Now that his vocal organs were temporarily plugged, the child waved a demanding arm in the direction of the main exhibit to indicate a desire for the resumption of the narrative. But the ancient was not anxious to disturb so soon the benign and acceptable silence. In fact it was not until he observed the sergeant's look of inquiry that he began once more. "That box," he said slowly, "is both a monument and a milestone on the road to mankind's progress in mechanical invention. It marks the point beyond which Drayle's contemporaries believed it was unsafe to go: for they felt that inventions such as his would add to the complexities of life, and that if a halt were not made our own machines would ultimately destroy us. "I did not, still do not, believe it. And I know Drayle's spirit broke when the authorities sealed his last work in that box and released him upon parole to abandon his experiments." As the speaker sighed in regretful reminiscence, the sergeant glanced at his men. Apparently all was well: the only visible menace lolled within easy arm's reach, swinging his short legs and sucking noisily on his candy. Nevertheless the non-com shifted to a slightly better tactical position as he awaited the continuance of the tale. * * * * * "Christopher Drayle," said the elderly gentleman, "was the greatest man I have ever known, as well as the finest. Forty years or more ago we were close friends. Our homes on Long Island adjoined and I handled most of his legal affairs. He was about forty-five or six then, but already famous. "His rediscovery of the ancient process of tempering copper had made him one of the wealthiest men in the land and enabled him to devote his time to scientific research. Electricity and chemistry were his specialties, and at the period of which I speak he was deeply engrossed in problems of radio transmission. "But he had many interests and not infrequently visited our local country club for an afternoon of golf. Sometimes I played around the course with him and afterward, over a drink, we would talk. His favorite topic was the contribution of science to human welfare. And even though I could not always follow him when he grew enthusiastic about some new theory I was always puzzled. "It was at such a time, when we had been discussing the new and first successful attempt to send moving pictures by radio, that I mentioned the prophecy of Jackson Gee. Gee was the writer of fantastic, pseudo-scientific tales who had said: 'We shall soon be able to resolve human beings into their constituent elements, transmit them by radio to any desired point and reassemble them at the other end. We shall do this by means of vibrations. We are just beginning to learn that vibrations are the key to the fundamental process of all life.' * * * * *