dissolved. Pour into an earthen jar and boil slowly until evaporated
nearly one half. Suspend the grasses in such a manner that their tops
will be under the solution. Put the whole in a cool place where not the
least draught of air will disturb the formation of crystals. In
twenty-four to thirty-six hours take out the grasses, and let them
harden in a cool room. For blue crystals, prepare blue vitriol or
sulphate of copper in the same manner. Gold crystals can be produced by
adding tumeric to the alum solution, and purple crystals by a few drops
of extract of logwood. Sell them at twenty-five cents a bunch.