Doesn't it seem a little strange to an outsider that the Board of Health keep on hand, as it were, block after block of tenement houses, where both landlords and tenants deliberately set the law at defiance, which they can show off at call? There could not be a greater folly than to put this question aside as a matter only interesting to those poor people themselves. The slavery of Uncle Tom and his woolly-headed children cursed the plantation house, in the end, as much as it did the cabin. We must look after these people and help them for the sake of others, if not on their own account. Dr. John S. Billings, in an address before the American Academy of Political and Social Science in February of this year, says: "When diphtheria prevails in a tenement house, many school children are endangered, and the most perfect plumbing in a house affords little protection against the entrance of this disease, if it is prevailing in the vicinity. Typhus and smallpox do not confine their ravages to the vicious and foul, after they have acquired malignancy amongst them. Mingled with those who might not be worth saving, is a much larger number of honest, industrious, and fairly intelligent and energetic poor people who live by days' wages, and are struggling against their surroundings to improve their condition, and especially to give their children a fairer chance in the race for life than they themselves have had. These last are the people whom it is worth while to help for their own sake. You will observe," says this cool-headed doctor, "that I am considering this matter entirely from the money point of view, without reference to religion or morals or altruism. The question, 'Am I my brother's keeper?' is far more important, I admit; but I confine myself to a lower plane--to the bread-and-butter aspects of municipal life. Great numbers of the incompetent, vicious, idle, deformed, or starved-brain class have been poured into this country by immigration during the last fifty years, and have filled our slums and tenement houses, our hospitals, asylums, alms-houses, and jails to overflowing. They cannot escape the results of their physical organization, which, in its turn, is an inherited result of ancestral degeneration. For them we may 'hope the best, but hold the present, fatal daughter of the past.' Their death rates are from two to three times as great as those of the better class of population; one-fourth of their sickness is treated by charities, and one-third of those who die among them are buried at public expense. The districts in which they live require a larger proportion of the work of city officials, inspections, removal of nuisances, police, the courts, etc.; and, on the other hand, they contribute but little to municipal or other taxation. All this is well known; but we have not yet arrived at the stage of applying efficient and systematic prevention, which is perfectly possible, and are still pottering with the so-called remedies