Columbia subject headings:
Harvard subject headings:
Europe--Description and travel.
Marsh, George Perkins, 1801-1882.
Turkey--Foreign relations--United States.
United States--Foreign relations--Turkey.
United States--Politics and government--1815-1861.
Vermont--Politics and government--1775-1865.
Princeton subject headings:
Europe--Description and travel.
Marsh, George P. (George Perkins), 1801-1882.
Turkey--Foreign relations--United States.
United States--Foreign relations--Turkey.
United States--Politics and government--1815-1861.
Vermont--Politics and government--1775-1865.