60 CUBBENT FORCE. CHAP. V. 



manifested, and that consequently it is a polar 

 phenomenon. Perhaps it would be as well for the 

 present to consider it as an organic act, and it may 

 be looked upon as a case of organic endosmose, whilst 

 secretion, on the other hand, may be considered as a 

 case of organic exosmose. 



