Assuming that the Earth is hollow, the purpose will be in the following pages to show how and why, and the great importance to the inhabitants of the outside that it should be so. The first proposition is, therefore, a hollow Earth from causes heretofore named by centrifugal force; next, that the inside is an ocean of fresh water, with continents of land, and the outside oceans of salt water and its continents, as we have partially learned of them. That the ice belts in each frigid zone are the dividing lines between salt and fresh water. That openings at the approach to either pole are at least 1,500 miles across, and that a magnetic compass above a latitude of eighty to eighty-eight degrees will not keep its natural position at any point within such latitude, but will, in its endeavor to point the needle to the true center of motion, lift up the point in order to keep the right bearing, or show some other embarrassment or irregularity. Whoever explores at these latitudes is, instead of going in a course directly to the center of motion, unconsciously rounding a circle toward the inside. The flattened condition of the Earth at the poles goes to accommodate both the claims of being hollow and how it came to be so. We are informed that every raindrop is hollow falling through a short amount of space, and how more reasonable to suppose the Earth’s great mass to be so, revolving in an eternity of space. It is more than presumable to suppose that every planetary body in the universe is hollow, and made so by the same fixed law for all flexible bodies in revolution to become hollow. Are not the rings of Saturn thus produced? Here is a planet they tell us is seven hundred times as large as the Earth, but its density only ninety times as great. His mean diameter about 70,000 miles and compression one-tenth, so that the polar diameter is 3,500 miles less, and the equatorial 3,500 miles more than its mean, thus duplicating largely the shape and globular form of the Earth. Is it not reasonable, then, to suppose that the lack of density has allowed its revolutions to produce its series of rings, those most dense being outside? And the whole order being such, that our position allows us to look through them instead of on to an outside surface? Jupiter has the same characteristics in diameters. The mean, 85,000 miles; equatorial, 87,800; polar, 82,200, a difference of 5,600 miles, which means the same influences and same reason to make it hollow. While 1,233 times as large as the Earth, its density of substance is only 301 times as much. Here we have the two largest planets, perhaps yet in their period of development for being inhabited, in very like form relatively as the Earth.