It has been said that if Eads had failed with the Jetties he would not only have destroyed his reputation, but he would have been a beggar,--though, some one added, he would still have deserved everlasting gratitude for his efforts and sacrifices. And now he had already succeeded in changing the little pass into a grand channel of commerce sufficient for the largest shipping that visited New Orleans. Yet the violent opposition and the calumnies still continued. There was a wonderful persistency in the false reports which came from bitter opponents who would not be convinced. The foolishness and ignorance of their arguments are almost incredible. But however foolish, they had to be disproved; and Eads set himself patiently to work to point out the errors in logic and in physics; and in doing so he wrote what those who know call one of the greatest works on river hydraulics. While there were so many men's hands against Eads, it is pleasant to record that there were also many for him. It was the "Scientific American" which first suggested his name for the presidency. It advocated him as a fearless, honest, and forceful man; but the peculiar compliment in it was that this was a technical paper that upheld him. The proposal was repeated in many newspapers, but Eads had no more intention now than ever of going into politics. He knew in what line he could do most for his country, and had an ambition rather to be a supremely useful engineer than to be president. Another of his admirers was the late Emperor of Brazil, Dom Pedro II., who, after a visit to the Jetties, first tried to persuade Eads to go to Brazil to do some very important work for him, and who then, failing that, sent him a personal letter asking him to recommend an engineer. And he engaged the one whom Eads recommended.