The director of the observatory of Paris was naturally to be the first speaker; but what seemed to excite the greatest interest in the public was the opinion of the president of the academy of medicine on the probable effects of carbonic-oxide. The president of the geological society of France was also to make an address, and the general object of the session was to pass in review all the possible ways in which our earth might come to an end. Evidently, however, the discussion of its collision with the comet would hold the first place. [Illustration: FRIGHTENED WATCHERS. ] As we have just seen, the threatening star hung above every head; everybody could see it; it was growing larger day by day; it was approaching with an increasing velocity; it was known to be at a distance of only 17,992,000 kilometers, and that this distance would be passed over in five days. Every hour brought this menacing hand, ready to strike, 149,000 kilometers nearer. In six days anxious humanity would breathe freely—or not at all. [Illustration: A GROUP OF LISTENERS. ] CHAPTER III. Never, within the history of man, had the immense hemicycle, constructed at the end of the twentieth century, been invaded by so compact a crowd. It would have been mechanically impossible for another person to force an entrance. The amphitheater, the boxes, the tribunes, the galleries, the aisles, the stairs, the corridors, the doorways, all, to the very steps of the platform, were filled with people, sitting or standing. Among the audience were the president of the United States of Europe, the director of the French republic, the directors of the Italian and Iberian republics, the chief ambassador of India, the ambassadors of the British, German, Hungarian and Muscovite republics, the king of the Congo, the president of the committee of administrators, all the ministers, the prefect of the international exchange, the cardinal-archbishop of Paris, the director-general of telephones, the president of the council of aerial navigation and electric roads, the director of the international bureau of time, the principal astronomers, chemists, physiologists and physicians of France, a large number of state officials (formerly called deputies or senators), many celebrated writers and artists, in a word, a rarely assembled galaxy of the representatives of science, politics, commerce, industry, literature and every sphere of human activity. The platform was occupied by the president, vice-presidents, permanent secretaries and orators of the day, but they did not wear, as formerly, the green coat and chapeau or the old-fashioned sword, they were dressed simply in civil costume, and for two centuries and a half every European decoration had been suppressed; those of central Africa, on the contrary, were of the most brilliant description. [Illustration: A DOMESTICATED MONKEY. ]