When Clemens returned to America with his family, after lecturing round the world, I again saw him in New York, where I so often saw him while he was shaping himself for that heroic enterprise. He would come to me, and talk sorrowfully over his financial ruin, and picture it to himself as the stuff of some unhappy dream, which, after long prosperity, had culminated the wrong way. It was very melancholy, very touching, but the sorrow to which he had come home from his long journey had not that forlorn bewilderment in it. He was looking wonderfully well, and when I wanted the name of his elixir, he said it was plasmon. He was apt, for a man who had put faith so decidedly away from him, to take it back and pin it to some superstition, usually of a hygienic sort. Once, when he was well on in years, he came to New York without glasses, and announced that he and all his family, so astigmatic and myopic and old-sighted, had, so to speak, burned their spectacles behind them upon the instruction of some sage who had found out that they were a delusion. The next time he came he wore spectacles freely, almost ostentatiously, and I heard from others that the whole Clemens family had been near losing their eyesight by the miracle worked in their behalf. Now, I was not surprised to learn that “the damned human race” was to be saved by plasmon, if anything, and that my first duty was to visit the plasmon agency with him, and procure enough plasmon to secure my family against the ills it was heir to for evermore. I did not immediately understand that plasmon was one of the investments which he had made from “the substance of things hoped for,” and in the destiny of a disastrous disappointment. But after paying off the creditors of his late publishing firm, he had to do something with his money, and it was not his fault if he did not make a fortune out of plasmon.