In the afternoon a gap occurred between General Prentiss's division and the rest of the line, and the Confederates were prompt to take advantage of it. Rushing with a heavy force through this gap, and at the same time attacking his left, they doubled up both flanks, and captured that general and two thousand two hundred of his men. On this part of the field the day was saved by Col. J. D. Webster, of General Grant's staff, who rapidly got twenty guns into position and checked the Confederate advance. They then attempted to come in on the extreme left, along the river, by crossing a ravine. But more guns were brought up, and placed on a ridge that commanded this ravine, and at the same time the gunboats _Tyler_ and _Lexington_ moved up to a point opposite and enfiladed it with their fire. The result to the Confederates was nothing but a useless display of valor and a heavy loss. [Illustration: A FEDERAL GUNBOAT.] [Illustration: BRIGADIER-GENERAL GEORGE W. CULLUM.] [Illustration: MAJOR-GENERAL SCHUYLER HAMILTON.] {102} [Illustration: FINAL STAND OF THE ARMY OF GENERAL GRANT, APRIL 6, 1862, NEAR PITTSBURG LANDING.] The uneven texture of Grant's army had been shown when two green colonels led their green regiments from the field at the first fire; and the {103} stragglers and deserters, having no opportunity to scatter over the country, necessarily huddled themselves together under the bank of the river at the landing, where they presented a pitiful appearance. General Grant says there were nearly five thousand of them. There was about an equal number of deserters and stragglers from Johnston's army; but the nature of the ground was not such as to concentrate them where the eye could take them all in at one grand review. With the exception of the break when Prentiss was captured, Grant's line of battle was maintained all day, though it was steadily forced back and thirty guns were lost. Beauregard discontinued the attack at nightfall, when his right was repelled at the ravine, intending to renew it and finish the victory in the morning. He knew that Buell was expected, but did not know that he was so near. Lew Wallace was now in position on the right, and Nelson on the left, and all night long the boats were plying back and forth across the Tennessee, bringing over Buell's army. A fire in the woods, which sprang up about dusk, threatened to add to the horrors by roasting many of the wounded alive; but a merciful rain extinguished it, and the two armies lay out that night in the storm. A portion of the Confederates were sheltered by the captured tents, but on the other hand they were annoyed by the shells constantly thrown among them by the gunboats.