90 



Dove über die jächt periodischen Veränderungen 



712) Fort Smith. 



133) 174) Fort Snelling. (St. Antony) 



147) 175) Fort Sullivan. (East Port) 



1822 

 1823 

 1824 

 1825 

 1826 

 1831 

 1832 

 1833 

 1834 

 1835 

 1841 

 1842 



17.86 ,22.98 



21.02 



20 91 



21 18 

 23.17 

 19.87 

 25.78 

 23.18 

 19.48 

 24.34 

 30 13 

 23.95 



17.30 

 21.11 

 22.35 

 22.72 

 24.57 

 20.35 

 20.19 

 29.99 



22 20 



23 97 

 27 96 



62.24 

 62.22 

 62.27 

 64 83 

 67.53 

 66.58 

 62 11 

 60.50 

 61.04 

 59.67 

 59.22 

 61 41 



Mitte] 



22.57 | 22.97 j 31.23 | 39.72 | 49.44 | 56.87 | 64.14 | 63.47 j 57.22 j 47.34 | 36.37 | 26.19 | 



