X 9 is a lad who has got out of parental control and seeks adventures. He answers questions intelligently, if somewhat insolently, and so far as a merely professional examination would show is not defective mentally. He is to all appearance simply a bad boy. Observation of his conduct in prison and enquiry outside, show the mental defect behind it. He has recurrent outbursts of temper without apparent cause, and while showing no sign of confused intelligence, he proceeds to smash things. He has been in prison for malicious mischief and for offences against decency as well as for theft. He is not given to drink, but is beginning to indulge when he can get a chance. He works intermittently, but cannot stay at anything for more than a short period. He was charged with housebreaking, but on a report from prison as to his mental condition he was certified as insane and was kept in an asylum for about a year. He had improved so much in conduct that he was discharged, but the medical superintendent expressed the opinion that left to himself he would probably break back; and he did; resuming his old practices within a short period of his liberation. He can do well enough under proper conditions, but is unfit to look after himself. X 10 is a young woman who is strongly built and of a pleasant manner and appearance. She has been a domestic servant, but falling into bad company has given up work. At first she only appeared to be "soft" a little, but drink and excess have contributed to cause or to show--for in her case it is difficult to say which--mental deficiency. She is quiet and well-behaved in prison, and is of fair intelligence, but on liberation she resorts to the lowest haunts and indulges in such excesses that when brought back to prison she is in terror of death, she feels so ill. She was induced to place herself under control for a time, and she did well, working hard and cheerfully; but she returned to the city and resumed her old courses. All who know her recognise that she "has a want," but the defect is so slight that there is no possibility of having her dealt with for it, as the laws at present only enable her to be punished for its results. Unless her excesses produce some marked degeneration--and, as she is reported to be having "fits" occasionally, that seems probable--all that can be done for her is to arrest and imprison her when she offends. When she is a wreck she will receive the kind of treatment and the guardianship that might save her were it possible to give it now.