Columbia subject headings:
China--History, Naval.
Food supply--China--History.
Food supply--East Asia--History.
Sailors--Nutrition--China--History.
Scurvy--China--History.
Harvard subject headings:
China--History, Naval.
Food supply--China--History.
Food supply--East Asia--History.
Sailors--Nutrition--China--History.
Scurvy--China--History.
Princeton subject headings:
China--History, Naval.
Food supply--China--History.
Food supply--East Asia--History.
Sailors--Nutrition--China--History.
Scurvy--China--History.