Martinsburgh Gazette

Florida Lands—Gen. Jackson.—The Charleston Courier publishes two important decrees, issued by the captain general of Cuba, in 1818, under the royal authority of Spain, declaring the grants of land to the Duke de Alagon and others, to be unalienable. This is important to be known, as the assignee of the aforesaid duke is now said to be making large sales in this country under his purchase. Col. Hamilton, (late of this city, one of the commissioners on the Florida land claim, and who furnished these decrees,) informs, that among the papers and documents detained by Gen. Jackson, from being sent away with governor Coppinger, there have been found many important royal decrees, defining the powers and privileges of the Spanish governors, and thus enabling the commissioners to compare these grants with their authority. It is conjectured that the seasonable vigilance and energy of Gen. Jackson, at that time, will have preserved, for the United States upwards of one million of acres.

N. York Com. Adv.