PROTOPLASMIC STRUCTURE 131 



muscle.^ This result indicates again that the inter- 

 posed plasma membranes offer a high resistance to the 

 movement of ions, while the resistance of the continuous 

 protoplasm is relatively slight."^ 



^Hermann, Arch. ges. Physiol., V (1872), 223. The character of 

 the intercellular partitions and their arrangement will, of course, afTcct 

 the inner conductivity of the cell, but regarding these conditions we have 

 little information at present. 



2 Compare the conclusions of Stewart (/. Pharmacol, and Expcr. 

 Therapeutics, I [1909], 49); also Chambers (1922), loc. cit. 



