CONTENTS OF VOL. I. xi 



Renewed Correspondence with Prince Canino 

 about Journey to the United States. Change of 

 Plan owing to the Interest of the King of Prussia in 

 the Expedition. Correspondence between Profes- 

 sor Sedgwick and Agassiz on Development Theory. 



Final Scientific Work in Neuchatel and Paris. 

 Publication of " Systeme Glaciaire." Short Stay in 

 England. Farewell Letter from Humboldt. Sails 



for United States . 366 



