He had experimented with Lloyd's temper himself in the past.
He experimented with many schemes, but threw them aside one by one as flimsy.
Such incidents brought out in narration the fact that many of the men working with him had been less fortunate, particularly those who had experimented with the Roentgen X-ray, whose ravages, like those of leprosy, were responsible for the mutilation and death of at least one expert assistant.