Columbia subject headings:
Harvard subject headings:
Merchant marine--Europe--History--18th century.
Navigation--Atlantic Ocean Region--History--18th century.
Navigation--Atlantic region--History--18th century.
Princeton subject headings:
America--Commerce--Europe.
Europe--Commerce--America.
Europe--History, Naval--17th century.
Europe--History, Naval--18th century.
Merchant marine--Europe--History--17th century.
Merchant marine--Europe--History--18th century.
Navigation--Atlantic Ocean Region--History--17th century.
Navigation--Atlantic Ocean Region--History--18th century.
Trade routes--History--17th century.
Trade routes--History--18th century.