Edward C. Pickering.

Observatory Open to Seniors.

By Edward C. Pickering. June 13, 1902

The Observatory will be open to members of the present Senior class of Harvard College, and to the graduating class

By Edward C. Pickering. June 12, 1902

The Observatory will be open to members of the present Senior class of Harvard College, and to the graduating class

By Edward C. Pickering. June 11, 1902

The Harvard College Observatory will be open to members of the present Senior class of Harvard College, and to the

By Edward C. Pickering. June 11, 1901

The Harvard College Observatory will be open to members of the present Senior Class of Harvard College, and to the

By Edward C. Pickering. June 08, 1901

The Harvard College Observatory will be open to members of the present Senior Class of Harvard College, and to the