Los Angeles, June 19. James J. Jeffries, who will refeice the Bum®-Bquires match In San Francisco July 4, will leave for the North today, when he will Instruct each fighter as to the rules. Jeffrie® Is of the opinion that the battle will be a hard one, and w«l be no cinch for either man. He was asked If he would light Bquires 1/ the latter won.That Is up to the American people, said he. *lf they think Sauim can give me a good, battle, and /n«i*t that I re-enter the ring, I will fight the Australian.Bhould Bums win, ‘‘Jeff’ aald henOuld b« willing to meet him. providedBums whlpe the present crop or heavyweights. .....................