Columbia subject headings:
Harvard subject headings:
Berlin (Germany)
Bluhm, Agnes, 1862-1943--Correspondence.
Eugenics--History
Genetics--History
Ploetz, Alfred J., 1860-1940--Correspondence.
Princeton subject headings:
Berlin (Germany)
Bluhm, Agnes, 1862-1943--Correspondence.
Eugenics--Germany--History--20th century.
Feminists--Germany--Correspondence.
Ploetz, Alfred J., 1860-1940--Correspondence.
Women physicians--Germany--Correspondence.