Columbia subject headings:
Feudal law--Japan--History--19th century.
Marine accidents--Japan--History--19th century.
Shipping--Japan--History--19th century.
Harvard subject headings:
Feudal law--Japan--History--19th century.
Marine accidents--Japan--History--19th century.
Shipping--Japan--History--19th century.
Princeton subject headings:
Feudal law--Japan--History--19th century.
Marine accidents--Japan--History--19th century.
Shipping--Japan--History--19th century.