N. B. Batterson, æt. 51, consulted me July 17th, 1881, and gave the following history: Ancestors for several generations long-lived and healthy. He enjoyed good health till ten years ago. Then had retention of urine brought on by heavy lifting. The physician in attendance retained gum-elastic catheter for eight days. At theend of that time the patient passed large quantities of blood. He says that this was after, not before, removal of catheter. He has had constant vesical irritation since. Pus and mucus passed daily for first four years. He was then free from purulent or bloody urine for eighteen months. For last two and a half years he has been passing bloody urine and pus at frequent intervals. Hæmaturia has always occurred after lifting heavy weights, which he was often required to do in his employment as a grocer's clerk. Requires to urinate every half hour, night and day.