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PHYSIOLOGY 



the difference depends on the fact that the non -dissociated salt must be equal on the two 

 sides of the membrane and that the dissociation is much impeded on the inner side on 

 account of the presence there of another salt of sodium. A sodium salt of any 

 other indiffusible substance, e.g. of a protein such as caseinogen, would behave in a 

 precisely similar fashion. 



