A positivist attempts to formulate: so does the intermediatist, but with less rigorousness: he accepts but also denies: he may seem to accept in one respect and deny in some other respect, but no real line can be drawn between any two aspects of anything. The intermediatist accepts that which seems to correlate with something that he has accepted as a dominant. The positivist correlates with a belief. In the Dhurmsalla meteorites we have support for our expression that things entering this earth's atmosphere sometimes shine with a light that is not the light of incandescence--or so we account, or offer an expression upon, "thunderstones," or carved stones that have fallen luminously to this earth, in streaks that have looked like strokes of lightning--but we accept, also, that some things that have entered this earth's atmosphere, disintegrate with the intensity of flame and molten matter--but some things, we accept, enter this earth's atmosphere and collapse non-luminously, quite like deep-sea fishes brought to the surface of the ocean. Whatever agreement we have is an indication that somewhere aloft there is a medium denser than this earth's atmosphere. I suppose our stronghold is in that such is not popular belief-- Or the rhythm of all phenomena: Air dense at sea level upon this earth--less and less dense as one ascends--then denser and denser. A good many bothersome questions arise-- Our attitude: Here are the data: Luminous rains sometimes fall (_Nature_, March 9, 1882; _Nature_, 25-437). This is light that is not the light of incandescence, but no one can say that these occasional, or rare, rains come from this earth's externality. We simply note cold light of falling bodies. For luminous rain, snow, and dust, see Hartwig, _Aerial World_, p. 319. As to luminous clouds, we have more nearly definite observations and opinions: they mark transition between the Old Dominant and the New Dominant. We have already noted the transition in Prof. Schwedoffs theory of external origin of some hailstones--and the implications that, to a former generation, seemed so preposterous--"droll" was the word--that there are in inter-planetary regions volumes of water--whether they have fishes and frogs in them or not. Now our acceptance is that clouds sometimes come from external regions, having had origin from super-geographical lakes and oceans that we shall not attempt to chart, just at present--only suggesting to enterprising aviators--and we note that we put it all up to them, and show no inclination to go Columbusing on our own account--that they take bathing suits, or, rather, deep-sea diving-suits along. So then that some clouds come from inter-planetary oceans--of the Super-Sargasso Sea--if we still accept the Super-Sargasso Sea--and shine, upon entering this earth's atmosphere. In _Himmel und Erde_, February, 1889--a phenomenon of transition of thirty years ago--Herr O. Jesse, in his observations upon