484 



Mr. Warreri De La Bae 



[Jan. 21, 



which I connect with one pole of the battery and the other to earth, 

 the other pole of the battery being also connected to earth, you 

 will notice a uniform decrease of divergence of the balls, because 



the potential decreases uniformly for equal di5^tances, whereas this 

 docs not occur when pith balls arc suspended to the rings of a 



