The Motion and Distribution of the Sun-spots 



95 



It is with special pleasure that I take this opportunity of expressing my gra- 

 titude to Professor C. V. L. Chaelier, not only for the suggestion of this and 

 other works but also for the warm interest with which he has followed the progress 

 of the present investigation. 



I also wish to convey my thanks to the Boyal Physiographical Society of 

 Lund for the grant which has been made to me, for the furtherance of this work, 

 out of tl)e Society's Retzius Fund. 



