Mercurys to Receive A Royal WelcomeEDMONTON — More than 70,-MO person* Art expected to linethe pared* route of Edmonton Mercury* triumphal homecomingThursday, Art Potter, chairman of iithe welcome-home committee, said a Tuesday.aSchool children will have a halfholiday Thursday morning to Join p in the celebrations. fThe committee said the welcome £ home parade for the World Ama- i teur Hockey champions will eclipse c all other major parades for return- c ing Edmonton sport champions. ^ The Mercurys are scheduled to £ arrive by plane.