Temple University Department of Mathematics The Emil Grosswald Lectures SHING-TUNG YAU  HARVARD UNIVERSITY will speak on   Harmonic Maps and Applications in Geometry Monday, April 11, 1994, 4:00 P.M. Kiva Auditorium, Ritter Hall Annex     Counting Rational Curves in Algebraic Manifolds Tuesday, April 12, 1994, 4:00 P.M. Kiva Auditorium, Ritter Hall Annex     Eigenvalues of the Laplacian Wednesday, April 13, 1994, 2:30 P.M. Walk Auditorium, Ritter Hall Annex             Tea will be served before the first two lectures at 3:30 P.M. and after the last lecture Temple University, Main Campus, Philadelphia, PA 19122   return to the Department of Mathematics