Memoirs National Academy of Sciences XIII. 



Plate 33. 







1ELVILLL BAf. 



GREENLAND. 



75 " 70" 





0^ 



\ 



A 



B R I T l 5M 



A 





C OLD M B I A 





ALASKA 



\ /LSTL^N 



CANADA ^ 



^ 



Beaver Creefi. 

 5I-ION* CcA, 



Iron Creek 



53-o/V. 



