8 



s. Hirayama. 



Plate II. The method of treatment of the material in Plate II is 

 just the same as before. Here again, as in the previous case, the 

 secondary maximum is clearly brought out in each curve. Graph- 

 icalty determined maxima may be tabulated as foUows : 



Table V. 



Angular Velocity corresponding to Maximum I, deduced from 

 Carrington's Observations. 



Heliog. 

 Latitude 



Observed Angular Velocity. 



Number of 

 Spots in 

 Maximum 



Heliog. 

 Lati ude 



Smoothed 



Ang. Vel. 



Jc 



Carring- 

 ton's Ang. 

 Vel. 



8° 

 13 

 18 

 23 



28 



851'+ 5'=856'=14.''27 

 „ - 2 849 14.15 

 „ -11 840 14.00 

 „ -20 831 13.85 

 „ -33 818 13.63 



13 



19 



13 



9 



8 



2.5 

 7.5 

 12.5 

 17.5 

 22.5 

 27.5 



(14.°36) 

 14.27 

 14.16 

 14.02 

 13. b6 

 13.67 



14.°42 

 14.35 

 14.21 

 14.06 

 13.90 

 13.73 



Table VI. 



Angular Velocity corresponding to Maximum II, deduced from 

 Carrington's Observations. 



