That in a limited island some check would sooner or later supervene, is inevitable; but why has the increase of the horse been checked sooner than that of the cattle?
Captain Sulivan has taken much pains for me in this inquiry.

The Gauchos employed here attribute it chiefly to the stallions constantly roaming from place to place, and compelling the mares to accompany them, whether or not the young foals are able to follow.

One Gaucho told Captain Sulivan that he had watched a stallion for a whole hour, violently kicking and biting a mare till he forced her to leave her foal to its fate.

Captain Sulivan can so far corroborate this curious account, that he has several times found young foals dead, whereas he has never found a dead calf.

Moreover, the dead bodies of full-grown horses are more frequently found, as if more subject to disease or accidents than those of the cattle.