Paraguay abounds in the root jalap, the plant of which is called by
botanists _Mirabilis Peruviana_. These roots are long, thick, and
resinous. Without they are of a dusky brown, but within of a pure white,
without any decay. They not only cure bile, and rheum, but expel other
noxious humours from the body. The rosin of jalap is prepared from them.