Some four hundred Cheyennes attacked Lieut. Clayton on Smoky Hill. After several hours fight the Indians fled, leaving twenty-eight killed. Our loss four killed and three wounded. Look out for Cheyennes everywhere. Especially instruct troops in upper Arkansas. S. R. CURTIS, Major-General. FT. LEAVENWORTH, October 7, 1864. MAJOR-GENERAL HALLECK, Chief of Staff: General Blunt came upon a party of Arapahoes and other hostile Indians supposed to be four thousand, with fifteen hundred warriors, on the twenty-fifth ultimo. This was about one hundred miles west of Larned on Pawnee fork. The Indians overpowered the advance, but the main force coming up routed and pursued them. Ninety-one dead Indians were left and we lost two killed and seven wounded. General Blunt's force was less than five hundred. He pursued for several days. S. R. CURTIS, Major-General. The place where this battle occurred was about one hundred and thirty miles east of the Sand Creek battle-ground, and probably some of the same Indians were in both encounters. The telegrams I have quoted indicate that General Curtis was fully alive to the situation. Evidently he believed the Cheyennes and Arapahoes were hostile and was not in favor of making peace with them until they had been punished. On account of his limited force, Colonel Chivington could do little more than protect the lines of travel; consequently, all that summer and fall the frontier settlers were compelled to take care of themselves. And it was not until after the Third Colorado had been organized and equipped that he was able to strike a decisive blow. In his deposition presented at the investigation by the Joint Committee on the Conduct of the War, among other things, Colonel Chivington has the following to say concerning the battle of Sand Creek and the conditions leading up to it.