Principal Disputants.- Affirmative: D. King and W. R. Travis.- Negative: W. S. Hockley and M. S. Hyman.

Open to all students of the University.

Concert. Annual Spring Concert of the Harvard Glee, Banjo and Mandolin Clubs, and the Pierian Sodality. Sanders Theatre, 8 p. m.

18. FRIDAY.Divinity School. Preaching Service. Divinity Chapel, 7.30 p. m.

Open to the public.

Harvard Engineering Society. Railway Signaling. Mr. A. H. Johnson. Jefferson Physical Laboratory, 7.45 p. m.

Open to the public.

Wendell Phillips Club. The Need of Able Public Speakers. Governor F. T. Greenhalge. Sanders Theatre, 8 p. m. Second balcony open to the public.

ADDRESS BY SWAMI VIVEKANANDA.On the evening of Wednesday, May 16, at 8 o'clock, in Sever 11, an address will be given under the auspices of the Harvard Religious Union by Swami Vivekananda, a Hindoo monk. The public are invited. Vivekananda is an adherent of the ancient Brahmin faith of India, and was for eight years the disciple of the sage Ram Krishna. He is well qualified, both by his attainments in native learning and by unusual gifts of eloquence, to expound to a western audience the beliefs of his countrymen. His addresses at the World's Parliament of Religions have attracted great attention.