Reflections of summer by Ruby Wallau July 10, 2020 Share Facebook LinkedIn Twitter Kristin Ader, a business student, and Elizabeth Liu, who studies mathematics, work by the Koi Pond during a hot summer day on the Boston campus. Photo by Ruby Wallau/Northeastern University Kristin Ader, a business student, and Elizabeth Liu, who studies mathematics, work by the Koi Pond during a hot summer day on the Boston campus. Photo by Ruby Wallau/Northeastern University