leader, who directs their motions; and such is the regularity with which
they perform their movements, that it seems almost as if they could not
be surpassed by the best trained cavalry.

"It is extremely dangerous for travellers to encounter a herd of this
description. When they are unaccustomed to the sight of such a mass of
creatures, they cannot help feeling greatly alarmed at their rapid and
apparently irresistible approach. The trampling of the animals sounds
like the loudest thunder; and such is the rapidity and impetuosity of
their advance, that it seems to threaten instant destruction. Suddenly,
however, they sometimes stop short, utter a loud and piercing neighing,
and, with a rapid wheel in an opposite course, altogether disappear. On
such occasions, however, it requires all the care of the traveller to
prevent his horses from breaking loose, and escaping with the wild
herd.

"In those countries where horses are so plentiful, the inhabitants do
not take the trouble to rear them, but, whenever they want one, mount
upon an animal which has been accustomed to the sport, and gallop over
the plain towards the herd, which is readily found at no great distance.
Gradually he approaches some stragglers from the main body, and, having
selected the horse which he wishes to possess, he dexterously throws the
_lasso_ (which is a long rope with a running noose, and which is firmly
fixed to his saddle,) in such a manner as to entangle the animal's hind
legs; and, with a sudden turn of his horse, he pulls it over on its
side. In an instant he jumps off his horse, wraps his _poncho_, or
cloak, round the captive's head, forces a bit into its mouth, and straps
a saddle upon its back. He then removes the poncho, and the animal
starts on its feet. With equal quickness the hunter leaps into the
saddle; and, in spite of the contortions and kickings of his captive,