Columbia subject headings:
Harvard subject headings:
Dohrn, Anton, 1840-1909--Correspondence.
Physicians--Correspondence
Scientists--Correspondence
Virchow, Rudolf, 1821-1902--Correspondence.
Zoologists--Correspondence.
Princeton subject headings:
Dohrn, Anton, 1840-1909--Correspondence.
Science--Correspondence.
Virchow, Rudolf, 1821-1902--Correspondence.
Zoologists--Germany--Correspondence.