“General:–What I have always feared and what has been predicted by me, in the most decided form, has recently taken place. The Sac or Fox Indians, about forty, invaded the Sioux territory on or about the 25th of last month (July). These were _mounted men_, who penetrated the country as far as Cintajah, or the Grey Tail, near the headwaters of the Terre Blue River, which is a tributary of the St. Peter’s, and contiguous to this post. _There is no mistake; the Sac Indians have killed_ two of the most respectable men of the Wahpakoota Sioux, at the time and place above stated, and this, too, at least _sixty miles from the ceded territory_, as concluded upon at the treaty of July, 1830, at Prairie du Chien. The Wahpakootas ask for immediate redress, and I beg leave to assure you that the sooner their _just_ expectations in this important matter be met, the better for _me_ and for this country. I mean after what was promised by the Government, through the commissioners, at the treaty of 1830, in presence of the assembled tribes. The Sacs lost one man in their attack upon the Sioux, who were in sight of their encampment at the time. “I have written to Col. Morgan, or officer commanding the troops at Prairie du Chien, a copy of which letter is herewith enclosed. I have not gone much into detail, as the matter in question does not admit of delay. The _traders_ must lose $20,000 worth of credits already given for the country in possession of the Wahpakootas, if the present difficulty be not very speedily adjusted. I have the honor to be, with the highest respect, sir, your obedient servant, “LAW. TALIAFERRO, “Indian Agent, St. Peters. “GENERAL WILLIAM CLARK, “Superintendent of Indian Affairs.” “Indian Agency, St. Peters, August 12, 1831.