doi:10.7916/D80Z78Q2Darkness and daylight: or, Lights and shadows of New York life. A woman's narrative of mission and rescue work in tough places, with personal experiences among the poor in regions of poverty and viceCampbell, Helen, 1839-1918bookstextPoor--New York (State)--New York.Charities--New York (State)--New York.Crime--New York (State)--New York.New York (N.Y.)--Social life and customs--19th century.New York (N.Y.)--Social conditions.