About one-fourth of all the poverty that has come within the scope of charitable investigation is directly caused by sickness. "In both American and English experience," writes Warner, "the percentage attributable to this cause sinks but once slightly below fifteen and never quite reaches thirty. The average is between twenty and twenty-five. This is one of the most significant facts brought out by these tables [of the statistical causes of poverty]. It is not one which the author anticipated when the collection of statistics began; and yet it has been confirmed and reconfirmed in so many ways that the conclusion seems inevitable that the figures set forth real and important facts. Personal acquaintance with the destitute classes has further convinced him that most of the {96} causes of poverty result from or result in a weakened physical and mental constitution, often merging into actual disease." [1] This fact gives added importance to all the efforts of modern charity to secure improved dwellings, open spaces, cheap baths, and better municipal sanitation for the poor. But improvement in these matters cannot come entirely from without; "the model tenement implies a model tenant." As a London authority puts it: "The condition of the house may degrade its occupants. The careless life and habits of the occupants will spoil the house, and make it filthy and unhealthy." The friendly visitor should try to make the family healthily discontented with unsanitary surroundings, and so prepare them for better quarters. Removing families from unfit tenements is not enough, however, if these tenements are almost immediately reoccupied. Their condition should be reported to the Board of Health, and, if condemned, we should see that no one else is permitted to move into them. I have often noticed that charity agents, {97} who work habitually in poor neighborhoods, get so accustomed to bad sanitary conditions that they hardly notice them. Volunteer workers are not so likely to fall into this error, though it is possible for volunteers to be very unobservant. They often feel that things are all wrong, without being able to state the specific difficulties. An observant visitor will learn the condition of the cellar, walls, yard, plumbing, and outhouses; will learn to take the cubic contents of a room in order to find out the air space for each sleeper; will learn the family method of garbage disposal; will see how the rooms are ventilated; and will learn all these things without asking many questions. Dampness is a very common cause of sickness; when the children cough it is a very simple matter to ask about the cellar, and even get permission to see it.