Columbia subject headings:
Harvard subject headings:
Educational exchanges--Germany--History--19th century.
Educational exchanges--Germany--History--20th century.
Educational exchanges--United States--History--19th century.
Educational exchanges--United States--History--20th century.
Germany--Relations--United States
Science--Study and teaching (Higher)--Germany.
United States--Relations--Germany
Universities and colleges--Germany--History--19th century.
Universities and colleges--Germany--History--20th century.
Universities and colleges--United States--History--19th century.
Universities and colleges--United States--History--20th century
Princeton subject headings:
Educational exchanges--Germany--History--19th century.
Educational exchanges--Germany--History--20th century.
Educational exchanges--United States--History--19th century.
Educational exchanges--United States--History--20th century.
Germany--Relations--United States.
Science--Study and teaching (Higher)--Germany.
United States--Relations--Germany.
Universities and colleges--Germany--History--19th century.
Universities and colleges--Germany--History--20th century.
Universities and colleges--United States--History--19th century.
Universities and colleges--United States--History--20th century.