A Challenge

When Dan O'Leary walked 1,000 miles in 1,000 hours, though physicians advised him that no human constitution could stand it, he was something of a national hero. That was many years ago; pedestrian prodigies have dwindled in popularity. Last week Mr. O'Leary challenged " any man in the world " to walk 500 miles for any side bet of from $1,000 to $5,000. He is 82. He figures he has covered over 125,000 miles in walking contests.