312 SPECIAL RESULTS IN THE URANOLOGICAL 



Jupiter, at mean distance, 38'H (oscillates from 30"'0to46") 

 Saturn 17 '1 ( " 15'0 20) 



Uranus 3 '9 



Neptune 2 '7 



Volumes of the planets relatively to that of the Earth : 



Mercury as 1 



Venus 1 



Earth 1 



Mars 1 



Jupiter 1414 



Saturn . . . ,,735 



Uranus . . . 82 



Neptune . . 108 



16-7 

 1-05 

 1 



7-14 



1 



1 



1 



1; 



while the volume of the Sun is to that of the Earth as 

 1407124 : 1. Small alterations in the measurements of 

 the diameters increase the resulting volumes in the ratio of 

 the cubes. 



These planetary bodies, which, by their changes of place, 

 enliven and vary in an agreeable manner the aspect of the 

 starry heavens, produce on us an impression which is in each 

 case the conjoint result of the magnitudes of their disks and 

 their proximity, of the colour of their light, the scintillation 

 of some among them in particular positions, and the peculiar 

 .manner in which their different surfaces reflect the solar 

 light. Whether the intensity and quality of their light may 

 be further modified by a feeble evolution of light from their 

 own surfaces, is a problem which still remains to be 

 solved. 



4. Arrangement of the planets according to their 



