European domestic animals have thrived since their introduction, though there is a tendency, checked by the constant introduction of breeding stock, to develop local characteristics. This has been particularly remarked in sheep which have strayed and have been left to themselves for several generations. They grow bigger and bonier, and with their leanness comes the power of rapid movement, so that their flesh is scant and their wool has an inclination toward growing straight and stiff like the hair of a goat. In the outlands of Argentina ostriches, jaguars, and deer may be seen; but you can live for years on the prairies--and that is where most of the colonisation is going on--and never catch a glimpse of one of these. The thing which lays hold of the seeing man, after he has remembered the ages during which the country, suitable for maintaining innumerable millions of men and beasts, lay dormant, is the way the land has been completely transformed in its inhabitants, human and animal, and how alien vegetation has found a thriving home. The early Spanish adventurers, as has already been told, had to start their settlement by bringing animals from Spain, and it was chance, the extraordinary reproductiveness of herds which strayed or were abandoned, which taught them they had come into possession of something more valuable than gold mines. Books of history chiefly deal with the lust and the cruelty of the early Spaniards. I have nothing to do here with the story of the way in which Spain conquered the land. We have not to lose sight of the fact, however, they began settling in these parts nearly four hundred years ago, when a voyage to the Americas was like a journey to another planet, when the ships were small and incommodious and dangers were great, and the world had no experience in the science of colonisation. The authorities freely gave tracts of land, but in their wisdom they always stipulated that European domestic animals should be introduced. A settler got land for wheat and maize and an orchard, and then more land, just in proportion to how many horses, cows, sheep, pigs, and goats he would introduce. The land could be obtained for nothing, but always on condition that it was put to its full use in the maintenance of stock. That was a rough and ready, and yet very statesmanlike procedure. The best incentive was given to the agriculturist and breeder. The more cattle he introduced the more land he put to the plough, the bigger was the grant given to him by the authorities. Thus possession and prosperity advanced hand in hand. Here is a lesson which might be learnt to-day and copied by such countries as Australia, where there are millions of acres of undeveloped territory.