April 12. Sunday.Appleton Chapel, 7.30 p. m. Rev. George William Douglas, D. D., of New Haven, Conn.

Week-day morning prayers begin at 8.45 a. m. No seats are reserved.

Rev. E. Winchester Donald, D. D., will conduct prayers from April 14 to April 18 and from April 27 to May 2.

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

Dr. Donald may be found at Wadsworth House 1 daily from 9 to 11.

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

Seminary of American History and Institutions. Interstate Conflicts, 1783-1789. Mr. E. H. Goodwin. University 20, 3.30 p. m.

Seminary of Economics. The Taxation of Sugar in the United States since 1860. Mr. C. S. Griffin. University 23, 4.30 p. m.

Physical Colloquium. Air Thermometer. Mr. H. Edwards. Jefferson Physical Laboratory, Room 24, 5 p. m.

Harvard Religious Union. Weekly Meeting and Discussion. Subject: Browning and Aspiration. Parlors of the First Parish Church, 6.45 p. m.

Open to all members of the University.

Harvard Choral Class. Pirates of Penzance (in concert form). Sanders Theatre, 8 p. m.

A limited number of tickets will be for sale at Lower Dane Hall from 5.30 to 6 p. m. on April 11 and 13.

14. Tuesday.Faculty of Arts and Sciences. Meeting at University 5, 4 p. m.

English 6. Oral Debate. Harvard 1, 3.30 p. m.