The feelings of some were deeply stirred when they learned that they were now crossing the lower end of Palestine, and that the scenes of so many incidents in the history of Abraham, Moses, and Joshua lay buried beneath the blue water, whose almost motionless surface was marked with a broad trail of foaming bubbles in the wake of the immense vessel. Cosmo greatly regretted the absence of the submersible when they were picking their way over this perilous region, but they encountered no real difficulty, and at length found, by celestial observations, that they were beyond all dangers and safely arrived over the deeply submerged desert. They kept on for several days toward the rising sun, and then Captain Arms announced that the observations showed that they were over the site of Babylon. This happened just at the time of the midday dinner, and over the dessert Cosmo seized the opportunity to make a little speech, which could be heard by all in the saloon. "We are now arrived," he said, "over the very spot where the descendants of Noah are said to have erected a tower, known as the Tower of Babel, and which they intended to build so high that it would afford a secure refuge in case there should be another deluge. "How vain were such expectations, if they were ever entertained, is sufficiently shown by the fact that, at this moment, the water rolls more than three thousand feet deep over the place where they put their tower, and before the present deluge is over it will be thirty thousand feet deep. "More than half a mile beneath our feet lie the broad plains of Chaldea, where tradition asserts that the study of astronomy began. It was Berosus, a Chaldean, who predicted that there would come a second deluge. "It occurs to me, since seeing the astounding spectacle disclosed by the falling apart of the Sphinx, that these people may have had an infinitely more profound knowledge of the secrets of the heavens than tradition has assigned to them. "On the breast of the statue in the Sphinx was the figure of a crowned man, encircled by a huge ring, and having behind him the form of a boat containing two other human figures. The boat was represented as floating in a flood of waters. "Now, this corresponds exactly with figures that have been found among the most ancient ruins in Chaldea. I regard that ring as symbolical of a nebula enveloping the earth, and I think that the second deluge, which we have lived to see, was foretold here thousands of years ago." "Who foretold it first, then, the people who placed the statue in the Sphinx, or these astronomers of Chaldea?" asked Professor Abel Able. "I believe," Cosmo replied, "that the knowledge originated here, beneath us, and that it was afterward conveyed to the Egyptians, who embodied it in their great symbolical god."