A student walks by two limestone sculptures on the south side of Foellinger Auditorium earlier this week. Part of a four-piece collection purchased in 1937, the figures are titled “Sons and Daughters of Deucalion and Pyrrha,” by Lorado Taft. The other two figures are on the east side of the Library. The two males and two females, ranging from 5 feet to 7 feet, were carved from Indiana limestone for the Century of Progress exposition in Chicago in 1933.