In those long-ago ages the Moon was a much more fertile garden than now. Luxury and refinement were enjoyed by the favored sons of that period, and no one dreamed of the horrible fate that was to sweep practically the whole race into the regions of death. My intelligent informer used excessive language in trying to picture the unequaled catastrophe that put an end to the old era. My interest was unbounded, and with awed breath I continued listening as he described the cause of this great and terrible cataclysm. "It all occurred about five thousand years ago," he said. "The Moon was shaken by subterraneous rumblings, followed by fiery ejections, covering a period of nearly one and one-half wagon-wheel revolutions. Whole cities were ruined, fertile valleys covered and human life was almost annihilated." I knew what my informant meant by "one and one-half wagon-wheel revolutions." This would be a period of about forty days and nights of earthly time. Do you wonder that my mind flew back to the forty days and nights of rain that destroyed, at one time, on our Earth, the whole human family, except the few who were saved in the ark? "What are the evidences of this horrible world-ending?" I asked. "They are on every hand. Have you not yet seen the vast craters, the mountains of barren cinder, the stumps of immense pillars, partly excavated? All this, and very much more, silently unfolds a tale of horror that can be faintly pictured only by the imagination. Think of a holocaust so terrible that one hundred million human creatures are thereby swept into death in the narrow compass of forty days! The records that have been brought down to us by the few survivors indicate the continual wails of horror rending the sky while the volcanic disturbances continued. Thousands and millions ran from place to place to find shelter from the storm of fire. At one place the surface would open and at another the lava would run. Fate, with a merciless hand, was dragging each one into one or another of the inevitable pits." "How many were saved?" I asked with deepening interest. "Parts of only eight families aggregating nineteen human beings." "And how many people are on the Moon now?" "Almost forty million." "How do you account for this slow growth?" I asked after I had explained that on our globe a much larger number of inhabitants sprang from a smaller number than nineteen in a shorter period of time. This allusion cost me much explanation, and, after I had selfishly brushed his rising questions aside, I learned that large companies of the Moonites had been swept into death by frequent volcanic outbursts all along the line of the centuries.