generator of 150 A. radiations. We have there two highly technical requirements of anyone attempting to solve the secret of this cache—ability to generate the proper radiation, and the ability to understand their mathematics and build a second generator from their wave equations. "Now that we're in here, there is nothing more we can do until we can understand their printed language. Obviously, they must teach it to us. This would be the place." "You may be right," said Phyfe, "But we archeologists work with facts, not guesses. We'll know soon enough if it's true." Underwood felt content to speculate while the others worked. There was nothing else for him to do. No way out of the anteroom was apparent, but he was confident that a way to the interior would be found when the inscriptions were deciphered. He went out to the surface and walked slowly about, peering into the transparent depths with his light. What lay within this repository left by an ancient race that had obviously equaled or surpassed man in scientific attainments? Would it be some vast store of knowledge that would come to bless mankind with greater abundance? Or would it, rather, be a new Pandora's box, which would pour out upon the world new ills to add to its already staggering burden? The world had about all it could stand now, Underwood reflected. For a century, Earth's scientific production had boomed. Her factories had roared with the throb of incessant production, and the utopia of all the planners of history was gradually coming to pass. Man's capacities for production had steadily increased for five hundred years, and at last the capacities for consumption were rising equally, with correspondingly less time spent in production and greater time spent in consumption. But the utopia wasn't coming off just as the Utopians had dreamed of it. The ever present curse of enforced leisure was not respecting the new age any more than it had past ages. Men were literally being driven crazy with their super-abundance of luxury. Only a year before, the so-called Howling Craze had swept cities and nations. It was a wave of hysteria that broke out in epidemic proportions. Thousands of people within a city would be stricken at a time by insensate weeping and despair. One member of a household would be afflicted and quickly it would spread from that man to the family, and from that family it would race the length and breadth of the streets, up and down the city, until one vast cry