Columbia subject headings:
Botany--Wisconsin--History.
Curtis, John T. (John Thomas), 1913-1961.
Plant ecology--Wisconsin--History.
Harvard subject headings:
Botanists--United States--Study and teaching.
Botany--Wisconsin--History.
Botany--Wisconsin--Research.
Curtis, John T. (John Thomas), 1913-1961.
Plant ecology--Wisconsin--History.
Plant ecology--Wisconsin--Research.
Plant ecology--Wisconsin--Study and teaching.
Princeton subject headings:
Botany--Wisconsin.
Curtis, John T. (John Thomas), 1913-1961.
Plant ecology.