Thomas L------, aged thirteen, was brought to me in June, 1889, for this trouble. His parents had never succeeded in breaking him of the habit, though they had tried many different modes of treatment. He was fairly well nourished, intelligent, and of nervous temperament. He had no organic lesion of any kind, and the malady evidently depended on functional weakness and bad habit. He was hypnotized daily for six days, and then once a week for six weeks, and he always fell into a profound sleep. He wetted the bed once the first and once the third week, while previously he had rarely gone more than two consecutive nights without doing so. After that there was no return of the trouble, but he wakes up every night about twelve and empties his bladder quite automatically. The boy's future was in danger of being compromised, as his parents were unable to get him into any public school. He went to a large school afterwards and did well. I told him he was to always wake at twelve and leave the bed, and the suggestion acted excellently well.