1883.] Birth and Evolution of the Solar System . 145 
the opening for an “ Anglo-Saxon ” community there be- 
comes less and less. Australia may be devoutly thankful 
that her soil is free from the African negro, — a worse scourge 
than the rabbit, and for the very same reason. 
II. THE BIRTH AND EVOLUTION OF THE 
SOLAR SYSTEM. 
Translated from pages 113 to 132 of “Gedanken” 
(1857, Philadelphia, published by Thomas). 
By 0 . Reichenbach. 
(Continued from page 70.) 
j@p 
YjT^N the analysis of bodily proportions which result from 
IjL the first becoming and motion I have pointed out how 
^ excentricity of the equatorial plane is derived, and 
how it becomes a condition for unequal velocity of the sides 
converted to and averted from the attracting body, and for 
a process of condensation and dissolution. The planetary 
mass, unrolling with tremendous power, here projects matter 
to 77*3 r distance from the receding sun, and sends it to the 
opposite side by centrifugal force, where it is not repulsed, 
but re-attraCted by the sun. Matter on the side averted 
from the sun does not extend to the distance of 680 2 r, but, 
under the recalling influence of a mass 680 times greater, 
only to — ■ 
68o 2 ; 
^680 
>=17,680 r. 
We have now limits of the planetary mass 77^3 r and 
17,680 r solar distance ; we have to find the point of gravi- 
tation, the real mean distance to which the mass rebounded. 
At the beginning of motion the measure was R. The re- 
quired distance is the mean proportional of the forces 
opposed in mass and motion : — 
— — = — and ^680 = 26 -L : : 26=-i72'R 
v 68o 8 ' 8 8 ' 8 
172 R = 1169*6 r distance, 
