156 



Do ve über die nicht periodischen Veränderungen 



Mittel 125 54 |19.47 |30.52 ,43.42 157.25 |65 51 173 20 169.05 162.64 ^9.69 ^8.12 |25.59| 46.71 



769) Lowell. 



1851 



1852 

 1853 



32.00 32.00 36.13 46 52 

 21.13 28.00 34.29 40 99 



'22 66.20 

 .65 69.98 



33.30 37.10 40.66 ,53.00 J61.13 74.60 



7542 

 75.70 

 71.15 



72 19 67.92 55.81 38.00 

 70.18 63 58 [50 75 38.75 

 71.55 64.33 48.86 46.17 



32.00 

 33.85 

 31.08 



52.74 



1279) Fort Madison (Jowa). 40° 37' B. 91° 28' L. 550' H. 



1854 [21.16 |32.97 ]42 67 |56 20 ,65 96 ,76.33 85.77 81.57 J72.70 [58.40 139.25 30.44 I 55.29 



1855 |26 95 21.15 33.87 |57 37 (64 73 |72 21 J70.26 ,73 49 |70 39 [49.73 |4I.26 |24.02 | 51.20 

 Mittel |24 06 27.06 138.27 156.79 ^5.35 j74 27 |82.52 |77.53 [71.55 J54.06 ^0.25 127.23 I 53.24 



Mittel 124.23 121.20 132.47 i42.79 |59.12 i67.38 ,75.17 168.78 i60.73 |53 62 |38.07 125.48 I 47.42 



36) Marietta. 



