"[...] Mr. McFarland again held up his hand for silence. "You know, in these days of keen competition, manufacturers of motors for airplanes and automobiles are bending every effort to produce steel that will stand severe tests, that will endure strains and over-drive, and will last, last!" Johnny nodded. "We have such a steel as that, a marvelous steel. The man who discovered it is a genius-one of our mechanics. Unfortunately, after he had produced a few bars of this steel, and before he confided the formula to any other person, or had discovered ways of working it, he broke down from the excitement and over-strain. His mind became a blank-a complete blank." He paused to stare at the wall, as if in a dream. "And there," he went on, "are the bars of steel, some only eight inches[...]."