On a particularly warm and sunny winter afternoon, and after watching the 2010 Dance Prod during the weekend, Principia alumni Bob Armbruster, Christine Dunbar and Emily Ward look through past Sheaf yearbooks at the Guest House on February 28. They’ll be reconnecting in June for Principia’s first-ever Alumni Dance Retreat and Production, an opportunity for alumni to share the joy of their experience on and off the stage at Principia College. What charged this particular laugh? A look at 1960s hairstyles.