INORGANIC RESPONSE Eu7 
continuously. At the fifth response the two phases, 
positive and negative, become equal, after that the 
positive becomes very prominent, the negative being 
reduced as a feeble after-vibration. 
It need only be added here that the diphasic varia- 
tions as exhibited by metals are in every way counter- 
parts of similar phenomena observed in animal tissues. 
