We have also given you the views and suppositions of able investigators that the extent of that photosphere, or volume of flame, is vast indeed. It is said that 'flame-like masses--some computed to be one hundred and fifty thousand miles in length--are piled upon and overlap each other, and sweep onward in constant agitation like mountain billows of living fire.' This, as we have told you, is the source of all fire, or heat known to us on this Earth, and to all the other planets of our solar system. The precise nature and elements of fire, we have said, we cannot fully comprehend; neither its original source, save that it emanated from the Great First Cause. The Sun is its direct source to us, and we realize it always the same; never augmenting nor diminishing. We know that it is the source of light to a vast region around, and, from the offices it performs, we cannot think less than that it is--as we have before said--an attribute of the Great Jehovah; and especially this when we consider God's own revelations as found recorded in the Bible. In describing the dimensions of the _Sun_, we have said it is 2,655,000 miles round it, or to bring this vast extent nearer our comprehension, we may state that it would require 321 Earths, the size of this, set side by side to reach around it, and vast numbers more to cover its surface, and when thus covered with worlds like this, the stratum would only be about 8,000 miles deep, while it is reasonable to estimate that _photospheric flame to be 100,000 miles in depth_. We have mentioned the "_inner globe_," estimated to be more than a million times the size of this Earth, and we have denominated it _heaven_, and this outside surrounding volume of ethereal fire we shall denominate _hell_, as we believe no other true hypothesis can be advanced. And, in assuming this, we believe ourselves sustained by the revelations of God, as well as by all we can comprehend of Nature. In order to incite our minds to know and comprehend more of Him, and become obedient to His requirements, God has shown us, by manifestations, His instrument of destruction and punishment. His prophets have also announced His threatenings against the wicked, and have told us that _fire_--the element of heat--is the instrument with which He will fulfil His threatened vengeance, and we have seen this manifested by the destruction of the "cities of the plains"--even "Sodom and Gomorrah," as also the destruction of those who offered incense upon strange altars.