Chase. ] 104 [July 20, 
centripetal action and reaction would tend to produce a belt of ‘‘ constant 
volume,’’ with an inner limit at 1,4232W from the equatorial surface, or 
.5768WU (= .2884 7) from the nucleal centre. The consequent thermody- 
namic undulations, the vés viva of central fali, the vertical collisions at 
2 7, and Ennis’s centripetal momentum, would all be simultaneously 
operative, and the present evidence of their past activity is unmistakable. 
For if we designate the primitive radius (2 U;) by a; the thermodynamic 
1 
ratio (.2884) by j, ; the v7s viva ratio by 4; the collision ratio by 3; the 
Ennis, or momentum ratio (1 11.656854) by |, ; secular perihelion, mean 
perihelion, mean, mean aphelion and secular aphelion respectively, by sub- 
script 1,2,3,4,5, We find the following primary accordances : 
a =2, 60.939 
2a 40.626 
ha 30.470 Ww, 30.470 
1 
ate 17.575 ~~ 17.688 
sil 
ae 5.228 Y, 5.208 
The inner limit of the Neptune-Uranian belt, the controlling centre of 
planetary mass, and, as we shall presently see, the nebular surfaces which 
were to determine subsequent planetary aggregations, were thus marked 
out, within less than one per cent., ‘‘in the beginning.” 
The order of time in which these dissociating influences would be com- 
pleted, would be = 4, 2; .. Second and third dissociations present the 
following agreements : 
z =a 11.717 
3 3 20.318 6, 20.044 
+ 2 a 8.788 h, 8.734 
i si a 5.069 YW, 4.978 
7 z a 2.614 Ast. 
: a Seer: 1.743 ae 1.736 
= . i a 1.508 S's 1.524 
ae 5 a 1.005 @; 1.000 
- 3: a a 154 Q, 749 
fee : = a .448 By 455 
Second dissociations, therefore, approximately fixed cardinal positions of 
