10 o'clock
He , too , observed the failure of Buell 's army to drive the enemy before them , and he must have felt a sinking of the heart , but he did not show it . Instead he spoke only of victory , when he made any comment at all , and sent the members of his staff to make new arrangements . He must bring into action every gun and man he had or he would yet lose . It was now 10 o'clock and the new battle had lasted with the utmost fury and desperation for four hours . Dick , after General Grant rode on , felt as if a sudden thrill had run through the whole army . He saw men rising from the earth and tightening their belts . He saw gunners gathering around their guns and making ready with the ammunition .