GENERAL ORDERS, No. 259. WAR DEPARTMENT, Adjutant General’s Office, Washington, September 21, 1864. Major General P: H. Sheridan is assigned by the President perma- nently to the command of the Middle Military Division, consisting of the Middle Department, the Departments of Washington, of the Susque- hanna, and of West Virginia, to which he was temporarily assigned by General Orders, No 240. By order of the Secretary of War: E. D. TOWNSEND, Assistant Adjutant General. Official : Assistant Adjutant General.