Columbia subject headings:
Harvard subject headings:
Dohrn, Anton, 1840-1909.
Du Bois-Reymond, Emil, 1818-1896.
Physiologists--Germany--Correspondence.
Princeton subject headings:
Dohrn, Anton, 1840-1909.
Du Bois-Reymond, Emil, 1818-1896.
Physiologists--German--Correspondence.