“These men and I have one thing in common. We are inhabitants not of earth, but of ether; as they have themselves told you, we are dwellers in space. But they are not, as they would have you think, a fair sample of the race which inhabits the ether, for although very many as compared with the inhabitants of earth, they are very few in comparison of those who hold with me.” “How is it possible,” said I, “that you and they, although dwellers in space, or inhabitants of the ether, can assume as you do the form of men, and at least in some measure their nature?” “I cannot,” he replied, “unfold the matter to you in full detail, for you have not the faculties needful to enable you so to apprehend it; but if you will attend I will try to show you by analogies how it is possible for us to pass from our world to yours. But sit down,” he said; “you will be weary, for I have much to say, and there is no time to lose.” Hereupon he sat down, having first indicated to us with a gracious air where we were to sit. We both sat in front of him, but each one a little to one side. Then he began. “The material,” he said, “of your world and of such worlds as yours is limited. The material of our world envelops and pervades it all, and extends to immeasurable distances, as I believe to infinity, but the knowledge of infinity is reserved to the Infinite One Himself. “The material of our world is the basis of the material of yours. The latter is made out of the former by a simple process of agglomeration. All the material of worlds like yours is resolvable ultimately into extremely minute particles, each of which is just a little twist of the ether. You may compare these particles to knots that you make upon a cord. Just as the parts of the cord in the knot act upon one another in a way in which they could not act if they remained in one continuous line, so the knotted or twisted ether becomes capable of a great variety of interactions which are not possible to it in its original state, and as the knots increase in complexity these possible interactions are multiplied. The motion by which the first agglomeration of ether is formed generates the various processes which are known to you as heat, magnetism, electricity, and the different chemical affinities, and so the matter of your world is built up. The bodies of the dwellers in ether are composed of ether in the simple state, and by a process which is simple enough although not fully explicable to you, we can transform them into the material of which your bodies are made and retransform them again.