Series 1 is comprised almost entirely of photographs taken by the University Photo Service, a separate student organization that has supplied much of the ASP 's photography over the years. However, some photographs may have been taken by ASP staff. Additionally, a small number of images originate from other sources, including the Associated Press, College Press Service, and Liberation News Service. A single illustration, noted in the container list below, is also included. While many of these images appeared in issues of the ASP , others may never have been published.