360 



A STUDV OF CORRELATIONS AMONG TERRESTRIAL TEMPER.VrURES. 



Table X . — Concluded. 

 Monthly Simidtaneous Deviations of Temperature in Widely Separated Regions. 



Fourth Period (concluded). 



To investigate the correlation among the stations we apply the method and 

 formulae of § 4, as we have done in the case of the annual deviations. For example, 

 we have for the first period, 1871 and 1872, 



1871 : 



1872: 

 also 



Thus, this period alone gives 



St^ = 7.6 + 1.7 + 1.6 + 5.4 = 16.3 

 " = 1.3 + 6.6 + 1.8 + 2.9 = 12.6 



5;.T='= 1.26 + 0.98 = 2.24 



^ijv' = 28.9 



