Columbia University Library, New York.

Columbia University Library, New York.

Library, Columbia University, New York.

Columbia University Library, New York.

Library, Columbia University, New York.

Columbia University Library, New York.

Library of Columbia University, New York

Library of Columbia University, New York.

Library, Columbia University, New York City

Library of Columbia University, New York

Interior of Library, Columbia University, New York.

Interior of Library -- Columbia University, New York.

Interior of Library, Columbia University, New York.

Library, Columbia University, New York, N.Y.

Library, Columbia University, New York, N.Y.

Entrance to Library, Columbia University, New York.

The Library, Columbia University, New York.

Library, Columbia University.

The Library of Columbia University, New York City

The Library of Columbia University, New York City.