Tuesday, April 11.

**MORNING PRAYERS. Rev. Professor Edward C. Moore. Appleton Chapel, 8.45 A. M. The University preacher may be found at Wadsworth House 1 daily from 9 to 11 o'clock in the morning.

*LECTURE. "Geology of Fuels, Fluxes, and Refractory Materials." X. Professor Graton. Rotch Building, 8 A. M.

BUSSEY SEMINAR. "Inheritance of Coat and Eye Pigmentation in Mice." Mr. C. C. Little. Bussey Institution, 3 P. M.

**LECTURE. "Freedom of the Will. II. Ethical Aspects." Dr. B. A. Dumm, Emerson F, 4.30 P. M.

GEOLOGICAL CONFERENCE. "A Visit to Southern Patagonia." (Illustrated). Mr. W. G. Reed. Mineralogical Lecture Room, 4.30 P. M. Open to graduates and to members of the University.