ON SUNSPOTS AND BAINFALL. 



237 



Considering that there are only two sunspot periods, the results may- 

 be regarded as favourable. The rainfall and sunspots were both above 

 ( + ) or below ( — ) their respective means in the same years. 



I have used Dr. Ielinek's table in preference to a more extensive one, 

 becanse, like Mr. Symons's table, it furnishes independent evidence. 



24. In the next two tables the rainfall of Paris is compared with the 

 sunspots. The series of observations at thi3 station is so long that eight 

 complete sunspot cycles might be taken, but, as objection has been made 

 to going back much farther than the time when Schawbe commenced his 

 observations, only four cycles are taken in one of these tables, and five 

 in the other. 



The maximum rainfall' coincides with the maximum sunspots. 



The mean of the mean cycle is 513 m.m., and the mean rainfall for the 

 whole period (1824-67) is 517 m.m. 



As in the case of the annual means for forty-five stations (Table 

 VII.), the rainfall is somewhat above the mean in the eleventh year of 

 the cycle. 



25. The converse process is given in the following table. 



