LAST term Miss Rhoda Power broadcast a course of talks called 'Boys and Girls of the Middle Ages,' in which she gave a series of vivid pictures of everyday life in other times. This term she continues into a rather later age, beginning with the story of a. schoolboy going to St. Paul's School shortly after its foundalion by Colet, Dean of St. Paul's, one of the pioneers in England of the Now Learning, and the friend of Erasmus and Sir Thomas More.