igo The Organisation of Matter. [April, 
of centrifugal impact, and a loss of repulsive energy as 
motions become parallel and attractive. 
Yet even in the most condensed spheres of space a large 
quantity of centrifugal force continues to exist, resulting 
from the original mass motions of atoms, and constituting 
the individual or the temperature motions of chemical 
molecules. This individual energy is most free and declared 
in the gaseous form of matter. In the gas harmony of 
motion is confined to the interior and the cosmical relations 
of the molecules. In their heat motions, as unit masses, 
they retain the individuality and irregularity of motion of 
the original ether. This energy is centrifugal. It yields 
impaCt force through their incessant collisions, by which 
they are driven back in straight lines in every conceivable 
direction. 
The molecules of the atmospheres of the planets are only 
partly free in their motions. They must conform to all the 
regular motions of the planet. Their irregular motions are 
only the excess of motive force over these regular motions. 
They are also subject to the condensing force of inward 
attraction and outward pressure, thus increasing, through 
contiguity, the attractive energy of the particles of the gas 
upon each other. Thus the same influence is brought into 
aCtion that aCted upon the original ether. Attractive force 
tends to produce curved lines of motion in the gas. A loss 
of temperature, as before, decreases the centrifugal energy 
and increases the centripetal, until, finally, the curves be- 
come closed, and a new aggregation of matter results. The 
centrifugal heat vigour of the gas becomes centripetal, motion 
in straight lines becomes motion around centres of attrac- 
tion, and the liquid form of matter replaces the gaseous. A 
new specialisation of matter has taken place, and the centri- 
fugal energy of nature is still further replaced by the 
centripetal, through the increased harmony in motive direc- 
tion. The free motions of the gas particles have become 
converted into the normal organising motions of the liquid. 
But the impacting energy of gaseous molecules is also 
reduced by attraction in another mode. We have so far 
considered the attracting energies as aCting from one side 
only. In irregular masses it thus aCts from the side of 
greatest condensation. In regular masses it would aCt 
equally from both sides. The tendency there would not be 
to produce curved lines of motion, but to accelerate the 
motion of approaching, to diminish that of receding, par- 
ticles. In short, vibration would result. Such vibratory 
motions are probably of frequent occurrence in gases, and 
