It is vain to conceive that bricks and mortar, and the multiplication of churches and chapels, would accomplish the purpose. The sudden exhibition of many places of worship would rather avert than attract the people, who, through our long neglect of them, are full of prejudices and superstitions about such matters. The money laid out on these edifices would be better expended on an increase and maintenance of living agents of every sort and degree, as manifold, as various, and as special, as the wonderful congeries of human beings to whom their efforts would be addressed. All the several agencies now at work have their merits, and the conductors of them can recite many instances of real success. But there is a lower depth into which we have to descend, and descend, not by fits and starts, but regularly and systematically. It is the steady continuity of the effort, and not its occasional vigour, that will make the profound and lasting impression. And this continuity cannot be kept up by the committees and directors alone. It must draw the main force of its life from the zeal, the fervour, the hearty feeling, and class-experience of the workers themselves. They must be numerous and active, and not a few of them be drawn from the very ranks they are enlisted to assail. The first movements must be made on individuals, or at most on twos and threes. Every filthy court must be invaded, the dark and terrible retreats be disturbed and enlightened. Such labours may be--nay, will be--oppressive and revolting, but perseverance will drive away discouragement. Doubtless it is a fierce trial to stand day by day, and hour by hour, face to face and hand to hand with the inhabitants of these pestilential and gloomy recesses; but patience for a while, and they may be brought from the private conversation to the cottage lecture, from the lecture to the mission-room, from the mission-room to the church or chapel, from unqualified misery to comparative joy. The condition of their dwellings is an awful impediment; but even this, in many instances, may be partially overcome. The cause is great; and the blessing of God has ever rested on the prayers and labours of those who have sought to comfort and instruct the most suffering and degraded of the children of men. That such men are to be found, and that their efforts enjoy no small success, is proved by the narratives of this book. These excellent men have established the principle, they have produced the results. It only remains that many should arise to imitate their good example, and extend, far and wide, the operation of this wise and solid benevolence. And why should they not arise, and in sufficient numbers?