One of the best-known and most regularly visited rivers of this great tract is the Purús, whose mouth is a short distance above the Rio Negro, but whose sources a three months' voyage does not reach. Of the Indians found on the banks of this river I have been able to get some information.

Five tribes are met with by the traders:—

The Múras are rather a tall race, have a good deal of beard for Indians, and the hair of the head is slightly crisp and wavy. They used formerly to go naked, but now the men all wear trousers and shirts, and the women petticoats. Their houses are grouped together in small villages, and are scarcely ever more than a roof supported on posts; very rarely do they take the trouble to build any walls. They make no hammocks, but hang up three bands of a bark called "invíra," on which they sleep; but the more civilised now purchase of the traders hammocks made by other Indians. They practise scarcely any cultivation, except sometimes a little mandiocca, but generally live on wild fruits, and abundance of fish and game: their food is entirely produced by the river, consisting of the Manatus, or cow-fish, which is as good as beef, turtles, and various kinds of fish, all of which are in great abundance, so that the traders say there are no people who live so well as the Múras; they have therefore no occasion for gravatánas, which they do not make, but have a great variety of bows and arrows and harpoons, and construct very good canoes. They now all cut their hair; the old men have a large hole in their lower lip filled up with a piece of wood, but this custom is now disused. Each man has two or three wives, but there is no ceremony of marriage; and they bury their dead sometimes in the house, but more commonly outside, and putting the goods of the deceased upon his grave. The women use necklaces and bracelets of beads, and the men tie the seeds of the india-rubber tree to their legs when they dance. Each village has a Tushaúa: the succession is hereditary, but the chief has very little power. They have pagés, whom they believe to have much skill, and are afraid of, and pay well. They were formerly very warlike, and made many attacks upon the Europeans, but are now much more peaceful; and are the most skilful of all Indians in shooting turtles and fish, and in catching the cow-fish. They still use their own language among themselves, though they also understand the Lingoa Geral. The white traders obtain from them salsaparilha, oil from turtles' eggs and the cow-fish, Brazil-nuts, and estopa, which is the bark of the young Brazil-nut tree (Bertholletia excelsa), used extensively for caulking canoes; and pay them in cotton goods, harpoon and arrow-heads, hooks, beads, knives, cutlasses, etc.

The next tribes, the Purupurús, are in many respects very peculiar, and differ remarkably in their habits from any other nation we have yet described. They call themselves Pamouirís, but are always called by the Brazilians Purupurús, a name also applied to a peculiar disease, with which they are almost all afflicted: this consists in the body being spotted and blotched with white, brown, or nearly black patches, of irregular size and shape, and having a very disagreeable appearance: when young, their skins are clear, but as they grow up, they invariably become more or less spotted. Other Indians are sometimes seen afflicted in this manner, and they are then said to have the Purupurú; though it does not appear whether the disease is called after the tribe of Indians who are most subject to it, or the Indians after the disease. Some say that the word is Portuguese, but this seems to be a mistake.

The Purupurús, men and women, go perfectly naked; and their houses are of the rudest construction, being semi-cylindrical, like those of our gipsies, and so small, as to be set up on the sandy beaches and carried away in their canoes whenever they wish to move. These canoes are of the rudest construction, having a flat bottom and upright sides,—a mere square box, and quite unlike those of all other Indians. But what distinguishes them yet more from their neighbours is, that they use neither the gravatána, nor bow and arrows, but have an instrument called a "palheta," which is a piece of wood with a projection at the end, to secure the base of the arrow, the middle of which is held with the handle of the palheta in the hand, and thus thrown as from a sling: they have a surprising dexterity in the use of this weapon, and with it readily kill game, birds, and fish.

They grow a few fruits, such as yams and plantains, but seldom have any mandiocca, and they construct earthen pans to cook in. They sleep in their houses on the sand of the prayas, making no hammocks or clothing of any kind; they make no fires in their houses, which are too small, but are kept warm at night by the number of persons in them. They bore large holes in the upper and lower lip, in the septum of the nose, and in the ears; at their festivals they insert in these holes sticks, six or eight inches long; at other times they have only a short piece in, to keep them open. In the wet season, when the prayas and banks of the river are all flooded, they construct rafts of trunks of trees bound together with creepers, and on them erect their huts, and live there till the waters fall again, when they guide their raft to the first sandy beach that appears.

Little is known of their domestic customs and superstitions. The men have each but one wife; the dead are buried in the sandy beaches; and they are not known to have any pagés. A few families only live together, in little movable villages, to each of which there is a Tushaúa. They have, at times, dances and festivals, when they make intoxicating drinks from wild fruits, and amuse themselves with rude musical instruments, formed of reeds and bones. They do not use salt, but prefer payment in fish-hooks, knives, beads, and farinha, for the salsaparilha and turtle-oil which they sell to the traders.

May not the curious disease, to which they are so subject, be produced by their habit of constantly sleeping naked on the sand, instead of in the comfortable, airy, and cleanly hammock, so universally used by almost every other tribe of Indians in this part of South America?

The Catauixis, though in the immediate neighbourhood of the last, are very different. They have permanent houses, cultivate mandiocca, sleep in hammocks, and are clean-skinned. They go naked like the last, but do not bore holes in their nose and lips; they wear a ring of twisted hair on their arms and legs. They use bows, arrows, and gravatánas, and make the ervadúra, or ururí poison. Their canoes are made of the bark of a tree, taken off entire. They eat principally forest game, tapirs, monkeys, and large birds; they are, however, cannibals, killing and eating any Indians of other tribes they can procure, and they preserve the meat, smoked and dried. Senhor Domingos, a Portuguese trader up the river Purús, informed me that he once met a party of them, who felt his belly and ribs, as a butcher would handle a sheep, and talked much to each other, apparently intimating that he was fat, and would be excellent eating.