Columbia subject headings:
Andler, Charles, 1866-1933--Correspondence.
Herr, Lucien, 1864-1926--Correspondence.
Harvard subject headings:
Andler, Charles, 1866-1933--Correspondence.
Herr, Lucien, 1864-1926--Correspondence.
Princeton subject headings:
Andler, Charles, 1866-1933--Correspondence.
Herr, Lucien, 1864-1926--Correspondence.
Intellectuals--France--Correspondence.