HIS PROGRESSIVE RELATIONS. 181 



higher at each successive stage, and that the more 

 they advance the fainter will become those differences 

 — ^physical and moral — which now characterise so 

 broadly existing varieties. 



Our last proposition, therefore, is, that as there has 

 been an obvious ascent from lower to higher in the 

 past, and as all the forces of nature, physical and 

 vital, upon which that ascent depended, are stUl in 

 fuU and harmonious operation, and evince no symptoms 

 of decay, so there wiU be a similar progressive ascen- 

 sion in the future j and that, as maSTias ever partaken 

 of this ascent, structurally and intellectually, as is 

 amply evidenced by the history of his race, so will 

 existing varieties pass away and be superseded by 

 others more nobly constructed and more divinely 

 endowed. 



