**EDUCATION CLUB. "Bearings of Social Economy on Education." Dr. David Snedden, State Commissioner of Education. Emerson D. 8 P. M.

Wednesday, May 11.

BOARD OF OVERSEERS. Meeting at 50 State street, Boston, 11 A. M.

Thursday, May 12.

**LECTURE. "Deep Mine Hoisting Engines." Mr. S. T. Nelson, of the Sullivan Machinery Company. Mineralogical Lecture Room, 4.30 P. M.

*ZOOLOGICAL CLUB. Short papers and reviews. Zoological Laboratory, 4th floor, Room 4, 4.45 P. M.

**SPEAKING FOR THE BOYLSTON PRIZES. Sanders Theatre, 8 P. M.

Friday, May 13.

MATHEMATICAL CLUB. "Integration in Finite Form." Professor Birkhoff, of Princeton University. Common Room, Conant Hall, 8 P. M.

Saturday, May 14.

BUSSEY SEMINAR. "Graft Hybrids." Mr. John Detlefsen. Bussey Institution, 2 P. M