Columbia subject headings:
Harvard subject headings:
Geologists--Germany--Gotha--Biography.
Gotha (Germany)--Officials and employees--Biography.
Hoff, Karl Ernst Adolf von, 1771-1837.
Princeton subject headings:
Diaries.
Geologists--Germany--18th century--Diaries.
Geologists--Germany--19th century--Diaries.
Hoff, Karl Ernst Adolf von, 1771-1837--Diaries.
Public officiers--Germany--18th century--Diaries.
Public officiers--Germany--19th century--Diaries.