Nelson, seeing the effect of Mendenhall's fire, threw Hazen's brigade forward. It came upon the battery which had been cutting them to pieces. With a cheer they sprang upon the guns, seized them, commenced turning them upon the fleeing enemy. The Rebel line rallied and came back, followed by fresh troops. There was a short, severe struggle, and Hazen was forced to leave the pieces and fall back. Then the thunders rolled again. The woods were sheets of flame.[21] The Rebels brought up more of their reserves, and forced Nelson to yield his position. He fell back a short distance, and again came into position. He was a stubborn man,--a Kentuckian, a sailor, who had been round the world. His discipline was severe. His men had been well drilled, and were as stubborn as their leader. [Footnote 21: Nelson's Report.] "Send me another battery, quick!" was his request, made to General Buell. Tirrell's battery, which had just landed from a steamer, went up the hill, through the woods, over stumps and trees, the horses leaping as if they had caught the enthusiasm of the commander of the battery. Captain Tirrell had a quick eye. "Into position there. Lively, men! Caissons to the rear!" were his words of command. The gunners sprang from the carriages to the ground. The caissons wheeled, bringing the heads of the horses towards the Landing, trotted off eight or ten rods and took position sheltered by a ridge of land. Captain Tirrell rode from gun to gun. "Fire with shell, two-second fuses," he said to the lieutenants commanding his two ten-pounder Parrott guns. "Grape and canister," he said to the officers commanding the four brass twelve-pounders. Its fire was terrific. Wherever his guns were turned there was silence along the Rebel lines. Their musketry ceased. Their columns staggered back. All the while Mendenhall was pounding them. The Nineteenth Ohio, from Crittenden's division, came down upon the run, joined the brigade, and the contest went on again. The Rebels, instead of advancing, began to lose the ground they had already won.