"His calculations covered a large sheet before he had finished. At last he underscored three intricate combinations of letters and figures and carried the answers to his private radio apparatus. This operated on a wave length far outside the range of all others and insured him against interference. With it he was able to speak at any time with his assistants in Washington or Boston or with both at once. He threw the switch that sent his call into the air. An answer came instantly, and Drayle begin to talk to his distant lieutenants. * * * * * "'We've been interrupted, gentlemen,' he said, 'but I think we may continue now. We'll reassemble in the Boston laboratory. Have you arranged the elements? The coefficients are....' And he gave a succession of decimals. "A voice replied that all was ready. Drayle said 'Excellent,' went back to his invention and twisted a black knob on the board before him. "With this trifling movement all hell seemed to crash about us. The ghastly cacophony that I had experienced in the same room some months previously was as nothing. These stupendous waves of sound pounded us until it seemed as if we must disintegrate beneath them. Wails and screams engulfed us. Mrs. Drayle dropped to her knees beside her husband. The doctor seized my arm and I saw the knuckles of his hand turn white with the pressure of his grip, yet I felt nothing but the awful vibrations that drummed like riveting machines upon and through my nerves and body. It was not an attack upon the ears alone; it crashed upon the heart, beat upon the chest so that breathing seemed impossible. My brain throbbed under the terrific pulsations. For a while I imagined the human system could not endure the ordeal and that all of us must be annihilated. "Except for his slow turning of the dials Drayle was motionless before the machine. Below the bandage about his forehead I could see his features drawn with anxiety. He had wagered a human life to test his theory and I think the enormity of it had not struck him until that moment. "What I knew and hoped enabled me to imagine what was taking place in the Boston laboratory. I seemed to see man's elementary dust and vapors whirled from great containers upward into a stratum of shimmering air and gradually assume the outlines of a human form that became first opaque, then solid, and then a sentient being. At the same instant I was conscious that the appalling pandemonium had ceased and that the voice of Drayle's Boston assistant was on the radio. * * * * * "'Congratulations, Chief! His reassemblage is perfect. There's not a flaw anywhere.' "'Splendid,' Drayle answered. 'Bring him here by plane right away; his wife is worried about him.' "Then Drayle turned to me.