Last day for receiving names of competitors for the Boylston Prizes for Elocution.

Mathematical Seminary. Line co-ordinates in space. Mr. C. H. Ashton. 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.

Boylston Chemical Club. The Refining of Petroleum and Kerosene. Mr. Harris E. Sawyer. Boylston 9, 7.30 p.m.

Open to all members of the University.

Sanskrit Conference, 12. Later Vedic literature - the Upanishads. Professor Lanman, 9 Farrar street, 7.45 p.m.

Geological Conference, Mr. T. W. Vaughan, "Correlation of the American Cretaceous and Tertiaries;" Mr. J. A. Merrill, "Structure and Fertilization of Soils." Geological Laboratory, 7.45 p.m.

Reading, Shakespeare's Comedy Twelfth Night.' Mr. J. J. Hayes. Sever 11, 8 p.m.

Open to the public.