The Spaniards now once more came forward with their claim to all Pacific territory up to the fifty-fifth degree, while Russia demanded everything down to the fifty-first. The United States yielded nothing in this direction, and, still claiming Texas to the Rio Grande as a part of the Louisiana Purchase, was finally able, in February, 1819, to negotiate a treaty with Spain whereby that country ceded Florida, and its rights north of latitude forty-two, in the Oregon region, for the claims of the United States to Texas. Spain desired to extend its boundary to the Mississippi, but in this did not succeed. The line between all Spanish territory and Louisiana was also definitely fixed, and the Louisiana Purchase now had limits for the first time, except on the west between the forty-second parallel and the forty-ninth, and no line could be drawn here till the United States and Great Britain settled their difference over the Oregon region. These various agreements delimited Louisiana as it is usually given on maps, except north from the forty-second parallel, where there never was a boundary, except that the Rocky Mountains were temporarily recognised as the eastern limit of the disputed region. The lines of Louisiana on the west followed the Sabine River to latitude thirty-two, thence north to Red River and west along it to the one hundredth meridian, thence north on this to the Arkansas, and west on the Arkansas to its source, thence due north to the forty-second parallel. See map on page 154, in which the dotted part shows the original state of the claims. All north of the forty-second parallel claimed by Spain fell to the United States. These claims in themselves were not very strong, except as to original discovery on the coast, but, united to those acquired from France, from Gray's discovery, from Lewis and Clark's exploration, from the Astoria establishment and its subsidiary posts, and from the journey of Wilson Price Hunt, they presented a better title to the region than any other nation could show.