500 ELECTRO-PHYSIOLOGY 



Page 449, line 35, for proper read itself. 

 Page 450, line 26, for no trace read only a trace. 



Page 451, line 28, after the read presence of the alterations fundamental to the 

 after-current. 



Page 452, line 22, for exist read be manifested, insert quite before different. 

 Page 453, line 23, delete or after positive. 

 Page 459, line 19, for end read close. 



