'The present evils of city life are temporary and remediable. The abolition of the slums, and the destruction of their virus, are as feasible as the drainage of a swamp, and the total dissipation of its miasmas. The conditions and circumstances that surround the lives of the masses of the people in modern cities can be so adjusted to their needs as to result in the highest development of the race, in body, in mind and in moral character.