In the November AT PENN calendar, the wrong locations were listed for two events:
The exhibit, Brower Propulsion Laboratory: BPL-003 MMM, beginning November 20 will take place at the Esther Klein Gallery.
The Charles C. Leighton, MD Memorial Lecture on November 13 at noon will be at Claudia Cohen Hall, G17. RSVP at www.upenn.edu/ldi/.
We regret the errors. –Eds.