Briefly, and narrowing the question down to its smallest dimensions, what is wanted is this: The immediate erection on cleared spaces of tenements suitable to the classes dislodged. A system of inspection which would not only cause the demolition of unhealthy houses, but prevent unhealthy houses being erected. A certain space should be insisted on for every human being inhabiting a room--say 300 cubic feet for each person, and this regulation should be enforced by inspection of labouring-class dwellings, the enforcement of proper sanitary regulations, and a higher penalty for any breach of them; the providing of increased bath and washing accommodation in every crowded district; the erection of proper mortuaries in every parish; and the preservation in every district of certain open spaces to act as lungs to the neighbourhood--all these should be items in any remedial scheme. Beyond this, the poor should be encouraged in every possible way to decentralize. They must at present all crowd round the big centres of employment, because the means of travelling to and fro are beyond the reach of their slender purses. But if a system of cheap conveyance by tram or rail for the working-classes could be developed, they would scatter themselves more and more about the suburbs, and by their own action reduce the exorbitant rents they are now called upon to pay. Again, there should be in all new blocks of tenements built for this class accommodation for the hawkers and others who have barrows which they must put somewhere, and who are compelled at times to house the vegetable and animal matter in which they deal. A man who sells cabbages in the streets cannot leave his unsold stock to take care of itself at night, so he takes it home with him. At present he and his family generally sleep on it in their one room, but lock-up sheds and stabling for donkeys and ponies would obviate all the evils of the present system. The men are quite willing to pay for a little extra accommodation, and the removal of the mischief which comes of whole areas polluted with decaying vegetable matter is at least worth an experiment. The density of the population in certain districts, and the sanitary defects of the tenements, are, at present, absolute dangers to the Public Health. On this ground alone it is desirable to agitate for reform; but there is a broader ground still--humanity. It is on that broad ground I venture to ask those who by these scant sketches of a great evil have become in some slight way acquainted with it, to raise their voices and give strength to the cry which is going up at last for a rigid and searching inquiry into the conditions under which the Poor of this vast city live. To leave the world a little better than he found it is the best aim a man can have in life, and no labour earns so sweet and so lasting a reward as that which has for its object the happiness of others.