Here was where we had reason to apprehend trouble, should a revolution break out. We each took a turn to "repuntar," or drive in the cattle, which fed together in groups, and the same thing took place with the mares and colts. They also had to be continually turned inwards, and gathered up every now and again into the "manga," or stone enclosure to be looked over. When you had been some time at this work, it was wonderful how keen your eyesight became, and how it adapted itself to your needs. For instance, you could make out cattle and horses at a distance, when the ordinary observer would hardly know they were animals at all. Moreover, your eye became accustomed to tell you whether they were your own or your neighbour's, by their manner of feeding when grouped, their apparent number, and their behaviour when disturbed. Early morning and late afternoon was the time for this work, especially in warm weather, as both horses and cattle were glad to take advantage of the shelter of the high rocks during the heat of the day. We had three dogs, which helped us greatly, as they yelped and barked and chased the cattle to their heart's content. I rather took to this work; there was a kind of excitement about it, as you never quite knew whom you were likely to come across, or what was likely to happen before you got home. At evening, too, if you chanced to be late, there was a certain weirdness about it all: the huge masses of rock casting their grey shadows as the sun fell towards the horizon, and then when it had fully set, a great silence seemed to fall upon everything. Scarcely a sound could be heard in any direction. The "pteru-pteru," or wild plover, ceased his shrill cry, and both bird and beast, active during daylight, quietly sought their rest. Not so, however, those of the night, for when the short twilight was over, and darkness had fairly set in you could hear strange sounds and noises, as if something or other was at work, never seen nor heard during the day, and the short bark of the wild fox would sound out sharp and clear as he sallied forth in search of his prey. Then, indeed, you feel truly glad when the welcome light of the estancia house tells you that you are nearly home. Your horse, too, knows that he is near, that his work for that day at any rate, is done, and he looks joyfully forward to joining his companions, and to a peaceful time till morning. It was usual, once a week, to gather up all the cattle together upon a spot selected for that purpose, where a high post is fixed in the ground, around which when collected the cattle revolve. Upon such an occasion, those who had furthest to go were on horseback soon after dawn, each taking an appointed route, and as he returned driving the cattle in front of him. On this estancia there were special difficulties to contend with, as the high masses of rock enabled here and there a point of cattle to break back unseen, or if you did see them, probably it was at a place where it