202 



DALL 



ascended and mapped the Yukon to Fort Yukon and the 

 boundary, while Ketchum pushed on in birch canoes to the 

 site of old Fort Selkirk, both returning together to the sea. 



FIRST AMERICAN EXPLORER OF THE YUKON. 



Robert Kennicott, naturalist, born November 13, 1835, died at Nulato, on the Yukon River, 

 May 13, 1866. 



Space fails to enumerate the details of the surveying 

 and scientific research which were carried on by this ex- 

 pedition or resulted indirectly from its work, 1 but there 

 is little doubt that the acquisition of Alaska by the United 

 States was largely due to the information brought back 

 by the telegraph explorers. 



1 An account and bibliography of this subject is to be found in the Bulle- 

 tin of the Philosophical Society of Washington, XIII., pp. 123-162, December, 

 1895. 



