Avery building at Columbia University.

Avery Library at Columbia University.

Columbia University [Ceiling.]

Columbia University [Ceiling.]

Columbia University. St. Paul's Chapel. Detail of rear doorway showing upper detail

535 West 114th Street. Columbia University Library. Interior, Butler Library of Philosophy, ceiling

Low Memorial Library at Columbia University.

Low Memorial Library at Columbia University.

Low Memorial Library at Columbia University.

Low Memorial Library at Columbia University.

Low Memorial Library at Columbia University.

Low Memorial Library at Columbia University.

Low Memorial Library at Columbia University.

Relief profile in ceiling of Avery Hall, Columbia University.

Relief profile in ceiling of Avery Hall, Columbia University.

Relief profile in ceiling of Avery Hall, Columbia University.

Relief profile in ceiling of Avery Hall, Columbia University.

Relief profile in ceiling of Avery Hall, Columbia University.

Earl Hall at Columbia University.

Stairs to Low Memorial Library at Columbia University.