He drew François Arago away to a distance from us. We could judge, from the spot where we stood, of the animated discussion that ensued by the vivacity of their gestures. M. Villemain joined the two speakers and seemed to be taking Cuvier to task. Several other Academicians, whom I did not know by sight, and, perhaps, not even by name, surrounded Arago, and, contrary to M. Villemain, seemed to be insisting with Cuvier that Arago should speak. After a quarter of an hour's discussion, it was settled that Arago should speak. Now, this decision had been arrived at by a majority of votes, so to speak, and it would have been impossible for the famous astronomer to withstand the wishes of the majority of his confrères, who all loudly declared that they would regard his silence as contentious. He passed by us as he went to his place. "Well, you are going to speak after all?" Étienne said to him. "Yes, but set your mind at rest," he replied; "I assure you, by the end of my speech, they will think it would have been as well if I had not opened my mouth." "What the dickens can he find to say about Fresnel?" I asked Étienne. It was in praise of Fresnel that he was to speak. "Oh!" replied Étienne, "I am not alarmed on that score. If it were about the Grand Turk, he would manage to squeeze in what he wanted to say." And Arago, taking as his subject the clever engineer of bridges and embankments, the learned physician, the severe examiner of the École polytechnique, the famous inventor of lenticular lighthouses, actually found means of throwing fiery allusions upon the burning political situation, which were received by the assembly with frantic applause. Cuvier and the other Academicians who had insisted that Arago should speak were right; only, they were right according to our point of view, not from their own. Arago's lecture was a splendid triumph. Indeed, it is impossible for any speaker to be more picturesque, grander or more striking than François Arago in the tribune when carried away by genuine passion; he would throw up his head and shake back his locks--locks dark in colour in 1830, grey in 1848. Whether he were attacking the violators of the Royalist charter or defending the Republican constitution, he was ever the same eloquent orator, ever the inspired poet, the same convinced legislator. For Arago is not only science, he is conscience itself; he is not only genius, but the soul of honour. Let us state this in passing; though I know that plenty of others will say the same, yet I should like to be among their number.