(5) There remain three personal causes which need be the only permanently troublesome factors- -laziness, self-indulgence, and the incontinence which results in over- large families. The laziness which prefers chronic inactivity to work is not normal to human nature, and will be largely banished by education, the improvement of health, and the improvement of the conditions and hours of labor. The obstinate cases of unwillingness to work must be cured by compulsory labor in farm colonies or on public works; most such cases respond to intelligent treatment and cease to be troublesome when some physical or moral twist has been remedied. The waste of income in self-indulgence of one form or other is more difficult to deal with; but the law can justly forbid the wage-earner from squandering upon himself money needed by wife and children, and direct that a due proportion of his wages be paid directly to the wife. If neither father nor mother will use their money for the proper welfare of the children, the State must take the children from them though that step should only be a last and desperate resort. Finally, there is the tendency, unfortunately most prevalent among the lowest classes, to have more children than can be decently cared for. To some extent this evil can be remedied by the dissemination of information concerning proper methods of preventing conception [Footnote: There is, however, a danger in the general dissemination of such information- the danger of increasing prostitution by lessening one of the chief deterrents there from.]; to some extent by moral training to self-control and a sense of responsibility. Or the State may undertake the countenance large families; if this is done (see chapter xxx), steps must of course be taken to prevent the marrying of the unfit-or, at least, their breeding. With our rapidly decreasing birth rate, and the spread of education, which will do away with "lower" classes and fit every one in some decent degree to be a parent, this will probably be the ultimate solution. With the disappearance of poverty, the miserable living conditions of so large a proportion of our population will automatically improve. But much should be done directly by the State to prevent such housing conditions as make for physical or moral degeneration. We are far behind Europe in housing-legislation, and conditions in most of our cities are going from bad to worse. There is, however, no need whatever of unsanitary housing; it is merely the selfishness of owners and the apathy of the public that permits its existence. The crowding-which in New York City runs up to some thirteen hundred per acre-can be stopped by simple legislation. The lack of proper light or ventilation, of proper water supply, plumbing, or sewerage, of proper removal of ashes, garbage, or rubbish, is inexcusable. The results of living in the dark, foul-aired, unsanitary tenements of our slums are: a great increase in sickness and premature