374 



A STUDY OF CORRELATIONS AMONCI TERRESTRIAL TE.MPERATURES. 



What we have next to do is to sum all the squares through the whole period of 

 33 years. This summation, with the partial values of A which result from it, is shown 

 in the next table. The most noteworthy circumstance here brought out is the com- 

 plete absence of any systematic value of the residual A. This may be shown by 

 dividing the series into three parts during each of which the stations remained 

 unchanged. The result is as follows : 



Summation of Squares for Ten-day Deviations. 



71 = 4 



n = 3 



Years 



1899 

 1900 

 01 

 02 

 03 

 04 



Sum 



U. S. I 



124 

 73 

 68 



100 

 99 

 68 



532 



U. S. II Samoa 



9 



^v: 



101 

 1.36 

 131 

 100 

 100 



656 



10 



8 

 7 

 7 

 2 



42 



—33 



-21 

 -27 

 —36 

 +27 

 + 6 



—84 



