Columbia subject headings:
Hegel, Georg Wilhelm Friedrich, 1770-1831. Naturphilosophie.
Philosophy of nature.
Harvard subject headings:
Hegel, Georg Wilhelm Friedrich, 1770-1831--Congresses.
Philosophy of nature--Congresses
Philosophy--Congresses
Science--Philosophy--Congresses
Princeton subject headings:
Hegel, Georg Wilhelm Friedrich, 1770-1831. Naturphilosophie.
Philosophy of nature.