Columbia subject headings:
Harriot, Thomas, 1560-1621.
Science--Great Britain--History--Sources.
Scientists--Great Britain--Biography.
Harvard subject headings:
Harriot, Thomas, 1560-1621.
Science--Great Britain--History--Sources.
Scientists--Great Britain--Biography
Princeton subject headings:
Harriot, Thomas, 1560-1621.
Science--Great Britain--History--Sources.
Scientists--Great Britain--Biography.