And you must further understand that this power and this regulation of vision are natural in those worlds, and not supernatural. In order to conceive of the faculties possessed by these ultra-terrestrial beings, reflect for a moment upon the eyes of some insects--of those, for instance, which have the power to draw in, to lengthen out, or to flatten the crystalline lens so as to make it magnify in different degrees; or of those which can concentrate on the field of view a multitude of eyes in order to bring them to bear upon the desired object. QUÆRENS. Yes, I can imagine it to be possible. Then you are able to see the Earth, and to distinguish from above even the towns and villages of our lower world? [Sidenote: Lumen on a star world.] LUMEN. Let me proceed with my description. I found myself then upon the ring-shaped world, the size of which I told you is great enough to make two hundred worlds like yours. The mountain on which I stood was covered with trees woven into arboreal palaces. These fairy-like chateaux seemed to me either to grow naturally, or else to be produced by a skilful arrangement of branches and of tall flowering plants. The town, where I entered it, was thickly peopled, and on the summit of the mountain I noticed a group of old men, twenty or thirty in number, who were looking with the most fixed and anxious attention at a beautiful star in the southern constellation of the Altar on the confines of the Milky Way. They did not observe my arrival amongst them, so absorbed were they in observing and examining this star, or perhaps one of the worlds belonging to its system. [Sidenote: Lumen learns the language of spirits.] As for myself, I became aware, on arriving in this atmosphere, that I was clothed in a body resembling that of its inhabitants, and to my still greater surprise I heard these old men speaking of the Earth--yes, of the Earth in that universal spirit-language which all beings comprehend from the seraphim to the trees of the forest. And not only were they talking about the Earth, but about France. "What can be the meaning of these legal massacres?" they said. "Is it possible that brute force reigns supreme there? Will civil war decimate these people, and will rivers of blood run in this capital, at one time so magnificent and so gay?" I could not follow the drift of this speech, I who had just come from the Earth with the swiftness of thought, and who but yesterday had breathed in the heart of this tranquil and peaceful capital. I joined the group, fixing my eyes, as they did, on the beautiful star, and I tried at the same time to understand what they were talking about. Presently I saw to the left of the star a pale-blue sphere--that was the Earth. [Sidenote: The Solar System in the heavens.]