Columbia subject headings:
Chadwick, Edwin, 1800-1890.
Great Britain--Politics and government--19th century.
Great Britain--Social conditions--19th century.
Public health--Great Britain--History.
Harvard subject headings:
Chadwick, Edwin, 1800-1890
Great Britain--Politics and government--19th century
Great Britain--Social conditions
Princeton subject headings:
Chadwick, Edwin, 1800-1890.
Great Britain--Politics and government--19th century.
Great Britain--Social conditions.