Wednesday, Dec. 13.

Board of Overseers. Special meeting at No. 50 State St., Boston, 11 a. m.

Prospect Union Course. V. Lecture on Dickens. Mr. Copeland. Sever 11, 4 p. m. Open to the public. Admission by tickets only.

Semitic Conference. Origin of the Sabbath. Professor Toy. Sever 8, 4.30 p. m.

*Physical Colloquium. Ionization of Gases. Mr. G. W. Pierce. Jefferson Physical Laboratory, room 24, 5 p. m.

*Harvard Christian Association. Foreign Missions Meeting. Phillips Brooks House, 6.45 p. m.

*Student Volunteer Committee. Stereopticon Lecture: Public Baths and Gymnasia. Hon. Josian Quincy, Mayor of Boston. Address by Mr. Robert. A. Woods, of the South End House. Lecture Room of the Fogg Museum, 8 p. m.