INDIAN HOSTILITIES.iExtract of a letter from an officer of theJirmy, dated.“ Prairie Du Chien, May 6, 1830. ‘Whan coming down the Mifsissippi on the raft of timber, a war party of I of Sioux, came to me and landed on the t raft, but did not offer any violence. I They were seventy strong, and well s armed; and when they arrived at the Prairie, they were joined by thirty Menominies, and then proceeded down the river in pursuit of the Sacks andFoxes, who lay below. This morning they all returned, and reported that they had killed ten of the Foxes, and ttvo Squaws. I satv all the scalps, and other trophies which they had taken,; such as as canoes, tomakawks, knives, gu 8, war clubs, spears, c. A paddle was raised by them in the air, on w hich was strung the hand of a squaw and the scalps. The}’killed the head chiefof the Fox nation, ami took from them all the treaties which the nation hadwade since 1815. 1 saw them and read RU' h as I wished. One Sioux killed, and three wounded, was all the loss of the Northern party. The Winneba-goes have joined with the Sioux and Menomnies, and the Powtaw atomies have joined vVith the Sacks and Foxes We shall hive a great battle in a day or two.—TV*. Y. Com. Adt.