1897 - 98 .] 
Electric Equilibrium of Uranium. 
133 
These experiments lead us to infer that two polished metallic 
surfaces connected to the sheath and the insulated electrode of an 
electrometer give, when the air between them is influenced by the 
uranium rays, a deflexion from the metallic zero the same in 
direction, and of about the same amount, as when the two metals 
are connected by a drop of water. The uranium itself may be one 
of the two metals. 
