The Jauru, which forms itself in the campos of the Paricis, thirty miles east of the Guapore, after flowing a long way southward, gathers, by the right bank, the Bahia and the Aguapehy, inclines to the east-south-east, and unites itself with the Paraguay, in the latitude of 16° 24′. It is navigable for a great distance, and runs principally through a flat country covered with woods. At a short distance from its margin, there is a nitrous lake, which furnishes a great quantity of salt. At the confluence of the Jauru, which is one hundred and seventy miles south-east of Villa Bella, a magnificent stone of European marble was erected in 1754, as a boundary mark between the Spaniards and Portuguese; the arms of each power being turned towards their respective possessions. This pillar is regarded by the Indians with admiration. The following is the inscription upon it. Sub Joanne Quinto Lusitanorum Rege Fidelissimo Sub Ferdinando Sexto Hispaniæ Rege Catholico Justitia et Pax osculatæ sunt Ex Pactis Finium Regundorum Conventis. Madriti Idib. Januar. M.DCC.L. The river Sepetiva, or Sipotuba, which rises fifty miles to the north-east of the Jauru, runs far along the serra of Tapirapuan, and unites itself with the Paraguay, after having gathered by the right the small rivers Juva and Jaraubahiba. The river Cabacal, much inferior to the preceding, falls into the Paraguay, a few leagues below the Sipotuba. The Preto, which is the first considerable river that swells the waters of the Paraguay, is formed by the St. Anna, and St. Francisco Xavier, which emanate from the eastern brows of the Tapirapuan Serra, and join their copious streams at the bottom of a mount, each presenting here the interesting spectacle of a large cataract. These barriers prevent the advance of various species of fish, large shoals of which are observed in the water at their base. The Barbados, which is extensive, issues also from the serra Tapirapuan, and enters the Paraguay, a considerable way below the Preto. The Pary, which took the name of a nation now extinct, originates in the serra of Tapirapuan, and falls into the Paraguay, between the Barbados and Sipotuba. All the rivers of this comarca are of pure, fresh, and crystalline water.