106 



EMINENT NATURALISTS. 



ence on geology by means of his palaeontological 

 researches, still it is as a glacialist that the name of 

 Agassiz will always be prominently associated with 

 that science. Venetz's, Schimper's, and especially 



View of the Jungfrau. 



Charpentier's observations and theories on the greater 

 extension of glaciers and their relations to erratic 

 blocks attracted the attention of the young naturalist 

 in 1836 to the glacial phenomena of Switzerland. 

 Charpentier's theories on the former extension of 



