Overview: This week's Mastermind comes from Perth City Hall, Tayside, where four more contestants answer questions put to them by quizmaster Magnus Magnusson. In the spotlighttonight are Ruth Burkhill , Patricia Hastings Hardy. Matthew Potter and Gavin Brown. Their specialist subjects are beekeeping, the I ife and poetry of Geoffrey Studdert Kennedy, the career of Napoleon Bonaparte , and the life and works of George Orwell.