A trial debate, in which all members of the Club are invited to take part.

Geological Conference. Papers: The Geology of the Dents du Midi, in Switzerland. (Illustrated by a Model). Dr. G. J. Pfeiffer.- Review of Geikie 's "Founders of Geology." Mr. J. E. Woodman. Geological Laboratory, Room 2, M. Z., 7.45 p. m.

Open to all members of the University.

Chamber Concert. Mr. Rafael Joseffy, Pianist, and the Kneisel Quartet. Sanders Theatre, 7.45 p. m.

8. Wednesday.Board of Overseers. Meeting at No. 50 State St., Boston, 11 a. m.

Mathematical Conference. Papers: On the Eulerian Period in the Rotation of the Earth. Mr. H. Y. Benedict.- Geometrical Properties of Certain Lines of Force. Mr. W. H. Roever. Sever 20, 4.30 p. m.

Lecture on Greek Philosophy. IV. Plato. Professor Goodwin. Lecture Room of the Fogg Museum, 4.30 p. m.

Open to all members of the University and of Radcliffe College.

Department of French. Second Performance of Racine 's "Athalie." Sanders Theatre, 8 p. m.

9. Thursday.Lecture. Boswell 's Life of Johnson. Mr. Copeland. Sever 11, 3.30 p. m.

Open to the public.

Vesper Service. Appleton Chapel, 5 p. m.

The front seats are reserved for students and for officers of the University and their families, until 4.55.

Harvard Christian Association. Monthly Missionary Meeting. Mr. Robert R. Gailey, of Princeton. Holden Chapel, 6.45 p. m.

Open to all members of the University.