242 



REPORT — 1878. 



Table XVIII. — Rainfall of America. — Maximum years in 6th line. 



The maximum rainfall occurs about two years after the maximum 

 sunspots. 



The mean rainfall for the cycle is 41*6 inches, and for the forty-four 

 years 41.3 inches. 



34. From the converse process we get the following table : — 



Table XIX. — Rainfall at ten stations in America, from 1849 to 1861.- 

 Minimum year in 8th line. 



The minimum rainfall took place at the time of minimum sunspots. 



The mean of the mean cycle is 41'8 inches, and the mean from 1849 

 to 1861 is 41 - 7 inches. 



35. The longest series of observations was made at New Bedford. 

 Taking the period 1824-67, we get the following results for that 

 station : — 



