Conduct of the War. hearings before the United States Joint Committee on the Conduct of the War, Thirty-Seventh Congress, third session and Thirty-Seventh Congress, second session, on Dec. 20-24, 26-28, 30, 31, 1861, Jan. 2-11, 13-18, 20-25, 27-31, Feb. 1, 3-7, 10-14, 17-21, 24, 26-28, Mar. 1, 3-8, 10-14, 16, 17, 19, 21, 24-26, 31, Apr. 1-4, 7-11, 14-18, 21-25, 28-30, May 2, 5, 7, 12, 22, June 20, 21, 32-25, 27, 30, July 2, 5, 8-10, 12, 14-16, Dec. 5, 18-20, 22, 23, 1862, Jan. 8, 12, 21, 28, 30, 31, Feb. 2, 7, 9-11, 17-19, 23, 25-28, Mar. 2, 3, 5-7, 9-11, 13, 14, 16, 19, 23, 25-28, 31, Apr. 1-3, 1863. Part 1, Army of the Potomac :