SOI.AR RESEARCH AT MOUNT WILSON, CALIFORNIA. 171 



Hour of observation. 



May. 



1*.. 

 2... 



3-- 

 4... 



5-- 

 6... 



7... 



8... 



9t.. 

 10... 

 II... 

 12... 



13-.. 

 14... 



I5-- 

 16... 

 17... 

 18... 

 19... 

 20... 

 21 .. 

 22... 

 23... 

 24... 



25t.. 

 26I.. 

 27... 

 28... 

 29... 

 30... 

 31.... 



June. 



It 



2 



3 



4 



5 



6 



7 



8 



9 



10 



II 



12 



13 



14 



IS 



16 



17 



18 



19 



20.. . . 



21 



22 



23 



24 



25 



26 



27 



28 



29 



30 



Hour of observation. 



8 9 



8 

 8 

 7 



6 

 6 



8 



Hour of observation. 



July. 



I... 

 2... 



3- 

 4... 



5- 

 6... 



7... 



8... 



9... 

 10... 

 II... 

 12.., 

 13.., 

 14.., 



15- 

 16.. 

 17.. 

 18.. 

 19.. 

 20.. 

 21.. 

 22.. 



23" 



24.. 



25- 



26. 



27. 

 28.. 

 29.. 

 30.. 



3I" 



August. 



I... 

 2... 



3- 

 4... 



5- 

 6... 

 7... 

 8... 



9- 

 10... 

 II... 

 12... 



'3§- 

 Hi 

 i5". 

 16... 

 17... 

 18.., 

 19.., 

 20.. 



21... 



22|, 



23" 

 24.. 



25" 



26.. 

 27.. 

 28.. 



29" 



30" 



3it 



Hour of observation. 



* Snow. 



t Cloudy 



X Rain. 



g Storm. 



