auber's salt.

_Pale Walnut Brown._--Dye with 3-1/2 lb. Diamine brown M, 3/4 lb.
Oxydiamine orange G, 1-1/2 oz. Diamine black B H, 3 lb. soda and 20 lb.
Glauber's salt.

Various other browns may be obtained by combining the various direct
browns together or with other direct dyes. The use of a yellow or orange
will brighten them; that of a red will redden the shade; the addition of
a dark blue or a black will darken the shade considerably. It may be
useful to remember that a combination of red, orange and blue or black
produces a brown, and by using various proportions a great range of
shades can be dyed.

_Black._--Prepare a dye-bath with 6 lb. Diamine black R O, 2 oz.
Thioflavine S, 2 lb. soap, 10 lb. salt. Enter the cotton at the boil and
dye for one hour; lift, wash and dry.

_Black._--Prepare the dye-bath with 5 lb. Direct deep black E extra, and
1/2 to 1-1/2 oz. common salt per gallon of water. Dye at the boil for
one hour.

_Deep Black._--Prepare the dye-bath with 5-1/2 lb. Diamine deep black R
B, 2 lb. soda, 20 lb. Glauber's salt. Dye at the boil for one hour;
lift, wash and dry.

_Black._--Prepare the dye-bath with 5 lb. Direct triamine black G X, 15
lb. Glauber's salt. Dye for one hour at the boil; lift, rinse and dry.
In working for from two to three hours the dye-bath will exhaust
completely.

_Black._--Prepare the dye-bath with 5 lb. Oxydiamine black A, 20 lb.
Glauber's salt, 2 lb. soda. Dye at the boil for one hour.

_Black._--Prepare the dye-bath with 6 lb. Pluto black B. Dye at the boil
for one hour with the addition of 3/4 to 1-1/4 oz. Glauber's salt, 1/2
to 3/4 oz. soda ash per gallon of liquor. To develop the shade it is
necessary to dye in a boiling liquor.

_Black._--Use 2-1/2 lb. Diamine jet black Cr, 2-1/2 lb. Diamine jet
black R B, 2 lb. soda, and 20 lb. Glauber's salt, working at the boil
for one hour.

_Black._--Use 6 lb. Oxydiamine black N R, 2 lb. soda and 20 lb.
Glauber's salt, working at the boil for one hour.

_Black._--Use 6 lb. Columbia Black F B B, 3 lb. soda and 20 lb.
Glauber's salt, working at the boil to shade.

Besides the blacks given in the above recipes, there are other brands
which are used in the same way, and vary slightly in the shade of black
they give.

All the direct blacks require working in strong baths to give anything
like black shades; they all have, more or less, a bluish tone, which can
be changed to a jetter shade by the addition of a yellow or g