In theorizing on the philosophy of planetary suspension Mr. Keely writes: "As regards planetary volume, we would ask in a scientific point of view--How can the immense difference of volume in the planets exist without disorganizing the harmonious action that has always characterized them? I can only answer this question properly by entering into a progressive synthesis, starting on the rotating etheric centres that were fixed by the Creator with their attractive or accumulative power. If you ask what power it is that gives to each etheric atom its inconceivable velocity of rotation, or introductory impulse, I must answer that no finite mind will ever be able to conceive what it is. The philosophy of accumulation," assimilation, Macvicar calls it, "is the only proof that such a power has been given. The area, if we can so speak of such an atom, presents to the attractive or magnetic, the elective or propulsive, all the receptive force and all the antagonistic force that characterizes a planet of the largest magnitude; consequently, as the accumulation goes on, the perfect equation remains the same. When this minute centre has once been fixed, the power to rend it from its position would necessarily have to be as great as to displace the most immense planet that exists. When this atomic neutral centre is displaced, the planet must go with it. The neutral centre carries the full load of any accumulation from the start, and remains the same, for ever balanced in the eternal space." Mr. Keely illustrates his idea of "a neutral centre" in this way:--We will imagine that, after an accumulation of a planet of any diameter--say, 20,000 miles more or less, for the size has nothing to do with the problem--there should be a displacement of all the material, with the exception of a crust 5000 miles thick, leaving an intervening void between this crust and a centre of the size of an ordinary billiard ball, it would then require a force as great to move this small central mass as it would to move the shell of 5000 miles thickness. Moreover, this small central mass would carry the load of this crust for ever, keeping it equi-distant; and there could be no opposing power, however great, that could bring them together. The imagination staggers in contemplating the immense load which bears upon this point of centre, where weight ceases. This is what we understand by a neutral centre.