This advance drew Rousseau away from Crittenden, while it connected him with McClernand; exposed his left, while it covered his right. Colonel Willich, who had arrived with the Thirty-second Indiana, passed around to the left, and, with regiment in column doubled on the centre, charged upon the enemy in that quarter, drove him into the timber, then deploying in line opened fire. Willich became subject to so hot a fire--mainly, he reports, from the National troops--that he was compelled to retire. Dressing his lines he charged again. Observing undue excitement in his men, he halted the regiment, and in the midst of the battle exercised the men in the manual of arms. Having thus steadied them, he resumed the charge and again drove the enemy into the timber. Rousseau's command having exhausted their cartridges, Kirk's brigade took place in the line, while Rousseau, behind them, replenished from the supply which General McCook had already procured. Gibson's brigade having now arrived, was deployed, about two o'clock, on the left. The two armies were concentrating about Shiloh Church. Gibson's left flank being twice threatened and partially turned, the Forty-ninth Ohio twice, under fire, changed front to the rear on the right company with precision. Veatch's brigade, of Hurlbut's division, which had been acting in reserve, was moved forward by McCook and extended his left. The division being now sorely pressed by the enemy's artillery, Major Taylor, Sherman's chief of artillery, brought forward Bouton's battery and assigned part to each brigade. The section assigned to Gibson quickly silenced the batteries in his front. McCook was now connected with the forces to his right.