Columbia subject headings:
Earth (Planet)--Age.
Geology in literature.
Literature and science.
Literature, Modern--19th century--History and criticism.
Harvard subject headings:
Geology in literature--Congresses.
Literature, Modern--19th century--History and criticism--Congresses
Princeton subject headings:
Geology in literature--Congresses.
Literature, Modern--19th century--History and criticism--Congresses.