Charity Ball

Memorial Hall will take on an unwonted air of activity this week--but just for a night. On Friday evening the aged structure will be the scene of a "Lucky" Charity Ball, sponsored by a Cambridge committee for the benefit, of the Cambridge Community Center. Among the feature attractions of the evening's entertainment are a fashion show and a concert by the Harvard Alumni Chorus.

The most unusual event in the course of the evening will be the exhibition fencing match between Rene Peroy, coach of the Harvard fencing team, and Joseph Lewis, former M.I.T. fencer.