figures are enough to show that it is only compulsory detention in State establishments which keeps down the numbers of juvenile offenders; and there can be little doubt, if the inmates of these institutions were let loose upon the country, juveniles would very soon constitute seven, eight, or, perhaps, ten per cent. of the prison population. [30] In 1889 there is a slight decrease. Let us now consider the case of young offenders between the ages of 16 and 21. This is the most momentous for weal or woe of all periods of life. During this stage, the transition from youth to manhood is taking place; the habits then formed acquire a more enduring character, and, in the majority of cases, determine the whole future of the individual. If youths between the ages just mentioned could by any possibility be prevented from embarking on a criminal career, the drop in the criminal population would be far-reaching in its effects. It is from the ranks of young people just entering early manhood that a large proportion of the habitual criminal population is recruited; and if this critical period of life can be tided over without repeated acts of crime, there is much less likelihood of a young man degenerating afterwards into a criminal of the professional class. It is most important that the professional criminal class should be diminished at a quicker rate than is the case at present; and, in spite of police statistics to the contrary, it is a class which has not become perceptibly smaller within the last twenty or five and twenty years. A proof of this statement is to be seen in the fact that offences against property with violence display a tendency to increase, and it is offences of this nature which are pre-eminently the work of the habitual criminal. It is a comparatively rare thing to find a habitual criminal stop mid-way in his sinister career; the accumulated impressions resulting from a life of crime have too effectively succeeded in shaping his character and conduct, and he persists, as a rule, in leading an anti-social life so long as he has physical strength to do it.