Amazon.com description: Product Description: Long ago it was said that “one half of the world does not know how the other half lives.” That was true then. It did not know because it did not care. The half that was on top cared little for the struggles, and less for the fate of those who were underneath, so long as it was able to hold them there and keep its own seat. There came a time when the discomfort and crowding below were so great, and the consequent upheavals so violent, that it was no longer an easy thing to do, and then the upper half fell to inquiring what was the matter. Information on the subject has been accumulating rapidly since, and the whole world has had its hands full answering for its old ignorance. In New York, the youngest of the world’s great cities, that time came later than elsewhere, because the crowding had not been so great. There were those who believed that it would never come; but their hopes were vain. Greed and reckless selfishness wrought like results here as in the cities of older lands. “When the great riot occurred in 1863,” so reads the testimony of the Secretary of the Prison Association of New York before a legislative committee appointed to investigate causes of the increase of crime in the State twenty-five years ago, “every hiding-place and nursery of crime discovered itself by immediate and active participation in the operations of the mob. Those very places and domiciles, and all that are like them, are to-day nurseries of crime, and of the vices and disorderly courses which lead to crime. By far the largest part—eighty per cent. at least—of crimes against property and against the person are perpetrated by individuals who have either lost connection with home life, or never had any, or whose homes had ceased to be sufficiently separate, decent, and desirable to afford what are regarded as ordinary wholesome influences of home and family.... The younger criminals seem to come almost exclusively from the worst tenement house districts, that is, when traced back to the very places where they had their homes in the city here.” Of one thing New York made sure at that early stage of the inquiry: the boundary line of the Other Half lies through the tenements.