HEAD QUARTERS, DEPARTMENT OF THE MISSISSIPPI, St. Louis, Mo., 29 April 1862 SPECIAL ORDERS, No. 142 2. Leave of absence for thirty days with permission to apply for an extension is upon Surgeons Certificate of ill health here_ -by granted to Lieut. Thomas E Bradley 12th Michigan Volunteers. BY ORDER OF MAJOR GENERAL HALLECK. S M Preston Assistant Adjutant General. Lieut Thomas E Bradley