1. B. Chaboyer is at the Canadian Institute for Theoretical Astrophysics, 60 St. George Street, Toronto, Ontario M5S 1A7, Canada.
2. P. Demarque is in the Department of Astronomy, Yale University, New Haven, CT 06520-8101, USA.
3. P. J. Kernan is in the Department of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106-7079, USA.
4. L. M. Krauss is in the Departments of Physics and Astronomy, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106-7079, USA.