A memorial service for Bob Lewis will take place Saturday, Oct. 1, at Paepcke Auditorium in Aspen. A reception is at 1 p.m., and presentations will begin at 2 p.m.

Visionary, teacher and scientist Bob Lewis died in late July. Donations in his memory can be made to Aspen Field Biology Laboratory, P.O. Box 3669, Aspen, CO 81612.