GENERAL ORDERS, No. 84. WAR DEPARTMENT, Adjutant General’s Office, Washingion, July 22, 1862. The designation in “General Orders” No. 125, from the “Head- quarters Army of the Potomac,” of the forces commanded by Brigadier Generals Porter and Franklin as the 5th and 6th Army Corps, is hereby confirmed. The forces under Major General Dix will constitute the 7th, those under Major General Wool the 8th, and those under Major General Burnside, belonging to the Department of North Carolina, the 9th Army Corps, respectively. By order op the Secretary of War: L. THOMAS, Adjutant General. Official : Assistant Adjutant General.