Z. Page — Relativity and the Ether. 



From (10) the ether strain at P is 

 e (1 - F) 



185 



E 



4ira*(i + p cos ey 



Fig. 3 



i — z 



where is the angle between QP and the Z axis, and <?/3 is 

 the velocity of the center of strain at a time t = — 



i. e. 



c 8 



/l+*£ 



In order that there shall be no ether strain inside this 

 equipotential surface, and in order that the ether strain out- 

 side shall be that given by (10), it is necessary that there 

 should be a surface distribution of charge given by 



e O-ff) 



°" 47ra 2 (l + JScosdy 



