The St. Louis (Missouri) Gazette states that the Fox and Sac Indians have become desirous of selling their country to the United States. It lies west of, and is bounded east, the whole extent, by the Mississippi-south by the State of Missouri, and a more beautiful and valuable country for agricultural purposes is perhaps no where to be found in the West. The prairies are generally small, the forests extensive, the streams of water numerous and pure, the soil deep and rich; and in point of mineral wealth, the country is represented to be greatly superior to that lately purchased of the Winnebagoes and other Indians.