ON SUNSPOTS AND EAINFALL. 



241 



The mean for the mean cycle is 6 ft. 47 inches, and also 6 ft. 47 

 inches for the years 1816 to 1861. 



Table XVI. — Depths of the Elbe. — Minimum years in 8th line. 



32. The next table gives the fluctuations of the Rhine from 1799 to 

 1835. 



The Rhine attained its mean maximum level about one year after the 

 year of maximum sunspots. 



The mean of the mean cycle is 8 ft. 10*4 inches, and the mean for 

 1799 to 1836 is 8 ft. 8-2 inches. 



V. — Rainfall of America compared with the Sunspots. 



33. The rainfall returns for America, thirty-four in number, have 

 been obtained from ' Tables and Results of the Precipitation in Rain and 

 Snow,' published by the Smithsonian Institution (Washington, 1872). 



1878. R 



