Buenos Ayres and the Provinces of the Rio de La Plata Their Present State, Trade, and Debt
CHAPTER XI.
OF THE RIVERS PARAGUAY, PARANA, AND URUGUAY.
Importance of the rivers of the United Provinces. The Paraguay and its tributaries. The Pilcomayo. The Vermejo. Soria's expedition down it from Oran, proving it navigable thence to Assumption. Periodical inundations of the Paranã, similar to those of the Nile. The Uruguay and its affluents. Surveys by the Commissioners appointed to determine the Boundaries laid down by the Treaty between Spain and Portugal of 1777. Original Maps obtained Page 179