"Why, an awfully clever girl in his sophomore class started it as an experiment, to see how it would take. She told it to some freshmen, saying explicitly that it wasn't true, and they told their friends, and so it went all over the college until last Saturday Betty got Miss Mansfield to deny it. But no one knew how it started until yesterday when Professor Hinsdale looked over a paper in which the girl had written it all up, as a study in the way rumors spread and grow. This one was so big to begin with that it couldn't grow much, though it seems, according to the paper, that some people had added to it that half the freshmen would be conditioned in math."