LECTURE: Dr. Marianne Sommer of the Swiss Federal Institute of Technology is giving a lecture called "Popular Primates: A Time-Travel Through National Geographic." The talk is a reflection on the history of National Geographic, and how public interest in primates has been shaped since the publication's inception in 1888. Hosted by broadcaster Erika Ritter. OISE (252 Bloor Street West), 6 p.m., $20. THEATRE: The last hurrah of local actor/musician Henry Svec's musical/comedy project The Boy......