...nate, and protracted till 9 o'clock, when Gibbon's brigade had nearly reached the top of the pass, and had exhausted every cartridge; suffering, of course, severely. At midnight, it was relieved by Gorman 's brigade of Sumner's corps, which, with Williams's, had reached the foot of the mountain a little after dark. Richardson's division had also arrived, and taken position in the rear of Hooker; whil...