THE SYSTEMIC NERVE CELL 321 



core of each axis-cylinder, affording a pathway, along 

 which nervine messages are carried to and fro, and 

 through which the presiding ego acts, and is reacted upon, 

 by the non-ego ? Here, however, all is mystery, in the 

 solution of which, observation, and experiment, seem alike 

 helpless, we, therefore, bid adieu to the alluring subject, 

 hoping to take it up again, when an opportunity for 

 its metaphysical study shall present itself. 



