Monday, March 21.

*MORNING PRAYERS. Rev, Professor Edward Caldwell Moore. Appleton Chapel, 8.45 A. M.

*SEMINARY OF AMERICAN INSTITUTIONS. Address. Professor A. C. McLaughlin, of Chicago University. Sever 9, 3.30 P. M.

*SEMINARY OF ECONOMICS. "The Corn Trade Organization of England in the Middle Ages." Mr. N. S. B. Gras. Upper Dane 2, 4.30 P. M.

**CERCLE FRANCAIS LECTURES. "Contingence et Liberte." VII. M. Emile Boutroux. Emerson D, 4.30 P. M.

*PHYSICAL COLLOQUIUM. "The Relation of the Magnetic Condition of Iron to the Method by which it is Produced." Mr. L. A. Babbitt. Jefferson Physical Laboratory, Room 24, 5 P. M.

CHAMBER CONCERT. The Kneisel Quartet, assisted by Mr. Heinrich Gebhard. Lecture Room of the Fogg Museum, 8 P. M. Program: Cesar Franck, Quartet in D major; Claude Debussy, two Movements from Quartet in G minor, Brahms, Quintet in F minor, for Pianoforte, two Violins, Viola, and Violoncello, op. 34.

SEMINARY ON AIMS AND METHODS OF PHILOSOPHICAL STUDY AND TEACHING. (Joint Meeting with the Philosophical Club.) Topic: "The Limits of Rational Doubt." Mr. E. T. Dana. Emerson C, 7.30 P. M. Open to all Graduate Students of Philosophy who are registered either in Harvard or in Radcliffe, and also to all Undergraduate members of the Philosophical Club.

HARVARD-PRINCETON DEBATE Sixteenth Annual Debate. Singing by the Glee Club. Sanders Theatre, S. P. M. Question: "Resolved, That the Federal Government should have the power to impose an income tax, not apportioned among the States according to population." Applications for tickets should be addressed to Mr. G. L. Harding, Hollis 20, and should contain a stamped and addressed envelope. Members of the University will be allowed one ticket each. Tickets for the public and extra tickets for members of the University will be sold at twenty-five cents each. Extra tickets are on sale at the two stores of the Harvard Co-operative Society in Cambridge, and at Herrick's and the Adams House in Boston.