The men's huts were made of mud over a cane network, and the roofs were made of split palm trees, hollowed out and made in the form of a large ~~~~~~~ the palms being placed concavely and convexly alternately, making fine drainage for the heavy rains. The whole place was surrounded by a ring of fine chaco paraiso trees and "ombu." The horse corrals were all _palo a pique_, that is, made of solid posts, stuck in close together side by side, and about two metres high, with no wire. The camp was more or less on the real banks of the Parana, sloping away to the river four leagues away, and forming one of the most fertile spots in the Republic. This low-lying land is the finest and cheapest grazing in the north, but it is unreliable because it is quite inundated in time of floods, when the cattle have to be withdrawn to higher camp. During various excursions on the following days we saw tracks of "tigers" (leopard) and "lions" (puma); the kill of the latter, a small gazelle buck, "guasuncho," we found neatly covered up with grass and leaves, and easily distinguishable from the tiger's kill, which is always left uncovered. A very fine tiger's skin was brought in one night, measuring 1.84 metres from the tip of the nose to the root of the tail, and 1.56 metres across. The man had suddenly come across it while on foot in the monte, and after wounding it with his Winchester had run it down with his dogs and killed it. One evening we caught sight of a tapi (tapir) coming down to drink, but were unable to shoot on account of the bad light. Each day we saw many wild pigs ("chancho moro") and various kinds of wild cats, including the splendid "gato once" or ounce cat, whose skin is one of the finest, and only to be compared with the "lobo" or golden otter, which has a most magnificent fluffy pelt with a golden tint on the tips. The latter is unfortunately getting very rare now. The great wolf or "aguaras" is still common, and is a very stately beast, as he slopes along with his hind-quarters well under him, with pricked ears and shaggy black mane. The forests here are mostly in long strips and clumps, with excellent pasture land between them; and they contain, among other commoner chaco trees, lance wood, four crowns, and tala. Amongst the strange trees there is one enormous broad-leafed tree called "guapoij," which has long creeping roots, which cling on to neighbouring trees and gradually pull them down and absorb all their goodness, killing them, and in some marvellous way apparently eating them up. One finds occasionally one of these trees embracing another bigger than itself, and gradually rooting it out of the ground. On all low ground one generally finds "Zeibos"--a tree with very soft wood and very pretty branches of scarlet flowers.