Columbia subject headings:
Harvard subject headings:
Art and photography.
Hill, David Octavius, 1802-1870.
Nègre, Charles, 1820-1880.
Photography, Artistic--Exhibitions
Salzmann, Auguste.
Princeton subject headings:
Hill, David Octavius, 1802-1870--Exhibitions.
Hill, David Octavius, 1802-1870.
Nègre, Charles, 1820-1880--Exhibitions.
Nègre, Charles, 1820-1880.
Photography, Artistic--Exhibitions.
Photography--History--Exhibitions.
Salzmann, Auguste--Exhibitions.
Salzmann, Auguste.