xviii OBITUARY NOTICES OF MEMBERS DECEASED. 



The excellent portrait before you is especially welcome, since it 

 is the gift of many, not of a few, of his admirers. As it hangs on 

 the walls of this room it should serve as a model to us all. What 

 happier lot can be asked for a man who, after retirement for age 

 from the service of the United States, could continue his work with 

 the greatest vigor, could live to see the greater part of it completed, 

 and who retained his intellectual powers to the end? 



In the name of the American Philosophical Society, I accept this 

 gift to it, and tender the thanks of the members to the donors. 



