WHOLE VOL. 



NORTH AMERICA 



347 



DULUTH, UNITED STATES 



Lat. 46°47' N. Long. 92°6' W. 



Mean 1.31 1.12 1.62 2.32 3.03 2.99 2.58 3.26 2.73 2.26 1.95 1.04 26.09 



