1834-1903 1855-1941 1868-1916 1869-1939 1887-1968 1890-1977 1894-1946 1903-1970 1938- 20thcentury 700 aestheticsduchamp american artistic biography brancusi comparativestudiesessaycontemporaryart20thcentury constantin criticismandinterpretationbrancusi druet duchamp duveen eugène european exhibitions gabo hansvan jamesmcneill jean-françois josephduveen lawandart limet lászló marcel mark meereren moholy-nagy naum photography radich richard romania romanian rothko sculptors sculpture serra stephen trials whistler