of the Biology and Psychology departments and the following endowed laboratories: Levi Jay Hammond Laboratory of Comparative Anatomy, the W. Wayne Babcock Laboratory of General Biology, the Anna Heinly Schellhammer Laboratory, and the Parlee Laboratory. Myrin Library Opened in 1971, renovated in 1988, and again in 2004–05. The old Freeland-Stine-Derr dormitory complex was demolished in 1968 to make way for the library. Myrin houses more than 420,000 volumes, 202,000 microforms, 32,000 audio-visual materials, 3,800 e-books, and offers on-site and remote access to approximately 25,900 print, microform and electronic periodical titles. The library is also one of only three U.S. Government depositories in Montgomery County, Pennsylvania and, as such, receives print and electronic federal documents for the collection. Myrin Library is home to the Pennsylvania Folklife Society Collection (an extensive Pennsylvania German archive), the Linda Grace Hoyer Papers, the Grundy Collection on South African history, and the college's archives, the Ursinusiana Collection. Olin Hall Opened in 1990, named for the F.W. Olin Foundation. Olin Hall contains a 320-seat lecture hall, a 63-seat tiered classroom, a 42-seat tiered classroom, a Writing Center, eight traditional classrooms and four seminar rooms. Floy Lewis Bakes Center Dedicated in 2001 upon the expansion and renovation of Helfferich Hall, 1972. The Field House encompasses the D.L. Helfferich Hall of Health and Physical Education and the William Elliott Pool. The field house pavilion opened in 2001, while the other buildings were dedicated in 1972 in honor, respectively, of the ninth president of Ursinus College and Dr. William Elliott. Helfferich Hall now includes completely renovated locker and training rooms, and a two-story, glass-enclosed area for fitness and recreation. The physical education complex serves both men and women with three full-size basketball courts; locker rooms and team rooms; wrestling room; weight room; dance studio; classrooms; a regulation collegiate-sized swimming pool; squash and handball courts, and a gymnastics space. Kaleidoscope Performing Arts Center Opened in April 2005 with a performance by jazz musician Wynton Marsalis. Within it is the Lenfest Theater, a 350-seat state-of-the-art proscenium arch theater. There is also a black box "experimental" studio theater, a box office and concession booth, a rehearsal studio, a scenic workshop, as well as teaching support space and a gallery and work space for art students. Innovation and Discovery Center (IDC) Opened in October 2018. Houses the Parlee Center for Science and the Common Good and the U-Imagine Center for Integrative and Entrepreneurial Studies.