Oxford, Harvard and Yale universities will be among 10 institutions visiting Bates March 11-13 for an international tournament hosted by the college's Brooks Quimby Debate Council. As part of the gathering, a trio of Bates debaters will square off against three members of the Oxford team, on a topic to be announced, at 8 p.m. Thursday, March 11, in Skelton Lounge, Chase Hall, 56 Campus Avenue.