Thus, too, the tree-clumps on the pampas were mostly remains of a vanished past. To these clumps or plantations we shall return later on when I come to describe the home life of some of our nearest neighbours; here the houses only, with or without trees growing about them, need be mentioned as parts of the landscape. The houses were always low and scarcely visible at a distance of a mile and a half: one always had to stoop on entering a door. They were built of burnt or unburnt brick, more often clay and brushwood, and thatched with sedges or bulrushes. At some of the better houses there would be a small garden, a few yards of soil protected in some way from the poultry and animals, in which a few flowers and herbs were grown, especially parsley, rue, sage, tansy, and horehound. But there was no other cultivation attempted, and no vegetables were eaten except onions and garlic, which were bought at the stores, with bread, rice, mate tea, oil, vinegar, raisins, cinnamon, pepper, cummin seed, and whatever else they could afford to season their meat-pies or give a flavour to the monotonous diet of cow's flesh and mutton and pig. Almost the only game eaten was ostrich, armadillo, and tinamou (the partridge of the country), which the boys could catch by snaring or running them down. Wild duck, plover, and such birds they rarely or never tasted, as they could not shoot; and as to the big rodent, the vizcacha, which swarmed everywhere, no gaucho would touch its flesh, although to my taste it was better than rabbit.

The summer change in the aspect of the plain would begin in November: the dead dry grass would take on a yellowish-brown colour, the giant thistle a dark rust brown, and at this season, from November to February, the grove or plantation at the estancia house, with its deep fresh unchanging verdure and shade, was a veritable refuge on the vast flat yellow earth. It was then, when the water-courses were gradually drying up and the thirsty days coming to flocks and herds, that the mocking illusion of the mirage was constantly about us. Quite early in spring, on any warm cloudless day, this water-mirage was visible, and was like the appearance on a hot summer's day of the atmosphere in England when the air near the surface becomes visible, when one sees it dancing before one's eyes, like thin wavering and ascending tongues of flame—crystal-clear flames mixed with flames of a faint pearly or silver grey. On the level and hotter pampas this appearance is intensified, and the faintly visible wavering flames change to an appearance of lakelets or sheets of water looking as if ruffled by the wind and shining like molten silver in the sun. The resemblance to water is increased when there are groves and buildings on the horizon, which look like dark blue islands or banks in the distance, while the cattle and horses feeding not far from the spectator appear to be wading knee or belly deep in the brilliant water.

The aspect of the plain was different in what was called a "thistle year," when the giant thistles, which usually occupied definite areas or grew in isolated patches, suddenly sprang up everywhere, and for a season covered most of the land. In these luxuriant years the plants grew as thick as sedges and bulrushes in their beds, and were taller than usual, attaining a height of about ten feet. The wonder was to see a plant which throws out leaves as large as those of the rhubarb, with its stems so close together as to be almost touching. Standing among the thistles in the growing season one could in a sense hear them growing, as the huge leaves freed themselves with a jerk from a cramped position, producing a crackling sound. It was like the crackling sound of the furze seed-vessels which one hears in June in England, only much louder.

To the gaucho who lives half his day on his horse and loves his freedom as much as a wild bird, a thistle year was a hateful period of restraint. His small, low-roofed, mud house was then too like a cage to him, as the tall thistles hemmed it in and shut out the view on all sides. On his horse he was compelled to keep to the narrow cattle track and to draw in or draw up his legs to keep them from the long pricking spines. In those distant primitive days the gaucho if a poor man was usually shod with nothing but a pair of iron spurs.

By the end of November the thistles would be dead, and their huge hollow stalks as dry and light as the shaft of a bird's feather—a feather-shaft twice as big round as a broomstick and six to eight feet long. The roots were not only dead but turned to dust in the ground, so that one could push a stalk from its place with one finger, but it would not fall since it was held up by scores of other sticks all round it, and these by hundreds more, and the hundreds by thousands and millions. The thistle dead was just as great a nuisance as the thistle living, and in this dead dry condition they would sometimes stand all through December and January when the days were hottest and the danger of fire was ever present to people's minds. At any moment a careless spark from a cigarette might kindle a dangerous blaze. At such times the sight of smoke in the distance would cause every man who saw it to mount his horse and fly to the danger-spot, where an attempt would be made to stop the fire by making a broad path in the thistles some fifty to a hundred yards ahead of it. One way to make the path was to lasso and kill a few sheep from the nearest flock and drag them up and down at a gallop through the dense thistles until a broad space was clear where the flames could be stamped and beaten out with horse-rugs. But sheep to be used in this way were not always to be found on the spot, and even when a broad space could be made, if a hot north wind was blowing it would carry showers of sparks and burning sticks to the other side and the fire would travel on.

I remember going to one of these big fires when I was about twelve years old. It broke out a few miles from home and was travelling in our direction; I saw my father mount and dash off, but it took me half an hour or more to catch a horse for myself, so that I arrived late on the scene. A fresh fire had broken out a quarter of a mile in advance of the main one, where most of the men were fighting the flames; and to this spot I went first, and found some half a dozen neighbours who had just arrived on the scene. Before we started operations about twenty men from the main fire came galloping up to us. They had made their path, but seeing this new fire so far ahead, had left it in despair after an hour's hard hot work, and had flown to the new danger spot. As they came up I looked in wonder at one who rode ahead, a tall black man in his shirt sleeves who was a stranger to me. "Who is this black fellow, I wonder?" said I to myself, and just then he shouted to me in English, "Hullo, my boy, what are you doing here?" It was my father; an hour's fighting with the flames in a cloud of black ashes in that burning sun and wind had made him look like a pure-blooded negro!

During December and January when this desert world of thistles dead and dry as tinder continued standing, a menace and danger, the one desire and hope of every one was for the pampero—the south-west wind, which in hot weather is apt to come with startling suddenness, and to blow with extraordinary violence. And it would come at last, usually in the afternoon of a close hot day, after the north wind had been blowing persistently for days with a breath as from a furnace. At last the hateful wind would drop and a strange gloom that was not from any cloud would cover the sky; and by and by a cloud would rise, a dull dark cloud as of a mountain becoming visible on the plain at an enormous distance. In a little while it would cover half the sky, and there would be thunder and lightning and a torrent of rain, and at the same moment the wind would strike and roar in the bent-down trees and shake the house. And in an hour or two it would perhaps be all over, and next morning the detested thistles would be gone, or at all events levelled to the ground.

After such a storm the sense of relief to the horseman, now able to mount and gallop forth in any direction over the wide plain and see the earth once more spread out for miles before him, was like that of a prisoner released from his cell, or of the sick man, when he at length repairs his vigour lost and breathes and walks again.

To this day it gives me a thrill, or perhaps it would be safer to say the ghost of a vanished thrill, when I remember the relief it was in my case, albeit I was never so tied to a horse, so parasitical, as the gaucho, after one of these great thistle-levelling pampero winds. It was a rare pleasure to ride out and gallop my horse over wide brown stretches of level land, to hear his hard hoofs crushing the hollow desiccated stalks covering the earth in millions like the bones of a countless host of perished foes. It was a queer kind of joy, a mixed feeling with a dash of gratified revenge to give it a sharp savour.

After all this abuse of the giant thistle, the Cardo asnal of the natives and Carduus mariana of the botanists, it may sound odd to say that a "thistle year" was a blessing in some ways. It was an anxious year on account of the fear of fire, and a season of great apprehension too when reports of robberies and other crimes were abroad in the land, especially for the poor women who were left so much alone in their low-roofed hovels, shut in by the dense prickly growth. But a thistle year was called a fat year, since the animals— cattle, horses, sheep, and even pigs—browsed freely on the huge leaves and soft sweetish-tasting stems, and were in excellent condition. The only drawbacks were that the riding-horses lost strength as they gained in fat, and cow's milk didn't taste nice.