"The termination of the war marked the end of the old order of things in the United States and the beginning of a new era characterized by more extensive and concentrated efforts on the part of the government. It was, therefore, decided to divide the study into two parts. In this first volume we will present an account of the conditions of commercialized prostitution, and of the more important agencies developed to meet the situations as they existed prior to and at the time of our entrance into the world war. "--Introduction, page v.