known as sourveld-grasses
that are nutritious
in their early stages of
growth but then lose their protein and mineral content and become un-
palatable and indigestible to animals; and in the autumn they moved them
to sweetveld, which remains nutritious through the year. In Lesotho, when
the lowlands became densely populated,
cattle wintered in the lowlands
but spent the summer in the mountains.f '
The farmers practiced various types of swidden agriculture-that
is,
18