...en Hancock and Harper's Ferry, he hoped to be able to cross over into Virginia before Meade came up with him. At Hancock, the most northerly point of the river, it almost reaches the boundary-line of Pennsylvania ; at Williamsport it receives, by the Conococheague, the greater part of the waters of the Cumberland Valley; then, as it nears Harper's Ferry before passing the mountains, it winds between the smalle...