that enables some prizefighters to go the distance — twenty, thirty, forty rounds, say,” Dick concurred. “Right now, in San Francisco, there are several hundred youngsters dreaming of success in the ring. I’ve watched them trying out. All look good, fine-bodied, healthy, fit as fiddles, and young. And their spirits are most willing. And not one in ten of them can last ten rounds. I don’t mean they get knocked out. I mean they blow up. Their muscles and their hearts are not made out of first- grade fiber. They simply are not made to move at high speed and tension for ten rounds. And some of them blow up in four or five rounds. And not one in forty can go the twenty-round route, give and take, hammer and tongs, one minute of rest to three of fight, for a full hour of fighting. And the lad who can last forty rounds is one in ten