Columbia subject headings:
Grammar, Comparative and general--History--18th century.
Grammar, Comparative and general--History--19th century.
Linguistics--Europe--History--18th century.
Linguistics--Europe--History--19th century.
Harvard subject headings:
Grammar, Comparative and general--History--18th century.
Grammar, Comparative and general--History--19th century.
Linguistics--Europe--History--18th century.
Linguistics--Europe--History--19th century.
Princeton subject headings:
Historical linguistics--History.
Ideology--History.
Language and culture.
Language and history.