...nd Baltimore and Philadelphia. The army of Meade was also well supported by a fine reserve; for Halleck, strange to tell, had given to Meade what he had withholden from Hooker, namely, the force at Harper's Ferry . French moved it, now 11,000 strong, to Frederick, Md. It here constituted a cover to our depots, to Washington communications, and a ready help for any contingency. The infantry and artillery ...