drop in a little gum-arabic to make the articles stiff.


208. TO DYE ROYAL PURPLE

Soak logwood chips in soft water until the strength is out, then add
a teaspoonful of alum to a quart of the liquid; if this is not
bright enough, add more alum, rinse and dry. When the dye is
exhausted, it will colour a fine lilac.


209. TO DYE SLATE COLOUR

Tea grounds, boiled in iron vessels, set with copperas, makes a good
slate colour. To produce a light slate colour, boil white maple bark
in clear water, with a little alum. The bark should be boiled in
brass utensils. The goods should be boiled in it, and then hung
where they will drain and dry.


210. TO DYE SCARLET

Dip the cloth in a solution of alkaline or metallic salt, then in
a cochineal dye, and let it remain some time, and it will come out
permanently coloured. Another method: 1/2 lb. of madder, 1/2 oz. of
cream tartar, and 1 oz. of marine acid to 1 lb. of cloth; put it
all together, and bring the dye to a scalding heat; put in your
materials, and they will be coloured in ten minutes. The dye must be
only scalding hot. Rinse your goods in cold water as soon as they
come from the dye.