94 



O. A. Åkesson 



The angular velocity of the northern hemisphere is positively greater during the 

 first period (1886—1897) than during the second (1898—1909). On the con- 

 trary, no such difference seems to exist for the southern hemisphere. (Page 38, 39). 



5. The large spots give a greater angular velocity than the small ones, a fact 

 which may be explained in supposing the smaller spots generally to occur 

 m deeper lying layers than the larger. (Page 44). 



6. Spots on the western half of the sun give a greater angular velocity than 

 spots on the eastern. (Page 90). 



7. The dispersion of the motions of the spots diminishes with increasing spot- 

 area. The relation between g and w is approximately expressed by 



co-j- constant. (Page 64). 



8. The quotient between the dispersion of the motions in latitude and longitude 

 seems to increase with increasing spot area. (Table XXIX on page 62). 



9. The latitude drifts towards the poles and the equator assumed by Carring- 

 TON are not in the least indicated. On the contrary, there exists an inconsi- 

 derable northern drift in both hemispheres. (Page 46). 



10. In the latitude motions there exists an evident annual period, which is most 

 conspicuous during the years 1886 — 1897. The computed corrections of the 

 sun's axis show^ that the inclination between the sun's equator and the ecliptic 

 has shown an increase of about 9' from the first period to the second. (Page 56). 



11. Between the motions in longitude and latitude there exists a negative corre- 

 lation in the northern and a positive in the southern hemisphere. The angle 

 between the line of symmetry of the frequency-surfaces and the equator seems 

 to increase with increasing latitude. (Page 72). 



12. There exists a pronounced preponderance of spots on the eastern half of the 

 sun. (Page 79). 



13. The opinion expressed by Stephani that about 90 % of the » large» spots 

 arise on the side of the sun turned from the earth, is not in the least 

 confirmed by the observations used in this investigation. (Page 8). 



14. There seems to be no reason for Hibayama's assumption of two different 

 drifts of sun-spots. (Page 91). 



