CERTAIN HARMONIES OF THE SOLAR SYSTEM. 95 



and effects" here in question as being antecedent to the existence of selt-lummous 

 solid bodies. 



Being thus antecedent, the traces of the phenomena which have required the 

 admission of such causes and effects have, it would seem, been so far obliterated, 

 in the course of the changes which have since taken place, that the nebular hypo- 

 thesis here in question cannot now be proved ; and yet enough has even here been 

 stated, to show that it cannot be disproved. 



