There are still to be found here several old houses built during the Spanish regime. They are recognizable from having a low brick basement surmounted by a wooden upper story,--built as if in anticipation of an earthquake,--a combination of residence and fortification. The old Postlethwaite house on Jefferson street is such a one. The Spanish made many grants of land, as though Spain were the lawful sovereign, which grants were, however, afterwards usually recognized by the American authorities when followed by possession. The old Spanish records in the office of the Clerk of our Chancery Court, are a treasure store for the antiquary and historian. These records are not quite complete, a portion having been carried away, (it is said to Havana) by the Spaniards when they evacuated Natchez. But the United States would recognize no title by adverse possession on Spain to this fair land, and finally began to vigorously assert her rights. About Feb. 24th, 1797, Andrew Ellicott arrived at Natchez, accompanied by a sufficient military escort and clothed with power as commissioner of the United States to meet the representative of Spain, to mark out the 31st parallel as the boundary between the two dominions. He first camped near the present intersection of Wall and Jefferson streets and there hoisted the American flag. The Spanish governor, Gayoso, resorted to various subterfuges and evasion to delay the fixing of the boundary line and the evacuation of Natchez. It was not till March 29th, 1798, that the Spaniards, after exhausting every excuse for delay, and under the influence of a popular uprising supported by the military forces of the United States, finally evacuated Fort Panmure. And then they left, not by the light of day, with military honors and with martial music and banners flying; but like thieves, at midnight they stole silently away. It was only after this that Governor Gayoso, from New Orleans, issued commissions to Sir William Dunbar and Capt. Stephen Minor, as commissioners for Spain and in May, 1798, the work of surveying the 31st parallel was begun. The State of Georgia had all along claimed as her own a large portion of the present State of Mississippi, including what is now the county of Adams. This territory she had organized as the county of Bourbon in 1785, and she attempted alone to assert her rights against Spain. There thus arose a conflict of claims between Georgia and the United States, which was finally adjusted and Mississippi Territory organized by Act of Congress, approved April 7th, 1798. Natchez was made the first territorial capital, and Winthrop Sargent was appointed the first territorial governor. Sargent, by proclamation, on April 2d, 1799, formed the Natchez District into the two counties of Adams and Pickering,--the latter name being afterwards changed to Jefferson.