Columbia subject headings:
Federer, Josef Anton Sebastian, 1794-1868--Correspondence.
Schelling, Friedrich Wilhelm Joseph von, 1775-1854--Influence.
Troxler, Ignaz Paul Vitalis, 1780-1866--Correspondence.
Troxler, Ignaz Paul Vitalis, 1780-1866.
Varnhagen von Ense, Karl August, 1785-1858--Correspondence.
Harvard subject headings:
Federer, Josef Anton Sebastian, 1794-1868--Correspondence.
Schelling, Friedrich Wilhelm Joseph von, 1775-1854--Influence.
Troxler, Ignaz Paul Vitalis, 1780-1866
Troxler, Ignaz Paul Vitalis, 1780-1866--Correspondence.
Varnhagen von Ense, Karl August, 1785-1858--Correspondence.
Princeton subject headings:
Federer, Josef Anton Sebastian, 1794-1868--Correspondence.
Schelling, Friedrich Wilhelm Joseph von, 1775-1854--Influence.
Troxler, Ignaz Paul Vitalis, 1780-1866--Correspondence.
Troxler, Ignaz Paul Vitalis, 1780-1866.
Varnhagen von Ense, Karl August, 1785-1858--Correspondence.