Telegram To A. Henry.

War Department, Washington, D. C, September 12, 1862.

HON. ALEXANDER HENRY, Philadelphia:

Yours of to-day received. General Halleck has made the best provision he can for generals in Pennsylvania. Please do not be offended when I assure you that in my confident belief Philadelphia is in no danger. Governor Curtin has just telegraphed me: "I have advices that Jackson is crossing the Potomac at Williamsport, and probably the whole rebel army will be drawn from Maryland." At all events, Philadelphia is more than 150 miles from Hagerstown, and could not be reached by the rebel army in ten days, if no hindrance was interposed.

A. LINCOLN.