118 



Do ve über die nicht periodischen Veränderungen 



144) Council Bluffs (Nebraska). 

 1821 |10.78 [24.14 137.00 |45.06 |58.59 |75.00 J72.14 [77.76 [64.16 |54.89 [35.94 |14 92 1 47.53 



1832 



703) Fort Dearborn (Illinois). 



[ _ | _ | _ | _ 71.25 |71 95 |63 40 |54 43 40.10 |33.38| 



Mittel [23.60 (24.74 ,32 30 [46.08 |56.32 [62.67 |70.77 ,68.55 |60.10 |48.54 |37.90 |29.37 | 46.75 



