All delay is dangerous, and not only so, it is criminal. The evils of which we complain have been allowed to remain from a general ignorance of the laws of health. Up to a recent period, there was a want of knowledge amongst even the educated classes on these vital subjects. We cannot offer that plea now, to excuse our indifference or neglect. The evils have been fully explored, and most clearly exposed. The connexion between filth and disease—the suffering and vice flowing from them, have been exhibited in so striking a manner as to leave no room for mistake or misapprehension. _The knowledge creates a solemn responsibility_, _and makes us really chargeable with the consequences_. The knowledge gives us the power to arrest the progress of a class of diseases which strike down so many of our fellow-creatures in the years of their strength and usefulness. Every day of supineness is so much opportunity wasted. Every delay carries death to thousands. The admonition now read to us must not be suffered to pass with our usual heedlessness, or we may perchance be aroused by still more fearful means. The poor man is now sufficiently instructed to feel that many of the evils of which he complains admit of removal, and that the wealthier classes have the power to effect a change that would surround his condition with many comforts. Is there no danger in leaving such a feeling to grow and develop itself among the working classes? The security of the State depends upon the feelings of the people at large. What hold can there be upon their sympathies or affections, if they are left to themselves; to all the misery of their present lot, and with the knowledge, too, that those who have the power to help, though witnesses of their suffering and sorrow, like the priest and the Levite, turn away, and pass on the other side. We can expect no other fruit than alienation and disaffection. We shall see it manifested in contempt of the laws; in bitterness of feeling to the property classes; in an increasing disregard to the invitations of religion; in still greater recklessness of conduct, and still more irregular habits. Have the revolutions of 1848 been read to us in vain? What was there behind these mighty convulsions? Simply this:—The people had been little regarded; their appeals had met with no attention; their wants were neglected; their wrongs were left unredressed; government did not seem to secure or care for their prosperity and happiness. Tumult and disorder were the inevitable results. It is a law of God that men shall reap as they have sown. In this land we have, under Providence, secured some of the blessings of good government, and in consequence a hardy and industrious race has sprung up. It is in the power of the richer classes to gather round the institutions of the country the affections of the people at large. They may do much to banish the grim forms of disease and want which now threaten the poor man’s home.