The University of Pennsylvania Libraries just got their 5 millionth volume, a rare hagadah. Unfortunately, their rare book collection is underutilized by the student body. What is so special about a rare book collection if nobody uses it. Excite has the story.\"Like the rest of Penn\'s unusual or uncommon 250,000 printed books, over 10,000 linear feet of manuscript collections, and more than 1,500 codex manuscripts -- many one-of-a-kind maps, broadsides, playbills, programs, photographs, prints, drawings and sound recordings -- are housed in the collection. And in about 10 minutes, you or any other Penn student can sit down, request and read from the same copy of Paradise Lost that Milton once held in his own hands or browse through its recently acquired hagadah.\"