They no longer attempted to
establish themselves in any permanent abode that might be an
object of attack to their cruel foes. They gave up the
cultivation of the fruits of the earth, and became a wandering
tribe, subsisting by the chase, and following the buffalo in its
migrations.
Their only possessions were horses, which they caught on the
prairies, or reared, or captured on predatory incursions into the
Mexican territories, as has already been mentioned. With some of
these they repaired once a year to the Arickara villages,
exchanged them for corn, beans, pumpkins, and articles of
European merchandise, and then returned into the heart of the
prairies.
Such are the fluctuating fortunes of these savage nations. War,
famine, pestilence, together or singly, bring down their strength
and thin their numbers. Whole tribes are rooted up from their
native places, wander for a time about these immense regions,
become amalgamated with other tribes, or disappear from the face
of the earth. There appears to be a tendency to extinction among
all the savage nations; and this tendency would seem to have been
in operation among the aboriginals of this country long before
the advent of the white men, if we may judge from the traces and
traditions of ancient populousness in regions which were silent
and deserted at the time of the discovery; and from the
mysterious and perplexing vestiges of unknown races, predecessors
of those found in actual possession, and who must long since have
become gradually extinguished or been destroyed.