Columbia subject headings:
Deutsche Akademie der Naturforscher Leopoldina--History.
Deutsche Akademie der Naturforscher Leopoldina--Presidents.
Learned institutions and societies--Germany--History.
Natural history--Germany--Societies, etc.--History.
Harvard subject headings:
Deutsche Akademie der Naturforscher Leopoldina--History.
Deutsche Akademie der Naturforscher Leopoldina--Presidents.
Learned institutions and societies--Germany--History.
Natural history--Germany--Societies, etc.--History.
Princeton subject headings:
Deutsche Akademie der Naturforscher Leopoldina--History.
Deutsche Akademie der Naturforscher Leopoldina--Presidents.
Learned institutions and societies--Germany--History.
Natural history--Germany--Societies, etc.--History.