ON SUNSPOTS AND RAINFALL. 



245 



40. For Bombay alone we have the following results : — 



Table XXIV. — Rainfall of Bombay. — Maximum years in 6th line. 



The rainfall is at its maximum about a year before the time of 

 maximum sunspots. 



The mean of the cycle is 72 - 3 inches, and of the rainfall for the 

 forty- four years 71 - 4 inches. 



If the minimum years be placed in the eighth line, it will be found 

 that the minimum rainfall occurs a little after the minimum of sunspots, 

 and that it is eleven inches below the mean, but, generally, the variation 

 is rather irregular. 



41. The Madras rainfall gives the following results : — 



Here we have evidence of a double oscillation in the rainfall. 



The mean of the rainfall from 1813 to 1877, and also for the cycle is 

 48 '5 inches. 



As a matter of fact, the Madras rainfall is below its mean when the 

 sunspots are at their maximum. 



42. The following results are obtained for Madras by the converse 

 arrangement. 



