THE PHENOMENA OF ELECTROSTATICS. 



2I 3 



force which emanate from B terminate on the inner surface of 

 the vessel. Therefore, if -\-q is the amount of charge on B, 

 q is the amount of charge on the inner surface of the vessel 



silk 

 thread 



Fig. 144. 



Fig. 146. 



Fig. 147. 



and -f q is the amount of charge on the external surface of the 

 vessel in Fig. 145. 



After the body B has been completely enclosed by the metal 

 vessel as shown in Figs. 145, 146, and 147, the distribution of 



