Whether this is the class to whose public opinion the health and lives of the masses are to be entrusted, is a question which should be settled as soon as possible. Meanwhile let every man who would awake to the importance of Sanitary questions, do his best to teach and preach, in season and out of season, and to instruct, as far as he can, that public opinion which is as yet but public ignorance. Let him throw, for instance, what weight he has into the “National Association for the Advancement of Social Science.” In it he will learn, as well as teach, not only on Sanitary Reforms, but upon those cognate questions which must be considered with it, if it is ever to be carried out. Indeed, this new “National Association” seems the most hopeful and practical move yet made by the sanitarists. It may be laughed at somewhat at first, as the British Association was; but the world will find after a while that, like the British Association, it can do great things towards moulding public opinion, and compel men to consider certain subjects, simply by accustoming people to hear them mentioned. The Association will not have existed in vain, if it only removes that dull fear and suspicion with which Englishmen are apt to regard a new subject, simply because it is new. But the Association will do far more than that. It has wisely not confined itself to any one branch of Social Science, but taken the subject in all its complexity. To do otherwise would have been to cripple itself. It would have shut out many subjects—Law Reform, for instance—which are necessary adjuncts to any Sanitary scheme; while it would have shut out that very large class of benevolent people who have as yet been devoting their energies to prisons, workhouses, and schools. Such will now have an opportunity of learning that they have been treating the symptoms of social disease rather than the disease itself. They will see that vice is rather the effect than the cause of physical misery, and that the surest mode of attacking it is to improve the physical conditions of the lower classes; to abolish foul air, fouled water, foul lodging, and overcrowded dwellings, in which morality is difficult, and common decency impossible. They will not give up—Heaven forbid that they should give up!—their special good works; but they will surely throw the weight of their names, their talents, their earnestness, into the great central object of preserving human life, as soon as they shall have recognised that prevention is better than cure; and that the simple and one method of prevention is, to give the working man his rights. Water, air, light. A right to these three at least he has. In demanding them, he demands no more than God gives freely to the wild beast of the forest. Till society has given him them, it does him an injustice in demanding of him that he should be a useful member of society. If he is expected to be a man, let him at least be put on a level with the brutes.