"37. Epileptic fits in children are not infrequently the result of vicious habits. 38. Wetting the bed is an evidence of irritation which may be connected with the practice ; it should be looked after. 39. Unchastity of speech and fondness for obscene stories betray a condition of mind which does not exist in youth who are not addicted to this vice. As previously mentioned,, so single one of the above signs should be considered as conclusive evidence of the habit in any individual ; but any one of them may, and should, arouse suspicion and watchfulness. If the habit really exists, but a short time will elapse before other signs will be noticed, and when several point in the same direction, the evidence may be considered nearly, if not quite, conclusive. But persistent watching will enable the positive signs to be detected sooner or later, and then there can no longer be doubt. It is, of course, necessary to give the individual no suspicion that he is being watched, as that would put him so effectually on his guard as, possibly, to defy detection."