Columbia subject headings:
Bernays, Jacob, 1824-1881--Correspondence.
Heyse, Paul, 1830-1914--Correspondence.
Harvard subject headings:
Bernays, Jacob, 1824-1881--Correspondence.
Classicists--Germany--Correspondence.
Heyse, Paul, 1830-1914--Correspondence.
Jews--Germany--Correspondence.
Philologists--Germany--Correspondence.
Princeton subject headings:
Authors, German--19th century--Correspondence.
Bernays, Jacob, 1824-1881--Correspondence.
Classicists--Germany--19th century--Correspondence.
Heyse, Paul, 1830-1914--Correspondence.
Philologists--Germany--19th century--Correspondence.