HALLECK ASSUMES COMMAND IN THE FIELD--THE ADVANCE UPON CORINTH--OCCUPATION OF CORINTH--THE ARMY SEPARATED--HEADQUARTERS MOVED TO MEMPHIS--ON THE ROAD TO MEMPHIS--ESCAPING JACKSON--COMPLAINTS AND REQUESTS--HALLECK APPOINTED COMMANDER-IN-CHIEF-- RETURN TO CORINTH--MOVEMENTS OF BRAGG--SURRENDER OF CLARKSVILLE--THE ADVANCE UPON CHATTANOOGA-- SHERIDAN COLONEL OF A MICHIGAN REGIMENT--ADVANCE OF VAN DORN AND PRICE--PRICE ENTERS IUKA--BATTLE OF IUKA--VAN DORN'S MOVEMENTS--BATTLE OF CORINTH-- COMMAND OF THE DEPARTMENT OF THE TENNESSEE.
GENERAL HALLECK arrived at Pittsburg landing on the 11th of April and immediately assumed command in the field. On the 21st General Pope arrived with an army 30,000 strong, fresh from the capture of Island Number Ten in the Mississippi River. He went into camp at Hamburg landing five miles above Pittsburg. Halleck had now three armies: the Army of the Ohio, Buell commanding; the Army of the Mississippi, Pope commanding; and the Army of the Tennessee. His orders divided the combined force into the right wing, reserve, centre and left wing. Major-General George H. Thomas, who had been in Buell's army, was transferred with his division to the Army of the Tennessee and given command of the right wing, composed of all of that army except McClernand's and Lew. Wallace's divisions. McClernand was assigned to the command of the reserve, composed of his own and Lew. Wallace's divisions. Buell commanded the centre, the Army of the Ohio; and Pope the left wing, the Army of the Mississippi. I was named second in command of the whole, and was also supposed to be in command of the right wing and reserve.
Orders were given to all the commanders engaged at Shiloh to send in their reports without delay to department headquar-