This is an audio summary provided by City Vision University of the book "Salvation in the Slums: Evangelical Social Work, 1865-1920" by Norris Magnuson published in 1977. This is A historical survey of the philanthropic and social welfare activities conducted by popular evangelical revivalist movements, including the Salvation Army and various rescue missions, among the urban poor, immigrants, and outcasts in American cities from 1865 to 1920. This audio summary was developed using NotebookLM.