see that he burned for my departure, so that he might get busy with his batteries and pieces of tissue, hot on the track of discoveries that never yet had presented themselves to the mind of man as coming within the horizon of possibility. My last sentence may have led the reader to guess that I am indeed speaking of none other than that recluse and mysterious physicist Sir James Horton, with whose death a hundred half-hewn avenues into the dark forest from which life comes must wait completion till another pioneer as bold as he takes up the axe which hitherto none but himself has been able to wield. Probably there was never a man to whom humanity owed more, and of whom humanity knew less. He seemed utterly independent of the race to whom (though indeed with no service of love) he devoted himself: for years he lived aloof and apart in his house at the end of the Terrace. Men and women were to him like fossils to the geologist, things to be tapped and hammered and dissected and studied with a view not only to the reconstruction of past ages, but to construction in the future. It is known, for instance, that he made an artificial being formed of the tissue, still living, of animals lately killed, with the brain of an ape and the heart of a bullock, and a sheep’s thyroid, and so forth. Of that I can give no first-hand account; Horton, it is true, told me something about it, and in his will directed that certain memoranda on the subject should on his death be sent to me. But on the bulky envelope there is the direction, “Not to be opened till January, 1925.” He spoke with some reserve and, so I think, with slight horror at the strange things which had happened on the completion of this creature. It evidently made him uncomfortable to talk about it, and for that reason I fancy he put what was then a rather remote date to the day when his record should reach my eye. Finally, in these preliminaries, for the last five years before the war, he had scarcely entered, for the sake of companionship, any house other than his own and mine. Ours was a friendship dating from school-days, which he had never suffered to drop entirely, but I doubt if in those years he spoke except on matters of business to half a dozen other people. He had already retired from surgical practice in which his skill was unapproached, and most completely now did he avoid the slightest intercourse with his colleagues, whom he regarded as ignorant pedants without courage or the rudiments of knowledge. Now and then he would write an epoch-making little monograph, which he flung to them like a bone to a starving dog, but for the most part, utterly absorbed in his own investigations, he left them to grope along unaided. He frankly told me that he enjoyed talking to me about such subjects, since I was utterly unacquainted with them. It clarified his mind to be obliged to put his theories and guesses and confirmations with such simplicity that anyone could understand them.