When fresh, scrape the flower leaves with a blunt knife to make each
petal curl.
[Illustration: Fig. 63.]
For a green hue, dip the flower, but not the stalk, or the former will
fall off, in a brass or copper vessel full of vinegar and salt, for half
a day, or not so long in oil of tartar; wash in water, and dry them,
keeping the stem up. For a straw-yellow tint, keep them two days in oil
of tartar. For yellow, or another shade of green, in quick lime,
slightly liquefied with water. For grey, in vinegar, milk with a little
black dye. For jet, put the stems through holes in a plate of metal
fitting a vessel by which the flowers can be exposed to the fumes of
sulphur. They will be blanched at first, but will then redden, and
finally become black. To varnish: Melt down some Flanders glue, strain
it, and brush it on thoroughly. Put them away to dry where no dust will
fall on them. Perfume at pleasure.
[Illustration: Fig. 64.]