GENERAL, ORDERS, No. 17. WAR DEPARTMENT, Adjutant General’s Office, Washington, January 12, 1864. By direction of the President of the United States, Major General S. P. Heintzelman, U. S. Volunteers, is placed in command of the Northern Department, which will be composed of the States of Michi- gan, Ohio, Indiana, and Illinois—Headquarters at Columbus, Ohio. By order of the Secretary of War: E. D. TOWNSEND, Assistant Adjutant General. Official : Assistant Adjutant General.