466 GENERAL DISCUSSION 



but also from the standpoint of the chemical environment. I could not help but 

 agree with Dr. Lipetz when he raised the question — what is happening to the 

 neuroglia here? We have long wondered whether or not they may help to 

 conduct the nervous impulse. This is an excellent method, it seems to me, for 

 answering this old question. It is also a good method to us for the study of 

 environmental vascular changes. 



