This volume had its origin in experiences which came to me in the daily duties of a city pastorate. The inadequate wages received by some of the members of my own congregation, and the impoverished and unhealthy surroundings of many of the poor people who came for me to christen their children, pray with their sick, or bury their dead, so aroused my sympathy for the victims, and my indignation against the cruel or indifferent causes of their misery, that I determined upon a thorough and systematic investigation of the conditions of life among the worthy Boston poor.