ment, Capt Rotií, and a dotaehmeut of Fire Zouaves, are reported as having had a littlc brusb with the rebels at Ai-liugton Mills, at aboui 11 o'clock on Friday evening lnst. The Jliohigan Boys were in the Mills and the Zouaves on the outside, u a store house. Ilenry C. Cornell, of Zouave Company (}, was killed, and William Cashman, of the same Company, slightly wounded. Nobodv else hurt. None of the rebels killed. The Mills are the same from whioh a large quantity of flour had beou removed to Col. Willcox's Camp.