... field for their artillery, which was reinforced from the artillery reserve, and unlimbered in heavy force in front of a wood, in which the infantry lines were covered. Keyes' corps, and Sykes' and Morrel 's divisions of Porter's corps, held Malvern Hill and its approaches, over which the whole of the Federal trains made their way towards the James, the rear wagons passing at four P. M. The principal e...