The tenements had bred their Nemesis, a proletariat ready and able to avenge the wrongs of their crowds. Already it taxed the city heavily for the support of its jails and charities. The basis of opposition, curiously enough, was the same at both extremes; owner and tenant alike considered official interference an infringement of personal rights, and a hardship. It took long years of weary labor to make good the claim of the sunlight to such corners of the dens as it could reach at all. Not until five years after did the department succeed at last in ousting the "cave-dwellers" and closing some five hundred and fifty cellars south of Houston Street, many of them below tide-water, that had been used as living apartments. In many instances the police had to drag the tenants out by force.
The work went on; but the need of it only grew with the effort. The Sanitarians were following up an evil that grew faster than they went; like a fire, it could only be headed off, not chased, with success. Official reports, read in the churches in 1879, characterized the younger criminals as victims of low social conditions of life and unhealthy, overcrowded lodgings, brought up in "an atmosphere of actual darkness, moral and physical." This after the saw had been busy in the dark corners ten years! "If we could see the air breathed by these poor creatures in their tenements," said a well-known physician, "it would show itself to be fouler than the mud of the gutters." Little improvement was apparent despite all that had been done. "The new tenements, that have been recently built, have been usually as badly planned as the old, with dark and unhealthy rooms, often over wet cellars, where extreme overcrowding is permitted," was the verdict of one authority. These are the houses that to-
