86 



THE CHEMISTRY OF CREATION. 



tent of these destroying agents, and as such 

 only represent a very small amount of the 

 debris actually produced. The greater part 



DKBBIS AT THE BASE OF CLIFFS. 



of it is swept down by rain and borne away 

 to be deposited in the last resting-place of 

 the rivers, whether that be lake or ocean into 

 which it ultimately falls. The granitic summits 

 of Mont Blanc, and of the adjoining range, ex- 

 posing a vast surface to the atmosphere, are of 



