24 Remarkable Reptiles; learn about snakes, lizards and turtles; 2-3:30 p.m.; $10, $8/members; register: (215) 247-5777 ext. 125 (Morris Arboretum).
21 Islam: Power of an Idea; 6-8:30 p.m.; Penn Museum; $5; register: (215) 898-4066 (Middle East Center).
21 Italian Play Production Class–Antigoni; 8:30 p.m.; rooftop lounge, Harrison College House (Center for Italian Studies; Romance Languages).
21 Improbable–Adam Fawer; 6:30 p.m.; Penn Bookstore.
27 Promises I Can Keep–Kathryn Edin and Maria Kefalas; 7 p.m.; Penn Bookstore.
20 Does Giving People the Punishment They Deserve Help Reduce Crime?; Paul Robinson, law; 4 p.m.; rm. B6, Stiteler Hall (Criminology; SAS).
26 The Image of the Unloved Wife; Leo Steinberg, history of art; 5:15 p.m.; rm. B1, Meyerson Hall (History of Art).
Deadline:The deadline for the Summer AT PENN calendar is Tuesday, May 10. For information see www.upenn.edu/almanac/calendar/caldead-real.html.
Almanac, Vol. 51, No. 29, April 19, 2005