Leavenwortii, Sept. 9. Intelligence from Dakotali, and the Upper Missouri, indícate? serious Inclian liostilities. Governor Jayue, of Dako tah, issucd a proclamation on the 30th uit., calling on the settlers to organizo Two men, Judge Amidou and his sou had already been killed. General Blunt reeeived a dispatoh yesterday from Gov Jayno, dated Sioux City, September 6th, which says the Indians mado an attack that morning vrithin tliree miles of ïankton, the capital of the Territory. The eourier, bringing the dispatoh to Sioux City, with an escort of ten men, had a fight with 20 Indiari", teu miles from Yankton. 'J'he Governor calis for a regiment, and arms and ammunitioD, as a geueral Indian war is feared.