"Ah, indeed!" said he; "it is all very well to go to the moon, but how to get back again?" His two interlocutors looked surprised. One would have thought that this possibility now occurred to them for the first time. "What do you mean by that, Nicholl?" asked Barbicane gravely. "To ask for means to leave a country," added Michel, "when we have not yet arrived there, seems to me rather inopportune." "I do not say that, wishing to draw back," replied Nicholl; "but I repeat my question, and I ask, 'How shall we return?'" "I know nothing about it," answered Barbicane. "And I," said Michel, "if I had known how to return, I would never have started." Illustration: "I COULD HAVE VENTURED OUT ON THE TOP OF THE PROJECTILE." "There's an answer!" cried Nicholl. "I quite approve of Michel's words," said Barbicane; "and add, that the question has no real interest. Later, when we think it advisable to return, we will take counsel together. If the Columbiad is not there, the projectile will be." "That is a step certainly. A ball without a gun!" "The gun," replied Barbicane, "can be manufactured. The powder can be made. Neither metals, saltpetre, nor coal can fail in the depths of the moon, and we need only go 8000 leagues in order to fall upon the terrestrial globe by virtue of the mere laws of weight." "Enough," said Michel with animation. "Let it be no longer a question of returning: we have already entertained it too long. As to communicating with our former earthly colleagues, that will not be difficult." "And how?" "By means of meteors launched by lunar volcanos." "Well thought of, Michel," said Barbicane in a convinced tone of voice. "Laplace has calculated that a force five times greater than that of our gun would suffice to send a meteor from the moon to the earth, and there is not one volcano which has not a greater power of propulsion than that." "Hurrah!" exclaimed Michel; "these meteors are handy postmen, and cost nothing. And how we shall be able to laugh at the post-office administration. But now I think of it—" "What do you think of?" "A capital idea. Why did we not fasten a thread to our projectile, and we could have exchanged telegrams with the earth?" "The deuce!" answered Nicholl. "Do you consider the weight of a thread 250,000 miles long nothing?" "As nothing. They could have trebled the Columbiad's charge; they could have quadrupled or quintupled it!" exclaimed Michel, with whom the verb took a higher intonation each time. "There is but one little objection to make to your proposition," replied Barbicane, "which is that, during the rotary motion of the globe, our thread would have wound itself round it like a chain on a capstan, and that it would inevitably have brought us to the ground."