Elias Burstein, of Bryn Mawr, PA, on June 17, age 99. Survived by wife Rena, daughters Joanna Mitro (Gary), Sara Donna, and Mimi Burstein (Glenn Frantz), and grandchildren Graham and Susanna Mitro. He was professor of physics at the University of Pennsylvania for over 59 years. Relatives and friends are invited to Funeral Services Tuesday, 10 A.M. Main Line Reform Temple, 410 Montgomery Avenue, Wynnewood. Interment will be private. Goldsteins' Funeral Home serving the family.