i8so.] SCENERY IN THE GAPO. 121
He will pass through small streams, lakes, and swamps, and everywhere around him will stretch out an illimitable waste of waters, but all covered with a lofty virgin forest. For days he will travel through this forest, scraping against tree-trunks, and stooping to pass beneath the leaves of prickly palms, now level with the water, though raised on stems forty feet high. In this trackless maze the Indian finds his way with unerring certainty, and by slight indications of broken twigs or scraped bark, goes on day by day as if travelling on a beaten road. In the Gapo peculiar animals are found, attracted by the fruits of trees which grow only there. In fact, the Indians assert that every tree that grows in the Gapo is distinct from all those found in other districts ; and when we consider the extra- ordinary conditions under which these plants exist, being sub- merged for six months of the year till they are sufficiently lofty to rise above the highest water-level, it does not seem impro- bable that such may be the case. Many species of trogons are peculiar to the Gapo, others to the dry virgin forest. The umbrella chatterer is entirely confined to it, as is also the little bristle-tailed manakin. Some monkeys are found there only in the wet season, and whole tribes of Indians, such as the Purupuriis and Muras, entirely inhabit it, building small, easily- removable huts on the sandy shores in the dry season, and on rafts in the wet ; spending a great part of their lives in canoes, sleeping suspended in rude hammocks from trees over the deep water, cultivating no vegetables, but subsisting entirely on the fish, turtle, and cow-fish which they obtain from the river.
On crossing the Rio Negro from the city of Barra, we entered into a tract of this description. Our canoe was forced under branches and among dense bushes, till we got into a part where the trees were loftier, and a deep gloom prevailed. Here the lowest branches of the trees were level with the surface of the water, and were many of them putting forth flowers. As we proceeded we sometimes came to a grove of small palms, the leaves being now only a few feet above us, and among them was the maraja, bearing bunches of agreeable fruit, which, as we passed, the Indians cut off with their long knives. Sometimes the rustling of leaves overhead told us that monkeys were near, and we would soon perhaps discover them peeping down from among the thick foliage, and then bounding rapidly away as soon as we had caught a glimpse of
