Columbia subject headings:
Poor--New York (State)--New York.
Slums--New York (State)--New York.
Tenement houses--New York (State)--New York.
Harvard subject headings:
New York (N.Y.)--Social conditions--19th century.
Poor--New York (State)--New York
Poor.
Slums--New York (State)--New York.
Tenement houses--New York (State)--New York
Princeton subject headings:
Poor--New York (State)--New York.
Slums--New York (State)--New York.
Tenement houses--New York (State)--New York.