Saturday, May 21.

*MORNING PRAYERS. Rev. Paul Revere Frothingham. Appleton Chapel, 8.45 A. M.

BUSSEY SEMINAR. "Chromosomes in Heredity." Mr. W. R. B. Robertson and Mr. R. A. Spaeth. Bussey Institution, 2 P. M.

Sunday, May 22.

**MORNING SERVICE. Rev. Paul Revere Frothingham, S.T.B., of Boston. Appleton Chapel, 11 A.M. Students of the University enter at the south side-door. Students accompanied by friends enter at the south side-door. Officers of the University and their families enter at the north side-door. No seats except in the galleries will be open to the public.

**BUSSEY INSTITUTION LECTURES. "Making New Plants by Selection." Professor East. Bussey Institution, 4 P. M.

Monday, May 23.

PRESIDENT AND FELLOWS OF HARVARD COLLEGE. Meeting at 50 State street, Boston, 10.30 A.M.

*SEMINARY OF AMERICAN INSTITUTIONS. "Primary Elections." Mr. R. C. Woolsey. Sever 9, 4 P. M.

*PHYSICAL COLLOQUIUM. "Angstrom: on the Absorption of Gases." Mr. D. L. Webster. Jefferson Physical Laboratory, Room 24, 5 P. M.

SEMINARY ON AIMS AND METHODS OF PHILOSOPHICAL STUDY AND TEACHING. Topic: "The Definition and the Training of 'The Reason.'" Professor Royce and others. 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.

Tuesday, May 24.

FACULTY OF ARTS AND SCIENCES. Meeting at University 5, 4 P. M.

*GEOLOGICAL CONFERENCE. "Geology of the Ice River District, B.C." Mr. C. T. Brodrick. "Progress in Antarctic Meteorology." Mr. B. M. Varney. "Polar Climates and Antarctic Geology." Professor Davis. Mineralogical Lecture Room, 8 P. M.

Wednesday, May 25.