Columbia subject headings:
Comte, Auguste, 1798-1857--Friends and associates.
Comte, Auguste, 1798-1857.
Ecole polytechnique (France)
Philosophers--France--Biography.
Harvard subject headings:
Comte, Auguste, 1798-1857.
Ecole polytechnique (France)--History--19th century.
Philosophers--France--Biography
Princeton subject headings: