Of the Indian nations here found by the conquerors, the only one worthy of remembrance was the _Paricis_, who were well formed, affable, and much pleased with the Christians. From their alliances with the whites and Africans are descended a great part of the _Mamalucos_ and _Curibocas_, who constitute the gross of the population. They are usually of good morals, and much respected. _District of_ BORORONIA. This comarca, which borrows its name from the Bororo Indians, who yet have dominion over the principal part of it, is bounded on the north by the district of Tapiraquia, on the west by that of Cuiaba, on the south by Camapuania, and on the east by the province of Goyaz, from which it is divided by the river Araguaya. It is upwards of four hundred miles in length from north to south, and of proportionate width, although very irregular. The _Bororos_, the _Guatos_, and the _Baccahiris_ are its actual possessors. The Bororos are the most numerous, although greatly diminished in comparison with what they were at the commencement of the conquest; they are divided into various tribes, under different appellations. The Guatos, who possess the southern part, and are friendly to the Portuguese, are extraordinary swimmers, fish with the arrow, and have a great number of canoes, in which they advance to the Portuguese establishments. The bow, arrow, and a large lance are their arms; a wide _cinta_, or girdle, manufactured from the fibres of the _tucum_ palm, is the common vesture of both sexes. The skin of the ounce generally constitutes their bed, and they are a people exceedingly indolent. Honey and game form a main part of their subsistence. The Baccahiris, who occupy the lands in the vicinity of the river Das Mortes, wage a continued warfare against all kinds of quadrupeds and birds, their principal aliment. Up to the present time this horde has never acted with hostility towards the Christians. They are said to be of a white complexion and docile, from which they are supposed to be a tribe of Paricis. RIVERS AND LAKES.--The river St. Lourenço, which originates in the latitude of about 15°, is already considerable when it traverses the road of Goyaz; afterwards, it gathers by the left the Parannahiba, which brings with it the Sucuri, the sources of which are also a great distance to the north of the said road. A little below this confluence, where it becomes large, there is a fall, which is the last, and from hence it continues to the south-west, through a flat country, augmenting greatly until its incorporation by two mouths with the Paraguay, which is not superior to it. The eastern embouchure is distinguished by the name of Rio Chaynez.