...ported, if need be, by General Lee, who, by falling back to the Central Railroad, could reinforce him in a few days; that General Johnston meantime should re-occupy the lower Valley about Winchester, Harper's Ferry , and Martinsburg, and, making it his base, push his powerful corps, by the Baltimore and Ohio Railroad, direct to the Ohio River; and that thence he should cut off the retreat of General Rosecranz an...