Columbia subject headings:
Harvard subject headings:
Communicable diseases--Great Britain--Prevention--History--19th century.
Emigration and immigration--Health aspects--Great Britain--History--19th century.
Harbors--Law and legislation--Great Britain--History--19th century.
Preventive health services--England.
Quarantine--England.
Quarantine--Great Britain--History--19th century.
Quarantine--Law and legislation--Great Britain--History--19th century.
Princeton subject headings:
Preventive health services--England.
Quarantine--England.