Tonight sees the start of an All Ireland' contribution to Mastermind with contenders from Rathdrum, Rathmines, Dun Laog haire, Stillorgan, Londonderry, Whitehead, Belfast and Carnckfergus... The first group are from the Irish Republic and for this, and the Northern Ireland group, the historic Trinity College in Dublin is providing the setting. The contenders are: Mary Grogan (librarian): Ballet in Britain 1900-1960 Con Cashman (farmer): Agriculture Beatrice Syms (art teacher): The 'Dragon' books of Anne McCaffrey John Egan (transport supervisor): The Life and Works of James Joyce