(3 S. Hirayaira. 



^=866'. 6± 128' sin^/, where ç denotes the angular velocity and ?^ the 

 latitude. TJiese values obtained by his formula are generally 

 greater than iny results. That is, they do not correspond exactly 

 to the angular velocities for my Maximum I. As to the second 

 Maximum, I have obtained a pretty good continuous curve by 

 merely connecting the successive positions of Maximum II, 

 corresponding to different zones. 



3. Next I pass on to examine Carrington's observations of 

 the spots on the sun so far as they bear on the question of the 

 existence of a secondary maximum. All the materials from which 

 Carrington deduced his formula for the daily motion of the surface 

 of the sun in different solar latitudes are condensed in his " Table 

 of Resulting Diurnal Motions" contained in pp. 213-219 of his 

 work. I have availed myself of the same materials, and deduced 

 Table IV which shows the distribution of tlie sun-spots observed by 

 him in each zone of latitude 5° wide, with different daily drifts. 



Table IV. 



Carrington's Numbers of Sun-spots, arranged in Sones of Latitudes 5° wide, 

 giving Different Diurnal Motions (1853-1861). 



