Caltech President Dr. David Baltimore, one of the world’s leading scientists, will speak on the search for an AIDS vaccine, “Finding the Cure,” as part of the Jet Propulsion Laboratory-sponsored von K�rm�n Lecture Series, Thursday, Feb. 17 at JPL, and on Friday, Feb. 18 at Pasadena City College. Both lectures begin at 7 p.m. Admission is free, and seating is on a first-come, first-served basis.