22. Sunday.Appleton Chapel, 7.30 p. m. Rev. T. Edwin Booth, D. D., of Philadelphia.

Weekday morning prayers begin at 8.45 a. m. No seats are reserved.

Rev. Francis G. Peabody, D. D., will conduct prayers from March 23 to April 4.

The preacher conducting prayers may be found at Wadsworth House 1 every weekday during his term of service.

Dr. Peabody may be found at Wadsworth House 1 daily from 11 to 1.

23. Monday.President and Fellows of Harvard College. Meeting at No. 50 State street, Boston, 10.15 a. m.

Seminary of American History and Institutions. Instances of Riots in the United States. Mr. D. M. Matteson. University 20, 3.30 p. m.

Physical Colloquium. Dissipation of Electrical Charges. Mr. A. Durward. Jefferson Physical Laboratory, Room 24, 5 p. m.

Seminary of Economics. The Bimetallic Situation. President Francis A. Walker. University 23, 8 p. m.

Exhibition of Lantern Slides. V. Illustrating the Fine Arts of the Middle Ages. Professor Moore. Lecture Room of the Fogg Museum, 8 p. m.

Open to the public.

24. Tuesday.Freshman Debating Club. Preliminary Trial Debate to select speakers for Yale-Harvard Freshman Debate. Harvard 1, 7.30 p. m.

The ten best men will be chosen to compete in the final trial debate. Trial is open to all Freshmen.

Geological Conference. Paper: Methods of Crystal Measurement. Dr. Charles Palache. Geological Laboratory, Room 2, M. Z., 7.45 p. m.

Open to all members of the University.