Once leaders of opposing parties, Bob Dole and Bill Clinton will continue their unlikely partnership for nonpartisan government. Dole will speak at the first official public event of the Clinton School for Public Service. The Kansas Republican beaten by Clinton in the 1996 presidential election will be the inaugural speaker in a series of seminars sponsored by the new University of Arkansas school. An announcement today from the school said Dole, the former Senate majority leader, will present a lecture titled "Public Service in the New Century" on September 18th. The seminar series will begin at the Statehouse Convention Center. Former Senator David Pryor, dean of the school, said the school`s building an old train station being renovated near the Clinton Library isn`t ready yet for classes and seminars. A reception for Dole will be held at the building, however.