Vorsters speeches all emphasised resistance and continuity Mr. Bothas emphasise change. Since he took office in the throes of the Information Department scandal he has put forward a number of notions which are not obviously popular with his constituents. including trade union rights for black workers. even migrant ones. and abolition of the ban on mixed marriages and the socalled Immorality Act. He now proposes a conference of the racesthe national convention. in fact. for which Opposition groups and churchmen have in the past campaigned. Its purpose is to strike a new bargain between the races to replace that struck by the whites alone.