6g 
1883.] 
of the Solar System . 
planetary body of 1-680 mass of equal density through 
1,400,000 V( y»68 o) = i ^.oooVgg = l6 feet . 
y68o 8*8 x y(8*8) 
But the planetary mass did not have this density at the 
time; the solar mass could, notwithstanding its 68o J times 
inferior density, produce a velocity of 54,000 feet next to its 
surface, for its centre of gravity was at a very little different 
distance then, as now, from the point of motion. The 
planetary mass also was 680 3 times less dense ; its radius 
was not i-8*8 of the present, but of the then existing solar 
radius ; it measured 77*3 of the actual solar radii. The 
velocity which this mass was able to give to a mass at its 
surface was — 
i 6o,0 ?°^ = 54,00°' — 6 200 feet 
v68o 8*8 
in a second, which is still pretty near the velocity of a point 
under the equator of the sun in the revolution round its 
axis. The time of a whole revolution then was so much 
slower as the radius was longer ; as the sun gradually at- 
tained to its present density the time of one revolution 
decreased ; the distance run through in a certain time by a 
point of the surface remained the same. 
Founding our structure on some remarkable but indefinite 
premises, we obtained conclusions which prove that the 
rotary velocity of the sun is nothing accidental, and that 
the planetary one is only altered by division of mass. We 
have gained the starting-point of the process. We shall 
consider if further deductions strengthen the probability that 
our supposition was correct. 
Which was the centrifugal force on the surface and at the 
equator of the sun ? Not as now — 
1 6 , but— , 
77*3x680 77*3 
and which at the surface of the planetary mass is— 
77*3 
f 
1 
which means it became under the equator 77*3 times greater 
than gravity. 
By the thus resulting continuous separatory thrust the 
planetary mass could not simply dissolve, but it had to 
exercise its effeCt against the sun and away from it, as the 
