_Witness continued_.--My jurisdiction extends to the limits of the posts north at Madison, Wisconsin, southwest to Rock Island, south, or almost south, to Springfield, and east to Detroit, Michigan. The Commandant has jurisdiction over everything pertaining to military affairs in the jurisdiction, over the command of all troops, and for the protection of the property of the Government and of the people. Chicago is one of the first military depots of supplies in the country. There are ten depots in charge of a Colonel, and Chicago is one of them. The Depot Quartermaster at that time was Colonel Potter. From the commencement to the latter end of August, the number of troops under my command, fit for duty, was from 800 to 900. Towards the end of August, I was reinforced by about 1,200 men, consisting of four companies of one hundred days' men, and the 196th Pennsylvania Regiment, which numbered 750 men, also one hundred days' men; these remained with me sixty or seventy days. I telegraphed for these reinforcements. There were between 8,000 and 9,000 prisoners in camp up to November. On the 6th of November, the morning report shows 796 men, rank and file, fit for duty. There were always on duty in Chicago about sixty men acting as provost guard; this left 736 men in camp to do guard duty. The sixty men in the city performed service in looking after deserters, guarding property, &c. The depot for supplies is in the city, and is in charge of the depot quartermaster. Troops were used for doing camp duty, and guarding prisoners of war, and forwarding deserters to various camps. The entire guard in Camp Douglas was about 500 men, 250 on duty at a time, and 250 off. These were changed every other day. The camp is within the city limits, and is about three miles from the Court House.