6— SOLAR ACTIVITY IN 1904-1907. 

 By H. D. Badcock, M.A., M.Inst.C.E., F.R.A.S. 



[Abstract.] 



Deals with 466 observations of the sun made at Pretoria between 

 December, 1904, and April, 1907, and of 397 spot groups with transit 

 theodolite and s^A" O.G. 



Describes determination of period of rotation, inclination of 

 solar axis, and motion and latitude of spots. 



History of solar activity for period. 



Notes on phenomena characteristic thereof. 



