72 



REPORT — 1886. 



Table I. — 8emi-Annual Solar-Diurnal 



1870. 



Summer. 



April ( Greenwich 

 to \ Kew (1) . 



September ( Kew (2) . 



WixTEi;. 



.Tan. to Mar. ( Greenwich , 



and \ Kew (1) . 

 Oct. to Dec. (.Kew (2) . 



1871. 



Summer. 



April ( Greenwich 



to \ Kew(l) . 



September \ Kew (2) . 



Winter. 



Jan. to Mar. 



and 

 Oct. to Dec. 



Greenwich 

 Kew (1) . 

 I Kew (2) . 



1872. 



Summer. 



April ( Greenwicli 



to - Kew (1) . 



September ( Kew (2) . 



Winter. 



Jan. to Mar. ( Greenwich 

 and \ Kew (1) . 

 Oct. to Dec. (Kew (2) . 



MEANS OF 



SuMsujn. 

 I Greenwicli 



April 



to 

 September 



Kew(l) . 

 Ken- (2) . 



WlXTKR. 



r Greenwich . 

 Jan. to Mar. 



Kew (2) 



/■Gn 



and "•■jKew(l). 

 Oct. to Dec. I , 



Differences ot 3 years' Semi- J 

 annual Means . . . . i 



Differences of 3 jxars' Semi- | 

 annual Means . . . . T 



Differences of 3 years' Semi- f 

 annual Means .... 1 



