After long waiting without any result, he finds in his snares a coati, some little Guinea pigs; here is one resource, undoubtedly, but he aims at higher game, and the kids will not allow themselves to be taken by his baits.
He remembers then, that in certain parts of America, the hunters, in order to seize their prey living, have recourse to the lasso, a long cord terminated by a slip-noose, which they know how to throw at great distances, and almost always with certainty.
With a thread which he obtains from the fibres of the aloe, with narrow strips of skin, closely woven, he composes a lasso more than fifty feet long; he tries it; he exercises it now against a tuft of leaves detached from a bush, now against some projecting rock; afterwards he tries it upon Marimonda, who often enough, by her agility and swiftness, puts her master at fault.
In the interval of these preparatory exercises, Selkirk occupies himself with the construction of a latticed inclosure, destined to contain the flock which he hopes to possess; he makes it large and spacious, that his young cattle may bound and sport at their ease; high, that they may respect the limits he assigns them.

In one corner, supported by solid posts, he builds a shed, simply covered with branches; that his flock may there be sheltered from the heat of the day.

The inclosure and the shed, together with his garden, form a new addition to his great settlement.
When, his kids shall have become goats, when the epoch of domesticity shall have arrived for them, when they shall have contracted habits of tameness, when they have learned to recognize his voice, then, and then only, will he permit them to wander and browse on the neighboring hills, under the direction of a vigilant guardian.

This guardian, where shall he find?
Why may it not be Marimonda?
Marimonda, to whose intelligence he knows not where to affix bounds! Dreams, dreams, perhaps! and yet but for dreams, but for those gentle phantoms which he creates, and by which he surrounds himself, what would sustain the courage of the solitary?
When Selkirk thinks he has acquired skill in the use of the lasso, he buries himself among the high mountains situated towards the central part of his island.

Several days pass amid fruitless attempts, and when the delicately-carved foliage of the mimosa announces, by its folding, that night is approaching, he regains his cabin, gloomy, care-worn, and despairing of the future.
Meanwhile, by his very failures, he has acquired experience.