AN ANALYSIS OF SYMBIONT REACTIONS 103 



nature of protoplasm so that it does not respond to the 

 influence of chemico-physical forces? There is no evidence 

 at hand to show that such is the case. On the contrary, 

 it is well known that many responses of protoplasm are 

 due to chemical and physical influences. Obviously, it 

 will require more extended observations and experimental 

 analyses to determine the nature of these reactions in 

 mycrosymbiosis. 



