A STUDY OF CORREL.\TIOXS AMONG TERRESTRIAL TEMPERATURES. 



341 



Although the reality of this 1 1 -year fluctuation seems to be placed beyond serious 

 doubt, the amplitude being several times its probable error, its amount is too small to 

 produce any important direct effect upon meteorological phenomena. 



§ 9. Studi/ of Irregular Fluctuations of the Mean Annual Temperature. 



The next question before us is whether, after correcting the annual departures of 

 temperature for the sun-spot inequality, indications can be found of fluctuations in the 

 general temperature other than those arising from accidental deviations. In this 

 study we apply the statistical method developed in Chapter II, § 4, preceding. The 

 data are shown in Table V, which is formed from Table II by reducing to the centi- 



Table V. 

 Reduced Animal Deviations of Temperature at Stations or in Regions in Degrees C. 



A. P. S.— XXI. UU. 14, ],'08. 



