As the day passed onward the battle on the left at length lulled, both sides glad of an interval of rest. That McClellan's next attempt would be made upon the centre General Lee felt confident, and he rode thither to caution the leaders and bid them to hold their ground at any sacrifice. A break at that point, he told them, might prove ruinous to the army. He especially charged Gordon to stand stiffly with his men, as his small force would feel the first brunt of the expected assault. Gordon, alike to give hope to Lee and to inspire his own men, said in reply,-- "These men are going to stay here, general, till the sun goes down or victory is won." Lee's military judgment, as usual, was correct. He had hardly got back to the left of his line when the assault predicted by him came. It was a beautiful and brilliant day, scarcely a cloud mantling the sky. Down the slope opposite marched through the clear sunlight a powerful column of Federal troops. Crossing the little Antietam Creek they formed in column of assault, four lines deep. Their commander, nobly mounted, placed himself at their right, while the front line came to a "charge bayonets" and the other lines to a "right shoulder shift." In the rear front the band blared out martial music to give inspiration to the men. To the Confederates, looking silently and expectantly on the coming corps, the scene was one of thrilling interest. It might have been one of terror but for their long training in such sights. Who were these men so spick and span in their fresh blue uniforms, in strange contrast to the ragged and soiled Confederate gray? Every man of them wore white gaiters and neat attire, while the dust and smoke of battle had surely never touched the banners that floated above their heads. Were they new recruits from some military camp, now first to test their training in actual war? In the sunlight the long line of bayonets gleamed like burnished silver. As if fresh from the parade-ground they advanced with perfect alignment, their steps keeping martial time to the steady beat of the drum. It was a magnificent spectacle as the line advanced, a show of martial beauty which it seemed a shame to destroy by the rude hand of war. One thing was evident to General Gordon. His opponent proposed to trust to the bayonet and attempt to break through Lee's centre by the sheer weight of his deep charging column. It might be done. Here were four lines of blue marching on the one in gray. How should the charge be met? By immediate and steady fire, or by withholding his fire till the lines were face to face, and then pouring upon the Federals a blighting storm of lead? Gordon decided on the latter, believing that a sudden and withering burst of deadly hail in the faces of men with empty guns would be more than any troops could stand.