LIFE WHAT IS IT? 447 



great debatable area of trophic integration and disin- 

 tegration. 



The aqueous element, therefore, in the economy of 

 alimentation and life is the sine qua non of plasmic change 

 and trophic utilisation, as well as physiological hygiene- 

 being at once the vehicle of conveyance and the instrument, 

 or medium, of exchange in the process of nutrition, thus 

 marking the complete circulatory patency of the whole 

 vital area, and its associated non-vital " hinterland," so to 

 speak. 



In lending itself to the accomplishment of these pur- 

 poses it becomes the basis of every organic fluid in the 

 body, these fluids being universally derived from and 

 returning to the liquor sanguinis, to be still further utilised 

 or finally eliminated. 



