Mathematical Seminary. Mobius' Barycentrische Calcul. 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.

Boylston Chemical Club. Natural Gas. Mr. Godfrey L. Cabot. Boylston 9, 7.30 p.m.

Open to all members of the University.

Geological Conference. Mr. J. E. Spurr, "Iron Ores of Canada"; Mr. H. B. Goodrich, "Pre-Tertiary Glacial Periods"; Mr. R. A. Daly, "Secular Disintegration." Geological Laboratory, 7.45 p.m.

Sanskrit Conference, 9. General view of the Ancient Literature of India. Professor Lanman. No. Farrar St., 7.45 p.m.