In due time comes the second impulse, which seizes upon nearly all these forty-nine bubble-atoms (leaving only enough to provide atoms for the second world), draws them back into itself and then, throwing them out again, sets up among them vortices, each of which holds within itself 2,401 bubbles (49^2).

These form the atoms of the third world.

Again after a time comes a third impulse, which in the same way seizes upon nearly all these 2,401 bubble-atoms, draws them back again into their original form, and again throws them outward once more as the atoms of the fourth world--each atom containing this time 49^{3} bubbles.

This process is repeated until the sixth of these successive impulses has built the atom of the seventh or the lowest world--that atom containing 49^{6} of the original bubbles.
This atom of the seventh world is the ultimate atom of the physical world--not any of the atoms of which chemists speak, but that ultimate out of which all their atoms are made.

We have at this stage arrived at that condition of affairs in which the vast whirling sphere contains within itself seven types of matter, all one in essence, because all built of the same kind of bubbles, but differing in their degree of density.