lizarine Red 5 W S.

_Scarlet_.--Mordant, 10 lb. alum and 6 lb. tartar; dye, 4 lb.
Alizarine Red 5 W S.

_Rose_.--Mordant, 6 lb. alum and 4 lb. tartar; dye, 1 lb. Alizarine
Red 1 W S.

_Deep Scarlet_.--Mordant, 10 lb. alum and 6 lb. tartar; dye, (p. 119)
4 lb. Alizarine Red 1 W S.

_Deep Maroon_.--Mordant, 3 lb. bichromate of potash and 1 lb.
sulphuric acid; dye, 5 lb. Alizarine Red 3 W S.

_Bright Maroon_.--Mordant, 3 lb. bichromate of potash and 2 lb.
tartar; dye, 5 lb. Alizarine Red S W, 10 lb. Mordant Yellow.

_Deep Fawn Red_.--Mordant, 3 lb. bichromate of potash and 2-1/2 lb.
tartar; dye, 10 lb. Alizarine Orange W and 1 lb. Mordant Yellow.

These typical recipes are here given to show what tints may be
obtained from the alizarine and the quantity of dye-stuffs required.
By using other proportions of dye-stuffs than those given a variety of
other tints may be dyed.

The method of working described above is applicable to other mordant
dyeing colours besides the alizarine reds, such as Alizarine Orange,
Alizarine Blue, Anthracene Brown, Alizarine Cyanine, Galloflavine,
Gambine, Chrome Violet, etc. It will therefore not be required to
repeat this description of the process when the use of mordant colours
for producing other colours, such as blues, navies, drabs, browns,
etc., is dealt with.

Although the shades dyed with the alizarines and allied colouring
matters are lacking in the brilliance characteristic of the azo
scarlets, yet they have the very great advantage of being quite fast
to washing, acids and light.

There is another method of using those alizarine reds that are sold in
the form of powder, and which are distinguished by the letter S. They
are of some value in dyeing heavy woollen cloths, and the method is
indicated in the two recipes which follow:--

_Brilliant Scarlet_.--Prepare a dye-bath with 20 lb. Glauber's salt
and 4 lb. Alizarine Red 1 W S, boil the wool in this for
three-quarters of an hour; then lift, add to the same bath 4 lb. (p. 120)
sulphuric acid, again work at the boil for three-quarters of an hour;
then lift, add 10 lb. alum, re-enter the goods, and work
three-quarters of an hour longer; then lift, wash and dry.

_Claret_.--Prepare a bath with 20 lb. Glauber's salt and 4 lb.
Alizarine Red 1 W S, boil for three-quarters of an hour; then lift,
add 4 lb. sulphuric acid, re-enter the wool, boil for three-quarters
of an hour; then lift, add 3 lb. bichromate of potash,