The document contains a series of photographs from Jacob Riis documenting immigrant life in late 19th century New York City. The photos show the harsh living conditions faced by immigrant families living in tenement housing and slums, including dilapidated wooden shacks, families living under dump sites, and children playing in alleys and on rooftops due to lack of open space. The photos provide a window into the squalor and deprivation experienced by immigrants in New York at that time.