While this attack was being made, Gen, Hau-OALL, wiiln hi* command, moved to the right, out of tlio main defensive line, undertaking one of those flank movements lor which his excellent division hau become noted. Working his way beyond the 8andtowu Hoad, ho discovered (be Hank of the ijnc, or, os was supposed, their weak point. Iteconnoitering the ground thoroughly, he gave to Gen. Cooper with bis own and Cob Swaykk’b brigades, tbo work of assaulting the position. Holding, with Col. JIonsoN’s ami Col. Strick-lAKu’8 brigades, the lines between his toil and Gen. Cox’s right, the effort to bo made by Gen. Goor*R» though a bold ono, promised aucccas. The command of Gen. Coorsit was formed under cover of thr timbor on the south aide ol the Bandtown Hoad, Col. Swaynx on iIjcIpP, his own brigade on the right. Through an open field tilled with ruvinua and creeks, they charged, close to the rebel works, driving them from their outer works into their main line, which, owing !«■ the latcnees of the hour and i-irungth of the position, it was decided not to assault. The command was accordingly withdrawn and works thrown up for the night.ENEMY RETIRE TO TIIZIR JfAIN LIRE.Tha next day It was determined to carrj the ■alient Gen. Cooper bad developed the day before. Daylight, however, revealed the fact that the (iemansiralioR of the nigh: before nad frightened the enemy and proved to them the vulnerability of tlioir position. They withdrew with alight resistance} beforor the advance of the skirmish line, and before noon Gen. JIBcall had gained tbo ground (Icn^lnu had fought for the dny before The dead of that brigade, left on the field, had been carried off, having been stripped of all articles of use by the rebels. The division was pushed forward and developed the atiomy in the main line, their Work* running in' a southeasterly direction, covering East Point. Gen. Cox, coming from the I.ick-Skillet road, took position substantially on the ground Gen. Rully had fought for, and Qon. IIaSOALJ. moved further to the right.