Columbia subject headings:
Architects--United States--Biography--Exhibitions.
Architecture--Washington (D.C.)--History--19th century--Exhibitions.
Cluss, Adolph, 1825-1905--Exhibitions.
German American architects--United States--Biography--Exhibitions.
Washington (D.C.)--Buildings, structures, etc.--Exhibitions.
Harvard subject headings:
Architecture--Washington (D.C.)--19th century.
Cluss, Adolph, 1825-1905--Criticism and interpretation.
Princeton subject headings: