abdomen. It lived, however, and I laid it aside. It was some years later that I happened to notice it again. It had not given birth to any young, but I was amazed to note that it had apparently grown no older: it seemed precisely in the same state of growth in which I had left it.

"From that I built up. I re-examined the guinea-pig, and observed it carefully. I need not detail my studies. But in the end I found that my 'mistake' had in reality been a momentous discovery. I found that I had only to close certain organs, to re-arrange certain ducts, and to open certain dormant organs, and, mirabile dictu, the whole process of reproduction was changed.

"You have heard, of course, that our bodies are continually changing, hour by hour, minute by minute, so that every few years we have been literally reborn. Some such principle as this seems to operate in reproduction, except that, instead of the old body being replaced by the new, and in its form, approximately, the new body is created apart from it. It is the creation of children that causes us to die, it would seem, because if this activity is, so to speak, dammed up or turned aside into new channels, the reproduction operates on the old body, renewing it continually. It is very obscure and very absurd, is it not? But the most absurd part of it is that it is true. Whatever the true explanation may be, the fact remains that the operation can be done, that it actually prolongs life indefinitely, and that I alone know the secret."

Sir John told me a very great deal more, but, after all, I think it amounted to little more than this. It would be impossible for me to express the great hold his discovery took upon my mind the moment he recounted it. From the very first, under the spell of his personality, I believed, and I knew he was speaking the truth. And it opened up before me new vistas. I began to see myself become suddenly eternal, never again to know the fear of death. I could see myself storing up, century after century, an amplitude of wisdom and experience that would make me truly a god.

"Sir John!" I cried, long before he was finished. "You must perform that operation on me!"

"But, Dennell, you are too hasty. You must not put yourself so rashly into my hands."

"You have perfected the operation, haven't you?"

"That is true," he said.

"You must try it out on somebody, must you not?"

"Yes, of course. And yet—somehow, Dennell, I am afraid. I cannot help feeling that man is not yet prepared for such a vast thing. There are sacrifices. One must give up love and all sensual pleasure. This operation not only takes away the mere fact of reproduction, but it deprives one of all the things that go with sex, all love, all sense of beauty, all feeling for poetry and the arts. It leaves only the few emotions, selfish emotions, that are necessary to self-preservation. Do you not see? One becomes an intellect, nothing more—a cold apotheosis of reason. And I, for one, cannot face such a thing calmly."

"But, Sir John, like many fears, it is largely horrible in the foresight. After you have changed your nature you cannot regret it. What you are would be as horrible an idea to you afterwards as the thought of what you will be seems now."

"True, true. I know it. But it is hard to face, nevertheless."

"I am not afraid to face it."

"You do not understand it, Dennell, I am afraid. And I wonder whether you or I or any of us on this earth are ready for such a step. After all, to make a race deathless, one should be sure it is a perfect race."

"Sir John," I said, "it is not you who have to face this, nor any one else in the world till you are ready. But I am firmly resolved, and I demand it of you as my friend."

Well, we argued much further, but in the end I won. Sir John promised to perform the operation three days later.

... But do you perceive now what I had forgotten during all that discussion, the one thing I had thought I could never forget so long as I lived, not