Columbia subject headings:
Harvard subject headings:
Grassmann, Hermann, 1809-1877.
Mathematicians--Germany--Biography
Mathematics--History--19th century
Mathematics.
Mathematics_$xHistory.
Philologists--Germany--Biography
Physicists--Germany--Biography
Princeton subject headings:
Grassmann, Hermann, 1809-1877.
High school teachers--Germany--Biography.
Mathematicians--Germany--Biography.
Mathematics--History--19th century.
Physicists--Germany--Biography.