Columbia subject headings:
Harvard subject headings:
Education--Germany--History--19th century
Education--Philosophy--History--19th century
Educators--Germany--Biography
Technische Universität Darmstadt--History.
Princeton subject headings:
Education--Germany--History--19th century.
Education--Philosophy--19th century.
Educators--Germany--Biography.
Schacht, Theodor, 1786-1870.
Technische Universität Darmstadt.