206 University of California Publications in History Envoy Extraordinary and Minister Plenipotentiary near the United-States of America. And the said Plenipotentiaries, after having exchanged their Powers, have agreed upon and concluded the following Articles. AwrCLE. 1. There shall be a firm and inviolable peace and sincere friendship between the United-States and their Citizens, and His Catholic Majesty, his Successors and Subjects, without exception of per- sons or places. Air. 2. His Catholic Majesty cedes to the United-States, in full prop- erty and sovereignty, all the territories which belong to him, situated to the Eastward of the Mississippi, known by the name of East and West Florida. The adjacent Islands dependent on said Provinces, all public lots and Squares, vacant Lands, public Edi- fices, Fortifications, Barracks and other Buildings, which are not private property, Archives and Documents, which relate directly to the property and sovereignty of said Provinces, are included in this Article. The said Archives and Documents shall be left in possession of the Commissaries, or Officers of the United-States, duly authorized to receive them. ART. 3. The Boundary Line between the two Countries, West of the Mississippi, shall begin on the Gulph of Mexico, at the mouth of the River Sabine in the Sea, continuing North, along the Western Bank of that River, to the 32' degree of Latitude; thence by a Line due North to the degree of Latitude, where it strikes the Rio Roxo of Nachitoches, or Red-River, then following the course of the Rio-Roxo Westward to the degree of Longitude, 100 West from London and 23 from Washington, then crossing the said Red- River, and running thence by a Line due North to the River Arkan- sas, thence, following the Course of the Southern bank of the Arkansas to its source in Latitude, 42. North, and thence by that parallel of Latitude to the South-Sea. The whole being as laid down in Melishe's Map of the United-States, published at Phila- delphia, improved to the first of January 1818. But if the Source