...'s brigade to report to him, sending, meanwhile, for the other two brigades of Torbert, but these were not available at the time-on account of delays which occurred in relieving them from the line at Crump's Creek -and did not get up till the fight was over. As soon as Custer joined him, Gregg vigorously assaulted the Confederate position along his whole front; and notwithstanding the long-range rifles of the...