb. sulphuric acid, 10 lb.
Glauber's salt. Enter yarn at 140 deg. F., work for a few minutes, then
bring slowly to the boil and work to shade.

_Emerald Green_.--Prepare the dye-bath with 1 lb. Acid Green B N, (p. 136)
2 oz. Naphthol Yellow S, 10 lb. Glauber's salt, 2 lb. sulphuric
acid. Enter cold, then raise to the boil and work for a quarter of an
hour; wash and dry.

_Invisible Green_.--First mordant the wool in a bath containing 3 lb.
bichromate of potash, 1-1/2 lb. copper sulphate, 1 lb. sulphuric acid.
Work at the boil for one and a half hours, then dye in a fresh bath
containing 2 lb. Milling Yellow O, 2 lb. Logwood extract, 20 lb.
Glauber's salt. Work at the boil for one and a half hours, then lift,
wash and dry.

_Sea Green_.--Prepare a dye-bath with 5 lb. Glauber's salt, 2 lb.
sulphuric acid, 2 lb. indigo extract, 1/2 per cent. Acid Green blue
shade. Dye as usual.

Cyprus Green B, and Cyprus Blue B, belong to a new group of dyes that
owe their value in wool dyeing to the fact that the dyeings after
being treated with copper sulphate become very fast to light and
washing. Three per cent. of each gives very full shades of bluish
green or dark blue. The dyeing is done with Glauber's salt and acetic
acid when reddish shades are got; these in a bath of copper sulphate
turn green or blue.

BLUE SHADES ON WOOL.

There are a very large number of blue artificial dyes of every class,
but only a few natural ones, indigo and logwood, and with these every
imaginable tint and shade of blue from the palest sky tints to the
darkest navy blue or blue black can be produced.

While some of the blue colouring matters possess no grea