Columbia subject headings:
Brazil--Politics and government--1889-1930.
Middle class--Brazil--History.
Harvard subject headings:
Brazil--Economic conditions--19th century.
Brazil--Economic conditions.
Brazil--History--1889-1930.
Brazil--History--Empire, 1822-1889.
Brazil--Politics and government--1889-1930.
Middle class--Brazil--History.
Slavery--Brazil--History
Princeton subject headings:
Brazil--Economic conditions.
Brazil--Politics and government--1889-1930.
Middle class--Brazil--History.
Slavery--Brazil--History.