As obstetric writers have not considered the subject of bursting wounds, I take this opportunity of placing on record three instances of wound separation or bursting following cesarean section at the Chicago Lying-In Hospital. I hope that their recital and study will be of value to those interested in the newer problems of obstetrics. REPORT OF CASES Case 1. —Mrs. S., a patient of Dr. J. B. De Lee, aged 33, French, a primigravida, (tertipara, two spontaneous abortions) who had had myomectomy several years previously, entered the hospital at term but not in labor with marked dyspnea and cyanosis (medical diagnosis: acute bronchial asthma with marked cardiac decompensation). She was unable to find comfort in horizontal or sitting positions, and was very restless. Her weight was 225 pounds (112 Kg.). Classic cesarean section was performed under local anesthesia with the patient in a semisitting posture. Great difficulty was encountered during