ABNORMAL IRRITABILITY PRODUCED BY SALTS 707 



into contact with any solid or liquid body (conductor or non- 

 conductor) the contractions of the muscle will be resumed, 

 while they will gradually cease or diminish when the nerve 

 is again surrounded by air on all sides. 



4. The fact that certain ions are capable of bringing 

 about forms of irritability in nerves and muscles which do 

 not exist normally may perhaps furnish the explanation of a 

 number of certain morbid phenomena (neuroses, hysteria) in 

 which the motor and sensory reactions of the patient are 

 modified. 



