i88i.j 
The Evolution of the Spheres. 
125 
for the motions of its particles in one direction are all 
retained, while those in the opposite direction are gradually 
lost. This process must be most efficacious at the centre, 
its vigour decreasing outwardly. It may be, then, that at 
the centres of many of the spheres all reverse motion has 
been lost, and only the mass motion retained. In such a 
case an absolute zero of temperature would exist at the 
centre. At the surface of the spheres the greatest quantity 
of reverse motion would exist, the atmosphere being its final 
recipient in its outward flow, and also yielding it less rapidly 
from the decrease in repulsive energy. 
In this way the motions of the great bodies of space may 
have originated. Minor aggregations of accordant motions 
combined into great aggregations. Masses discordant in 
motion repelled each other, leaving a region of disintegrated 
matter between them. Motion of these masses through 
space increased in rapidity as reverse motion was repelled. 
As motions became more and more parallel, condensation 
increased. This, again, caused a rapid increase in the vigour 
of attractive energy, and also a more vigorous repulsion of 
the reverse motions, so that at once there arose a greater 
rapidity of mass motion, a more vigorous gravitation, and a 
more rapid reduction of temperature. 
The mass as yet, however, would be cylindrical, not 
globular. Its attractions would converge to an axis, with 
only a somewhat stronger vigour at the central point of this 
axis. There would, however, be a growing excess of vigour 
of the centre over the axis as the mass became more con- 
densed. And as minor aggregations into atoms and mole- 
cules arose in the mass, the attractive vigour of the internal 
motions of these would converge to the centre. In conse- 
quence the central must constantly grow in vigour over the 
axial attraction, and the cylinder change more and more 
into the globular figure. And now the inward curve of 
accordant motions would be directed towards the centre, 
with a tendency to rotate around it. But such motions 
might balance each other in every accordant direction, so 
that the tendency to rotate in any direction around the 
centre would be opposed by the opposite tendency. Yet, 
although the temperature motions in the mass as a whole 
might be balanced in direction, it is quite probable that they 
would not be homogeneous in distribution, and that positive 
movements might arise, to be balanced elsewhere by reverse 
positive movements. Such a wind of positive motion arising 
near the centre, in the region of strongest attraction, would 
have a more vigorous preservative influence than more 
