23. TUESDAY.History 6. Lecture on the Roman Catacombs. I. Illustrated Professor Emerton. Harvard 1. 11 a.m.

Open to the public.

Mathematical Seminary. Application of complex numbers to trigonometry. Mr. A. B. Frizell. University 19, 3.30 p.m.

The lecture will be followed by a discussion of problems to be announced on the bulletin board.

Open to all members of the University.

Faculty of Arts and Sciences. University 5, 4 p.m.

Illustrated Lecture. The Triumph and Fall of Nineveh. The New Babylonian Empire (722-538 B. C.) Professor D. G. Lyon. Boylston Hall, 7.30 p.m.

The public are invited.

Geological Conference. Mr. F. P. Gulliver, "The Ice-sheet on the Newtonville Sand-plain": Mr. T. A. Jaggar, "Fossil Ripple-marks"; Mr. J. E Spurr, "The Iron Region at Torbrook, N. S." Geological Laboratory, 7.45 p.m.

24. WEDNESDAY.Commencement Parts. Reading of English, Undergraduate Parts, before the Committee. Sanders Theatre, 2.30 p.m.

English 6. Oral Debate. Harvard 6, 3.30.

Question: "Resolved, That the Cabinet system of government better represents the popular will than the Congressional system."

Principal Disputants. - Affirmative: F. C. Thwaits and J. Wiggin. - Negative: W. N. Cottrell and B. H. Rounsaville. Open to all students of the University.

Divinity School. Debate. Divinity Library. 4.30 p.m.