Columbia subject headings:
Harvard subject headings:
Frederick William IV, King of Prussia, 1795-1861--Correspondence.
Germany--Kings and rulers--Correspondence.
Prussia (Germany)--Kings and rulers--Correspondence.
William I, German Emperor, 1797-1888. Correspondence.
Princeton subject headings:
Baden (Germany)--History--Revolution, 1848-1849.
Crimean War, 1853-1856.
Europe--Politics and government--1815-1871.
Frederick William IV, King of Prussia, 1795-1861--Correspondence.
Germany--History--Revolution, 1848-1849.
Germany--Kings and rulers--Correspondence.
Prussia (Germany)--Politics and government--1815-1870.
William I, German Emperor, 1797-1888. Correspondence.