It is a well-known fact that the practice of many physicians and some alienists includes the treatment of persons who have brought themselves to the verge of mental or moral ruin by an indulgence in the use of opium or morphia, the result too commonly of medical advice. This is probably the most common origin of the morphia habit, which was called Morphinomania by Charcot, and Morphinism by Levinstein. Other methods by which the habit becomes established are either through friends or persons in the same house imitating the habit of another, and from curiosity or experiment adopting it and succumbing to its sway. Others have tried it on the recommendation or suggestion of friends, and finding they could not do without it have become victims.